This work was carried out with the objective to evaluate the effects of different levels (0.0 20.0, 30.0 and 40.0%) of whole cottonseed (Gossypium hirsutum L.) of the diet (% DM) on performance and nutrient digestibilities of feedlot Santa Inez sheep. Twenty-four sheep with average initial and final body weight of 19.0 and 32.2 kg, respectively, and allotted to a completely randomized design, with four diets and six replications. The dry matter intake in kg/day, %BW and g/kg0.75 was not […]

This work was carried out with the objective to evaluate the effects of different levels (0.0 20.0, 30.0 and 40.0%) of whole cottonseed (Gossypium hirsutum L.) of the diet (% DM) on carcass characteristics, cut yields and carcass muscularity of feedlot Santa Inez sheep. Twenty-four sheep with average initial and final body weight of 19.0 and 32,2kg, respectively, and allotted to a completely randomized design, with four diets and six replications. No effect was observed for the inclusion of whole […]

Twelve Nellore of three sexual categories (four heifers, four bulls and four steers) averaging 15 months of age and body weight of 235, 249, and 239 kg, respectively, were assigned to a completely randomized design with a 2 × 3 factorial arrangement (two levels of concentrate – 25 or 50% and three sexual categories) to evaluate intake, partial and total digestibility of nutrients, microbial protein synthesis and ruminal metabolism. The collection of ruminal fluid was done before and at 2, […]

The objective was to evaluate the body composition and net requirements of the macro minerals calcium (Ca), phosphorus (P), magnesium (Mg) and potassium (K) for weight gain in 5/8 crossbreed Holstein-Zebu cattle maintained in pasture Brachiaria decumbens Stapf. Sixteen animals were used with 10 month of age and 180 ± 19.95 kg BW. The treatments were open access to pasture and restricted grazing, both supplemented with commercial mineral salt. Four animals slaughtered in the beginning of the experiment to serve […]

The objective of this work was to evaluate the effect of the levels concentrate of the diet on meat quality of no castrated male kid Saanen goats. Fifteen male goat with initial 16 ± 0.3 kg BW and four months old were fed diets formulated with 80, 65 e 50 of concentrate up to the animals reached a final a 22 kg BW. The rations were formulated to promote a weight gain of 150g/anim.day. Centesimal composition, colour, texture, lipid and […]

The body composition and protein and energy requirements for growth of steers of four genetic groups finished in feedlot were evaluated in this experiment. comparative slaughter method was used in a completely randomly experimental design, with four treatments: Nellore (NE), ½ Aberdeen Angus + ½ Nellore (AN), ½ Canchim + ½ Nellore (CN) e ½ Simmental + ½ Nellore (SN). Forty-seven steers averaging 310 kg initial shrunk body weight (SBW) and 22 months were fed during 101 days in a […]

The objective of this trial was to study the effects of substituting corn silage by cassava foliage silage in the diets of non lactating, pregnant dairy cows. The levels of substitution of corn silage by cassava foliage silage were 0, 20, 40 and 60%. Intake and apparent digestibilities of dry matter, organic matter, crude protein, neutral detergent fiber, total carbohydrates, no fiber carbohydrates were evaluated, and pH and ruminal ammonia nitrogen before and 2, 4, 6 and 8h after the […]

The objectives of the present work were to determine nitrogen compounds flow into the abomasum, total carbohydrate and organic matter ruminal degradation, microbial efficiency, N-NH3 concentration and ruminal pH in cattle fed with diets based on corn silage, elephant grass silage and Tifton-85 bermudagrass hay. Six ruminal and abomasal fistulated cattle were utilized in a double 3 × 3 latin square. Abomasal digesta dry matter of and microbial dry matter flows were determined by use of indigestible neutral detergent fiber […]

The objective of this work was to evaluate the effects of the use of maniçoba silage (Manihot glaziovii Muell. Arg.) in different forage:concentrate ratio (30:70; 40:60; 50:50 and 60:40%) in milk composition, fatty acids profile and sensorial characteristics of Moxotó dairy goat milk. Eight multiparus goats were used, with approximately 60 days postpartum and about 44 kg on average, in a 4 × 4 Latin square design, with four treatments, four periods and 4 animals. Each period lasted 15 days […]

The experiment was carried out with the objective to evaluate the nutrient intakes and milk production and composition of lactating cows fed with rations containing different levels (0; 12,5; 25,0; 37,5 and 50.0%) of spineless cactus (Opuntia ficus Mill) and urea in substitution to the tifton grass hay. Five cows was distributed 5 × 5 Latin square experimental design. The dry matter and organic matter showed a quadratic effect with the inclusion of spineless cactus and urea. The crude protein […]