Six half-bred ½ Holstein-Zebu steers, fistulated in the rumen and abomasum, were randomly assigned to two 3 x3 Latin squares (animal, ingestion regime – 1.5, 2.0 and 2.5% LW and period) to determine the intake and total and partial digestibility of total carbohydrates (CHO), neutral detergent fiber (NDF) and non fiber carbohydrates (NFC). Chromic oxide was used as a marker to determine the digestibilities. Animals were fed diet with 60% Tifton-85 bermudagrass (Cynodon spp.) hay and 40% concentrate mixture (corn […]

The experiment was carried out to evaluate the fermentation characteristics, Listeria sp. and molds occurrence on Tifton 85 silage no wilted, wilted for one and two hours and no wilted with or without citrus pulp (5.0 % of fresh forage). The samplings were taken at the opening of the silos (80 days after ensiling), 15, and 30 days after air exposition to evaluated dry matter (DM) content, chemical changes (pH, ammonia N, organic acids) and Listeria sp., and molds occurrence. […]

Two digestibility trials were carried out, to study the nutritional value of four types of pearl millet (BN2, Comum, Iapar and Iapar-Repasse), grounded through 3, 2, and 1 mm screen. The digestibility coefficient (DC) of gross energy (GEDC) and gross energy metabolization coefficient (GEMC) relative to 3 mm screen were: 63.09 and 61.20% (Comum); 71.57 and 69.66% (Iapar) and 67.39 and 65.60% (BN2). The GEDC and GEMC of COMUM were lower than IAPAR and both were similar to BN2. The […]

An experiment was carried out to in two steps (the first was hormonal treatments and the other the larvae grow up phase) to determine the best ontogenic periods for larvae of the Nile tilapia (Oreochromis niloticus) regarding the feminization hormonal treatments by immersion baths during 36 hours with a 2.0 mg solution of estradiol valerate17 (VE).L-1. One thousand and two hundred larvae of Nile tilapia, from the same reproduction bunch were used. Larvae were allotted to 24 0.5 L plastic […]

Heritability and genetic correlations coefficients in different levels of milk production and fat were evaluated in this study. A data set of 8,887 milk and fat records from 5,875 Holstein cows, sired by 1,125 bulls from 1984 to 2001 were used. Data were stratified in three levels according to the herd milk production, low (<6000 kg), medium (>6000 a <7500 kg) and high (>7500 kg). The (co)variance components were estimated by Restricted Maximum Likelihood Method including in an animal model […]

An study was conducted to evaluate the influence of reduction of crude protein (CP) levels and amino acid supplementation in diets on the performance of castrated swines (Landracex Large White) maintained in a termoneutral environment. Fifty crossbreed piglets (average initial body weight of 30.2 kg) were allotted to a completely randomized experimental design with five treatments (17, 16, 15, 14 and 13% CP) and five replications and two animals per experimental unit. Experimental diets and water were fed ad libitum […]

The effect of monensin on milk production, milk composition and body condition score of buffaloes cows in early lactation was evaluated. Twenty four Murrah buffalo cows were submitted to two treatments T1 (0 mg of monensin/buffalo cow/day) T2 (300 mg of monensin/buffalo cow/day) evaluated during the 150 first days of lactation. The total ration was composed by sorghum silage, elephant grass, and concentrate. The effect of monensin on milk production, milk composition and body condition score of buffaloes cows in […]

This work aimed to evaluate animal production and pasture variables with a management of levels of 350 and 600 kg/ha of green leaf lamina biomass (GLLB). Treatments were consisted of total forage mass of 617 and 1139 kg/ha of DM, respectively, lower than recommended levels for maximum animal performance. No differences were observed on total forage and green leaf blade daily accumulation rates, on total forage production, daily live weight gain, stocking rate and gain per area, which was near […]

The urea ammoniation (5.0% dry matter) effects in Brachiaria brizanta hay baled with two moisture contents (15 or 30% moisture), and three urease source (Brachiaria decumbens hay, elephantgrass (Pennisetum purpureum), leucena (Leucaena leucocephala)) was evaluated. The crude protein (CP), soluble nitrogen fraction (A), borate phosphate true protein fractions (B1 and B2), potentially degradable protein fraction (B3), acid detergent insoluble protein (C) were analyzed. The NDF, ADF, cellulose, hemicellulose and lignin contents and in vitro dry matter digestibility (IVDMD) were analyzed. […]

This work was carried out aiming to evaluate the nutritive value of byproducts of fruit processor. Byproducts of pineapple, west indian cherry (WIC), guava, passion fruit and melon were evaluated. Twenty sheep castrated males, with average weight of 34.5 kg, were assigned to a completely randomized design with five treatments (byproducts) and four replications. Dry matter intakes (DMI) of byproducts of guava, passion fruit and melon by the animals were similar but higher than WIC byproduct. The highest crude protein […]