The objective in this study was to evaluate the effects of supplementation levels on productive and nutritional performance and metabolic profile in suckling female calves under grazing. Forty female calves (averaging 3.5±0.06 months and 127.3±2.68 kg), and their respective dams were distributed in a completely randomized design with two treatments and twenty replicates. The treatments were 1) 4 g kg-1 body wei...
The objective of this study was to evaluate the effects of supplementation strategy on performance, nutritional and metabolic characteristics of Nellore suckling female calves, on grazing Urochloa decumbens during the rainy-dry transition period. Forty-four Nellore female calves, averaging 147.6 ± 1.34 kg (4 months), were used. A single supplement 20% of crude protein of dry matter was provided, consisting of d...
The objective of this study was to evaluate the effects of strategic supplementation in the dry period and dry/rainy transition period on the performance and nutritional, metabolic, and reproductive responses of Nellore heifers grazing Urochloa decumbens. Forty-eight Nellore heifers with age and body weight (BW) of eight months and 235 ± 3.3 kg, respectively, were used. The experimental design was a completely ...
Beef cows’ milk yield is typically determined by measuring milk yield once daily and then doubling this value to estimate daily production. However, it is not known whether this is accurate. Thus, we aimed to determine the association between morning and afternoon milk yield in grazing Nellore cows. Eighty Nellore cows were used, with initial weight of 516.0 ± 1.0 kg. The experiment was a completely randomized ...
The research aimed to evaluate the effect of replacing soybean meal with soybean grain on the nutritional parameters and productivity of heifers grazing on Urochloa decumbens in the rainy-dry transition period. Forty crossbred heifers with the initial age and weight of 18 months and 292 ± 6.1 kg, respectively, were used. The experimental design was a completely randomized design, with five treatments and eight ...
Objetivou-se avaliar o efeito de suplementos múltiplos com diferentes teores de proteína bruta sobre, os parâmetros nutricionais, a eficiência de síntese microbiana e o desempenho produtivo de novilhas de corte, em pastagem com Uruchloa decumbens durante o período das águas. Utilizaram-se 39 novilhas Nelore com 14 meses idade e 229,3 ± 0,7 kg de peso corporal. O delineamento foi inteiramente casualizado. Os tra...
Objetivou-se avaliar os efeitos de suplementos múltiplos com diferentes fontes protéicas sobre o desempenho produtivo, consumo, digestibilidade dos componentes da dieta e eficiência de síntese de proteína bruta microbiana de bezerras de corte lactentes sob pastejo. O trabalho foi realizado durante o período de transição de águas-secas (Fevereiro á Julho de 2012), utilizando-se quatro piquetes com média de 4,5 h...
The aim of this study was to evaluate the effects of beef calves’ supplementation in creep feeding systems on milk yield, body weight (BW), and body condition score (BCS) of their dams on tropical pastures using a meta-analytical approach. The database was obtained from 11 experiments conducted between 2009 and 2014 in Brazil, totaling 485 observations (cows). The database consisted of 273 Nellore and 212 cross...
Objetivou-se avaliar o efeito da suplementação com suplemento múltiplo ou mistura mineral durante o período da seca (fase 1) e/ou transição seca-águas (fase 2) sobre as variáveis nutricionais e o desempenho produtivo de novilhas de corte, em pastagem de Uruchloa decumbens. Utilizaram-se 40 novilhas com idade e peso médio iniciais, de 8 meses e 200 ± 3,74 kg, respectivamente. O delineamento foi inteiramente casu...
O objetivo deste trabalho foi avaliar o efeito de diferentes fontes energéticas, milho, sorgo e farelo de trigo, sobre o desempenho, o consumo, a digestibilidade aparente total dos constituintes da dieta e a eficiência de utilização dos compostos nitrogenados em bezerros de corte submetidos ao creep feeding. Foram utilizados 34 bezerros lactentes (12 machos e 22 fêmeas) com idade e peso médio inicial de quatro ...