Eighty six young bulls were used, divided into four genetic groups: Nellore (n=20), Canchim (n=17), ½ Canchim ×Nellore (NC) (n=25) and ¾ Canchim ×Nellore (TQ) (n=24). The animals were weighed every 28 days to evaluate the average daily gain (kg/day), dry matter intake (kg/day) and feed conversion. When the animals reached slaughter weight (450 kg) and fat thickness greater than 4 mm, were slaughtered to evaluate the rib eye area (cm2), subcutaneous fat thickness (mm), marbling, shear force, ether extract […]

The present work was aimed to evaluate the effect of mineral protein supplementation with addition of chromium attached to the organic molecule on the productive performance, carcass traits and beef quality in steers finished under grass conditions. For this, 18 Nellore and 18 F1 Brangus × Nellore steers were used, with 16 months of average initial age and slaughtered at 22 months, distributed equally into two treatment of mineral protein supplementation with and without addition of chromium attached to the […]

The objective was to evaluate the physical, chemical and sensory of buffaloes meat slaughtered in different periods of feedlot. Twenty castrated, hornless Murrah buffaloes with initial average age of 15 months old were slaughtered at 75, 100, 125 or 150 days of feedlot. After slaughter, the carcasses were identified and cooled for 24 hours. During the deboning, samples were taken from striploin between the 10th and 11st ribs for sensory characteristics analyses and cooking losses; between 11st and 12nd ribs […]

This experiment was carried out to evaluate the performance of steers of three genetic groups: Nellore (NN), ½ Guzerat × ½ Nellore (GN) and ½ Brahman × ½ Nellore (BN). Forty-one steers, 24 mo old, kept in pasture of Brachiaria grass. All animals were from the same herd and were raised under the same conditions and slaughtered at 3 years old. At the beginning of the experiment and at slaughter, Brahman-crossed animals were heavier than the animals from the other […]

Thirty-six Angus ´ Nelore crossbred young bulls averaging 8 month of age and 240 kg BW and fed diets with high moisture corn or sorghum during 172 days were allotted to two experimental treatments (where the main energy source of total diet was composed by high moisture corn – HMC or sorghum – HMS) to evaluate the differences on carcass and meat quality of young cattle. The experiment was analyzed as a completely randomized design. There were similarity for average […]

The objective of this trial was to evaluate the effects of castration and slaughtering age on subjective and instrumental characteristics of meat from Corriedale lambs raised on native pasture. Sixty male lambs (30 castrated and 30 intact) slaughtered at 120, 210 and 360 days of age were used in this experiment. The Longissimus dorsi muscle was used for all meat evaluations and analysis. No significant castration ´ slaughtering age interaction was observed for the studied variables. A significant slaughtering age […]

This study was conducted to evaluate the effect of pregnancy simulation (placement of 100 lead spheres in the uterus-LEAD) and ovariectomy (OVAE) on traits of carcass and meat of heifers finished in feedlot. Animals not pregnant and with intact ovary were used as the control (CTRL). Nineteen crossbred heifers (½ Nelore x ½ Red Angus) averaging 18 months of age and 257.8 kg of body weight were used. Animals were fed a diet containing (% DM): 41% of corn silage […]

This study was conducted to evaluate the effects of lead spheres placed in the uterus to simulate pregnancy and of growth promoter on carcass weight, carcass conformation, carcass and leg lengths, beef round and fat thickness, percentages of bone, muscle, and fat, and thawing and cooking losses. Twenty Murrah buffalo heifers averaging 20 months of age were randomly assigned to one of three treatments: control (non-pregnant heifers but with ovarian activity – NP), lead (100 lead spheres placed in the […]

The objective of this trial was to evaluate the effects of three concentrate protein levels (15, 20 or 25% CP) on measurements of carcass and Longissimus dorsi muscle, weights and yields of cuts, and chemical composition and tenderness of meat of Suffolk lambs in creep feeding. Fifteen single birth lambs were used in this study. Lambs were slaughtered when they reached a final body weight of 28 kg. After slaughter, carcasses were maintained in a refrigerator at 5ºC for 24 […]

The objective of this trial was to evaluate the carcass physical composition and meat qualitative characteristics of males of two categories, steers (slaughtered at 22.8 months old) and young steers (slaughtered at 15.2 months old), from two genetic groups, 5/8 Charolais (CH) 3/8 Nellore (NE) and 5/8NE 3/8CH, and to evaluate the relationship among the variables studied. The animals were fedlot finished until reaching 430 kg. The diet, roughage:concentrate ratio of 60:40 (dry matter basis), contained 10.25% crude protein and […]