It is necessary to carry out a study that focuses on the morphometrical parameters of the gastrointestinal tract (TGI), which can provide subsidies for getting knowledge about the digestive processes that happen into the animal organism. Bimontly, it was sampled 100 P. expansa hatchlings, which were randomly captured from eight commercial flocks located at the county of Diorama, State of Goiás/Brazil. The experiment was conducted with animals of 23 to 29 months of ages, from which the biometrical measures were […]

This experiment was carried out in order to evaluate performance, nitrogen and dry matter balance and morfometrical measures of broilers raised with different levels of protein and energy on pre-starter phase (1 to 7 days of age). In a completely randomized design, 336 one-day old chicks were allotted in a completely randomized design in a factorial scheme 2 x 3 (metabolizable energy 2,850 and 3,000 kcal/kg and crude protein – 20, 23 and 26%) with four replicates with 14 birds […]

Twelve Bos indicus (Nellore) embryo donors were confined receiving 25 kg maize silage and 2.5 kg concentrate supplement per day. The proteic supplements used were SOYA (S), SOYA+UREA (S+U) and UREA (U). After 20 day, embryo donors were superovulated and their embryos collected and cultivated in vitro until eclosion. There was no significant statistical difference between the three groups in total number of structures collected (4.17, 8.42 and 7.00), number of viable embryos (2.25, 3.50 and 4.33), oocytes (1.42, 3.92 […]

An experiment was carried out in the Abatedouro São Salvador, Goiás, Brazil, in order to evaluate the performance and carcass characteristics of four different broiler strains. The performance and carcass characteristics of Ross, Cobb, Avian Farms and Arbor Acres chickens were measured until 41, 44 and 48 days of age and the carcass parameters were measured at 41 and 44 days of age. Broilers were allotted in an randomized block design in a 4×2 factorial scheme (strains x sex) with […]

The experiment was conducted to evaluate the effects of moisture levels at harvest and drying temperatures of corn on its chemical composition and apparent metabolizable energy corrected to zero nitrogen retention (AMEn) to broiler chickens. The corn was harvested with 35%, 25%, 18%, 15.3% and 14.3% of moisture and submitted to drying temperatures of 100, 70 and 40 ºC. The moisture levels of 15.3% and 14.3% of corn were not submitted to drying and the last value represented the treatment […]

The localization of acid phosphatase at distal small intestine and its morphology were studied f0rom birth to intestinal closure from fifteen male dairy calves aged: unsuckled neonatal, three hours after colostrum ingestion and three days old. At birth, the presence of a large vacuole was found and it expanded all over the epithelial cells cytoplasm at distal jejunum and ileum. For colostrum fed calves, ingested material could be observed in the vacuole. The phosphatase acid reaction was detected in the […]

An experiment was carried out to evaluate morphophysiological aspects of Mombaçagrass growth after defoliation. Defoliation treatments were performed when the number of green completely expanded leaves on main tiller had stabilized around 3. Four defoliation treatments were imposed to the main tiller: T1 – no defoliation, T2 – total defoliation, T3 – removal of the last expanded leaf and T4 – removal of the two lowest expanded leaves. In all cases primary tillers were completely defoliated by cutting at 8 […]

The snooks Centropomus parallelus are fishes with high commercial value and social and economic importance. They have potencial to be used in aquaculture, as they accept to be confined and to be fed with ration. The knowledge of the nutritional requeriments of the snook is basic to produce especific ration. Centropomus parallelus fed soybean meal, oat meal and rice meal, tested as ration ingredients with 0.5% to chromium oxide (Cr2O3), as a external marker, were used to determine the digestibility […]

The performance of 192 weaned Nelore steers grazing on Brachiaria brizantha pastures(Teste), or supplemented during the dry season (Seca), all year around (Ano) or with free access to a leucaena bank (Banco), was evaluated in a random block design with four replications. The dry season supplement had 46.9% CP, 70% rumen degradable, and the wet season supplement, 43.9% CP, 60% degradable. During the dry season, the animals of Ano and Seca showed higher gains than Banco and Teste (.534 and […]

Sorghum Agroceres 2005 (35.9% DM) was ensiled in 16 plastic experimental silos, forming four treatments: control, Sil-All (Streptococcus faecium, Pediococcus acidilactici, Lactobacillus plantarum, amylase, hemicellulase, and cellulase), Silobac (L. plantarum, S. faecium, and Lactobacillus sp), and Pioneer 1174 (S. faecium and L. plantarum). Silos were opened 120 days after ensiling and silage was sampled to proceed chemical analyses. Sil-All, Silobac and Pioneer decreased dry matter content and increased ethylic alcohol concentration and DM losses compared to control. Sil-All increased NDF […]