This study evaluated the effects of the inclusion of a yeast culture (Saccharomyces cerevisiae 1026) on the parameters of ruminal fermentation of beef cattle. Ten rumen fistulated 1/2 Red Angus 1/2 Nellore steers confined in individual pens were fed a diet containing 50% sorghum silage and 50% concentrate (%DM) containing peleted soybean hulls, sorghum grain, urea and mineralproteic premix. A completely randomized design was used to compare diets with or without Saccharomyces cerevisiae (1 g/100 kg of live weight) on […]

The intake and digestibilility of the nutrients of diets containing palisade grass (Brachiaria brizantha cv. MG4) hay of low quality and different protein levels were evaluated. The evaluated treatments were control (only hay) and hay with crescent addition, by rumen infusion, of the mixture containing ammonium sulphate, casein end urea (0.5:1.0:4.5) in way to elevate in +2, +4, +6 and +8% the CP level in the diets. A Latin square experimental design with five levels supplementation, five animals and five […]

The effect of ammonization of elephant grass and the partial substitution of the standard concentrate based on corn and soybean meal by concentrates containing cocoa meal or palm cake on sheep performance was evaluated. A total of 18 Santa Inês male sheep, with average 22.6 kg BW, was allotted to a completely randomized design in a 2 × 3 factorial arrangment with three replications. The experimental period consisted of 77 days, with 14 days for adaptation and three periods of […]

The effects of cottonseed and sunflower oil supplementation on milk composition were tested using crossbred Moxotó goats. Experimental diets were as follows: control, without addition of oil; addition of 3% cottonseed oil; 5% cottonseed oil; 3% sunflower oil and 5% sunflower oil (%DM). Ten confined lactating goats were allotted to a double Latin square experimental design (5 × 5). Each period was comprised by 12 days of adaptation to the diet and three days of sampling in each period. Cottonseed […]

The objective of this research was to study the effects of enramycin and sodium monensin administration on dry matter intake, ruminal fermentation and alimentary behavior in bovine. Twelve non-pregnant and non-lactating cows (675 kg ± 63 of BW) were randomly assigned to three treatments: control group, enramycin treated group or monensin treated group. Animals received a diet containing 60% of concentrates (corn, soybean meal and minerals) and 40% of forage (sugarcane). Treatments were 20 mg/animal/day of enramycin and 300 mg/animal/day […]

The effects of energy levels in multiple supplements on productive performance and nutritional parameters were evaluated of finishing beef cattle grazing palisade grass (Brachiaria brizantha cv. Marandu), during the rainy to dry transition season. For the performance evaluation, 24 crossbred bulls, 18 month old and 330 kg of initial body weight (BW), were distributed to a completely randomized design, in four paddocks of 1.5 ha each. Four treatments were evaluated: mineral mix (MM) and corn and whole soybean grain based […]

The objective of this trial was to study the effects of enramycin and sodium monensin administration on total digestibility of diet nutrients and digestible dry matter intake in bovine. Twelve non-pregnant and non-lactating cows (675 kg ± 63 BW) were randomly assigned to three treatments: control group, enramycin-treated group or monensin-treated group. Animals received a diet containing 60% of concentrates (corn, soy bean meal and minerals) and 40% of forage (sugarcane). Treatments were 20 mg/animal/day of enramycin or 300 mg/animal/day […]

The differences on performance of young cattle fed diets with high moisture corn or sorghum were evaluated in two treatments, where the main energy source of the total diet was composed of high moisture corn (HMC) or sorghum (HMS). Ninety Angus ´ Nelore crossbred young bulls, averaging 8 month of age and 240 kg BW and fed during 172 days were allotted to two experimental treatments as a completely randomized design. No treatment effect on average daily gain, total weight […]

This work was carried out to evaluate the effect of four dietary urea levels (0, 0.65, 1.3, and 1.95% in dry matter – DM) on ruminal pH and ammonia-N, plasmatic urea nitrogen, urea fractional excretion, creatinine and urea excretions, as well as to evaluate endogenous urinary losses, by means of creatinine excretion, in steers of four genetic groups (Holstein, ½ Holstein-Guzera, ½ Holstein-Gir and Zebu). Animals were assigned to four 4 ´ 4 latin squares (genetic groups), with four animals, […]

The effects of the ionophore (sodic monensin) and of the probiotic (Saccharomyces cerevisiae + selenium + chrome) were evaluated in rations with 50:50% of forage:concentrate ratio on the total (TDC) and partial [ruminal digestibility coefficients (RDC) and intestinal (IDN)] nutrients digestibility coefficients. Three Murrah buffalos (Bubalus bubalis) and three steers Holstein (Bos taurus), with an of 477 ± 47 kg and 518 ± 56 kg of average weight respectively, and with ruminal and duodenal cannulas were used; the animals were […]