搜索结果: 1-5 共查到“家畜繁殖学 beef”相关记录5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
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...
Number of Calves Produced at Specified Age as a Measure of Reproductive Performance in Beef Cattle under Artificially-Inseminated Breeding Scheme
Beef Cattle Genetic Parameter Number of Calves Produced Reproductive Performance
2016/4/29
Reproductive abilities in beef cattle herds are receiving increased attention due to recent rises in production costs. To achieve more efficient management, a measure of fertility, namely the number o...
Effect of Suckling Systems on Serum Oxytocin and Cortisol Concentrations and Behavior to a Novel Object in Beef Calves
Oxytocin Cortisol Natural Suckling Investigative Behavior Calf Stress
2016/5/19
We investigated differences between effects of natural- and bucket-suckling methods on basal serum oxytocin (OT) and cortisol concentrations, and the effect of OT concentration on affiliative and inve...
Feeding systems costs for rearing beef heifers bred at 18 months of age
rearing heifers 18-months-old breeding feeding systems production cost
2010/8/31
Age at first breeding of heifers is related with economic efficiency of cattle production. The determination of feeding systems for rearing heifers is essential to reach high pregnancy rates. The aim ...
Effect of selected fattening performance and carcass value traits on textural properties of beef
bulls fattening performance traits meat quality textural properties Warner-Bratzler shears compression test
2015/6/1
Fifty-one crossbreed young bulls, progenies of Charolais (CH), Czech Pied (CP), Simmental (SI) and Blonde d’Aquitaine (BA) beef cattle bred at the paternal position crossed by Czech Pied at the matern...