This work was carried out to evaluate the influence of water tensions (35, 60, 100 and 500 kPa) and nitrogen levels (0 – Control, 45, 90, 180, 360 kg/ha) on the dry matter (DM) yield, the dry matter yield rate (DMYR) and the leaf area index (LAI) of Cynodon spp. cv. Tifton 85 bermudagrass. A randomized blocks design in a split splot scheme with three replications was used, split plots were represented by the water tensions were and the plots, […]

Sixty barrows from crossing between commercial hybrids with an average initial weight of 95.7 ± 0.80 kg and an average final weight of 109.8 ± 1.13 kg were used to evaluate different dietary lysine levels on performance and on carcass characteristics. The experimental design used was a randomized blocks with five treatments, six replicates and two animals per replicate. The treatments corresponded to a basal diet with 13.7% of crude protein, 3367 kcal DE/kg supplemented with five L-lysine-HCl levels, resulting […]

The objective of this work was to study the carcass and meat characteristics of Mediterranean buffalos, finished in feedlot for 112 days and fed with 33% concentrate and 67% chopped sugar cane or corn silage diets, containing 12% of crude protein. Twelve buffalos steers, with 20 months of age, were used. Slaughter weight, hot carcass weight and cold carcass weight were similar between the treatments, being, respectively, 363.7, 181.8 and 179.9 kg, for animals fed with chopped sugar cane, and […]

Genetic parameters for first lactation test-day milk yields and 305 day milk yield (M305) for Caracu cows were estimated. The test-day animal model included additive genetic effect as random and contemporary group and age of cow (quadratic regression) as fixed effects. Two contemporary groups were defined to explain variation, composed by year, week of test and paddock (gc1) or year, week of test and paddock (gc2). Variance components were estimated by Restricted Maximum Likelihood. Phenotypic, residual and genetic additive variances […]

Eight Podocnemis expansa commercial flocks, all of them located at the county of Diorama State of Goiás, were monitored with the purpose of evaluating, the carcass yield parameters and chemical composition. The experiment was conducted upon animals with ages ranging from 23 to 29 months, whose performances were evaluated by taking their biometrical measures – the carapace rectilinear length in millimeters and the gain of weight in grams. It was also evaluated the carcass output and chemical composition. The comparison […]

This work aims to evaluate the passage of digesta kinetics through the digestive tract and estimate the water and nitrogen balance in horses fed different levels of roughage in diets. Four crossbred yearling were used with age of 18 months, housed in individual stalls and exercised once a day. The present experiment was performed according to a 4 X 4 Latin Square design which each experimental period had 14 days for adaptation to diet and five days for fecal collection. […]

The data were obtained from 51 herds to participate in the Nelore Catttle Breeding Program (NCBP) from the states of Goiás (GO), Mato Grosso do Sul (MS), Mato Grosso (MT), Minas Gerais (MG), São Paulo (SP), Maranhão (MA) and Bahia (BA). Were used to estimative genetic parameters for standardized weights at 120 (P120), 455 (P455) and 550 (550) days of age. Univariate and bivariate analysis were performed by animal model using MTDFREML program. For P120 was used a model that […]

Fourty-eight barrows proceeding from crossing between commercial hybrids were used in a study to evaluate the different lysine levels on the performance and the carcass characteristics. The swines average initial and final weight was 110.1 ± 0.72 kg and 125.3 ± 1.23 kg, respectively. The animals were distributed in an experimental design of randomized blocks with four treatments, six replicates and two animals per replicate. The treatments corresponded to a basal diet with 13.7% of crude protein and 3367 kcal […]

The effect of three stocking rates on intake, botanical composition and the nutritive value of the forage from pastures of Brachiaria decumbens with Stylosanthes guianensis cv. Mineirão and B. brizantha cv. Marandu with S. guianensis cv. Mineirão was evaluated. The experimental design was a randomized complete block with treatments subdivided into plots with two replications. The design of the plots was a 2 x 3 factorial with 2 grasses (B. decumbens and B. brizantha cv. Marandu) in association with S. […]

The objective was to evaluate the effect of supplemention of young bulls, under grazing, in the rainy season period. The experiment was conducted at the Braga Farm in Araponga, MG, in the period from january to april of 1999. Using twenty four young bulls with 335 kg LW of initial body weight, and nine fistulated steers, in Gordura (Melinis minutiflora) and Brachiaria radicans grass. Three comercial supplements were used: mineral salt supplement (SM), corn-wheat meal and urea based protein supplement […]