Добірка наукової літератури з теми "Preweaning survival"
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Статті в журналах з теми "Preweaning survival"
Oke, U. K., B. B. A. Taiwo, V. Buvanendran', S. A. S. Olorunju, and I. F. Adu. "Environmental factors affecting pre-weaning survival of Red Sokoto goats." Nigerian Journal of Animal Production 32, no. 2 (January 3, 2021): 185–90. http://dx.doi.org/10.51791/njap.v32i2.1244.
Повний текст джерелаFeldpausch, Julie A., Jan Jourquin, Jon R. Bergstrom, Jason L. Bargen, Courtney D. Bokenkroger, Duane L. Davis, John M. Gonzalez, et al. "Birth weight threshold for identifying piglets at risk for preweaning mortality." Translational Animal Science 3, no. 2 (March 1, 2019): 633–40. http://dx.doi.org/10.1093/tas/txz076.
Повний текст джерелаMcKay, R. M. "Preweaning losses of piglets as a result of index selection for reduced backfat thickness and increased growth rate." Canadian Journal of Animal Science 73, no. 2 (June 1, 1993): 437–42. http://dx.doi.org/10.4141/cjas93-046.
Повний текст джерелаZeng, Zhikai K., Pedro E. Urriola, Jenelle R. Dunkelberger, John M. Eggert, Roos Vogelzang, Gerald C. Shurson, and Lee J. Johnston. "Implications of early-life indicators for survival rate, subsequent growth performance, and carcass characteristics of commercial pigs1." Journal of Animal Science 97, no. 8 (June 29, 2019): 3313–25. http://dx.doi.org/10.1093/jas/skz223.
Повний текст джерелаMalik, R. C., M. A. Razzaque, M. A. T. Aali, N. M. Al-Khozam, T. A. Al-Mutawa, and S. Abbas. "Factors affecting preweaning lamb survival in continuously housed sheep." Australian Journal of Experimental Agriculture 38, no. 8 (1998): 795. http://dx.doi.org/10.1071/ea98089.
Повний текст джерелаAzevedo Junior, Jairo, Juliana Petrini, Gerson Barreto Mourão, and José Bento Sterman Ferraz. "Preweaning Calf Survival of a Nellore Beef Cattle Population." Journal of Agricultural Science 9, no. 8 (July 18, 2017): 51. http://dx.doi.org/10.5539/jas.v9n8p51.
Повний текст джерелаMonson, Daniel H., and Anthony R. DeGange. "Reproduction, preweaning survival, and survival of adult sea otters at Kodiak Island, Alaska." Canadian Journal of Zoology 73, no. 6 (June 1, 1995): 1161–69. http://dx.doi.org/10.1139/z95-138.
Повний текст джерелаKnauer, Mark, Terry Armstrong, Brandon Barnes, Austin Jones, Bo Mobley, Tyler O'Dell, Lee Tyre, and Matthew Wynn. "254 Impact of Preweaning Factors on Nursery Throughput." Journal of Animal Science 100, Supplement_2 (April 12, 2022): 119. http://dx.doi.org/10.1093/jas/skac064.201.
Повний текст джерелаCecchinato, A., V. Bonfatti, L. Gallo, and P. Carnier. "Survival analysis of preweaning piglet survival in a dry-cured ham-producing crossbred line1." Journal of Animal Science 86, no. 10 (October 1, 2008): 2486–95. http://dx.doi.org/10.2527/jas.2007-0825.
Повний текст джерелаMorton, Jodi M., Austin J. Langemeier, Theresa J. Rathbun, and Duane L. Davis. "Immunocrit, colostrum intake, and preweaning body weight gain in piglets after split suckling based on birth weight or birth order1." Translational Animal Science 3, no. 4 (July 1, 2019): 1460–65. http://dx.doi.org/10.1093/tas/txz131.
Повний текст джерелаДисертації з теми "Preweaning survival"
Garzón, Natalia Andrea Marín. "Genomic analysis for preweaning calf mortality in Nellore cattle /." Jaboticabal, 2019. http://hdl.handle.net/11449/183544.
Повний текст джерелаResumo: ABSTRACT – Preweaning calf mortality is one of main causes of economic losses in beef cattle, since most of economic incomes are represented by the number of weaned calves available for sale. It is also detrimental for genetic progress due to the reduction of young candidates for selection. The inclusion of molecular markers in genetic analysis allows a better understanding of genetic mechanisms underlying calf mortality. The objectives of this study were: i) to estimate direct and maternal heritability of preweaning calf mortality in Nellore cattle and ii) to seek for genomic regions and candidate genes affecting direct and maternal effects of preweaning calf mortality in Nellore cattle. Variance components were estimated via Bayesian Inference using a threshold animal model, that included the systematic effects of contemporary group, birth weight as linear covariate, and age of dam at calving as linear and quadratic covariates. The direct and maternal genetics, and the residual were fitted as random effects. The final dataset used contained phenotypic records on 67,196 animals, offspring of 1,469 sires and 30,970 dams. The SNPs effects were estimated based on the weighted single-step GBLUP approach, using information of 8,443 genotyped animals with 410,936 SNPs. Direct and maternal heritability estimates were of 0.2143±0.0348 and 0.0137±0.0066, respectively. The top 10 genomic regions accounted for 13.61 and 14.23% of direct and maternal additive genetic variance and harbor... (Resumo completo, clicar acesso eletrônico abaixo)
Mestre
Tucker, Bryony Serena. "Identifying and managing low viable piglets for improved survival." Thesis, 2022. https://hdl.handle.net/2440/136019.
Повний текст джерелаThesis (Ph.D.) -- University of Adelaide, School of Animal and Veterinary Science, 2022
Jean, Kuo-Bin, and 簡國彬. "Effects of Medium-Chain Triglycerides on Milk Consumption and Preweaning Survival of Neonatal Pigs." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/79328452622448999496.
Повний текст джерела東海大學
畜產學研究所
84
Summary Two investigations were conducted to study: (1) the effect oforally dosed Medium-Chain Triglycerides (MCT) and carnitine onmilk consumption of neonatal pigs; (2) the effect and cause of MCTin sow diets during late gestation and lactation period on survivalof piglets. Investigation 1: Ten litters of 90 neonatal crossed piglets( Duroc × Landrace) were either dosed 6 mL MCT/kg(BW)~BS2;0.75 ~BS0;、6mL MCTplus 100 μmole carnitine/kg(BW)~BS2;0.75~BS0; by stomach tube (treatmentgroup) or mimicked dosing process (control group) at 8 h afterbirth. The subsequent milk consumption during 8 h after dosingwere determined hourly by weigh-suckle-weigh procedure. Resultsindicated that MCT reduced milk consumption (P<0.05) of pigletsduring first 3-h period after dosing; carnitine improved (P<0.05)milk consumption for first 3-h period, but still was lower( P<0.05) than the milk consumption of piglets in control group.Dosed MCT or carnitine did not affect milk consumption of pigletsin other time period, except a higher milk consumption in 7th hwas observed in piglets in MCT group than piglets in MCT pluscarnitine group (P<0.05). Investigation 2: Experiment 1, beginning at d 84 of pregnancy,51 sows were allotted to one of three treatments and were fedcorn-soybean diets containing 10% of (1) soybean oil, (2) coconutoil or (3) MCT (n=17, 18, 16, respectively). Sows were fed 2 kg/duntil d 100 of pregnancy and were increased 2.4 kg/d untilfarrowing then were fed to appetite during 28-d lactation period.Feed intake, lactation weight loss and weaning-to-estrus intervalof sows were not affected by treatment (P>0.05). A lower fat andgross energy but not protein content in colostrum (or milk) ofsows fed MCT than of sows fed soybean oil or coconut oil wasobserved (P<0.05). Litter performance of sows were not affected bytreatment, except a higher litter weight and preweaning survivalwere found in sows fed MCT or coconut oil. Sows fed MCT (P<0.05)or coconut oil (P<0.11) had larger weaning litter weight than sowsfed soybean oil had. Preweaning survival of pigs was improved inlitters from sows fed MCT (P<0.01) or coconut oil (P<0.10) thanlitters from sows fed soybean oil, such improvement was observedmajorly at first 3 d after birth, especially in pigs weighed <1100g at birth; their survival were 38.1, 70.0 and 91.6 % in soybeanoil, coconut oil and MCT groups, respectively. Experiment 2, beginning at d 84 of pregnancy, 24 sows wereassigned randomly to three dietary treatmemnts with eight sowseach treatment and were fed diets until farrowing. The dietarytreatments were as the same as experiment 1. Results showed thatsows fed MCT had a four-fold increase in plasma β -hydroxy-butyrate (P<0.05); sows fed coconut oil had a two-fold non-significant increase in plasma β -hydroxybutyrate (P>0.05).Piglets farrowed from sows fed coconut oil had higher liver(P<0.05) and muscle (P<0.10) glycogen, and piglets farrowed fromsows fed MCT had higher liver (P<0.10) and muscle (P<0.01)glycogen and plasma glucose level at birth (P<0.05) than thosefarrowed from sows fed soybean oil had. Body dry matter and fatcontents of piglets at birth were not affected by treatment(P>0.05), but piglets farrowed from sows fed MCT had highercarcass protein (P<0.05) than those farrowed from sows fed soybeanoil had. Piglets farrowed from sows fed coconut oil had a lowerblood fructose (P<0.10) and a higher plasma albumin contents(P<0.01), and piglets farrowed from sows fed MCT had a lower bloodfructose (P<0.01) and a higher plasma albumin contents (P<0.01)than those farrowed from sows fed soybean oil had. In summary, orally dosed MCT decreased milk consumption ofpiglets during first 3-h period after dosing and carnitinepartially alleviated this adverse effect. Supplementing MCT orcoconut oil to gestating sow diet improved piglet survival andweaning litter weight while maintaining a normal weaning to estrusinterval of sows. The improved piglet survival probably was causedby MCT or coconut oil improved energy status (ie. higher bodyglycogen) and maturity (ie. lower blood fructose and higher plasmaalbumin contents) of piglets at birth.
Частини книг з теми "Preweaning survival"
Mee, John F. "Managing calves/youngstock to optimise dairy herd health." In Improving dairy herd health Improving, 265–98. Burleigh Dodds Science Publishing, 2021. http://dx.doi.org/10.19103/as.2020.0086.11.
Повний текст джерелаЗвіти організацій з теми "Preweaning survival"
Bertolini, Francesca, John C. S. Harding, Benny E. Mote, Graham S. Plastow, and Max F. Rothschild. Genomic Differences between Preweaning Survival and Mortality of Piglets Following PEDV Outbreaks. Ames (Iowa): Iowa State University, January 2016. http://dx.doi.org/10.31274/ans_air-180814-239.
Повний текст джерела