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Journal articles on the topic 'Semen quality'

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Author: Grafiati

Published: 4 June 2021

Last updated: 25 January 2023

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1

Snoj, Tomaz. "Bull semen quality parameters and impact of exogenous factors on semen quality." Veterinarski glasnik 68, no. 3-4 (2014): 229–39. http://dx.doi.org/10.2298/vetgl1404229s.

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Use of quality sires in the artificial insemination of cattle leads to the increased production in cattle breeding. In EU countries and the countries which cooperate in semen trade with EU countries bulls? health status and minimal criteria for semen quality are regulated by law. Bull semen quality is influenced by several exogenous factors. Semen quality parameters are influenced by season. The highest values of ejaculate volume and total sperm output were found during the summer, while the lowest values were found in winter period. Some xenobiotics can also affect semen parameters. Correlation between semen quality and pesticide use in limited geographic area was found, namely bull semen quality decreased in the period when pesticide use increased.

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2

Johnson, Dustie, and Samuel D. Prien. "New semen collection technique/container improves semen quality." Fertility and Sterility 80 (September 2003): 30. http://dx.doi.org/10.1016/s0015-0282(03)01879-x.

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3

Toft, Gunnar, Henning Sloth Pedersen, Jens Peter Bonde, and Inuendo Research team. "Semen quality in Greenland." International Journal of Circumpolar Health 63, sup2 (September 2004): 174–78. http://dx.doi.org/10.3402/ijch.v63i0.17894.

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4

Schlegel, Peter N. "Depression and semen quality." Fertility and Sterility 117, no. 1 (January 2022): 95. http://dx.doi.org/10.1016/j.fertnstert.2021.10.019.

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5

Tummon, I. S., and D. Mortimer. "Decreasing quality of semen." BMJ 305, no. 6863 (November 14, 1992): 1228–29. http://dx.doi.org/10.1136/bmj.305.6863.1228-c.

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6

Ginsburg, J., and P. Hardiman. "Decreasing quality of semen." BMJ 305, no. 6863 (November 14, 1992): 1229. http://dx.doi.org/10.1136/bmj.305.6863.1229.

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7

Brake, A., and W. Krause. "Decreasing quality of semen." BMJ 305, no. 6867 (December 12, 1992): 1498. http://dx.doi.org/10.1136/bmj.305.6867.1498-b.

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8

Carlsen, E., A. Giwercman, N. E. Skakkabaek, and N. Keiding. "Decreasing quality of semen." BMJ 306, no. 6875 (February 13, 1993): 461. http://dx.doi.org/10.1136/bmj.306.6875.461-b.

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9

Hauser, Russ, L. Altshul, J. Carlson, I. Schiff, Z. Chen, and D. C. Christiani. "SEMEN QUALITY AND PCBs." Epidemiology 9, Supplement (July 1998): S55. http://dx.doi.org/10.1097/00001648-199807001-00138.

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10

Banihani, Saleem A. "Omeprazole and Semen Quality." Basic & Clinical Pharmacology & Toxicology 118, no. 3 (December 28, 2015): 181–83. http://dx.doi.org/10.1111/bcpt.12529.

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11

Foresta, Carlo, Marco Rossata, Alberto Ferlin, and Andrea Garolla. "Semen quality and fertility." Lancet 352, no. 9143 (December 1998): 1861–62. http://dx.doi.org/10.1016/s0140-6736(05)79933-5.

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12

Toppari, J. "Is semen quality declining?" Andrologia 28, no. 6 (April 27, 2009): 307–8. http://dx.doi.org/10.1111/j.1439-0272.1996.tb02806.x.

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13

Sengupta, Pallav, and Sulagna Dutta. "Thyroid Disorders and Semen Quality." Biomedical and Pharmacology Journal 11, no. 1 (March 25, 2018): 01–10. http://dx.doi.org/10.13005/bpj/1342.

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Thyroid hormones and their impacts on male reproduction have been reported in numerous studies in past few decades. They are the crucial players in the regulation of male gonadal developments and reproductive functions. An excess or deficit of thyroid hormones not only alter the testicular functions but also interrupts neuroendocrine axis through the crosstalk between hypothalamic-pituitary-thyroid (HPT) axis and hypothalamic-pituitary-gonadal (HPG) axis. These changes result in decreased testosterone level and altered seminal plasma components which affect semen quality. The reports on the direct effects of thyroid disorders on semen quality are scanty. Thus, this review scrutinizes the available literature and aims to elucidate (a) the normal thyroidal regulations of semen parameters, (b) effects of hypothyroidism on semen quality (c) effects of hyperthyroidism on semen quality, and (d) the possible mechanism of action of thyroid dysfunctions on the alterations of semen quality. This review also highlights the limitations of the studies carried out so far and accentuates the necessity of large-scale human studies and animal studies specifically focusing on the molecular events of thyroid disorder-induced alterations in semen quality.

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14

Klein, J. P., M. Mold, L. Mery, M. Cottier, and C. Exley. "Aluminum content of human semen: Implications for semen quality." Reproductive Toxicology 50 (December 2014): 43–48. http://dx.doi.org/10.1016/j.reprotox.2014.10.001.

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15

Sharma, R. K., D. R. Nelson, A. J. Thomas, and A. Agarwal. "New semen scores are effective measures of semen quality." Fertility and Sterility 76, no. 3 (September 2001): S115. http://dx.doi.org/10.1016/s0015-0282(01)02337-8.

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16

., P. R. Dumpala, H. M. Parker ., and C. D. McDaniel . "The Sperm Quality Index from Fresh Semen Predicts Chicken Semen Quality after Storage." International Journal of Poultry Science 5, no. 9 (August 15, 2006): 850–55. http://dx.doi.org/10.3923/ijps.2006.850.855.

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17

S, Lazić. "Boar Quality Semen Testing and Presence of Mycoplasma Organism." Open Access Journal of Veterinary Science & Research 2, no. 3 (2017): 1–9. http://dx.doi.org/10.23880/oajvsr-16000137.

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This paper describes results of mycoplasma organism and Mycoplasma hyopneumoniae detection in semen of boars. During routine examination of semen quality in 2015 and 2016, different percent of specific changes in the spermatozoa of 23 b oars were observed and these samples were subjected to mycoplasma detection. The se changes were manifested as frequent distal midpiece reflex abnormalities with sporadic coiled principal piece; but booth loops were filed with fine, net like /reticular form s ( “ entrapped pseudocytoplasmatic droplet ” ). Based on the observed morphological forms i t is suspected on the presence and influence of microorganisms, primarily of Mycoplasma origin . PCR and real time PCR molecular methods were examined in all suspected s perm samples. The presence of Mycoplasma spp was found in 15 samples, of which, Mycoplasma hyopneumoniae was found in 8 samples. In the remaining seven samples differentiation to other mycoplasma species were not carried out . This article is indicating t hat genital form of mycoplasma could manifest its effect on semen quality and this may be more significant than current literature data are indicating and recogniz ing as problem in boars. In the same time, i ts high incidence in suspected semen samples coul d be more stressed as a source of sexually transmitted infection. Further estimation of Mycoplasma influence on boar semen quality is needed.

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18

Ratchamak, R., T. Vongpralub, W. Boonkum, and V. Chankitisakul. "Cryopreservation and quality assessment of boar semen collected from bulk samples." Veterinární Medicína 64, No. 5 (May 28, 2019): 209–16. http://dx.doi.org/10.17221/125/2018-vetmed.

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The purpose of this study was to examine sperm quality after cryopreservation of ejaculates collected as a bulk sample, which is routinely part of semen collection, and to compare this quality with the sperm-rich fraction in boars. Ejaculates were collected as sperm-rich fractions (SRF) and bulk samples (BE) using a gloved-hand technique. Fresh semen quality in terms of semen volume, sperm concentration, total sperm motility and pH were conventionally evaluated. Then, semen was cryopreserved using the liquid nitrogen vapour method. The post-thaw sperm quality was evaluated by assessing sperm motility, live sperm with normal apical ridge and high mitochondrial energy status, lipid peroxidation was evaluated using CASA and fluorescent multiple staining and MDA levels were determined using a spectrophotometer, respectively. In terms of fresh semen quality, sperm motility in fresh semen did not differ significantly between the two groups. The treatment with the greater mean volume (BE; P < 0.05) had a lower mean sperm concentration (P < 0.05); meanwhile, the mean ejaculate pH collected as BE was more basic compared with SRF (P < 0.05). However, there were no significant post-thaw quality changes between sperm-rich fractions and bulk samples of semen. In conclusion, ejaculates can be collected as bulk samples without the need to classify fractions for boar semen cryopreservation.

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19

&NA;. "Drugs up, semen quality down." Inpharma Weekly &NA;, no. 940 (June 1994): 20. http://dx.doi.org/10.2165/00128413-199409400-00042.

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20

Bronson, Richard. "Pesticide residues and semen quality." Human Reproduction 30, no. 9 (July 2, 2015): 2241.1–2241. http://dx.doi.org/10.1093/humrep/dev164.

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21

Banihani, Saleem Ali. "Vitamin B12 and Semen Quality." Biomolecules 7, no. 4 (June 9, 2017): 42. http://dx.doi.org/10.3390/biom7020042.

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22

IWAMOTO, TERUAKI, SHIARI NOZAWA, and MIKI YOSHIIKE. "Semen quality of Asian men." Reproductive Medicine and Biology 6, no. 4 (November 7, 2007): 185–93. http://dx.doi.org/10.1111/j.1447-0578.2007.00184.x.

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23

Ombelet, Willem, Karen Deblaere, Eugene Bosmans, Annemie Cox, Petra Jacobs, Mia Janssen, and Martine Nijs. "Semen quality and intrauterine insemination." Reproductive BioMedicine Online 7, no. 4 (January 2003): 485–92. http://dx.doi.org/10.1016/s1472-6483(10)61894-9.

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24

La Vignera, Sandro, and Roberto Vita. "Thyroid dysfunction and semen quality." International Journal of Immunopathology and Pharmacology 32 (January 1, 2018): 205873841877524. http://dx.doi.org/10.1177/2058738418775241.

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Thyroid hormones act on testis in multiple ways and exert their effect on different cell types, including Leydig and Sertoli cells, and germ cells. An excess or deficit of thyroid hormones results in alterations of testis function, including semen abnormalities. More frequently, hyperthyroidism has been associated with reduced semen volume and reduced sperm density, motility, and morphology, whereas hypothyroidism is associated with reduced sperm morphology. Therefore, thyroid function tests should be part of the diagnostic workup of the infertile man. This article is aimed at (1) elucidating how hyperthyroidism and hypothyroidism lead to a reduction in semen quality, briefly reviewing the current literature on murine models and humans, and (2) pinpointing the limitations of the studies carried out so far and identifying new perspectives for future research.

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25

Khan, R. U. "Antioxidants and poultry semen quality." World's Poultry Science Journal 67, no. 2 (June 1, 2011): 297–308. http://dx.doi.org/10.1017/s0043933911000316.

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26

Vine, Marilyn F., Chiu-Kit J. Tse, Ping-Chuan Hu, and K. Young Truong. "Cigarette smoking and semen quality." Fertility and Sterility 65, no. 4 (April 1996): 835–42. http://dx.doi.org/10.1016/s0015-0282(16)58223-5.

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27

Suominen, J., and M. Vierula. "Semen quality of Finnish men." BMJ 306, no. 6892 (June 12, 1993): 1579. http://dx.doi.org/10.1136/bmj.306.6892.1579.

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28

Sanocka-Maciejewska, D., M. Ciupińska, and M. Kurpisz. "Bacterial infection and semen quality." Journal of Reproductive Immunology 67, no. 1-2 (October 2005): 51–56. http://dx.doi.org/10.1016/j.jri.2005.06.003.

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29

Wysokińska, Anna. "Animal Reproduction: Semen Quality Assessment." Animals 12, no. 21 (October 23, 2022): 2905. http://dx.doi.org/10.3390/ani12212905.

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30

Revathy, M. M., R. S. Abhilash, C. Jayakumar, P. K. Magnus, K. Raji, and J. James. "Relationship between Season and Semen Quality in Crossbred Bull Semen." International Journal of Current Microbiology and Applied Sciences 8, no. 08 (August 10, 2019): 2480–84. http://dx.doi.org/10.20546/ijcmas.2019.808.288.

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31

Damirayakhian, M., R. S. Jeyendran, and S. A. Land. "SIGNIFICANCE OF SEMEN CULTURES FOR MEN WITH QUESTIONABLE SEMEN QUALITY." Archives of Andrology 52, no. 4 (January 2006): 239–42. http://dx.doi.org/10.1080/01485010600630132.

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32

Niederberger, Craig. "Re: Aluminum Content of Human Semen: Implications for Semen Quality." Journal of Urology 194, no. 5 (November 2015): 1369. http://dx.doi.org/10.1016/j.juro.2015.07.052.

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33

Iskandar, Hikmayani, Herry Sonjaya, Raden IIS Arifiantini, and Hasbi Hasbi. "Correlation between Semen Quality, Libido, and Testosterone Concentration in Bali Bulls." Jurnal Ilmu Ternak dan Veteriner 27, no. 2 (August 11, 2022): 57–64. http://dx.doi.org/10.14334/jitv.v27i2.2981.

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Indonesia has two National Artificial Insemination Centers (AIC) and more than 15 Regional Artificial Insemination Centers (RAIC) spread across several provinces. Bulls in the AIC must have a high libido and produce good quality semen. This study examines the correlation between libido with semen quality and testosterone concentration to determine potential frozen semen production from Bali bulls in South Sulawesi RAIC. Ten Bali bull were used in this study. Semen collection was carried out twice a week with semen evaluation following the RAIC protocol. At the same time, blood samples and libido measurements were carried out from each bull. The frozen semen production potential was calculated by multiplying the semen volume, motility, and sperm concentration. The results showed that the quality of fresh semen and testosterone concentrations did not differ between high and low libido of Bali bulls. Libido has a positive correlation with semen volume (r= 0.52) and sperm motility (r= 0.62), while testosterone concentration has a negative correlation with semen volume (r= -0.65), sperm motility (r= -0.60), and libido (r= -0.48). Bulls with high and low libido have good frozen semen production potential, ranging from 19,755 – 21,640 straws per year. Bali bulls in RAIC have fresh semen quality and testosterone concentrations under normal conditions, with high potential for frozen semen production, although only 60% of Bali cattle have high libido and 40% have low libido.

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34

BHAVE, K. G., THILAK PON JAWAHAR K, KUMARASAMY P, KUMARASAMY P, SIVAKUMAR T, JOSEPH C, V. SHENDE, A. KUNDALKAR, and VENKATARAMANAN R. "Semen quality and production potential of Indian buffalo breeds." Indian Journal of Animal Sciences 90, no. 11 (April 7, 2021): 1485–87. http://dx.doi.org/10.56093/ijans.v90i11.111495.

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The objective of the study was to evaluate non-genetic factors on semen traits. The overall means for the semen quality traits: ejaculate volume, sperm concentration, total sperm, mass activity, initial and post thaw motility, hypoosmotic swelling test, acrosome integrity of fresh and frozen test were 4.39±0.01 ml, 1.29±0.001 billion, 5.48±0.01 billion, 2.55±0.003, 73.41±0.0004%, 55.9±0.0002%, 59.01±0.001%, 84.98±0.002% and 71.13±0.002%, respectively. Breeds were found to differ in all the semen production and quality traits studied except acrosome integrity of fresh semen. Summer for semen production, and winter and monsoon for semen quality traits were comparatively better season. The quality traits improved with age and declined slightly in the later life.

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35

Galo, J. M., D. P. Streit-Junior, C. A. Oliveira, J. P. Povh, D. C. Fornari, M. Digmayer, and R. P. Ribeiro. "Quality of fresh and cryopreserved semen and their influence on the rates of fertilization, hatching and quality of the larvae of Piaractus mesopotamicus." Brazilian Journal of Biology 79, no. 3 (September 2019): 438–45. http://dx.doi.org/10.1590/1519-6984.182391.

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Abstract In this work, the seminal parameters of P. mesopotamicus were evaluated fresh and after cryopreservation, focusing on the sperm variables that affect the rates of fertilization, hatching and post-hatching parameters such as larval survival and morphology. The semen and oocytes from the animals were collected after extrusion, and seminal quality and oocyte fertilization were analyzed. Subsequently, a portion of each semen sample was cryopreserved and, after two days, the oocytes from three new females were fertilized with cryopreserved semen from the males. The analyzes showed that progressive motility, spermatic vigor, motility duration, number of normal sperm and secondary abnormalities were higher in fresh semen than in semen after thawing (P <0.0001). Similarly, fertilization and hatching rates and the percentage of normal and abnormal larvae in fertilized oocytes were higher when fresh semen was used (P <0.0001). The cryopreservation process affected the qualitative parameters of the semen of Piaractus mesopotamicus. The primary abnormality of spermatozoa was the main variable that influenced both fertilization and hatching rates, both in fresh and thawed semen. The second most important variable that influenced, particularly, thawed semen, was the spermatic vigor.

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36

Domain, Guillaume, Hiba Ali Hassan, Eline Wydooghe, Osvaldo Bogado Pascottini, Anders Johannisson, Jane M. Morrell, Wojciech Niżański, and Ann Van Soom. "Influence of Single Layer Centrifugation with Canicoll on Semen Freezability in Dogs." Animals 12, no. 6 (March 11, 2022): 714. http://dx.doi.org/10.3390/ani12060714.

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This study evaluated how semen selection by single layer centrifugation (SLC) with Canicoll affects semen freezability in dogs. A total of eighteen ejaculates, collected from dogs with optimal and suboptimal semen quality (optimal: normal morphology (NM) ≥ 80%, n = 9; suboptimal: NM between 60 and 79%, n = 9), were divided into two aliquots and subjected to standard centrifugation or SLC before cryopreservation. Motility, NM, membrane integrity, mitochondrial membrane potential (MMP), and DNA integrity were improved in fresh samples after SLC, regardless of semen quality, but at the expense of some good quality spermatozoa. After thawing, NM and membrane integrity were improved in SLC-selected semen in both semen qualities. Interestingly, MMP was also higher but only in optimal quality semen. Still, spermatozoa from suboptimal quality semen did not survive freezing to the same extent as spermatozoa from optimal quality semen, even after selecting superior spermatozoa. Semen selection with Canicoll is, therefore, an effective technique to isolate a subpopulation of high-quality spermatozoa and obtain sperm samples of better quality after thawing, but is not sufficient to improve the intrinsic inferior freezability of suboptimal quality semen. So far, eighteen pups were born after insemination with SLC-selected frozen-thawed semen, proving that these selected spermatozoa remain fertile.

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37

de Nie, I., A. Meißner, E. H. Kostelijk, A. T. Soufan, I. A. C. Voorn-de Warem, M. den Heijer, J. Huirne, and N. M. van Mello. "Impaired semen quality in trans women: prevalence and determinants." Human Reproduction 35, no. 7 (July 1, 2020): 1529–36. http://dx.doi.org/10.1093/humrep/deaa133.

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Abstract STUDY QUESTION What is the semen quality in trans women at time of fertility preservation, prior to the start of gender-affirming hormone treatment? SUMMARY ANSWER Before the start of gender-affirming hormone treatment, semen quality in trans women was already strongly decreased compared to the general population. WHAT IS KNOWN ALREADY Hormone treatment for -trans women (birth-assigned males, female gender identity) consists of anti-androgens combined with estrogens in order to achieve feminization and it is accompanied by a loss of reproductive capability. Trans women can opt for semen cryopreservation prior to their medical transition to retain the possibility to parent genetically related offspring. Post-thaw semen parameters determine which ART can be used. Knowledge of semen quality and the factors negatively influencing semen parameters in trans women are important to improve semen quality before fertility preservation. STUDY DESIGN, SIZE, DURATION A retrospective cohort study was performed between 1972 and 2017. In total, 260 trans women were included for this study. Due to the study design, there was no loss to follow-up or attrition. PARTICIPANTS/MATERIALS, SETTING, METHODS We studied the quality of the preserved semen in trans women, prior to their medical transition, who visited our gender clinic. Semen parameters were collected, as well as data on age, alcohol consumption, smoking, cannabis use, BMI, previous use of estrogens or anti-androgens and endocrine laboratory results. Semen parameters were categorized using reference values for human semen of the World Health Organization (WHO) and compared with data from the general population. Logistic regression analyses were performed to analyze the extent to which factors known to have a negative impact on semen quality in the general population explained the impaired semen quality in the cohort. MAIN RESULTS AND THE ROLE OF CHANCE The cohort consisted of 260 trans women between the age of 16 and 52 years. Semen quality in trans women was significantly decreased compared to WHO data from the general population. In total, 21 trans women had an azoospermia and median semen parameters for the remaining trans women and the general population, respectively, were as follows: volume 2.7 and 3.2 ml (P < 0.05), sperm concentration 40 and 64 million/ml (P < 0.05), total sperm number 103 and 196 million (P < 0.05) and progressive motility 41% and 57% (P < 0.05). Smoking (odds ratio (OR) 2.35 (95% CI 1.06–5.21)) and a higher age at time of fertility preservation (OR 1.04 (95% CI 1.00–1.08)) were found to correlate with an impaired progressive motility. Twelve trans women reported to have used anti-androgens and estrogens, and all had discontinued for at least 3 months prior to the first attempt for semen cryopreservation. No correlation was found between previous gender-affirming hormone use and decreased semen parameters. The median post-thaw total motile sperm count was 1.0 million per vial (interquartile range 0.1–3.1) and in only 26.4% of thawed semen samples was the quality adequate for a minimally invasive IUI. LIMITATIONS, REASONS FOR CAUTION Limitations include the retrospective design and insufficient data on transgender-specific factors, such as bringing the testes into the inguinal position (tucking), wearing tight underwear and low masturbation frequency. WIDER IMPLICATIONS OF THE FINDINGS Semen quality in trans women was decreased compared to the general population, which could not be explained by known risk factors, such as BMI, alcohol consumption, cannabis use, gender-affirming hormone use or abnormal endocrine laboratory results. Although a negative impact of smoking was observed, it was insufficient to explain the overall decreased semen quality in this cohort. Since low pre-freeze semen quality results in an even lower post-thaw semen quality, the majority of trans women and their female partner or surrogate may need an invasive and burdensome treatment to establish a pregnancy. STUDY FUNDING/COMPETING INTEREST(S) For this study, no external funding was obtained and there were no competing interests. TRIAL REGISTRATION NUMBER NA.

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38

Kilgallon, Sarah J., and Leigh W. Simmons. "Image content influences men's semen quality." Biology Letters 1, no. 3 (June 9, 2005): 253–55. http://dx.doi.org/10.1098/rsbl.2005.0324.

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There is increasing evidence from non-human animals that males adjust their ejaculate expenditure according to the risk of sperm competition. In this study we show that, after controlling for lifestyle factors known to influence semen quality, human males viewing images depicting sperm competition had a higher percentage of motile sperm in their ejaculates. Many lifestyle variables were confirmed to influence semen quality, including the recent suggestion that storage of mobile phones close to the testes can decrease semen quality.

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39

Tucker, L. A., T. Matson, and L. H. A. Morris. "Variability in semen quality from British sport horses." Proceedings of the British Society of Animal Science 2007 (April 2007): 29. http://dx.doi.org/10.1017/s1752756200019323.

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Recent advances in artificial insemination (AI) and semen preparation have led to an increase in the availability of equine genetics globally. Generally, less than half the stallion population produce semen of suitable robustness to maintain acceptable fertility post-freezing, and research is needed to improve not only the numbers of stallions whose semen can be successfully frozen, but also to increase the number of collections that meet fertility standards. The number of progressively motile sperm present during ovulation determines successful conception in horses. AI practitioners recommend that 500 million progressively motile sperm should be introduced into the mare’s uterus to ensure best chance of pregnancy (Matson and Pycock, 2006), and progressive motility is currently accepted as suitable for determining fertility in stallions. Established laboratory quality assessments are used to identify stallions with suitably robust semen for freezing and worldwide distribution, however fertility traits can be influenced by many factors, e.g. age, level of competitive performance or workload, nutrition, disease and stress (Tucker and Morris, 2006). In order to investigate the impact of such factors on semen quality, it is first important to determine the level of variation in semen quality between stallions that are currently used for frozen semen collections, which formed the main objective of the following study. This baseline can then be used to compare improvements in semen quality from various nutritional and management interventions, which form the basis of our ongoing research program.

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40

Mussa, Ngassa Julius, Wuttigrai Boonkum, and Vibuntita Chankitisakul. "Semen Quality Traits of Two Thai Native Chickens Producing a High and a Low of Semen Volumes." Veterinary Sciences 10, no. 2 (January 18, 2023): 73. http://dx.doi.org/10.3390/vetsci10020073.

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Semen quality traits such as semen volume, sperm motility, sperm concentration, pH, and color are very important, since they can determine the fertility potential of the semen. The objective of this study was to compare the semen quality traits of Thai Native chickens (Pradu Hang Dam and Chee) producing high and low semen volume. Semen was collected from 24 roosters (12 reps) and divided into two groups of roosters producing high semen volume (>0.3 mL) and those producing a low amount of semen (<0.3 mL). Fresh semen quality parameters (semen volume, sperm motility, viability, concentration, and pH) were measured and compared between groups. It was found that semen volume showed a positive correlation with sperm concentration, mass movement, motility, viability, and pH of fresh semen. There was no significant difference in fresh semen parameters between Pradu Hang Dam and Chee roosters with either high or low ejaculate semen, except for sperm concentration. Sperm concentration was significantly higher in Chee compared with Pradu Hang Dam in both high and low ejaculate semen. The semen quality parameters between groups of chickens producing high and low ejaculate semen were significantly different except for sperm viability. In conclusion, it was found that chickens producing high volumes of semen have better sperm quality than those producing a low semen volume. Therefore, these results provide a possible consideration that the amount of semen production among chickens can be used as a tool in selecting Thai native roosters for breeding.

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41

Lovercamp, K. W., and A. Giri. "Effect of warmed semen extender on boar sperm quality post-collection." Transactions of the Missouri Academy of Science 47, no. 2019 (January 1, 2019): 13–17. http://dx.doi.org/10.30956/mas-30.

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Abstract Semen used for artificial insemination (AI) in the swine industry is typically collected into a warmed semen collection cup containing an empty collection bag. If the ambient temperature does not closely match the temperature of the warmed collection cup and semen at the time of collection then negative effects to the motility and morphology of the sperm cells may occur due to temperature shock. The purpose of this research was to determine if collecting boar semen directly into semen extender warmed to 38.5°C would affect sperm quality post-collection. Sexually mature Berkshire x Duroc crossbred boars (n = 7) were semen collected once per week for four consecutive weeks. Every other collection, the boar's ejaculate was collected into a collection cup and plastic collection bag warmed to 38.5°C containing either no semen extender (control) or 100 mLs of a commercially available long-term semen extender warmed to 38.5°C (treatment). Following collection and processing, the semen was extended to 37.5 × 106 sperm/mL and stored for 6 days post-collection in a semen cooler at 17°C. Motility and morphology were evaluated on day 0 (day of collection) and day 6. There was no day x treatment effect (P > 0.05). Statistical differences (P = 0.03) were found between the treatment and control for sperm motility (82.2 vs. 75.2%) and sperm progressive motility (64.1 vs. 53.5%). No differences (P = 0.96) were present for normal sperm morphology in the treatment compared to the control (89.1 vs. 89.0%). These data suggest that boar semen ejaculates collected into a collection cup and plastic collection bag containing 100 mLs of semen extender warmed to 38.5°C will have greater percentages of motile and progressively motile sperm compared to boar sperm collected into a collection cup and plastic collection bag warmed to 38.5°C containing no semen extender.

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Milovanović, Aleksandar, Tomislav Barna, Dubravka Milanov, and Miodrag Lazarević. "MODEL FOR COOPERATION BETWEEN BOAR STUDS AND LABORATORIES FOR REPRODUCTION IN BOARS’ SEMEN QUALITY CONTROL." Archives of Veterinary Medicine 6, no. 1 (September 6, 2013): 57–70. http://dx.doi.org/10.46784/e-avm.v6i1.145.

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In this article we presented procedures and results of boar semen quality control performed at the Scientific Veterinary Institute “Novi Sad” based on continuous cooperation with the farms’ centers for boar semen production. Th e data obtained by computer analysis (CASA-computer assisted sperm analysis), flow cytometry and cyto-morphologic examination were used for semen quality evaluation. Th e selected parameters were compared with the reproductive results in sows, such as: farrowing rate, number of piglets per litter, ratio of piglets born alive and stillborn piglets). Semen quality evaluation based on spermatozoa progressive motility, sperm concentration, morphological characteristics and chromatine structure damage were used to give recommendations for semen processing, dilution degree, prospective therapy of boars, or, at least, their culing. Analysis of semen was complemented with seasonal bacterial cultivation and controls in cases of sudden drop on semen quality. Separate fi les containing semen quality graphs and reproductive indicators for easier monitoring were created for every boar. Systematic semen analyses performed by the use of several modern methods, along with periodic bacteriological control, offer possibilities for reliable assessment of boars’ semen quality.

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T. Wahyuningsih, R. E. Mirwandhono, and Hamdan. "The Spermatozoa Quality of Kampong Chicken Using Various Diluents." Jurnal Peternakan Integratif 9, no. 3 (March 31, 2022): 65–70. http://dx.doi.org/10.32734/jpi.v9i3.6338.

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Kampong chicken has great potential to be developed into superior breed in an effort to support food security and improve farmer welfare. This study aims to determine the effect of adding lactose to free-range chicken semen macroscopically and microscopically. This research was conducted at the Laboratory of the Center for Artificial Insemination at the Food Security and Animal Husbandry Service of North Sumatra Province in October 2020 - January 2021. This study used a Randomized Block Design method with treatment P0 ( Semen control) P1 (Semen with Ringers diluent), P2 (Semen with diluent lactose), P3 (Semen with Ringers diluent + Lactose), macroscopic test and parameters include color, volume, concentration and pH of semen. To determine the quality of spermatozoa can be seen from the motility test, abnormality and viability. The results showed that the use of Ringer + lactose diluent in chicken semen stored for 8 hours at 40C during the study had a very significant effect on spermatozoa motility with values: P0 (52.88% a), P1 (21.64% bc). P2 (31.39% b), P3 (19.57% c) respectively and had no significant effect on abnormalities of spermatozoa with values: P0 (6.59% tn), P1 (6.11% tn), P2 (7, 36% tn), P3 (4.4% tn) respectively. As conclusions that the use of ringers + lactose diluent can work well to defend spermatozoa from damage to cell membranes resulting from the elements contained in ringers and lactose solutions which can be used as an energy source when the semen is cold shock during the storage period

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Igna, Violeta, Ada Telea, Tiana Florea, Roxana Popp, and Adrian Grozea. "Evaluation of Russian sturgeon (Acipenser gueldenstaedtii) Semen Quality and Semen Cryopreservation." Animals 12, no. 16 (August 22, 2022): 2153. http://dx.doi.org/10.3390/ani12162153.

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The alarming decline in sturgeon populations doubled by growing demands for sturgeon products, urge us to prevent the loss of these species. Fish stocking in natural habitats and developing fish farms are viable solutions, which can be successfully implemented with the help of reproductive biotechnologies. Despite the fact that semen cryopreservation is admittedly an important step for saving the Russian sturgeon, a reproducible standard method with good results has yet to be identified. Sperm quality assessment is essential for quantifying the impact of cryopreservation on spermatozoa. The purpose of our study was to provide additional information regarding semen cryopreservation and semen quality evaluation for the Russian sturgeon. Our study method is based on the use of two yolk-free extenders (with different cryoprotectants: DMSO and methanol) for freezing semen, using a simple freezing protocol. Parameters such as volume, concentration, motility, morphology and membrane integrity were evaluated. In conclusion, cryopreservation of Russian sturgeon spermatozoa using an extender containing methanol as cryoprotectant led to high egg fertilization percentages (72.67 ± 5.4%) even if the total motility values recorded for thawed semen were quite low (18–25%). Additionally, we identified two optimal stains for morphological studies and morphometry (Spermac stain kit and Trypan Blue Solution).

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Janczewski, Z., and L. Bablok. "Semen Characteristics in Pubertal Boys. I. Semen Quality After First Ejaculation." Archives of Andrology 15, no. 2-3 (January 1985): 199–205. http://dx.doi.org/10.3109/01485018508986912.

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Janczewski, Z., and L. Bablok. "Semen Characteristics in Pubertal Boys. III. Semen Quality and Somatosexual Development." Archives of Andrology 15, no. 2-3 (January 1985): 213–18. http://dx.doi.org/10.3109/01485018508986914.

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Janczewski, Z., and L. Bablok. "Semen Characteristics in Pubertal Boys. IV. Semen Quality and Hormone Profile." Archives of Andrology 15, no. 2-3 (January 1985): 219–23. http://dx.doi.org/10.3109/01485018508986915.

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Elkhawagah, Ahmed R., Tiziana Nervo, Mariagrazia Poletto, Nicola A. Martino, Davide Gallo, Alessia Bertero, and Leila Vincenti. "Effect of relaxin on semen quality variables of cryopreserved stallion semen." Animal Reproduction Science 216 (May 2020): 106351. http://dx.doi.org/10.1016/j.anireprosci.2020.106351.

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Yuan, Guanxiang, Yu Liu, Guihua Liu, Lan Wei, Ying Wen, Suli Huang, Yinsheng Guo, Fei Zou, and Jinquan Cheng. "Associations between semen phytoestrogens concentrations and semen quality in Chinese men." Environment International 129 (August 2019): 136–44. http://dx.doi.org/10.1016/j.envint.2019.04.076.

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Hidayat, Cecep, Soni Sopiyana, and Rahman Rahman. "Review: Pengaruh Pakan Terhadap Kualitas Semen Ayam." Jurnal Ilmu dan Teknologi Peternakan Tropis 7, no. 3 (September 20, 2020): 218. http://dx.doi.org/10.33772/jitro.v7i3.11695.

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ABSTRAKSemen adalah cairan yang dikeluarkan oleh organ kelamin ternak jantan yang secara normal diejakulasikan ke dalam saluran reproduksi ternak betina melalui kopulasi. Evaluasi semen merupakan alat utama untuk memprediksi kinerja reproduksi ternak ayam jantan. Evaluasi kualitas semen penting dilakukan untuk menyelesaikan salah satu masalah utama dalam peternakan pembibitan ayam, yaitu rendahnya fertilitas. Faktor terbesar dari sumber masalah tersebut terkait dengan rendahnya kualitas semen ayam. Kualitas semen ayam lebih banyak dipengaruhi oleh faktor non genetik, seperti faktor pakan dan nutrisi. Tujuan dari penulisan makalah ini adalah untuk mengkaji hasil-hasil studi terkait pengaruh pakan terhadap kualitas semen ayam. Hasil studi menunjukkan bahwa faktor pakan sangat mempengaruhi kualitas semen ayam, terutama imbangan energi metabolis-protein dalam pakan ayam jantan sangat penting diatur untuk menjaga berat badan ayam jantan agar tidak terjadi kelebihan atau kekurangan berat badan yang sangat mempengaruhi kualitas semen ayam. Suplementasi suplemen dan imbuhan pakan menjadi upaya yang dapat dilakukan untuk meningkatkan kualitas semen ayam. Jenis suplementasi yang dapat dilakukan dengan bahan sumber antioksidan, asam amino, mikromineral, bahan mengandung bioaktif tanaman, bahan sumber asam lemak dan probiotik. Disimpulkan bahwa faktor pakan sangat menentukan terhadap kualitas semen ayam.Kata kunci: ayam jantan, kualitas semen, pakanABSTRACTRooster semen is a liquid released by the genitals of the roosters which is normally ejaculated into the female reproductive tract during copulation. Semen evaluation is the main way to predict the reproductive performance of roosters. Semen quality evaluation is important to solve one of the main problems in poultry breeding farms, namely low fertility, whereas the biggest factor of this problem source is related to the poor of roosters’ semen quality. The quality of roosters semen is more influenced by non-genetic factors, such as feed and nutrition. The purpose of this paper was to examine the results of studies so far related to the effect of feed on the roosters’ semen quality. The results of the study indicated that the feed factor greatly influences the quality of roosters semen. The metabolic energy-protein balance in the rooster's feed was very important to regulate to maintain the weight of the rooster so as not to overweight and underweight because bodyweight greatly affects the quality of roosters semen. Supplementation of feed supplements and feed additives was an effort that can be done to improve the roosters semen quality. The kind of supplementation that could be done was supplementation of antioxidant sources, amino acids, microminerals, materials containing plant bioactive, fatty acid source ingredients, and probiotics. It was concluded that the feed factor was crucial to the quality of semen quality produced by the roosters.Keywords: feed, rooster, semen quality

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