The experiment was conducted to evaluate the effect of energy supplementation on the performance of finishing cull cows under temporary grazing on triticale plus ryegrass. The energy supplement was ground sorghum in the levels of 0, .3, .6 and .9% of the live weight. Forty Charolais cull cows were divided in age classes and randomly distributed on the supplementation levels. No interaction was observed between age of the cow and supplementation level. The increase of supplementation level did not affect […]

The objective of the experiment was to evaluate, during the growth phase, the dry matter intake, weight gain and feed to gain conversion of young bulls and steers, castrated at eight month, from two breeding systems, straightbred (Charolais – C and Nellore – N) and crossbred (1/2 CN, 1/2 NC), as well as to measure the resulting heterosis. The animals were confined from nine to twelve months and fed a 15% crude protein diet and a 70:30 forage to concentrate […]

ABSTRACT – Twelve quantitative carcass traits of 162 Charolais (Ch), Caracu (Ca), 3/4Ca+1/4Ch, 3/4Ch+1/4Ca, 5/8Ca+3/8Ch and 5/8Ch+3/8Ca, born from 1988 to 1993, were analyzed. Averages for age at the beginning of the confinement period, initial weight, length of confinement period, final age and final weight were, respectively, 712 days, 362 kg, 99 days, 811 days and 489 kg. During the confinement period, the animals were fed corn silage ad libitum and a concentrate diet (79% TDN, 17,8% CP) offered on […]

The objective of this experiment was to evaluate the performance up to 24 months of age of males from two breeding systems, straightbred (Charolais – C and Nellore – N) and crossbred (1/2 CN, 1/2 NC), submitted to two ages of weaning: T3-weaning at three months of age; T7-weaning at 7 months of age. The calves were maintained from birth to the weaning time with the cows on native pasture and, after weaning, both animals from T3 and T7 were […]

The data used in this study are results of the evaluations of crosses among European breeds and Nellore breed. The data regarding to the weaning weight of 883 calves resulted from six mating groups involving crosses of Simental, Charolais and Chianina breeds with Nellore, backcrosses and pure Nellore, were used. The weaning weights were adjusted for cow and calf ages and contemporary group (formed by the combination of year and season of birth and sex) to estimate direct and maternal […]