The objective of this research was to study the variation of total solids in bulk tank milk samples in 32,590 herds of Paraná, Santa Catarina and São Paulo states, in Brazil. A total of 257,540 bulk tank samples collected between January 1999 and November 2001 were analyzed at the Central Laboratory of the Programa de Análise dos Rebanhos Leiteiros do Paraná (PARLPR) of the Holstein Association of the state of Paraná. Least Square Means Method procedures were used to study […]

The domestication of Podocnemis expansa (Gigant Amazonian turtle) with commercial purpose it was implanted in Brazil in 1992. However, a lot of subjects about handling, nutrition, sanity and mainly reproduction are still obscure these animals. The objective of this study was evaluated the effects of crude protein concentration and source on body weight of Podocnemis expansa. The turtles (n=480) were transferred to Setor de Piscicultura EV/UFG. Six animal groups (80/each) were put in water tanks of 500 liters. Five groups […]

An economic evaluation was accomplished of two experiments with intensive feeding systems for rearing of beef heifers weaned with 60-90 days. In experiment 1, the heifers reared in Pearl Millet pasture, exclusively under grazing (PAST1); supplemented with milled corn grain (PAST1/C) or supplemented with pellet citric pulp (PAST1/P). In experiment 2, the heifers were reared in Oat plus Italian Ryegrass pasture without supplementation to the animals (PAST2); supplemented with milled corn grain (PAST2/C) or supplemented with soy hull (PAST2/H). With […]

The physical-mechanic industry characteristics of 22 crossed goat leathers from native does mated with Anglo Nubian (AG) and Boer (BO) bucks were studied to evaluate the leather quality by analysis of tension and tear resistance. Animals were slaughtered at average of 260 days of age and 22.0 kg of live body weigth. After skinning, the pelts were weighed, conserved in brine and salted and classified by quality before the chromium-tanned. To evaluate the tension and tear resistance assays, from the […]

This work aimed to evaluate the physical-mechanic characteristics of crossed sheep leathers from hairy tropical crioula ewes mated with Texel wooly breed (TE) and Santa Inês (SI) hair tropical breed rams. Twenty two skin were evaluated from male sheep slaughtered at average of 240 days of age and 21.9 ± 4.4 and 20.9 ± 3.4 body live weight, respectively for TE and SI. After skinning, pelts were weighed, conserved in brine and salted and classified by quality before the chromium-tanned. […]

The objective of this experiment was to evaluate the effects of different dietetic fiber physical effectiveness on the retention time and apparent digestibility of lactating dairy cows. Ten Holstein cows (average 550 kg of live weight) were allotted to a switch back experimental design in three successive periods. The animals were individually housed in a tie stall and fed with total mixed rations constituted by Tifton hay (50.4%) and concentrated (49.6%). The Tifton hay was ground in commercial miller with […]

The objective of this study was to evaluate the meat centesimal composition of Santa Ines pure breed and Santa Ines vs Texel crossbreed lambs, slaughtered at different body weights. Thirteen males and fourteen females from both breeds were selected. The muscle biceps femoris was used to determine water, crude protein, crude extract and minerals contents. The experiment was arranged randomly, with 16 traits in a 2x2x4 factorial scheme with two genetic groups, two genders (14 males and 13 females in […]

The intake, digestibility, ruminal pH and ammonia concentrations and passage rate were evaluated in steers fed corn silage (CS) and Tifton 85 bermudagrass hay (T85H)-based diets, at different forage proportions. Four rumen fistulated steers with 523 kg of live weight were used in a 4×4 latin square design, and fed diets containing 60:40 forage:concentrate proportions in dry matter basis. The forage portion consisted of: 100 T85H:0 CS; 67 T85H:33 CS; 33 T85H:67 CS and 0 T85H:100 CS. The dry matter […]

Thirty-six young bulls (12 Nellore, 12 ½ crossbred Holstein x Nellore, and 12 crossbred ½ Caracu x Nellore) were used to evaluate weight gain, feed conversion, ingestion capacity and apparent digestibility of various nutrients. We use growing and finishing animals. The growing animals had initial weight of 205 kg, and the finishing ones, initial weight of 310 kg. The animals were fedlot to reach the weight of 310 to 330 kg for the growing animals and 450 to 480 kg […]

Eight Jersey cows with an average live weight of 420 kg, yielding around 20 kg of 3.5% FCM in early lactation (around the peak of lactation) were used in a trial whose objectives were to evaluate rice bran as fat source associated with oil or tallow in iso-proteic, iso-fibrous and iso-lipidic diets on the apparent digestibility of nutrients. Four treatments were used: CON concentrate without fat addition; BPF- concentrate with “by pass” fat; RBO- concentrate with rice bran + rice […]