Twenty Hampshire Down, 24 Santa Inês and 36 crossbred Bergamácia x Corriedale lambs, slaughtered four liveweights (28, 32, 36 and 40 kg), were compared in relation to the meat sensorial traits. These animals were weaned at 60 days of age and full fed in feedlot with a diet composed by hay (35%) and concentrate (65%). After the slaughter and carcass cooling, longissimus dorsi muscle was taken off to the sensorial tests. There was not liveweight effects on the evaluated sensorial […]

This experiment was conducted to evaluate the effect of two levels of soybean hulls and three sources of protein on the total and partial rumen and intestinal digestion. Six Holstein-Zebu steers averaging twelve months of age and 229 kg BW were fistulated in the rumen and in the abomasum and distributed in a 6×6 Latin square and fed ad libitum individually. The consumption and the total and partial digestibility of the nutrients were evaluated. There was no effect of the […]

Four ruminally fistulated Holstein, distributed in randomized blocks and fed with coastcross grass, were used. They were supplemented with 2 kg of concentrate containing ground soybean, put through the rumen fistula daily, at 7 a.m. and 6 p.m. Nylon bags were incubated into the rumen of each animal, and contained samples of each of the following feed: ground soybean (S); low fat ground soybean (LFS); ground low trypsin inhibitor soybean (LTIS); ground low fat and low trypsin inhibitor soybean (LFLTIS); […]

Three blood constituents in eight crossbred Saanen goats bred in two systems ¾ pasture (S1) and semi-confinement (S2) ¾ were analyzed. The animals were fed two different diets: 30% of the dairy requirements of net energy supplied by concentrate during all the lactation (R1), and 60% of the requirements from 3rd to 13th week of lactation and 15% from 14th until the end of lactation (R2). Blood samples were taken to evaluate glucose (Gl), hemoglobin (Hb), and hematocrit (Ht) levels. […]

The experiment was conducted with the objective to evaluate the performance of feedlot finished calves, fed with silages of AG-5011 corn hybrid harvested with different cutting height: low cut (20 cm) and high cut (42 cm). Twelve Braford calves with an average age of seven months and average live weight of 209 kg, were used. The feedlot period was 126 days, divided in two periods of the 63 days. The roughage:concentrate ratio was 60:40 and 50:50 for the first and […]

The objective of this work was to study the effect of recombinant bovine somatotropin (bST) utilization on milk production from Murrah buffaloes. Twenty eight multiparous Murrah buffaloes were used and divided into two homogeneous groups of 14 animals, receiving the following treatments: Group 1 ¾ Control (salt solution) and Group 2 ¾ 500 mg of bST/head every 14 days during 7 months. Buffaloes treated with bST presented increase of 48.52%, 32.80% and 32.80% on total milk yield, adjusted to 4% […]

The experiment was run at the Agronomic Experimental Station of the Federal University of Rio Grande do Sul, located in the district of Eldorado do Sul, Brazil. The objective of the study was to evaluate the effect of the date of early (01/05/99) or conventional (03/26/99) weaning on the reproductive performance of multiparous beef cows during two mating seasons, 98/99, and the subsequent, 99/00. Fifty cows had their calves weaned with an average age of 91 days old and a […]

Two experiments were conducted with the objective of evaluating the use of high- moisture corn silage for growing horses. In the first experiment 12 male foals, 11 months old, with live weigth of 232.17±10.22 kg, were used in a digestibility trial to determine nutritional feeding value of high moisture corn silage. Two diets were used, a reference diet and one test diet, in which high- moisture corn silage replaced 25% of reference diet on dry matter basis. Total feces collection […]

The objective of this study was to determine the protein requirement for broiler breeder hens using factorial method. The requirement of crude protein for maintenance (CPm) was determined using nitrogen balance technique in metabolism assay. The birds were fed with four protein levels in order to get a positive, a close to zero and a negative nitrogen balance. To determine the crude protein weight gain requirement (CPg), two experiments were carried out. The first was calculate to determine the net […]

The objective of this study was to evaluated a crude protein requirement equation elaborated for broiler breeders. The experiment was conducted with 600 31-weeks old Hubbard HI-Y broiler breeders in a completely randomized experiment with three treatments and five replications. The treatments were: T1- Crude protein supply according to lineage recommendation manual (control), T2 ¾ Crude protein supply according to a prediction equation adjusted in function of the performance data of the standard treatment, and T3 ¾ Crude protein supply […]