The objective of this study was to evaluate the effect of different true protein:non-protein nitrogen ratios in supplements on digestibility, microbial protein synthesis and nitrogen balance in grazing cattle during rainy season. Five crossbred Holstein × Zebu steers, averaging 335±35 kg of body weight and fitted with rumen and abomasum canullae were used. The treatments were: control (only pasture), and supplements based on urea, 2/3 of nitrogenous compounds from urea and 1/3 of nitrogenous compounds from albumin, 1/3 of nitrogenous […]

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% […]

The objective of this trial was to determine the intake and the total, ruminal and intestinal apparent digestibilidade of dry matter (DM) and its components: organic matter (OM), crude protein (CP), ether extract (EE), in neutral detergent fiber (NDF) and no-fiber carbohydrates (NFC) of the elephantgrass in different regrowth ages and to quantify the microbial protein production. Four crossbred steers fitted with ruminal and abomasal cannula were fullfed with elephantgrass and mineral salt. The experiment was evaluated considering the group […]

The objective of this trial was to evaluate ruminal, intestinal, and total tract apparent digestibilities of nutrients as well as metabolism of ruminal and nitrogenous compounds in supplemented finishing cattle during the drought to rainy transition season. Five Holstein x Zebu steers averaging 304 kg of live weight and 24 months of age located in five paddocks (0.34 ha each) of Brachiaria decumbens were used in this trial. The supplements fed (4 kg/animal/day) contained ground corn, whole soybean, urea, ammonium […]

It was aimed to study the intake and total and partial nutrients digestibilities in bovine. It were used five 165 kg growing Nelore bulls, rumen, abomasum and ileum fistulated. A randomized blocks design with four treatments and five collection periods was used. The treatments consisted of four concentrate levels (20, 40, 60 and 80%). The roughage used was Tifton 85′ Bermuda grass hay (Cynodon dactylon (L.) Pers.). The NDF and ADF intakes only presented linear reduction with the increase of […]