ABSTRACT – The objective of this work was to determine the best level of replacement of corn by wheat with 0 and 9% of germinated grains (GG) in broiler chicken diets. A mashed diet (MD) at the initial phase (0 to 21 days), crumbled diets (CD) at the growing phase (21 to 35 days) and pelleted diets (PD) at the final phase, (35 to 42 days) were used. A randomized block design with five treatments and 12 replicates with 26 […]

ABSTRACT – A field experiment was conducted to determine the effect of acid soil correction, on the control of the sapé (Imperata brasiliensis), a grass type weed of pasture. A molasses grass (Melinis minutiflora) pasture in a red-yellow latosol, having a high proportion of “sapé” was used. Treatments consisted of five levels of dolomite limestone (0, 1, 2, 4 and 6 t/ha) incorporated by hand using a garden tool to the top 20 cm of soil following a mechanical tillage […]

ABSTRACT – The chemical composition and in situ dry matter (DM) and neutral detergent fiber (NDF) of bulky fraction (stall and sheets) degradation of 28 corn hybrids in 1996, and 21 hybrids, in 1997, were studied to establish the correlation among the analyzed factors. From the 21 hybrids selected in 1997, 13 were part of the experiment in 1996. The model for the evaluation of in situ DM degradation kinetics (McDonald, 1981), and the model to analyze the in situ […]

ABSTRACT – This experiment was carried out to determine the endogenous fecal losses of P and the effect of phytase on the biological availability of P in the diets and in the whole rice meal (WRM) for growing swines, by means of the isotopic dilution technique. The barrows were allotted to a complete randomized experimental design, with four treatments and three replicates. The treatments consisted on two diets without WRM (with or without 1250 FTU [Unit of Phytase Activity]/kg diet), […]

ABSTRACT – The objective of this work was to evaluate the electroejaculation applicability for artificial insemination as well as the ejaculatory potential of each Macrobrachium rosenbergii adult male morphotype. Electrical stimuli were applied to 48 newly pond – reared individuals of freshwater prawn for a better comprehension of each one’s reproductive behavior: the blue claw males (bc), sexually active and dominant; the orange claw (OC), sexually inactive, and the small ones (SM), with opportunist behavior, succeeding to copulate only if […]

ABSTRACT – Sixty-nine lambs from the crossbreeding Corriedale or Polwarth ewes with Suffolk, Ile de France rams or from the same ewe breed were used to evaluate their performance and carcass characteristics. Lambs were maintained under grazing until weaning time (60 days), then were confined for 90 days and fed corn silage and concentrate based diet. A completely randomized design in a factorial arrangement was used. The use of meat type rams on fine wool ewes did not affect lamb […]

ABSTRACT – This experiment was conducted to evaluate the total dry matter (DM) production, leaf/stem ratio, percentage of leaf and stem and nutritive value of the elephantgrass (Pennisetum purpureum Schum.) cultivar Roxo under four cutting ages (40, 60, 80 and 100 days) from July of 1994 to December of 1995 in the wet land region of the Paraíba State. The cultivar was stablished in plots of 3,0 x 5,0 m and plant spacing of 0,70 x 0,80 m, using a […]

ABSTRACT – This experiment was conducted to evaluate the performance in feedlot finishing period of steers with genotype of 100 Hereford (H), 62/38 H Nellore (N), 50/50 HN, 25/75 HN. Twenty-four steers, twenty months old, feedlot confined by 126 days, were used. The diet with 12.7% of crude protein, was constituted by 57.5:42.5 forage to concentrate ratio on dry matter (DM) basis. The forage was corn silage + chopped sugar cane (relation 1:1). The regression was significant for the average […]

ABSTRACT – This work was conducted to evaluate the effects of different concentrate levels on the liquid passage rates, using Co-EDTA, and particulate, using ytterbium chloride and Cr-mordant, and the in situ ruminal degradation kinetics of dry matter (DM) and crude protein (CP). Five rumen and abomasum fistulated bull Holstein calves, with an initial average age of 5.8±0.7 months and initial average of 107.4±11.0 kg LW were allotted to a 5×5 Latin square design (treatment x period). The animals were […]

ABSTRACT – The research was carried out to determine body composition and calcium and phosphorus requirements of Santa Ines lambs. Eighteen entire male lambs with average initial live weight of 15 kg were used. The animals were allotted to three groups: six animals were slaughtered at the beginning of the experiment, to access the amount of calcium and phosphorus present in the body, as reference animals for the comparative slaughter technique. Six animals were ad libitum fed and six were […]