The source of phosphorus of better quality for use in the pig feeding and that cause less environment impact by the excretion of phosphorus in the enviroment was evaluated. Twenty-one male pigs weighting 34.94 ± 2.88 were fed corn-soybean meal based diets supplemented with different P sources: control without P supplementation P (Cont), dicalcium (FBC), monodicalcium (MBC), triple superphosphate (ST), simple superphosphate (SS), Catalão rock (Rocha) and phosphoric acid (AcF). The experiment was designed to evaluate the P availability and […]

The effects of aflatoxins and one adsorbent (Sodium and calcium aluminum silicate) on silver catfish (Rhamdia quelen) fingerlings were evaluated in this study. Three hundred and sixty fish, with initial weight of 4 g, were raised in a thermo-regulated recirculation water system, during 90 days. Twelve treatments with four aflatoxin levels in diet (0, 150, 250 and 350 µg/kg), with and without adsorbents (0, 0.3 and 0.6%) were tested in three replications. The results showed that the negative effect of […]

The objective in this work was to evaluate the chemical characteristics and the fatty acids composition of beef loin (Longissimus muscle) of young bulls, steers and heifers of Canchim breed. The animals were finished in feedlot system and fed two experimental diets, one with corn silage and concentrate (SIL) and the other with sugar cane, as exclusive roughage, and concentrate containing sunflower grains (CNA). Differences were not detected in relation to moisture, protein and mineral contents between diets or sexual […]

This study aimed to analyze genetic diversity in a conservation nucleus of Santa Inês sheep using thirteen microsatellite loci on chromosome 20 (where the Sheep Major Histocompatibility Complex – Ovar-MHC – is found). Seventy three animals from one herd born from 2004 to 2006 were evaluated as a principal nucleus. Seventy one animals from two other herds were used as control comparison. There was a reduction in heterozygosity over the years in relation to the whole population. This may be […]

This study was carried out to evaluate the effects of increasing metabolizable energy and soybean oil levels on the egg chemical composition, total lipids and cholesterol contents and fatty acids profile in the egg yolk. Three hundred and sixty 29 week-old Bovans Goldline semi-heavy commercial layers were used during three periods of 28 days. A completely randomized design were used in a 3 × 3 double factorial arrangement with three soybean oil levels (1, 2 and 3%) and three metabolizable […]

The effect of alfalfa hay processing (Medicago sativa L.) and the addition of soybean oil in diets on the total dry matter digestibility, organic matter, crude protein, ether extract, neutral detergent fiber and acid detergent in horses was evaluated. Four crossbred male foals with approximately 14 months of age and 197.25 kg were used and assigned in a (4 × 4) Latin square design with a factorial arrangement (2 × 2) composed of two alfalfa haying forms (cubes or branches) […]

This worked aimed to evaluate the effects of deferring and grazing periods on the tiller population density, morphological component mass of forage and falling index on Brachiaria decumbens cv. Basilisk pastures. Two assays were carried out: first year and second year. Subdivided plots were used according to a randomized block design with two replicates. The treatments were composed of combinations of deferred periods and grazing periods. In the first year, 103, 121, 146 and 163-day deferring periods were used; and […]

One thousand and fifteen commercial male broilers from 37 to 49 days of age were used to evaluate different digestible lysine levels. A completely randomized trial was used, with five treatments (0.90, 0.95, 1.00, 1.05 and 1.10% of digestible lysine, respectively), seven repetitions and 35 experimental units, with 29 birds each. Lysine levels were added in isoenergetic (3,250 kcal of ME/kg) and isoproteic (18% of CP) corn and soy meal rations. Weight gain, feed intake, feed:gain ratio, carcass characteristics and […]

The objective of this work was to study the calcium metabolism in growing equines receiving diets with different calcium levels. Twelve male were used, with average age of twelve months and average alive weight of 221,0 kg. The treatments consisted of three diets, composed for increasing calcium levels (low = 0.15%-N15; standard = 0.45%-N45; high = 0.75%-N75), and standard phosphorus level (0.23%). Each animal was injected, through the right jugular vein, the volumes of a syringe, which corresponded to about […]

In order to allow using seeds from three interspecific elephant grass ×pearl millet hybrids (Original, Cutting and Grazing-types) to set pasture fields, it became necessary to analyze their performances in relation to storage conditions and controlled deterioration. Five moisture content levels and three storage temperatures (40, 50 and 65°C) have been tested for each hybrid. Seed sub samples for each moisture content and storage temperature combination were sealed in laminated aluminum foil packages and stored at those temperatures until complete […]