The objective of this study was to determine the effects of replacing corn by dried citrus pulp on chemical composition and fatty acids profile in longissimus dorsi muscle of thirty-two Santa Ines lambs, slaughtered at average weight of 33 kg at 141 days of age. Lambs were fed a 90% concentrate (ground corn and/or dried citrus pulp, soybean meal and minerals) and 10% coastcross hay (Cynodon spp) diet. Dried citrus pulp was added at 23.7, 46.1 and 68.4% of dry […]

It was evaluated the effects of using products containing propolis in two propolis concentrations (B and C) and two alcoholic extractions (1 and 3) and sodium monensin in forage based diet on intake, total and partial digestibility and ruminal characteristics in cattle. It was used four Holstein castrated bovines, with body weight of 221 ± 21 kg, implanted with ruminal cannulla, in a 4 × 4 Latin square experimental design. The experimental diets were composed of 72.5% roughage and 27.5% […]

The effects of protein supplementation on degradability of dry mattter (DM), crude protein (CP) and neutral detergent fiber (NDF) and acid detergent fiber (ADF) were evaluated in beef cattle grazing Brachiaria brizantha cv Marandu. It was used four Nelore steers (395 ± 9 kg) fitted with ruminal cannula to evaluate kinetics and degradability of the liquid phase and of the particles. Forage samples were collected in other two steers with esophageal cannula. Supplements with 50, 40, and 30% of crude […]

This work aimed at determining the influence of roughage proportions and fat source of the diet on characteristics of carcass and comercial cuts of lambs. It was used 24 non-castrated Santa Inês male lambs, ad libitum fed diet with two proportions of roughage (30 and 70%) and fat (no fat, protected fat, and soybean) slaughtered at an avarage body weight of 35.4 kg (± 1.5 kg). Animals fed 30% roughage diet showed the highest weights and carcass yields. The percentages […]

It was evaluated the performance and the carcass characteristics of 36 non-castrated male lambs, Santa Inês purebreed and crossbreeds from Dorper × Santa Inês and Texel × Santa Inês, managed in three different systems (intensive, semi-intensive and extensive), slaughtered at 38.41 ± 1.24 kg. It was observed the highest weight gain for lambs reared in intensive system, which also showed the greatest carcass yield. The management systems did not influence carcass measures of animals in intensive system much because of […]

The objective of this work was to evaluate the effects of supplementation with nitrogenous compounds on intake and digestibility in cattle under grazing during dry season. It was used five Holstein × Zebu steers with average initial live weight of 236 kg, kept in five Brachiaria decumbens Stapf. paddocks (0.34 ha). The experiment was carried out according to a 5 × 5 Latin square design, with five supplementation levels and five experimental periods. The supplementation levels were the following: 0; […]

The objective of this study was to evaluate the characteristics of the carcass, tissue composition in the section between 9th and 11th ribs, centesimal composition of Longissimus dorsi muscle and the proportion of the non-carcass components of non-castrated male lambs, fed in feedlot with diets containing 1.49, 1.55, 1.62 and 1.68 Mcal of net energy/kg of dry matter. Diets were composed by corn silage as the roughage and the concentrate was composed by a commercial ration and the energetic supplement […]

It was evaluated the effects of metabolizable energy (ME) and digestible lysine (dLYS) densities on performance and body composition of weaned piglets. The study used 114 piglets weaned at 7.4 ± 0.80 kg, out of which 108 were allotted in the nursery and 6 were slaughtered on the weaning day to determine comparative data of body chemical composition. Six nutrients densities were stipulated from a previous study based on the highest nitrogen retention, maintaining the following ME:LYS relationship in the […]

The experiment was carried out to evaluate the effects of diets with different levels of crude protein (CP) and lysine (LYS) on characteristics of performance, egg internal quality, and nitrogen balance/retention. It was used 160 Hisex White laying hens at 48 weeks of age, individually accomodated in a complete random design in a 4 × 2 factorial scheme with four levels of crude protein (12, 14, 16 and 18%) and two levels of lysine (0.85 and 1.00%), totalizing eight treatments […]

A total of 1440 male broiler chickens from 8 to 21 days old was assigned to two experiments to evaluate the physical form of diet, use of enzymes and nutritional levels of corn-soybean meal based diets. A completely randomized design as a 2 × 2 × 2 factorial scheme, two physical forms of diet (meal or crushed), with or without enzimatic complex (amylase, cellulase and protease) and two nutritional levels (95 or 100% of the recommendations), was used. In the […]