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Variance components,heritability estimates,and breeding values for performance test traits in Old Kladruber horses
harness horse genetic parameters performance test genetic resource
2016/9/1
The Old Kladruber horse is an important Czech genetic resource. In the current study, two categories of traits were evaluated – the first, a numerical score for Type and Gender Expression and the seco...
llele frequency for c.335 A>C polymorphisms in porcine ghrelin/obestatin prepropeptide gene and association analysis with performance traits in various pig breeds
quantitative trait locus GHRL pigs polymorphism genetic marker
2015/10/9
The allelic frequency of c.335A>C polymorphisms in the porcine ghrelin/obestatin prepropeptide (GHRL) gene was surveyed among six pig breeds and two subspecies of wild boars. The c.335C was the most f...
Association analysis of seven candidate genes with performance traits in Czech Large White pigs
pig genotyping SNP performance trait estimated breeding value (EBV) Czech Large White
2015/6/9
In this study association analyses were performed between genes tagged SNP (IGF2, NAMPT, DGAT1, MYF4, MC3R, MC4R and MYOD1), performance traits (backfat thickness, lean meat content, average daily gai...
Models for evaluation of growth of performance tested bulls
cattle random regression heritability statistical model growth curve bulls
2015/6/5
Before being used for insemination, young bulls of Czech Fleckvieh (CF) are tested for growth at performance-test stations. While at stations, the bulls are weighed monthly. Evaluation included 7 448 ...
Genetic correlations between racing performance at different racing distances in Thoroughbreds and Arab horses
Thoroughbreds Arab horses racing performance genetic correlations animal model
2015/6/2
The purpose of this study was to find out whether abilities to win races of different distances are different traits. Data included information on 14 665 starts of 1 646 Thoroughbreds, aged 2 to 9 yea...
The use of performance test parameters for selection of gilts before their placement into breeding
gilt growth carcass value backfat thickness lean meat content body condition
2015/6/2
The objectives of the paper were to evaluate carcass value in reared gilts on the basis of carcass analysis during the station test of purebred progeny of pigs and ultrasonically with Sonomark-100 or ...
含不同比例莱芜猪血缘杂交猪胴体品质及肉质特性的研究Studies on Carcass and Meat Quality Performance of Crossbred Pigs withGraded Proportions of Laiwu Black Genes
猪 莱芜猪 杂交 胴体品质 肉质特性
2008/1/6
摘 要： 以莱芜猪、3/4莱芜猪、1/2莱芜猪、1/4莱芜猪和大约克夏猪（共60头）为研究对象，在同样条件下饲养至90kg屠宰，研究比较不同比例莱芜猪血缘对肥育猪胴体品质和肉质特性的影响。结果表明：不同血缘结构的试验猪间在胴体重、胴体长、后腿比例和背膘厚方面存在显著的差异（P<0.05）；眼肌面积和瘦肉率方面则存在极显著的差异（P<0.01），并且是随莱芜猪血缘含量的减少，其胴体长、后腿比例、眼肌...
仙居鸡染色体Ag-NORs及其与生产性能的关系Studies of Chromosome Ag-NORs of Xianju Chickens and the Relation with the Productive Performance
染色体 Ag-NORs 生产性能
2007/12/31
摘要采用外周血淋巴细胞培养，对仙居鸡Ag-NORs进行了研究。结果表明：仙居鸡的Ag-NORs常定位于1p、3p、4p、Zp、2q上，均数为3.26，众数为3，不同个体间以及同一个体不同细胞间Ag-NORs的大小，数目和分布存在多态性，研究还发现有Ag-NORs联合现象。此外，Ag-NORs频率不同的两组间生产性能差异比较表明：公鸡的胫骨长差异显著（P＜0.05），其它两组间的生产性能差异均不显著...