搜索结果: 1-6 共查到“家畜繁殖学 Production Traits”相关记录6条 . 查询时间(0.062 秒)
Effects of polymorphism in the bovine PTPRQ gene on the expression of MYF6 and MYF5 genes in skeletal muscle and on meat production traits in beef bulls
receptor-type III PTP with phosphatidylinositol phosphatase activity genotype muscle regulatory factors bovine meat traits
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2016/6/3
The aim of the study was to characterize nucleotide sequence polymorphisms in the bovine PTPRQ gene, to search for their possible effect on the expression of myogenic factor 6 (MYF6; MRF4) and myogeni...
Genetic parameters for female fertility and milk production traits in first-parity Czech Holstein cows
dairy cattle reproduction production
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2015/6/23
The aim of this study was to estimate genetic parameters for female fertility and production
traits in first-parity Czech Holstein cows and to quantify the effect of using this information on the ac...
Polymorphism, Genetic Effect and Association with Egg Production Traits of Chicken Matrix Metalloproteinases 9 Promoter
Chicken Matrix Metalloproteinases 9 Ovary Polymorphism Reproduction
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2016/5/17
Matrix metalloproteinases (MMP) are key enzymes involved in cell and tissue remodeling during ovarian follicle development and ovulation. The control of MMP9 transcription in ovarian follicles occurs ...
Genetic parameters for test-day model with random regressions for production traits of Czech Holstein cattle
test-day yields random regression model genetic parameters Czech Holstein cattle
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2015/6/1
Multiple-lactation random regression model was applied to test-day records of milk, fat and protein yields in the first three lactations of the Czech Holstein breed. Data included 9 583 cows, 89 584, ...
Studies on the Development of Novel 305 day Adjustment Factors for Production Traits in Dairy Cattle
Novel 305 day Adjustment Factors Multiplicative Correlation Coefficients Percent Squared Bias (PSB)
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2016/4/18
This study was conducted to develop a novel adjustment factors for 305 days using 138,103 lactation records and 1,770,764 daily records, which were based on environmental circumstances such as herd ye...
Efficiency of Different Selection Indices for Desired Gain in Reproduction and Production Traits in Hariana Cattle
Selection Indices Desired Gain Heritability Phenotypic and Genetic Correlation Production and Reproduction Traits Hariana Cattle
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2016/4/13
An investigation was conducted on 729 Hariana cows maintained at Government Livestock Farm, Hisar, from 1973 to 1999, with an objective to compare the efficiency of various selection indices for attai...