[PDF] Top 20 Estimates of genetic parameters for carcass, growth and reproductive traits in Nellore cattle

... procedure of the SAS Software (SAS ...effects of the mixed models. The fixed effect of contemporary groups (CG) was defined concatenating season and year of birth of the animals, ... See full document

... included in the multiple-trait model for the genetic analysis were defined based on the least-squares method using the GLM procedure of the SAS software (SAS Institute ...effects of gender, ... See full document

... objective of this study was to evaluate the association of visual scores of body structure, precocity and muscularity with production (body weight at 18 months and average daily gain) ... See full document

... The genetic correlation between log volume under the bark and bowing was negative and intermediate (r = ...-0.623), and the phenotypic correlation was also nega- tive and low (r = ... See full document

... direct genetic effect of LS and CR were ...0.08 and 0.03, respectively. The low estimate may be due to the importance of random environmental effects on variability of the ... See full document

... lack of accuracy and precision in predicting weight gain for Nellore animals may also be the result of the fact that the weight and body composition at maturity for these animals ... See full document

... differences in the random regression model adjustments when they are influenced by the Legendre polynomials, modified Jacobi and trigonomet- ric functions, considering their application in data mod- ... See full document

... Polymorphisms and haplotypes in the bovine neuropeptide Y, growth hormone receptor, ghrelin, insulin-like growth factor 2, and uncoupling proteins 2 and 3 genes and their ... See full document

... notebooks and cattle management ...analyzed and saved using the Control 1 Software, version 1.0 of the Animal Genetic Improvement Laboratory at Universidad Nacional de Colombia sede ... See full document

... Additive genetic and environmental variance esti- mates for milk yield and composition along with their respective standard errors for first parity cows are given in Table ...yield ... 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

... Actual and adjusted weights at 120 d (AW120, RW120) and 210 d (AW210, RW210) from 72,731 male and female Nellore calves born between 1985 and 2005 in 40 herds from PMGRN- ... See full document

... area and residual feed intake in castrated cattle (p < ...score and residual feed intake tended to be negative, as well as between ultrasound rump fat thickness and gain-to-feed ... See full document

... Estimates of genetic parameters for fertility traits in Nile tilapia were obtained by Trọng et ...(2013c), and the heritability estimates ranged between ...0.05 ... See full document

... 80% of the national cattle herd, showing differences in growth and production potential between the different country regions and also between different management systems ... See full document

... consumption and unrestricted access to water. The diet was offered twice a day and 78% consisted of dry ...matter. In all tests, diets were formulated by isocaloric and isoproteic ... See full document

... objective of this work was to determine whether the random regression model using linear splines (RRMLS) is suitable to estimate the genetic parameters for productive and reproductive ... See full document

... matrix of the direct additive genetic effect; ⊗ denotes the direct product between matrices; A is the matrix of the numerators of the Wright relationship coefficients between individuals; M is ... See full document

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

... measure of precocity to all breeders, Atencio (2000) suggested a new approach to the study of sexual precocity in Zebu ...probability of early pregnancy ...born in a beef herd, ... See full document