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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...
Selection of Sahiwal Cattle Bulls on Pedigree and Progeny
Sahiwal Cattle Bull Selection Pedigree Progeny Milk Yield
2016/4/25
The objective of the study was to compare ranking of Sahiwal bulls selected on the basis of highest lactation milk yield of their dams with their estimated breeding values (EBVs) using an animal model...
Regional Differences of Proteins Expressing in Adipose Depots Isolated from Cows, Steers and Bulls as Identified by a Proteomic Approach
Adipose Depots Hanwoo Liquid Chromatography-tandem Mass Spectrometry Marbling Meat Quality
2016/11/10
Adipose tissue in the loin muscle area of beef cattle as a marbling factor is directly associated with beef quality. To elucidate whether properties of proteins involved in depot specific adipose tiss...
Genetic correlations between type traits of young Polish Holstein-Friesian bulls and their daughters
dairy cattle conformation traits
2015/7/7
The objective of this study was to evaluate the usefulness of young bulls’ conformation scores
in a national type evaluation system. For this purpose the genetic correlations between conformation tr...
Association of heat shock protein 70 with motility of frozen-thawed sperm in bulls
gene expression cryopreservation
2015/7/7
Heat shock protein 70 (HSP70) is considered as a gene which affects semen quality traits. The present study attempted to investigate the relationship between the HSP70 expression level and motility of...
Changes over time in genetic parameters for growth in bulls and assessment of suitability of test methods
gain genetic analysis progeny test
2015/7/3
Objectives of the study were to examine alternative measures of growth potential of bulls in testing stations, determine whether genetic parameter estimates of such traits changed over time, and exami...
Identification of predicted genes expressed differentially in pituitary gland tissue of young growing bulls revealed by cDNA-AFLP technique
Bos taurus breeds differential display gene expression Hereford Limousine polyacrylamide gel electrophoresis restriction enzymes developmental ages real time PCR
2015/6/24
Differentially expressed transcript derived fragments (TDFs) of bovine pituitary gland tissue at different developmental ages of Limousine and Hereford bulls were identified by cDNA-AFLP technique. St...
Growth performance, carcass traits and meat quality of bulls and heifers slaughtered at different ages
meat quality Growth performance
2015/6/23
Older animals were generally fatter and their carcasses contained lower proportions of high-priced meat (P <
0.01) and bones (P < 0.05). Bulls exhibited lower contents of dry matter (P < 0...
Relationships between the results of hypo-osmotic swelling tests, sperm motility, and fertility in Estonian Holstein dairy bulls
bull fertility semen quality sperm membrane intactness
2015/6/23
However, the HOS-2 and HOS-3 values in FT semen
had high correlations with NRR (r = 0.65, r = 0.66, P < 0.001 at batch level and r = 0.63, r = 0.71, P < 0.01
at bull level), which was comparable t...
Growth and carcass performance of bull calves born from Hereford, Simmental and Charolais cows sired by Charolais bulls
beef bull calves crossbreds body weight
2015/6/8
The analysis comprised purebred Charolais bull calves (CH) and crossbred bull calves born from Hereford (CH × HE) and Simmental (CH × SI) cows. Body weights and daily gains were measured in subsequent...
Meat quality and fatty acid profile of the musculus longissimus lumborum in Czech Fleckvieh, Charolais and Charolais × Czech Fleckvieh bulls fed different types of silages
beef meat quality fatty acids breed diet composition
2015/6/8
The effects of breed and diet containing different types of silages on meat quality parameters and fatty acid profile of m. longissimus lumborum (MLL) were evaluated in a total of 30 Czech Fleckvieh (...
Meat quality and fatty acid profile of the musculus longissimus lumborum in Czech Fleckvieh, Charolais and Charolais × Czech Fleckvieh bulls fed different types of silages
beef meat quality fatty acids breed diet composition
2015/6/8
The effects of breed and diet containing different types of silages on meat quality parameters and fatty acid profile of m. longissimus lumborum (MLL) were evaluated in a total of 30 Czech Fleckvieh (...
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 ...
The evaluation of growth and selected carcass and meat quality parameters in fattening bulls fed a diet based on concentrates or maize silage
Czech-Pied bulls high-grain diet weight gain carcass weight m. longissimus
2015/6/5
The aim of the study was to evaluate the growth rate and selected carcass and meat quality parameters in bulls fed a high-grain diet and to compare the results with those obtained in bulls fed a diet ...
Comparison of different traits to evaluate the growth of bulls
bulls daily gains random regression breeding values variances
2015/6/5
The live weights of 8 243 performance-tested bulls from 100 to 400 days of age were analysed using random regression (RR) and single-trait animal models. Evaluations were done for live weight at 400 d...