The objective of this work was to study the effect of the administration of products based on sodium monesin or propolis LLOSB3 and LLOSC1 in two concentrations (B and C, in which B was less concentrated than C) and two alcoholic extractions (1 and 3, in which 1 was less concentrated than 3) on intake, total and partial digestibility, and ruminal characteristics in buffaloes fed diet based on roughage. It was used four castrated crossbred buffalo with average weight of […]

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% […]

In order to evaluate the effect of environmental temperature on ruminal fermentation and on mineral levels of growing ruminants, it was used 12 male calves (initial average weight 82.9 ± 7.7 kg, 100 days of age), were employed in a randomized block design (by weight) experiment, with repeated weight measurement and two environmental temperatures: thermoneutral (24ºC) and heat-stressed (33ºC), during 38 days. The animals exposed to 33ºC presented lower dry matter ingestion, lower T3 (triiodothyronine) serum level, higher ammoniacal nitrogen […]

The effects were assessed of two energy sources in concentrate (ground grain corn vs. citrus pulp) and two nitrogen sources (soybean meal vs. urea) on rumen metabolism in four buffaloes and four zebu cattle (Nellore) with rumen cannula and fed in a 4 × 4 Latin square design with feeds containing 60% sugar cane. Energy supplements had no effect on the rumen ammonia concentration in cattle, but ground grain corn promoted higher ammonia level than citrus pulp in buffalo. Urea […]

The effects of diets with increasing ground corn grain levels (0, 22, 37 and 49% in the dry matter) substituting coast-cross hay, with different protein:non-fibrous carbohydrate ratios (CP:NFC = 1.01; 0.39; 0.33 and 0.27) were assessed on buffalo ruminal metabolism. Four rumen fistulated buffaloes were used kept in a 4 × 4 latin square design, to collect liquid ruminal samples, collected in each experimental period (28 days) at 0, 2, 4 and 8 hours after feeding. In general, the buffalo […]

The objective of this study was to evaluate the effects of feeding sugarcane bagasse, obtained by extraction of sugar using diffusion (BINdif) or conventional milling (BINmoa) method, as a fiber source associated with bagasse treated under pressure and steam (BTPV) on nutrient digestibility and ruminal characteristics in beef cattle. Four Nellore young bulls (380 kg BW), fitted with ruminal cannula, were assigned to a 4 × 4 Latin Square design. Combination of bagasse in a 50:50 (concentrate:roughage) experimental rations were: […]

This research was to evaluate the effect of Leucaena (Leucaena leucocephala) and yeast (Saccharomyces cerevisiae) in diets for bovines on ruminal metabolism, including pH, volatile fatty acids, and ammonia and methane production. Four crossbred male cattle (800 kg LW) rumen cannulated were distributed to a 4 × 4 Latin Square design, in 2 × 2 factorial arrangement, composed by two levels of Leucaena (20% and 50% DM) and coast-cross grass hay, with or without yeast. No differences were observed in […]

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 objectives of this study were to evaluate the effects of sodium monensin supplied as a conventional form or as a controlled release capsule (bolus) on ruminal fermentation profile of bovine fed low nutritive value forage, supplemented or not with non-protein nitrogen. Twelve rumen-fistulated cows (736 kg of BW) were allocated in blocks, in function of body weight, using two successive 28-day periods (24 experimental units). The treatments were arranged as a factorial 3 x 2, where two forms of […]

The objective of this trial was to evaluate the increasing levels of soybean oil (0, 1.5, 3.0, 4.5, 6.0, and 7.5% of diet dry matter), ethanolic extract of propolis (0, 1.0, 2.0, 4.0, 8.0, and 12.0 mL/animal/day) and ground crude propolis (0, 0.5, 1.0, 2.0, 4.0, and 6.0 g/animal/day) on intake and ruminal metabolism (pH, ammonia N, VFA, and specific activity of ammonia production) in dairy goats. Six ruminally fistulated female Alpine goats were used in a completely randomized design […]