The objective of this paper was to evaluate the performance of calves fed liquid diets based on integral milk or fermented colostrum, with or without addition of soybean oil, with or without zeranol application, as growth promoter. The calves development was evaluated from 15 to 60 days of age and the studied variables were: body weight (BW), withers height (WH) and heart girth circumference (HGC) at 60th day; solid feed intake (SFI); and weight gain (WG), withers increment (WI) and […]

The carcass physical composition, meat quality and cholesterol content in the Longissimus dorsi muscle of 24 Red Angus steers finished in feedlot with different weights were evaluated. Steers average age and weight at the beginning of the feedlot were, respectively, eight months and 189 kg. The number of days on feed was 114, 144, 173 and 213 days to reach the slaughter weight (PA) of 340, 373, 400.6 or 433.6 kg. The carcass composition was affected by the slaugther weight, […]

This work aimed to evaluate the effect of the sorghum growth stage on the silage chemical composition, intake milk production and fat compared with corn silage to dairy cows. The experiment was carried out at the “São Bento do Una” research Stattion, from IPA, located in “São Bento do Una”, Pernambuco, Brazil. Nine holstein lactating cows were distributed in three Latin squares design. The squares were formed according to milk yield and the lactating order and consisted of three cows […]

Feedlot parameters of two categories of cull females, cows and heifers, fed two diets, with and without monensin, were studied. The daily amount of monensin supplied was 150 mg/animal. The roughage:concentrate ratio was 65:35. The roughage used was sorghum silage. The inclusion of monensin to the diet caused a significant reduction of the daily voluntary dry matter intake (DDMI), which was more pronounced for the cows (9.1%) than for the heifers (1.7%). The animal category x diet interaction affected significantly […]

The objective of this work was to evaluate different levels of enegetic supplementation, in the form of grounded sorghum for finishing of cull cows from different genotypes of Charolais (C) x Nellore (N), kept on cultivated pasture during the last half of the vegetative cycle. Thirty C, N, 3/4 C + 1/4 N (CN) and 3/4 N + 1/4 C (NC) beef cows, kept on cultivated pasture of oats (Avena strigosa) + ryegrass (Lolium multiflorum) were allotted in three supplementation […]

The behavior of lactation curve of 31 crossbred Saanen dairy goats and the effect of two strategies of supplementation with concentrate: 30% of requirements in net energy from third week until the end of lactation (ESC.1); or 60% of requirements in daily net energy from the 3rd to the 13th week and 15% from 14th until the end of lactation (ESC.2), in a pasture or semi-confined systems, were studied. The following models were evaluated: Wood linear and non-linear, Morant linear […]

The experiment was conducted to evaluate the parameters of dry matter intake, weight gain, feed conversion and energy efficiency of feedlot steers, fed with four diets that included silage of hybrids of sorghum with different agricultural behavior: AGX-213 and AG-2002 (forage), AGX-217 and AG-2005E (double purpose). Forty-eight steers with an average age of 19 months and average live weight of 316 kg, were used. The roughage:concentrate ratio was 63:37, for all the diets tested. No significant interaction was observed between […]

The effects of the addition of bakery waste (BW) replacing corn in the diet of Holstein steers was studied on carcass dressing and meat quality. Four treatments were applied, respectively, 0%, 10%, 20% and 30% of bakery waste replacing corn in the concentrated mixture. The animals were fed with complete pelleted mixtures, with 30% of Coast-cross hay (Cynodon dactylon L.) as roughage. A randomized block design with four treatments and five repetitions, total of 20 animals, was used. The experiment […]

One hundred and eighteen Holstein cows were used to evaluate the effects of body condition score at parturition on milk production and fat content, blood beta-hydroxybutirate (BHBA), glucose and aspartate-aminotransferase (AST) and disease occurence in early lactation. According to their body condition score (BCS) at calving, 1 (thin) at 5 (fat), the cows were alloted in two groups: I) composed by BCS ³ 4,0; and II) composed by BCS £ 3,5. The BCS were 4.2 and 3.2 for the group […]

This experiment was carried out to evaluate the effects of sex (males x females) and four slaughter weights (28, 32, 36 and 40 kg), on carcass morphometry, cuts weights, tissues and offals percentages, from crossbred lambs Ile de France x Corriedale, finished in feedlot. Fourty lambs (20 males and 20 females), were weaned at 60 days of age and were full fed a diet with 16.46% CP and 67.63% TDN. They were divided in 4 male groups (G1M, G2M, G3M […]