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Prediction of intake and average daily gain by different feeding systems for goats
(Elsevier B.V., 2011-06-01)
A main purpose of a mathematical nutrition model (a.k.a., feeding systems) is to provide a mathematical approach for determining the amount and composition of the diet necessary for a certain level of animal productive ...
Ingestive behavior and performance of female lambs grazing on Marandu palisadegrass under different stocking rates
(Sociedade Brasileira de Zootecnia, 2011-11-01)
The ingestive behavior and performance of female lambs grazing on Marandu pasture submitted to different stocking rates during the rainy and transition season were evaluated. The experimental area with 4,500 m² was divided ...
Comparison of selection criteria for pre-weaning growth traits of Nelore cattle
(Elsevier B.V., 2004-03-01)
Genetic parameters were estimated for pre-weaning average daily gain (ADG) and number of days to gain 160 kg from birth to weaning (D 160) of Nelore cattle. Ranks of animals were compared for these traits. Heritability ...
Estimates of genetic parameters for visual scores and their correlation with production and reproductive traits in Brahman cattle
(Sociedade Brasileira de Zootecnia, 2012-06-01)
The 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) and reproductive (scrotal ...
Desempenho de novilhos de corte em pastos de capim-tanzânia sob quatro alturas de desfolha
(Universidade Federal de Minas Gerais (UFMG), Escola de Veterinária, 2014-04-01)
This study was carried out to evaluate the effects of four grazing heights under continuous stocking of Tanzânia grass (Panicum maximum Jacq. Cv. Tanzânia) on the stocking rate, performance and beef production per hectare. ...
Avaliação do Desempenho ao Primeiro Parto de Fêmeas Nelore e F1
(1999-07-01)
The objetive of this study was to compare the first calving performance of Nellore and F1 crossbred cows. Data used in the study came from 741 calving of Nellore and F1 cows born from the matting of Nellore cows with sires ...
Comparação de Diferentes Modelos para Avaliação Genética de Características de Desempenho Pós-desmama em Suínos
(2001-11-01)
The aim of this work was to evaluate different models in which the random effects of litter and maternal genetic (correlated or not with the direct additive genetic effect) were added in sequence to the direct additive ...
Early weaning and concentrate supplementation strategies for lamb production on Tifton-85 pasture
(Revista Brasileira Zootecnia Brazilian Journal Animal Sci, 2014-08-01)
The influence of early weaning and concentrate supplementation strategies on sward characteristics, forage chemical composition and lamb productivity were evaluated in four production systems on Tifton-85 pasture: suckling ...
Levels of corn meal based supplement in Nellore steers finished on pasture in the dry season: performance, carcass characteristics and pasture evaluation
(Revista Brasileira Zootecnia Brazilian Journal Animal SciVicosa-mgBrasil, 2010)
Selection criteria for feed efficiency-related traits and their association with growth, reproductive and carcass traits in Nelore cattle
(2021-01-01)
Context: Livestock feed costs have a higher impact on the profitability of beef production systems and are directly related to feed efficiency. However, these traits are hard and have high costs to measure, reducing the ...