[PDF] Top 20 DISSERTAÇÃO_Growth curve and genetic parameters for carcass traits in cattle

... longitudinal and transversal methods live weight data of Angus males in order to select the best model .... In addition, we also aimed to estimate the components of (co)variance, heritability ... See full document

... BF and TT was higher than in our analysis ...TT and BF in Large White and French Landrace populations ...lower in comparison to data collected in stations (Peškovičová et ... See full document

... the genetic parameters for productive and reproductive traits of a multiple-breed dairy cattle population, as well as to investigate the effect of the genetic group of the ... See full document

... more parameters are included in the model, but the sample size is the ...reduction in the power of the test and some significant effects are not ...identified. In the present study, the ... See full document

... efficient in challenging environments, such as those available in the production systems in ...Brazil. In the present study, the selection index comprises the following traits: ... See full document

... 4000 and 175 iterations for all parameters, ...burn- in and sampling interval were used (Table 1) to avoid serial correlation problems, ... See full document

... raised in Kerman province, south- eastern part of Iran, by nomadic flock ...holders in this region of Iran. The relationship be- tween body weight and the age of animal can be modeled by growth curves ... See full document

... same genetic groups finished on pasture, concluded that selection for weight resulted in heavier animals at slaughter, with a consequent superiority in carcass weight without alterations ... See full document

... allelic and genotypic frequencies of the polymorphisms E2FB ...located in the leptin gene (LEP), and TG5 ...located in the thyroglobulin gene (TG), and evaluate the association of these ... See full document

... of genetic parameters for birth (N = 3909), weaning (N = 3425), yearling (N = 2764) and final (N = 2144) weights were obtained from the records of Gobra cattle collected at the Centre de ... See full document

... reproductive traits measured directly in the female has been little explored in practical terms due to both the low heritability of these traits and lack of infor- mation or inadequate ... See full document

... that in our study there was a high number of cows with high days open and calving intervals, and low services per conception because of different factors: failure to record unsuccessful ... See full document

... consumption and the observed food consumption: it is a measure of feed efficiency which presents estimates of genetic and phenotypic correlations close to zero with muscle score at weaning, weaning ... See full document

... Sahiwal cattle reporting similar genetic parameters for milk yield and related traits (Talbott et ...phenotypic, genetic and environmental correlations of total milk yield ... See full document

... RORC and the marbling score in the Angus and Shorthorn ...breeds, in which the T allele proved favorable for the ...relationships in bovines of the Pasiega breed, in which the ... See full document

... rate in Angus ...0.07 and 0.01 for subsequent rebreeding in Nellore heifers exposed at 24 months of age (normal breeding season), 16 months of age (anticipated breeding season) and considering ... See full document

... CAST/XmnI and the evaluated traits may have been signi! cant with more animals in the ...described in the CAST gene were closely related to variation in meat tenderness, namely the SNP ... See full document

... used, and pheno- typic correlations between such measurements on slaughtered and live animals have been described (Szabo et ...efficiency and precision are influenced ...collecting and ... See full document

... beef cattle population, in tropical areas, is mainly composed of zebu breeds, particularly Nelore ...of carcass quality traits is interesting for meat production and commercialization, ... See full document

... median- and low-efficiency animals caused losses of US$ -0.18 and US$ ...difference in mean return or loss between groups of high- and low-RFI animals was US$ ...42.12 in the total ... See full document