The objective of the study was to evaluate effects of microbially inoculated sunflower silage on total digestibility in ovines. Eight animals were assigned to a cross-over design, with two sub-periods (8 animals/treatment). Treatments were composed of sunflower silage (17.3% DM and 13.8% CP, on average) control or microbially inoculated with S. faecium plus L. plantarum (Pioneer 1174 product). Each experimental sub-period lasted for twenty-one days, where the last five were used for feces and urine collection. The inoculation decreased the […]

An experiment was conducted to evaluate the quality of the differed pasture of Brachiaria decumbens under grazing in the dry season. Samples were collected by the total harvesting (TH), hand-plucking sample (HPS) and Extrusa (EXT) collected using four Holstein-Zebu steers, with esophageal fistula. The samples were analysed for dry matter content (DM), crude protein (CP), ether extract (EE), mineral matter (MM), total (TC) and non-fibrous carbohydrates (NFC), neutral detergent fiber (NDF), neutral detergent fiber corrected for ash and protein (NDFap), […]

The accumulated productivity (ACP) is an index that takes into account the total weight of calves weaned per cow (in kg), total time required for producing the calves and age at first calving. A study was conducted to estimate the components of genetic and residual variance and estimate the heritability of ACP index. Data set consisted of 2,816 observations of Nelore cows raised in different farms of the Brazilian North and Northeast. These farms participate in the Genetic Improvement Program […]

The objective of this work was to study the carcass and meat characteristics of Hereford steers, finished in feedlot for 112 days and fed with 33% concentrate and 67% chopped sugar cane or corn silage diets, containing 12% of crude protein. Twelve steers, with 20 months of age, were used. Slaughter weight, hot carcass weight and cold carcass weight were higher for steers fed corn silage, being, respectively, 446, 230 and 227 kg vs 421, 211 and 208 kg, in […]

Fifty barrows (30.10 ± 0.48 kg to 60.08 ± 0.49 kg live weight were assigned to a completely randomized blocks design, with five digestible methionine plus cystine levels (0.448, 0.490, 0.531, 0.573, and 0.615%), five replicates and two animals per experimental unit, to evaluate the requirement of digestible methionine plus cystine The digestible methionine and cystine levels of the diet influenced the average daily gain that increased in a linear way. However, the linear response plateau model was what best […]

This work was conducted with the objective to study three concentrate levels in the diet in combination with silage of two sorghum silage hybrids, on the carcass and meat quality of crossbred steers with Charolais or Nellore predominance. Sixty animals were finished in feedlot from 20 to 22 months, with 322 kg of initial weight, and were allotted to completely randomized design 3 x 2 x 2 factorial scheme, according to three concentrate levels (25, 35 and 45% of the […]

Fifty hybrid gilts, with high genetic potential for lean gain and initial and final weight of 15.39 ± 0.59 and 30.93 ± 1.72 kg, respectively, were used to evaluate diet with different levels of lysine. An experimental design of randomized blocks, with five treatments, five replicates and two animals per experimental unit, was used. The treatments corresponded to a basal diet with 19% crude protein, supplemented with five levels of HCl-L-Lisine, that resulted in diets with 0.95, 1.05, 1.15, 1.25 […]

This work was conducted to determine the N-corrected apparent metabolizable energy (EMAn) of different carbohydrate sources for broilers from 1 to 7 days, and to evaluate the utilization of these ingredients in the diet of newly hatched broilers based and on live performance and on the gastrointestinal tract (TGI) development. Total excreta collection method was used in trial one, with 220 male chicks from 4 to 7 days, allocated to batteries in a completely randomized design with five treatments (a […]

This research was developed to evaluate the intake and digestibility of nutrients; feed/gain conversion (FC); average daily live weight (LWG), empty body weight (EBWG) and carcass (CG) gains; the carcass dressing percentage and the basic cuts percentage; the carcass length (CL); the loin eye area (LEA) and the subcutaneous fat thickness (SFT) of Zebu steers, with initial average live weigth of 270 kg, fed with 5, 35 e 65% of concentrate, in feedlot. The dry matter and organic matter intake […]

With the purpose of re-evaluating seventeen pigeon-pea lines originated from accessions previously selected for favorable agronomic characteristics, experiments were installed in five locations of the State of São Paulo. The confirmation of those characteristics was necessary because the original accessions presented various degrees of mechanical mixtures and segregation and were submitted to purification process in pollination controlled conditions. In those trials, the lines were cut in several occasions to evaluate forage yield. Each time, it was determined the number of […]