Увійти

Готові списки джерел за темами / Artificial insemination / Статті в журналах

Статті в журналах з теми "Artificial insemination"

Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Artificial insemination.

Автор: Grafiati

Опубліковано: 4 червня 2021

Оновлено: 10 березня 2023

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Ознайомтеся з топ-50 статей у журналах для дослідження на тему "Artificial insemination".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Переглядайте статті в журналах для різних дисциплін та оформлюйте правильно вашу бібліографію.

1

Fennessy, P. F., C. G. Mackintosh, and G. H. Shackell. "Artificial insemination of farmed red deer (Cervus elaphus)." Animal Science 51, no. 3 (December 1990): 613–21. http://dx.doi.org/10.1017/s0003356100012654.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

ABSTRACTSix experiments involving the artificial insemination (AI) of a total of 300 female red deer (hinds) with frozen-thawed red deer semen (collected by electro-ejaculation) were conducted over 3 years. Insemination took place at fixed times following various oestrous synchronization procedures using progesterone withdrawal and treatment with pregnant mare's serum gonadotropin (PMSG). In the 1st year, the experiments evaluated basic AI techniques in which pregnancy rates were 45% in 20 hinds receiving two inseminations per vaginam (PV) and 56% in 27 hinds inseminated by the laparoscopic intrauterine method (IU). In the 2nd year, the experiments involved comparisons of the progesterone regime, one or two PV inseminations, and the timing of a single PV insemination. There was no effect of replacement of the progesterone device after 9 days and withdrawal 3 days later compared with the use of one device for the whole period in two experiments. The pregnancy rate for a double PV insemination was significantly higher than for a single PV insemination (58 and 34%; P < 0·05) and there was also a small effect of timing of insemination relative to the synchronization treatment. In the 3rd year all hinds were inseminated by the IU method. The experiments involved a comparison of various times of AI following progesterone withdrawal and a comparison of the progesterone regime. The overall pregnancy rate for 63 hinds inseminated was 56% with no difference between three times of insemination (48, 52 and 55 h). In the second experiment, the difference in pregnancy rate between treatment with progesterone for 15 days and 12 days (44 and 72% for 18 hinds per group) was not significant, but the interaction between the length of progesterone treatment and insemination time was significant (P < 0·05), with the 12-day progesterone/55 h insemination giving a much higher pregnancy rate than the 15-day/55 h insemination (89 and 20% respectively). Although no experiments involved direct comparisons of the routes of insemination, overall pregnancy rates were 56% for IU, 53% for double PV and 35% for single PV inseminations.

2

James, David N. "Artificial Insemination." Philosophy and Theology 2, no. 4 (1988): 305–26. http://dx.doi.org/10.5840/philtheol19882410.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

3

Guttmacher, Alan F. "ARTIFICIAL INSEMINATION." Annals of the New York Academy of Sciences 97, no. 3 (December 15, 2006): 623–31. http://dx.doi.org/10.1111/j.1749-6632.1962.tb34673.x.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

4

IIZUKA, RIHACHI. "Artificial Insemination." Annals of the New York Academy of Sciences 626, no. 1 Frontiers in (June 1991): 399–413. http://dx.doi.org/10.1111/j.1749-6632.1991.tb37932.x.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

5

Senatore, E. M., S. Verberckmoes, M. Pascale, and G. A. Presicce. "21DEEP UTERO-TUBAL SEMEN DEPOSITION IN MEDITERRANEAN ITALIAN BUFFALOES USING A NEW ARTIFICIAL INSEMINATION DEVICE." Reproduction, Fertility and Development 16, no. 2 (2004): 133. http://dx.doi.org/10.1071/rdv16n1ab21.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The use of AI in the buffalo species is still marginal due to traditional lower conception rates when compared to cattle. However recently a number of studies in this field have revealed a promising increase in the efficiency of synchronization protocols for AI linked to more acceptable pregnancy rates. The possibility of using lower spermatozoa concentration of high quality buffalo bulls for AI without reduction in pregnancy outcome can be an additional offset, especially if such spermatozoa can be sexed and used for better reproductive management in buffalo farms. Within this conceptual framework, a new artificial insemination device for semen deposition near the utero-tubal junction (UTJ) in cattle (Ghent device), developed at the University of Ghent (Belgium), has been used in this study. The Ghent device is made of disposable materials and consists of 2 hollow plastic tubes, wherein a catheter filled with semen is introduced. The outer tube is completely rigid, while the inner tube consists of a rigid caudal end and a flexible cranial tip. The outer plastic tube can move independently from the inner tube. Once the insemination device is introduced into the uterine body, the inner tube with its flexible tip is moved forward. The flexible tip makes it possible to follow the curvature of the contractile uterus of the estrous cow, but excludes the use of Cassou straws. The semen is then expelled from the catheter by means of 0.1mL of air followed by 0.6mL of physiological saline solution. To assess the efficacy of the new Ghent device, 67 buffalo cows (Bubalus bubalis) were inseminated during a field trial. Two different insemination methods were used: (1) insemination with the conventional insemination device in the uterine body, and (2) insemination with the Ghent device near the utero-tubal junction ipsi-lateral to the site of ovulation. Artificial insemination was performed twice at 72 and 96hrs after administration of prostaglandins to buffaloes bearing a functional corpus luteum as recorded during ultrasound monitoring. Conventional inseminations were performed with full (16–20×106) and half (8–10×106) insemination doses of frozen-thawed semen, while UTJ-inseminations were performed with full, half and quarter (4–5×106) insemination doses. When inseminations were performed with the conventional insemination device, halving the insemination dose resulted in a non-significant decrease of conception rates from 53% (8/15) to 42% (8/19). However, no difference in conception rates was observed when UTJ-inseminations were performed with a full, half or quarter standard insemination dose: 50% (6/12), 45% (5/11) and 50% (5/10), respectively. Despite the limited number of inseminations performed, this preliminary field trial demonstrates that the Ghent device is suitable for the insemination of buffaloes under field conditions, and that UTJ inseminations can be performed with only one-fourth of the standard insemination dose without a reduction in conception rates.

6

Cox, John. "Equine Artificial Insemination." Veterinary Journal 164, no. 2 (September 2002): 162–63. http://dx.doi.org/10.1053/tvjl.2001.0644.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

7

Yates, Daniel J., and Michael D. Whitacre. "Equine Artificial Insemination." Veterinary Clinics of North America: Equine Practice 4, no. 2 (August 1988): 291–304. http://dx.doi.org/10.1016/s0749-0739(17)30642-9.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Waddy, S. L., and D. E. Aiken. "Fertilization and Egg Retention in Artificially Inseminated Female American Lobsters, Homarus americanus." Canadian Journal of Fisheries and Aquatic Sciences 42, no. 12 (December 1, 1985): 1954–56. http://dx.doi.org/10.1139/f85-242.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Female American lobsters, Homarus americanus, seldom are receptive to mating more than 24 h after they molt, a fact that complicates breeding programs in large facilities where animals are held individually. Artificial insemination can eliminate this problem, but preliminary studies have indicated poor fertilization success from intermolt inseminations. In the present study, 86 female American lobsters of wild and cultured stock were artificially inseminated in all postmolt and intermolt stages, 64 subsequently spawned, and 98% successfully fertilized their eggs, indicating no constraint of molt stage on success of insemination. Of artificially inseminated females, 50% of wild stock and 7% of cultured stock carried their eggs to hatch.

9

Thangavelu, G., M. Gobikrushanth, M. G. Colazo, and D. J. Ambrose. "Pregnancy per artificial insemination and pregnancy loss in lactating dairy cows of a single herd following timed artificial insemination or insemination at detected estrus." Canadian Journal of Animal Science 95, no. 3 (September 2015): 383–88. http://dx.doi.org/10.4141/cjas-2014-122.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Thangavelu, G., Gobikrushanth, M., Colazo, M. G. and Ambrose, D. J. 2015. Pregnancy per artificial insemination and pregnancy loss in lactating dairy cows of a single herd following timed artificial insemination or insemination at detected estrus. Can. J. Anim. Sci. 95: 383–388. The objective of this retrospective study was to determine the factors affecting pregnancy per artificial insemination (P/AI) and pregnancy loss in lactating dairy cattle. Breeding records (n=1466) for 5 consecutive years were evaluated from one dairy herd. The effects of type of breeding [timed artificial insemination (TAI; n=1246) vs. insemination at detected estrus (IDE; n=220)], parity (primiparous vs. multiparous), body condition score (BCS; low ≤2.5 vs. high >2.5), year, season (summer vs. other seasons) and fertility group (high fertile <3 vs. low fertile ≥3 inseminations), on P/AI and pregnancy loss (i.e., late embryonic/early fetal loss, abortion and stillbirth) were determined using the GLIMMIX procedures of SAS software. Pregnancy per AI was influenced by type of breeding and season. Pregnancy per AI was lower (P<0.05) in cows that were TAI (28.7%) than IDE (37.1%) and during summer (30.3%) than other seasons of the year (35.5%). Pregnancy loss was higher (P<0.05) in low BCS (9.1%) than in high BCS (1.9%) cows. However, parity, year, and fertility group affected neither P/AI nor pregnancy loss.

10

Novita, Cut Intan, Mohd Agus Nashri Abdullah, Eka Meutia Sari, and Zulfian Zulfian. "Evaluasi Program Inseminasi Buatan pada Sapi Lokal Betina di Kecamatan Juli, Kabupaten Bireuen, Provinsi Aceh." Jurnal Agripet 19, no. 1 (April 1, 2019): 31–39. http://dx.doi.org/10.17969/agripet.v19i1.13005.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

ABSTRAK. Penelitian ini bertujuan untuk mengetahui keberhasilan program inseminasi buatan pada sapi lokal betina. Penelitian ini dilakukan di Kecamatan Juli, Kabupaten Bireuen, Provinsi Aceh, yaitu Desa Keude Dua, Bunyot, Blang Ketumba, Paya Cut dan Desa Batee Raya. Metode survei digunakan dalam penelitian ini. Responden yang digunakan adalah peternak sapi lokal dan inseminator. Responden ditetapkan dengan menggunakan metode purposive sampling. Sebagai responden ditetapkan 40 peternak dan 4 inseminator. Peternak responden harus memenuhi kriteria memelihara minimal dua ekor sapi lokal yang telah beranak 2 (dua) kali dan sistem perkawinan dilakukan secara inseminasi buatan (IB). Inseminator telah memiliki Surat Izin melakukan Inseminasi Buatan (SIMI). Hasil penelitian menunjukkan bahwa pelaksanaan program inseminasi buatan di Kecamatan Juli telah berjalan dengan baik, dimana rataan nilai conception rate (CR) sebesar 88,05%, service per conception (S/C) adalah 1,2, jarak beranak (calving interval) sebesar 12,36 bulan, dan calving rate sebesar 84,23%. (Evaluation of artificial insemination programs in local cows in Juli district, Bireuen, Aceh Province) ABSTRACT. This study aimed to determine the success of the artificial insemination program in local female cattle. This research was carried out in Juli District, Bireuen , Aceh Province, namely the villages of Keude Dua, Bunyot, Blang Ketumba, Paya Cut and Batee Raya villages. The survey method was used in this study. Respondents were determined by purposive sampling method. Respondents used were local cattle breeders and inseminators. The respondents involved ware 40 breeders and 4 inseminators. Breeders must maintaining minimal two female local cows that have given birth 2 (two) times with artificial insemination as mate system. The Inseminator involved is the one who has Artificial Insemination License. The results showed that the implementation of the artificial insemination program in the District of Juli has gone well, where the average value of the conception rate (CR) is 88.05%, service per conception (S/C) is 1.2, calving interval equal to 12.36 months and calving rate is 84.23%.

11

England, Gary C. W., Marco Russo, and Sarah L. Freeman. "Artificial insemination in dogs and cats 2. Artificial insemination in dogs." In Practice 36, no. 4 (April 2014): 183–90. http://dx.doi.org/10.1136/inp.g1928.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

12

Moawad, Adel R., Niki C. C. Whitley, and Noble C. Ralph. "43 Establishing Pregnancy Following Artificial Insemination (AI) of Angus Cows: Experience from Fort Valley State University (FVSU)." Journal of Animal Science 100, Supplement_3 (September 21, 2022): 22–23. http://dx.doi.org/10.1093/jas/skac247.042.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Abstract Fixed-time artificial insemination (FTAI) provides a practical and feasible option for commercial and stud breeders to implement AI into their herds, as 100% of the herd can be inseminated at a predetermined time. FTAI can suit many herds, whether they are inseminating small numbers or the whole herd. We investigated the effects of sire and inseminator on pregnancy and birth outcomes following FTAI of Angus cows. Three Angus sires; namely GAR Quantum 7AN560, Square B True North 8052, and Tehama Tahoe B767, and two inseminators (1 and 2) were evaluated for differences in pregnancy outcomes and birth rates from 24 inseminations. Angus cows (N = 24) were synchronized with CIDR plus GnRH injection. After 7 days, CIDR was removed and each cow received 25 mg PGF2α. AI was conducted within 72 h from PGF2α injection. Cows were randomly assigned for AI between inseminators (12 cows inseminated by inseminator 1 and 12 cows by inseminator 2) and sires (6, 8, and 10 cows were inseminated by GAR Quantum, Tehama Taho, and True North semen, respectively. Pregnancy was diagnosed at 4-5 months after AI by transrectal ultrasonography. Percentage of re-cycling cows 21 days after AI was 45.8% (11/24). Pregnancy rate was 54.2% (13/24). Pregnancy rate was higher (P<0.05) for cows inseminated by inseminator 1 than by inseminator 2 (69.2% vs. 30.8%). The average age of pregnancy was 5.6 ± 0.2 months. Among sires, 46.2% (6/13) of the pregnant cows were inseminated by True North, 38.5% (5/13) by Tehama Tahoe, and 15.4% (2/13) by GAR Quantum. The pregnant cows gave birth to healthy calves at 280.8 ± 2.1 days after AI. In conclusion, both inseminator and sire affected the pregnancy rates and birth outcomes after AI in beef cattle. This study was conducted to support the establishment of a purebred Black Angus beef herd at FVSU with the application of AI.

13

Baruselli, Pietro, M. Sá Filho, A. Ambrósio, and R. Ferreira. "Estrategias para mejorar la fertilidad en bovinos: Inseminación artificial después del estro versus inseminación artificial a tiempo fijo." SPERMOVA 1, no. 6 (August 17, 2016): 36–42. http://dx.doi.org/10.18548/aspe/0003.06.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

14

Cushman, Robert A., Chadwick C. Chase, Jerica J. J. Rich, Emmalee J. Northrop, R. Mark Thallman, Warren M. Snelling, Larry A. Kuehn, Tami M. Brown-Brandl, and George A. Perry. "217 Influence of daily temperature fluctuations on estrus activity determined by an electronic estrus detection system and conception to artificial insemination in cross-bred beef heifers." Journal of Animal Science 97, Supplement_2 (July 2019): 125–26. http://dx.doi.org/10.1093/jas/skz122.223.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Abstract Behavioral estrus occurs in response to estradiol, and the intensity of activity registered in some electronic estrus monitoring systems is greater in dairy cows that conceive to artificial insemination compared to cows that do not conceive. Ambient temperature may influence estrus activity and follicular development. Therefore, we hypothesized that differences in temperature would associate with peak activity and conception to artificial insemination in cross-bred beef heifers. Heifers (n = 346) in south central Nebraska were observed twice daily for 21 d for behavioral estrus and artificially inseminated between June 4 and June 25, 2018. Onset of estrus and peak activity were extracted from the electronic system. Ambient temperature was merged with onset of estrus, and data were analyzed using the MIXED procedure of SAS with pregnancy status to artificial insemination as a class effect. There was no difference in peak activity between heifers that conceived to artificial insemination and heifers that did not conceive to artificial insemination (P = 0.45). The ambient temperature at onset of estrus was greater for heifers that did not conceive to artificial insemination than for heifers that conceived to artificial insemination (P < 0.05). Time of onset significantly influenced peak activity (P < 0.01), with the greatest peak activity occurring in the early morning hours and in the early evening hours. Daily temperatures increased until 1600 h and decreased thereafter (P < 0.01). Differences in peak activity do not associate with conception to artificial insemination in beef heifers as in dairy cows, but temperature at onset of estrus influenced conception to artificial insemination. Based on increased peak activity in the evening when temperatures were still greater than the early morning hours, the perceived trajectory of temperature may influence behavioral estrus more than the actual temperature. USDA is an equal opportunity provider and employer.

15

Rauthan, Aishee, and Ankur Negi. "Artificial insemination in cattle." International Journal of Veterinary Sciences and Animal Husbandry 7, no. 1 (January 1, 2022): 05–08. http://dx.doi.org/10.22271/veterinary.2022.v7.i1a.396.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

16

YOSHIOKA, MOTOI. "Artificial insemination of dolphins." Kagaku To Seibutsu 33, no. 12 (1995): 814–15. http://dx.doi.org/10.1271/kagakutoseibutsu1962.33.814.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

17

Newcombe, J. "Artificial insemination in horses." Veterinary Record 130, no. 6 (February 8, 1992): 128. http://dx.doi.org/10.1136/vr.130.6.128-a.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

18

Olshansky, Ellen Frances, and Lucy Newmark Sammons. "Artificial Insemination: An Overview." Journal of Obstetric, Gynecologic & Neonatal Nursing 14 (November 1985): S49—S54. http://dx.doi.org/10.1111/j.1552-6909.1985.tb02800.x.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

19

Morrell, J. M. "Artificial insemination in rabbits." British Veterinary Journal 151, no. 5 (September 1995): 477–88. http://dx.doi.org/10.1016/s0007-1935(05)80022-3.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

20

Rodger, John C., Damien B. B. P. Paris, Natasha A. Czarny, Merrilee S. Harris, Frank C. Molinia, David A. Taggart, Camryn D. Allen, and Stephen D. Johnston. "Artificial insemination in marsupials." Theriogenology 71, no. 1 (January 2009): 176–89. http://dx.doi.org/10.1016/j.theriogenology.2008.09.006.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

21

Watson, Elaine. "Artificial insemination in horses." In Practice 17, no. 2 (February 1995): 54–58. http://dx.doi.org/10.1136/inpract.17.2.54.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

22

Shepherd, Chris. "Artificial insemination in mares." In Practice 26, no. 3 (March 2004): 140–45. http://dx.doi.org/10.1136/inpract.26.3.140.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

23

Rodger, JA. "Artificial Insemination in Dogs." Australian Veterinary Journal 70, no. 12 (December 1993): 462–63. http://dx.doi.org/10.1111/j.1751-0813.1993.tb00863.x.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

24

Łukaszewicz, E. "Artificial insemination in geese." World's Poultry Science Journal 66, no. 4 (December 1, 2010): 647–58. http://dx.doi.org/10.1017/s0043933910000632.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

25

Crabo, Bo G., and Gary D. Dial. "Artificial Insemination in Swine." Veterinary Clinics of North America: Food Animal Practice 8, no. 3 (November 1992): 533–44. http://dx.doi.org/10.1016/s0749-0720(15)30702-7.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

26

Whetstone, Linda. "artificial insemination for thoroughbreds?" Economic Affairs 11, no. 5 (September 1991): 48–49. http://dx.doi.org/10.1111/j.1468-0270.1991.tb00822.x.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

27

Daniel, N., and J. P. Renard. "Artificial Insemination in Rabbits." Cold Spring Harbor Protocols 2010, no. 1 (January 1, 2010): pdb.prot5358. http://dx.doi.org/10.1101/pdb.prot5358.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

28

Hargreave, T. B. "Artificial insemination by donor." BMJ 291, no. 6496 (September 7, 1985): 613–14. http://dx.doi.org/10.1136/bmj.291.6496.613.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

29

Szöllősi, J., G. Ugocsai, and M. Sas. "Monitoring of artificial insemination." International Urology and Nephrology 20, no. 4 (July 1988): 403–8. http://dx.doi.org/10.1007/bf02549573.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

30

Guinan, Mary E. "Artificial Insemination by Donor." JAMA 273, no. 11 (March 15, 1995): 890. http://dx.doi.org/10.1001/jama.1995.03520350072033.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

31

Fletcher, John C. "Artificial Insemination in Lesbians." Archives of Internal Medicine 145, no. 3 (March 1, 1985): 419. http://dx.doi.org/10.1001/archinte.1985.00360030051008.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

32

Miller, Joana, Ana Luísa Neves Alvarenga, Luis David Solis Murgas, Adriana Cristina da Silva, Ricardo Sales Araújo, and Daniele de Lima. "Sperm concentration on the intrauterine artificial insemination in swine." Ciência e Agrotecnologia 33, no. 6 (December 2009): 1671–74. http://dx.doi.org/10.1590/s1413-70542009000600030.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The aim of this work was to evaluate the efficiency of the intrauterine insemination (IUI) in swine, considering the conception rate, farrowing rate, litter size (alive born pigs). For the IUI, the females had been insemination at 24 and 48 hours after the estrus detection, and the inseminating doses of 500 million, 1 billion, 1.5 billion and 2 billion spermatozoa in 20 mL extender had been used. The procedure of catheter insertion through the cervical canal was successfully performed in 97.9% of the females. The conception rate was 6.3% in the IUI. The farrowing rate in IUI was 87.2% but the farrowing rate was 100% for the sperm concentration of 500 million. Regarding the number of born pigs and alive born pigs observed in females inseminated with IUI, no significant difference was observed (p > 0.05). The concentration of 500 x 10(6) spermatozoa in 20 mL extender in the intrauterine insemination resulted in an optimal reproductive performance.

33

Stevenson, Jeffrey S. "Reinsemination intervals after timed artificial insemination or estrus-detected inseminations." Kansas Agricultural Experiment Station Research Reports, no. 2 (January 1, 2012): 22–28. http://dx.doi.org/10.4148/2378-5977.3104.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

34

Pytlík, Jan, Luděk Stádník, Jaromír Ducháček, and Radim Codl. "Comparative Study of Pregnancy Rate of Dairy Cows Inseminated with Fresh or Frozen-Thawed Semen." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 68, no. 3 (2020): 573–81. http://dx.doi.org/10.11118/actaun202068030573.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The aim of this study was to investigate conception rates (CR) achieved with artificial insemination of Holstein cows using fresh or frozen insemination doses (ID). The synchronization protocols (Double-Ovsynch, Ovsynch, ReSynch) and pedometers were used to secure proper timing of artificial inseminations (AI). Total of 3979 inseminations data were recorded. Statistical analysis was performed using the SAS 9.3 package. For the evaluation of a CR, the effects of ID type, season, year, sire breed, lactation number and oestrus detection type, were analysed. Cows inseminated with fresh ID performed higher CR (+4.86%; P < 0.05). Best pregnancy per artificial insemination (P/AI) success was observed during the winter season (+11.82%; P < 0.01). Parity affected P/AI with primiparous having a greater P/AI than multiparous cows (P < 0.01). The least likelihood of pregnancy success matched up with ReSynch and the highest with Ovsynch protocol (+7.7%; P < 0.05). In conclusion, fresh ID manifested superior CR over frozen-thawed semen under common conditions of Czech dairy farming. Similar or better P/AI was achieved when an automated activity monitoring were used rather than timed AI based on Ovsynch protocol, indicating a possible reduction in hormonal treatment applications without affecting fertility of high producing dairy cows.

35

Setiawan, Duta. "Artificial Insemination of Beef Cattle UPSUS SIWAB Program Based on the Calculation of Non-Return Rate, Service Per Conception and Calving Rate In The North Kayong Regency." International Journal of Tropical Veterinary and Biomedical Research 3, no. 1 (July 23, 2018): 7–11. http://dx.doi.org/10.21157/ijtvbr.v3i1.11339.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

This study aims to Determine the success rate of the Artificial Insemination in North Kayong Regency of West Kalimantan Province roomates has been done by IB officers. Artificial insemination is the process of introduction or delivery of cement into the genitals of female cows by means of made devices. North Kayong districts Regency is one of the which is administratively established Republic of Indonesia based on Law no. 6 of 2007 is an area that is developing cattle. The location that Became the focus of the evaluation of the success of Artificial Insemination is in three districts of Maya Island district, Sukadana and Seponti. Data used in this research is secondary Data Obtained from inseminator. The parameters used in this evaluation are the Non Return Rate (NRR), Service per Conception (S / C) and Calving Rate (CvR). The results Showed that the average of the three sub-districts in North Kayong district was for the highest 90% NRR in Sukadana district and the Lowest score of 67% in the Mayan Island district. S / C Obtained the highest number of 3.4 in Maya Island district and the Lowest S / C number district of Seponti 1.8. The highest score was 92% CvR in Sukadana district and the cancel CvR score was 64% in the Mayan Island district. The Conclusions Obtained based on the value of NRR, S / C, and CvR on artificial insemination evaluation with the best artificial insemination implementation are Sukadana district, followed by district of Seponti and last is Maya Island district.

36

Mahalubi, Rico I., A. K. Rintjap, J. A. Malingkas, and F. S. G. Oley. "RESPON PETERNAK SAPI POTONG TERHADAP PENERAPAN TEKNOLOGI INSEMINASI BUATAN (IB) DI DESA TONDEGESAN DUA KECAMATAN KAWANGKOAN KABUPATEN MINAHASA." ZOOTEC 39, no. 1 (January 16, 2019): 71. http://dx.doi.org/10.35792/zot.39.1.2019.22557.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

ABSTRACTCATTLE FARMERS’S RESPONSE ON APPLICATION OF ARTIFICIAL INSEMINATION (AI) TEGNOLOGY IN TONDEGESAN VILLAGE KAWANGKOAN DISTRICT, MINAHASA REGENCY. The government encourages the cattle farming industry through science and technology to increase the productivity of livestock businesses in order to be able to increase the livestock population. The objective of this study was to determine the farmer's response to the adoption of artificial insemination technology (IB) at the village of Tondegesan Dua, Kawangkoan District, Minahasa Regency and to evaluate their knowledge on artificial insemination motivation and technology adoption (IB) in Tondegesan two Village, Kawangkoan District, Minahasa Regency. Data sources were based on primary and secondary data. Data collection were conducted by observation and interview method. The farmer population were involving 42 farmers following artificial insemination and not following artificial insemination activities, but they were aware of artificial insemination technology. The number of samples taken were 30 farmers. Determination of the sample was purposively taken at the village of Tondegesan Dua. The measurement of the research indicator was carried out by applying a Likert scale. Test was done on the relationship between the variables of farmer response to artificial insemination. The results showed that the farmer's responses to artificial insemination were in a fairly good category based on the results of the study. It can be concluded that the farmer's response to the artificial insemination was quite good. Keywords: Farmer motivation, artificial Insemination technology, Tondegesan Dua village.

37

Garcia, M., W. Huanca, and L. Echevarria. "Reproductive performance of purebred and crossbred Zebu cattle under artificial insemination in the Amazon tropics." Animal Science 50, no. 1 (February 1990): 41–49. http://dx.doi.org/10.1017/s0003356100004451.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

ABSTRACTBreeding data from 1543 artificial inseminations, performed on 763 purebred and crossbred zebu cattle reared on 73 small farms, in the Amazon basin of Peru from 1980 to 1986, were evaluated. Inseminations were performed during morning hours using Holstein or Brown Swiss frozen semen. The calving to first oestrus and calving to conception intervals, number of services per conception, intervals between services and conception rate were evaluated. A total of 64-4% of first services and 61-4% of conceptions occurred between the middle of the dry season and the middle of the rainy season. Farm effect proved to be the most important source of variation for all reproductive traits. Other important factors influencing the interval from parturition to first service were breed of cow, parity and season of service. Parity influenced the interval from parturition to conception while parity, time of oestrous detection and inseminator influenced conception rate. The long post-partum anoestrous interval was found to be the most important factor limiting reproductive efficiency on small farms involved in the artificial insemination programme. The reproductive performance of the crossbred cattle tended to be better than that of the purebred zebu cattle.

38

Palacios, Carlos, José A. Abecia, Javier Plaza, Cristina Hidalgo, and Luis F. de la Fuente. "Efficiency of Artificial Insemination at Natural Estrus in Organic Churra Ewes." Veterinary Sciences 9, no. 7 (July 18, 2022): 370. http://dx.doi.org/10.3390/vetsci9070370.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Hormonal treatments used in the artificial insemination (AI) of sheep can cause several physiological problems that can affect negatively fertility and animal health; however, AI protocols based on the detection of natural estrus offer a more sustainable option and can achieve high fertility. In this study, an AI protocol at natural estrus in organic Churra sheep was performed. In the first phase (AI protocol development), 125 ewes were exocervically inseminated, and their fertility was assessed based on the following factors: number of AI, physiological state, body condition, estrus detection–AI interval, and vaginal fluids in cervix. That protocol was repeated for six consecutive years. In all individuals, fertilities based on the timing of insemination after estrus detection were very high. Lactating ewes produced better results than did dry ewes, which was probably because of the better feeding of the former. In addition, double insemination increased the fertility of ewes whose estrus was detected within 16 h of onset. Body condition and amount of vaginal fluid were correlated with fertility. Exocervical inseminations at natural estrus can produce acceptable fertility and prolificity in Churra ewes.

39

Suprianto, Suprianto, and Dedi Djuliansah. "KAJIAN APLIKASI TEKNOLOGI INSEMINASI BUATAN DALAM UPAYA PENINGKATAN PRODUKTIVITAS DAN PENDAPATAN USAHA TERNAK SAPI POTONG DI KABUPATEN TASIKMALAYA." MIMBAR AGRIBISNIS: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis 1, no. 3 (August 20, 2018): 211. http://dx.doi.org/10.25157/ma.v1i3.41.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The aims of this research are to know: level of productivity and income of cow farmers by artificial insemination, and natural farmer; in Tasikmalaya. Survey was the method used. There were 15 farmer as sampling unit of The Insemination Farmer and 17 the natural farmer. The result of the research can be concluded that: The produkductivity of artificial insemination farmer more than the productivity of natural farmer; both of the farmers were on equal fragnant productivity. It were one baby cow for one time of the fragnan. But the artificial insemination farmer have short interval. On 23 Th months the artificial insemination farmers have two times fragnant; the growth rate of the artificial insemination cow was faster then the growth rate of the natural cow. The baby cow by artificial insemination reach 105-110 kg on 4 Th months, but the natural were only 65-75 kg on 6-8 Th months. Net income of artificial insemination farmers were 5,65 percents on the total investments, while the natural farmer were 3,44 percent per month.

40

Gáspárdy, András, Eszter Renkó, Bence Somoskői, András Bába, and Sándor Cseh. "Practical experience with artificial insemination (AI) using fresh chilled and frozen semen in mares." Acta Veterinaria Hungarica 68, no. 1 (March 2020): 85–90. http://dx.doi.org/10.1556/004.2020.00007.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

AbstractThe objective of this study was to compare the efficiency of artificial insemination (AI) carried out with frozen and fresh, diluted and chilled semen under field conditions. One hundred and twenty-nine mares of different breeds were included in the study. Eighty-one out of the 107 mares inseminated with fresh, chilled semen got pregnant. Seven pregnant mares aborted and 74 foals were born. Out of the 22 mares inseminated with frozen semen, 17 mares got pregnant. Two mares out of the 17 pregnant mares aborted and finally 15 healthy foals were born. No difference was found between the two groups in the ratio of the foals born (P > 0.05). The comparison of medians for the number of insemination cycles did not show significant differences. However, a significant difference (Kruskal–Wallis test, P = 0.014) was found in the number of the inseminations per conception in favour of frozen semen (2.5 vs. 1.8 with fresh chilled and frozen semen, respectively). The Cox regression revealed that the type of semen has a significant impact (P < 0.001) on the service period (duration of the insemination period): the use of frozen semen prolonged the insemination period. This could be due to management issues, since re-insemination with frozen semen took place after only one/a few missed oestrous cycles not used for AI.

41

Dunne, John. "The efficiency of artificial insemination in pigs : lessons from australian research." Proceedings of the British Society of Animal Production (1972) 1992 (March 1992): 58. http://dx.doi.org/10.1017/s0308229600021760.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Recent years have seen a small but consistent growth in the use of AI on commercial pig farms in Britain. Currently about 12 percent of all matings are artificial and 25 percent or more of farms are using some AI.(6) This figure still falls well short of our continental neighbours, with Denmark and the Netherlands inseminating 50 percent of their sows. The conception rate and litter size achievable with AI (6) can at least equal results from natural matings. However, it is recognised that some people achieve far superior fertility results to others when using AI. Part of this is due to different genotypes employed (e.g. purebreds vs crossbreds), different production systems and management practices imposed. It is most likely, however, that an unquantified but substantial part of the reason for such big differences between farms in fertility following AI is due to differing abilities of stockpeople performing the inseminations. “Ability’ refers not only to the actual insemination technique, which is straightforward and can be quickly learned, but to their general ability to recognise behavioural changes in their stock, to interact with their stock and generally get the best out of their stock i.e. their level of stockmanship skills.

42

Khaled Taïbi, Mohamed Achir,, Leila Ait Abderrahim, Mohamed Boussaid, Kada Souana, Abdelkader Tadj, Toufik Benaissa, and Tayeb Gouchich. "Dissecting the relationship between artificial insemination success and bull semen quality in the arid region of Tiaret (Algeria)." Bionatura 7, no. 1 (February 15, 2022): 1–5. http://dx.doi.org/10.21931/rb/2022.07.01.18.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Despite being subject to prior assortment, frozen bull sperms commercialized for artificial insemination may present certain morphological defects. The present study aims (i) to assess the artificial insemination success of the most common cattle breeds in Algeria and (ii) to evaluate the possible effects of commercialized bull’s semen quality on this operation. Artificial insemination was assessed through four years of field monitoring by inseminating different cattle breeds of normal fertility. However, semen quality was evaluated using light microscopy by measuring viability, motility, and morphological abnormalities of spermatozoa. Field study revealed a high percentage of normal calving in red and white Holstein breed (44.83 %) against the high percentage of embryonic mortality (46.43 %) and calving with a malformation (10.71 %) in Montbéliarde breed. Semen quality assessment revealed that sperm viability and motility were higher in Holstein breeds than in Montbéliarde. Furthermore, significant differences between semen bulls were found in the proportion of abnormal spermatozoa; a higher rate of sperms with the abnormal head was observed in the black and white Holstein breed (69.3±10.98 %). However, the percentage of abnormal sperms with tail defects was higher in the Montbéliarde breed (67.5±10.74 %). The lousy quality of the selected semen and/or the poor handling and storage of frozen semen constitute a determinant factor that hinders the success of artificial insemination in the arid region of Tiaret (Algeria).

43

Critser, John K., and Jeanne V. Linden. "Therapeutic insemination by donor I: A review of its efficacy." Reproductive Medicine Review 4, no. 1 (March 1995): 9–17. http://dx.doi.org/10.1017/s0962279900001022.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Of all the assisted reproductive technologies in current use, artificial insemination has by far the longest history. While the earliest verifiable reports using this technique date to the eighteenth century for nonhuman artificial insemination and to the nineteenth century for human artificial insemination, systematic use of this approach to assist reproduction did not occur until the early part of this century. During the early 1900s, in Russia, Ivanov developed methods for semen collection from and insemination of horses. These techniques were later modified to apply to other agriculturally important species so that by the 1930s, millions of horses, cattle and sheep were being bred using artificial insemination. The adaptation of widespread use of artificial insemination (primarily in cattle) in agriculture extended to Britain in the early 1940s and to the USA in the 1950s. Corresponding implementation of artificial insemination in human reproductive medicine closely followed these innovations in the animal husbandry field.

44

Putri, Cristy Dwi, Ismudiono, and Emmanuel Djoko Poetranto. "The Effect of the Different Artificial Insemination Time Periods on the Pregnancy Rate of Sapudi Ewes." World's Veterinary Journal 11, no. 3 (September 25, 2021): 469–73. http://dx.doi.org/10.54203/scil.2021.wvj60.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Brucellosis Artificial insemination is required to increase the reproduction rate in ruminant breeding. The artificial insemination success rate in sheep only reaches 47.6%, whereas the proposed ideal rate is 70%. One of the factors influencing the artificial insemination success rates in sheep is improper estrus detection, resulting in no fertilization. The present study aimed to determine the effect of different artificial insemination time periods on the pregnancy rates of Sapudi ewes. The research design was based on a completely randomized design. A total of 20 female Sapudi sheep were divided into four treatment groups with five repetitions (for each group). In addition, the observed variables were artificial insemination time in Sapudi ewes. Estrus synchronization in ewes was conducted by injecting PGF2α. The results of the research indicated that ewes subjected to artificial insemination 6, 12, 18, and 24 hours after estrus had a pregnancy rate of 20%, 100%, 60%, and, 60%, respectively. It can be concluded that the time differences in artificial insemination significantly influence the pregnancy rate in Sapudi ewes’.

45

Yousuf, Mohammed. "Challenges and Opportunities of Artificial Insemination on Dairy Cattle in Ethiopia." Research Horizon 1, no. 2 (April 30, 2021): 47–54. http://dx.doi.org/10.54518/rh.1.2.2021.47-54.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Artificial insemination is very important for genetic improvement, especially in dairy cattle breeds. It has problems in meeting the needs of some producers, not its opportunities. The objective of this study was the challenge and opportunity of artificial insemination on dairy cattle in the case of Sayo district, west Wollega Zone, Ethiopia. The problem of not using Artificial insemination is not limited to the region, and there are also dairy farmers in our district who have not practiced the service due to various challenges. In addition, most of the Artificial insemination services reported by the dairy industry have failed, rather than bull services. However, although there are few attempts to quantify opportunities, constraints, and why producers do not use artificial insemination services in other regions, researchers have not disclosed well-documented data on the challenges and opportunities of artificial insemination services in the Sayo region. The Result is Artificial insemination has played an important role in increasing milk production in the study area because the crossbreed that got good traits from exotic breeds gave high milk than local breed.

46

Canto Souza, Ana Clara, Gabrieli Dutra Gonçalves, Andrey Osvaldo Souza Ferro, Deborah Nakayama Yokomizo, Denis Vinicius Bonato, and Marcelo Marcondes Seneda. "STRATEGIES TO INCREASE FERTILITY DURING FIXED-TIME ARTIFICIAL INSEMINATION IN BEEF CATTLE." SPERMOVA 11, no. 2 (December 31, 2021): 73–82. http://dx.doi.org/10.18548/aspe/0009.11.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The application of Fixed Time Artificial Insemination (FTAI) protocols has strongly boosted artificial insemination in Brazilian bovine herds. The control of the estrous cycle with protocols based on progesterone and estrogen involves synchronizing the emergence of a follicular wave, controlling the progesterone phase, and inducing ovulation in a synchronized manner. The increase in pregnancy rates starts with the preparation of the breeding season and the choice of protocols and females. Thereafter, based on the characteristics of the property and the lots of animals, small adjustments can be made to the hormonal protocols as needed. Finally, resynchronization can increase usability by allowing multiple inseminations within short periods. The search for new strategies is of paramount importance for the development of the FTAI protocol and the increase in final pregnancy rates. Thus, this review sought to highlight the main critical points and adjustments of the FTAI protocols and their applicability in the reproduction of beef cattle.

47

TSAKMAKIDIS, IA, ED TZIKA, and AG LYMBEROPOULOS. "Swine artificial insemination: development and biotechnology applications." Journal of the Hellenic Veterinary Medical Society 61, no. 4 (March 22, 2018): 330. http://dx.doi.org/10.12681/jhvms.14906.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Traditional artificial insemination has been highly contributed in swine global industry development. However, in order to improve the productivity and the reproductive performance of pig farms, new techniques have been performed. Among them, post cervical or intrauterine insemination, deep intrauterine insemination (DUI), intra-oviductal insemination (ΙΟΙ) by laparotomy or laparoscopy, as well as the biotechnological applications, such as sex sorted semen, frozen semen and sperm mediated genes' transfer, have been investigated concerning their efficiency in pig production development. One of the main targets of the aforementioned techniques is to benefit the potential advantages of the high genetic value boars by using the minimal number of spermatozoa needed to achieve a high fertilization rate following artificial insemination. On the other hand, biotechnology could lead in rapid transfer of high genetic potential in inaccessible areas through frozen semen. Moreover, biotechnology could support pig industry increasing the female pigs' production according to the consumers' choices and animals' welfare by sex sorted semen application, as well as producing of transgenic pigs aiming an increased disease resistance, improvement carcass composition, increased feed intake and growth rate. In vivo studies have evaluated the efficiency of the new developments in insemination technology. The results of these studies demonstrated that a satisfactory conception rate and litter size can be obtained by the insemination of low number of spermatozoa in the appropriate position of the female genital tract at the right time, close to ovulation. High farrowing rate and number of live born piglets were noticed after the post cervical insemination with low number of spermatozoa (lxlO9), compared to the traditional artificial insemination. Similar results were observed in other experiments, where 150xl06 or 3xl05 spermatozoa were inseminated using DUI or ΙΟΙtechnique, respectively. Furthermore, the improvement of the materials of the new artificial insemination procedures (catheters, extenders etc) makes the application of it simpler and easier for the workers after a few training. Although the traditional artificial insemination is an indispensable method for the commercial pig farms, the application of currently available sperm technologies is feasible to be performed in selected animals of pig farms with high quality control and management system. The aspects of the development on swine artificial insemination technology concerning the biotechnological applications of boar sperm are reported in the present study.

48

Siboro, Mey Anisa Apulina, Abdul Mukti, and Yuni Erlina. "PERSEPSI PETERNAK TERHADAP PELAKSANAAN INSEMINASI BUATAN (IB) PADA SAPI POTONG DI KELURAHAN KALAMPANGAN KECAMATAN SABANGAU KOTA PALANGKA RAYA." JOURNAL SOCIO ECONOMICS AGRICULTURAL 16, no. 2 (January 25, 2022): 103–14. http://dx.doi.org/10.52850/jsea.v16i2.4017.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

ABSTRAK Tujuan dari penelitian ini adalah: 1). Mendeskripsikan keadaan pelaksanaan kegiatan Inseminasi Buatan (IB) pada Sapi Potong di Kelurahan Kalampangan, Kecamatan Sabangau, Kota Palangka Raya; 2). Menganalisis persepsi peternak terhadap kegiatan Inseminasi Buatan (IB) pada Sapi Potong di Kelurahan Kalampangan, Kecamatan Sabangau, Kota Palangka Raya. Penelitian ini dilaksanakan di Kelurahan Kalampangan pada peternak pelaksana inseminasi buatan (IB) dan peternak non pelaksana inseminasi butaan (IB). Metode yang digunakan untuk menjawab tujuan pertama yaitu menggunakan metode deskriptif melalui wawancara sedangkan untuk menjawab tujuan kedua yaitu dengan metode kuantitatif menggunakan skala likert. Berdasarkan hasil penelitian diketahui pelaksanaan inseminasi buatan pada peternak pelaksana inseminasi buatan dan peternak yang sudah tidak melaksanakan inseminasi buatan lagi di Kelurahan Kalampangan kurang lebih sama, mulai dari pelaksanaan dan pemeliharaan, proses pelaporan birahi, perilaku pakan, jenis gangguan reproduksi ternak yang pernah terjadi, dan biaya inseminasi buatan (IB). Persepsi peternak terhadap inseminasi buatan (IB) dengan indikator pelaksanaan dan pemeliharaan pada Inseminasi Buatan (IB), penggunanaan semen beku pada Inseminasi Buatan (IB), dan perilaku pakan yang dilaksanakan untuk kegiatan Inseminasi Buatan (IB). Respon peternak pelaksana inseminasi buatan (IB) mendapat skor 1659 (Sangat Baik) dan peternak non pelaksana inseminasi buatan (IB) mendapat skor 1281 (Tidak Baik) Kata Kunci: Persepsi, Kognitif, Afektif, Konatif, Inseminasi Buatan (IB) ABSTRACT The objectives of this study are: 1). Describe the state of the implementation of Artificial Insemination (IB) activities on Beef Cows in Kalampangan Village, Sabangau District, Palangka Raya City; 2). Analyzing the perceptions of farmers to Artificial Insemination (IB) activities in Beef Cattle in Kalampangan Village, Sabangau District, Palangka Raya City. This research was conducted in Kalampangan Village on breeders who implement artificial insemination (IB) and breeders who do not implement blind insemination (IB). The method used to answer the first objective is to use a descriptive method through interviews, while to answer the second objective is to use a quantitative method using a Likert scale. Based on the results of the research, it is known that the implementation of artificial insemination in breeders implementing artificial insemination and breeders who are no longer implementing artificial insemination in Kalampangan Village is more or less the same, starting from implementation and maintenance, the process of reporting lust, feed behavior, types of livestock reproductive disorders that have occurred, and artificial insemination cost (IB). Breeder perceptions to artificial insemination (IB) with implementation and maintenance indicators on Artificial Insemination (IB), use of frozen semen in Artificial Insemination (IB), and feed behavior carried out for Artificial Insemination (IB) activities. The response of farmers implementing artificial insemination (IB) got a score of 1659 (Very Good) and farmers who did not implement artificial insemination (IB) got a score of 1281 (Not Good). Keywords: Perceptions, Cognitive Affective, Conative, Artificial Insemination (IB)

49

Ramadhan, Y. F., A. T. Warman, H. Maulana, and E. Baliarti. "The primipara reproductive performance of Bali cows with natural mating compared to artificial insemination." IOP Conference Series: Earth and Environmental Science 1114, no. 1 (December 1, 2022): 012058. http://dx.doi.org/10.1088/1755-1315/1114/1/012058.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Abstract This study was conducted to observe Bali cows’ primipara reproductive performance between natural mating and artificial insemination. Fifty Bali cows owned by 44 farmers in Central Lombok Regency, West Nusa Tenggara Province, were used as the research sample at the first mating; 19 cows were subjected to natural mating (NM) and 31 cows to artificial insemination (AI). Farmer’s profile data, rearing system, and reproductive performance (the age of puberty, the first mating, gestation period, postpartum estrus, postpartum mating, and calving interval) were obtained from the farmer’s interview and inseminator record. An independent sample t-test was performed to analyze the differences in reproductive performance between NM and AI groups. The results showed that there were significant differences (P<0.05) in postpartum estrus (48.94 ± 12.75 vs. 82.74 ± 26.51 days), postpartum mating (59.00 ± 14.00 vs. 85.64 ± 25.45 days), and calving interval (348.57 ± 18.20 vs. 393.19 ± 31.05 days). In conclusion, Bali cows’ reproductive performance in primipara with natural mating is better than artificial insemination. So recommended that for the first mating, it is better to have a natural mating.

50

Huber, Desiree, Evelyne Amsler, Beatriz Vidondo, Rebekka Kaeser, Bettina Wespi, Harald Sieme, and Dominik Burger. "Increase of pregnancy rate after multiple periovulatory inseminations in mares." Tierärztliche Praxis Ausgabe G: Großtiere / Nutztiere 47, no. 01 (February 2019): 18–24. http://dx.doi.org/10.1055/a-0803-1211.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Abstract Objective There exist differences in the reproductive behavior of stallions and mares under free-running and domestic in-hand breeding conditions. Contrary to artificial insemination programs, a stallion mates a mare multiple times per estrus under natural conditions. The objective of this study was to determine if multiple periovulatory artificial inseminations (MI), four times in two different time intervals instead of two, would result in increased pregnancy outcome or higher incidences of breeding induced endometritis. Material and methods Eighty-two estrous mares were allocated randomly to one of three experimental groups. They were administered intramuscular deslorelin (1.25 mg) to induce ovulation, and 24 hours later, they were inseminated either twice (group DI), four times in relatively short intervals (group MISI) or four times in relatively long intervals (MILI), after division of one commercial insemination dose (either frozen-thawed or chilled-warmed semen) into two or four portions, respectively. Uterine sampling for bacteriological and cytological analysis was conducted directly before the first insemination and 24 hours after the last insemination. Results Mares of the MI groups showed a higher pregnancy rate with frozen-thawed semen than mares of the DI group. There was no difference in bacteriological and cytological results between the three groups. In addition, mares of the MISI group showed less intrauterine fluid accumulation 24 hours after the last insemination than mares of the DI and MILI groups. Conclusion and clinical relevance We suggest that multiple periovulatory inseminations with frozen-thawed semen in a close time frame to ovulation lead to an increase of pregnancy results per cycle, and that they do not lead to impaired inflammatory reactions of the uterus in healthy fertile mares.