One experiment was conducted to evaluate the utilization of rice by-products in diets based on crude and ideal protein concepts for broilers from 1 to 42 days of age. Seven hundred and twenty male chicks, one day old, Hybro strain, were distributed in a completely randomized design in a 3 × 2 factorial arrangment, three diets (without by-product, whole rice meal and broken rice) and two ration formulation concepts (crude and ideal protein), totalizing six treatments and four replications of […]

A protocol of two inseminations (12h and 36h; time schedule) per estrous was applied in fifty sows in order to study the individual influence of the insemination order on the offspring composition. Analyses of microsatellites were used for identification of the paternity. The first and the second inseminations contributed respectively with 34.8% and 65.2% of all piglets that were born. Piglets were born from both inseminations (mixed litters) in 80% of the farrowings. Each of the first or the second […]

A total of 520 1-d old male broiler chicks (Cobb) was fed a corn-soy-fat-free rice meal diet to evaluate the effect of phytase suplementation on performance and nutrient digestibility. The experiment was analyzed as a completely randomized experimental design with five treatments, eight replications of 13 broilers per replication. The percentage composition of the experimental diets were: positive control (PC) with 3000 kcalME/kg; 21.4% CP; 0.42% Pd and 0.96% Ca and negative control (NC) with 2940 kcalME/kg; 21.2% CP; 0.27% […]

A survey was done based on 19 goat shepherds at counties of Centre-highlands, Northern and North-western regions of the Rio de Janeiro State and at the county of Pedra Dourada, Zona da Mata region, State of Minas Gerais. We aimed to characterise the primary sector of the goat milk production chain settled at those regions. Therefore, questionnaires were applied in order to depict profiles of the shepherds, their families, the role of the wife in the activity, the resources available, […]

This work was carried out to apply a simulation model for the bioeconomic evaluation of feeding strategies for dairy herds and evaluate the physical productivity and the bioeconomic efficiency of feeding systems for dairy cows using feeding forage based strategies for cows with five levels of milk yield. An computational platform developed with the programs CNCPS v5.0 and electronic spreadsheets of Microsoft Excell® was used, in way to simulate the production and demands of nutrients of a complete lactation for […]

The effect of ammonization of elephant grass and the partial substitution of the standard concentrate based on corn and soybean meal by concentrates containing cocoa meal or palm cake on sheep performance was evaluated. A total of 18 Santa Inês male sheep, with average 22.6 kg BW, was allotted to a completely randomized design in a 2 × 3 factorial arrangment with three replications. The experimental period consisted of 77 days, with 14 days for adaptation and three periods of […]

The objective of this research was to study the effects of enramycin and sodium monensin administration on dry matter intake, ruminal fermentation and alimentary behavior in bovine. Twelve non-pregnant and non-lactating cows (675 kg ± 63 of BW) were randomly assigned to three treatments: control group, enramycin treated group or monensin treated group. Animals received a diet containing 60% of concentrates (corn, soybean meal and minerals) and 40% of forage (sugarcane). Treatments were 20 mg/animal/day of enramycin and 300 mg/animal/day […]

The effects of energy levels in multiple supplements on productive performance and nutritional parameters were evaluated of finishing beef cattle grazing palisade grass (Brachiaria brizantha cv. Marandu), during the rainy to dry transition season. For the performance evaluation, 24 crossbred bulls, 18 month old and 330 kg of initial body weight (BW), were distributed to a completely randomized design, in four paddocks of 1.5 ha each. Four treatments were evaluated: mineral mix (MM) and corn and whole soybean grain based […]

The effect of partial replacement of soybean meal (SM) by hydrolyzed protein of the cellular content of yeast (HPCCY), isolated protein of soy (IPS), hydrolyzed protein of intestinal mucosa membrane of swine (HPIMS) in diets with dried whole milk (DWM) on performance, serum urea and diarrhea incidence of weaned pigs. Fourteen piglets weaned at 21 days old (20 barrows and 20 females), were allotted to a completely randomized experimental block design with five treatments (diets) and 8 replications each. The […]

This study evaluated the effects of the inclusion of a yeast culture (Saccharomyces cerevisiae 1026) on the parameters of ruminal fermentation of beef cattle. Ten rumen fistulated 1/2 Red Angus 1/2 Nellore steers confined in individual pens were fed a diet containing 50% sorghum silage and 50% concentrate (%DM) containing peleted soybean hulls, sorghum grain, urea and mineralproteic premix. A completely randomized design was used to compare diets with or without Saccharomyces cerevisiae (1 g/100 kg of live weight) on […]