The intake, digestibility, ruminal pH and ammonia concentrations and passage rate were evaluated in steers fed corn silage (CS) and Tifton 85 bermudagrass hay (T85H)-based diets, at different forage proportions. Four rumen fistulated steers with 523 kg of live weight were used in a 4×4 latin square design, and fed diets containing 60:40 forage:concentrate proportions in dry matter basis. The forage portion consisted of: 100 T85H:0 CS; 67 T85H:33 CS; 33 T85H:67 CS and 0 T85H:100 CS. The dry matter […]

Weights at birth, at weaning and monthly from 8 to 19 months of age of the 11 genotype identified by combination of polymorphic RFLP’s of the genes kappa-casein-HinfI (CSN3): AA and AB, growth hormone-AluI (GH): LL and LV, and b-lactoglobulin-HaeIII (LGB): AA, AB and BB (G1=AALLAA, G2=AALLAB, G3=AALLBB, G4=AALVAB, G5=AALVBB, G6=ABLLAA, G7=ABLLAB, G8=ABLLBB, G9=ABLVAA, G10=ABLVAB e G11=ABLVBB) were used. Data were obtained from three genetic groups: ½Canchim-Nelore (CN), ½Angus-Nelore (AN) and ½Simmental-Nelore (SN), born in 1998 and 1999 in Southeast […]

This work was carried out to evaluate angular measures of foals, from birth to 12 months age, and mature animals of the Mangalarga Marchador horse. Eleven angular measures of 98 foals, 55 males and 43 females, were taken on the birth day and at each thirty days up to complete 12 months of age. Results of measures were submitted to analysis of variance and mathematical model included effects of sex, region, nutritional management, herd, month and year of birth. The […]

For this study, after editing the data, 87,372 Nelore cattle visual scores of conformation (C), precocity (P) and musculature (M) at weaning were utilized. The aim of this work were to study the effects of age of dam at calving, Julian date of birth and age of calf at weaning on conformation, precocity and musculature visual scores and to estimate adjustment factors for these effects. The model included fixed effects of contemporary group (herd, paddock, year and month of birth, […]

The research was carried out in a greenhouse, at the UFRPE, from October 2000 to May, 2001. The objective was to evaluate the effect of phosphatic fertilization and harvest systems on the chemical composition and in vitro digestibility of the “capim-de-raiz” (Chloris orthonoton Doell). The treatments was obted in a factorial arrangement 3 x 2 x 2, with three rates of phosphorus fertilizer (0, 100 and 200 kg ha-1 of P2O5), two cut frequencies (30 and 40 days) and two […]

The objective of this experiment was to evaluate the effects of different dietetic fiber physical effectiveness on the retention time and apparent digestibility of lactating dairy cows. Ten Holstein cows (average 550 kg of live weight) were allotted to a switch back experimental design in three successive periods. The animals were individually housed in a tie stall and fed with total mixed rations constituted by Tifton hay (50.4%) and concentrated (49.6%). The Tifton hay was ground in commercial miller with […]

An economic evaluation was accomplished of two experiments with intensive feeding systems for rearing of beef heifers weaned with 60-90 days. In experiment 1, the heifers reared in Pearl Millet pasture, exclusively under grazing (PAST1); supplemented with milled corn grain (PAST1/C) or supplemented with pellet citric pulp (PAST1/P). In experiment 2, the heifers were reared in Oat plus Italian Ryegrass pasture without supplementation to the animals (PAST2); supplemented with milled corn grain (PAST2/C) or supplemented with soy hull (PAST2/H). With […]

A completely randomized experiment was run to evaluate the effect of methionine and lysine supplementation on the pejerrey (Odontesthes bonariensis) fingerlings performance. Four treatments were compared: Diet T1 control, with available contents mehionine and lysine in products used in formulation of diets; Diet T2 supplemented with 4.76% of DL- methionine; Diet T3 supplemented with 4.76% of L- lysine and Diet T4 with 4.54% of DL methionine and 4.54% of L lysine. Resulted showed that diets containing methionine were more efficient […]

Ninety-six young beef males were allotted to a completely randomized design in a 4×3 factorial scheme, four genetic groups, Nellore (N), ½ Simmental ½ Nellore (SN), ½ Red Angus ½ Nellore (AN) and ½ Red Angus ¼ Simmental ¼ Nellore (ASN), and three sex conditions (SC), intact (I), castrated (C) and castrated plus Synovex S ® implant (CS). Males were castrated at six months of age, and feedlot started two months later, with the animals being fed with a 70% […]

To establish the measures that best define the quality of the carcass of swine, data of lean meat yield (MY), fat yield (FY), dressing percentage (DP), carcass length for the Brazilian Method of Carcass Classification (CLBM), carcass length for the American Method of Carcass Classification (CLAM), average backfat thickness (ABT), backfat thickness 4 cm from the dorsal mid-line (P1), backfat thickness 6.5 cm from the dorsal mid-line (P2), backfat thickness 8 cm from the dorsal mid-line (P3), loin eye area […]