The objective of this study was to evaluate the effect of different ways of administering probiotic on performance, carcass yield and small intestine microbial population of meat quail. One thousand and fifty quails, one-day old males and females were used, distributed in a randomized completedesign with three treatments (control, probiotic in drinking water and probiotic in feed) and five replications of seventy quail each. Every seven days, the quails were weighed to evaluate weight gain (WG), feed intake (FI), feed […]

The objective of this research was to evaluate the performance, carcass yield and intestinal morphometry of broiler chickens raised under different temperatures that received feed with or without yeast extract and prebiotic in the pre-initial phase. One thousand four hundred and forty one-day old male chicks were used, raised in different climate chambers. Feed with or without the addition of yeast extract and prebiotic was offered only in the pre-initial phase (1 to 7 days). From the eighth day on, […]

The objective of this study was to evaluate the availability of pasture components, average daily gain and carcass characteristics of Nellore steers receiving supplements in the finishing phase during the dry season. The experiment was carried out on Brachiaria brizantha, cv. Marandu pasture, in six nine-hectare paddocks. Forty-eight 30 month old Nellore steers with 412 + 16 kg initial weight were randomly distributed in six groups of eight animals. Each group was placed in a paddock and was weighed at […]

The study was conducted to evaluate effects of sodium monensin, Saccharomyces cerevisiae and a mixture of both, in cattle diets, on ruminal pH and ammonia concentration, partial and total nutrient digestibility, and microbial protein synthesis in the rumen. Four Holstein steers weighting 320 kg and cannulated in the rumen were used. A 4 × 4 Latin square experimental design was used and treatments consisted of daily intake of: 200 mg of sodium monensin (100I); 100 mg of sodium monensin + […]

The objective of this study was to evaluate the reproductive performance of ewes supplemented with organic or common mineral salt in the breeding season, and the effect on metabolic constituents of the blood. The experiment was carried out from November 2005 to May 2006 using 40 Ile de France breed ewes. During the breeding season, sheep grazed on two native pasture areas of 15 ha each and were distributed in two groups, depending on the supplementation: submitted to treatments: receiving […]

The experiment was conducted to evaluate the use of sugar cane at two concentrate levels as a replacement for sorghum silage in the diet of crossbred young bulls in feedlot. Thirty-six young crossbred males were maintained in individual stalls in a randomized complete experimental design with three diets: sorghum silage with 1.0% of the live weight (LW) in concentrate, sugar cane with concentrate (1.0% LW) and sugar cane with concentrate (1.2% LW). The diets were calculated to have approximately 12% […]

The effect was assessed of including licuri and castor oils in the diet on the production and chemical composition of milk from goats and the economic viability of the diets. Crossbred Moxotó goats in a 5 × 5 Latin square design were used with two replications consisting of five diets: a control treatment without supplementary oil (control), and the others with 3% or 5% licuri or castor oil. Milk production decreased with the inclusion of 5% licuri oil, but it […]

This study evaluated body fat, protein and energy contents and nutritional requirements for body weight (BW) gain of lambs in tropical semiarid conditions. Thirty-two castrated Santa Inês 3-to-4-month old lambs (initial BW: 15.8 kg ± 1.4 kg) were used. Eight lambs were initially slaughtered to serve as the reference for initial body weight composition. The remaining 24 animals were placed in a randomized block with three treatments and eight replications. Each one of the eight experimental blocks consisted initially of […]

The objective of this study was to evaluate the effect of different poultry house heating systems on the thermal comfort and performance of broiler chicks during the winter period, in the southern region of Brazil. Three buildings were used, each containing 17,700 broiler chickens (Cobb), during two complete productive cycles. Three heating systems were evaluated: furnace with indirect air heating; infrared heater and radiant experimental “drum” system with an infrared supplemental heating system. In order to evaluate the thermal environment and […]

The objective of this experiment was to evaluate the effect of replacing corn silage with sunflower silage (0, 33 e 66% DM) on the ingestive behavior of fedlot steers. Nine castrated steers were used, with average 288 kg initial live weight and 20 month old from the Nellore (N), 21/32Charolais (C) 11/32N and 21/32N 11/32C genetic groups. A randomized complete block experimental design was used, with three replications per treatment. The tested diets were: 100% corn silage and 0% sunflower […]