[PDF] Top 20 Genetic associations between visual scores, body weight and age at first calving in nellore breed cattle

... Body weight records of 231,416 Nellore females obtained from the Brazilian Association of Zebu Breeders were used to determine a linear combination between visual appraisal ... See full document

... that visual scores of conformation, finishing precocity and muscling presented moderate heritability and favorable genetic correlations with weights obtained at young ages ... See full document

... The genetic correlations between the visual scores of body structure, prococity and muscularity were high ...these scores are mainly controlled by the same groups of ... See full document

... for visual scores of conformation (C), precocity (P) and musculature (M), measured at weaning and average daily gain from birth to weaning (GND) of animals used to form the Brangus ... See full document

... growth in beef cattle to detect SNP associations with body weight and weight gain at different ages, Snelling et al ...significant associations ... See full document

... average genetic values and mean phenotypes for weight at weaning and visual scores, stratified by evaluated year, varied among years (Table ...direct genetic value ... See full document

... the genetic cor- relations between weight at 120 days and visual scores were ...from visual scores leads to a positive correlated response to standard ... See full document

... non-additive genetic effects and environmental factors on age at first calving indicates that the expression of this trait depends on adequate management ...adopted in ... See full document

... of visual scores (VS) and ultrasound (US) for carcass evaluation in breeding programs, calls for a knowledge of the relationships between these traits and other rel- evant ... See full document

... effects in a multi-trait ...3), and the estimates of standard errors were of the same magnitude of estimates of maternal heritability, indi- cating that this effect may be close to zero and may not ... See full document

... (2003), in a study with Nelore cattle, concluded that the selection for body weight results in significant body weight responses in yearlings and older ... See full document

... national cattle herd, showing differences in growth and production potential between the different country regions and also between different management systems (FERRAZ; ELER, ... See full document

... CG in various animal species. In small herds, BABOT et ...estimate genetic values for litter size in herds with insufficient number of animals per CG using simulated data, whereas VASCONCELOS ... See full document

... Piedmontese cattle using a medium density chip featuring about 54K ...SNPs in a ...direct calving ease. Three interesting genes are located in this region: LAP3, encoding for a leucine ... See full document

... the genetic variability in strains of Nellore and polled Nellore (Bos indicus) cattle that participated in the Program for Genetic Improvement of the Nellore ... 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

... cases in which the MTM shows ...evaluated in the levels defined by the knot ...those between the trait evaluated in each animal and the breed group (in this case, ...0.75, ... See full document

... years& and& ≥& 50& years),& sensitivity& to& detect& obesity& and& ...the& age& of& 18U34& years& to& approximately& 40%& ... See full document

... the age of the calf at first feeding on passive transfer was studied by TOOD & WHYTE ...levels and were consistent with the results shown in table ...received and decreases ... See full document

... lower calving interval. Several genetic and non-genetic factors can increase or decrease this ...out in most farms, especially in extensive ...the first ten sires are ... See full document