The effects of the replacement of corn silage by orange peel silage were studied on the intake of nutrients, production and quality of the milk of Holstein dairy cows. A 4 x 4 Latin square design with four replacement levels (0, 25, 50 or 75% DM) of corn silage by orange peel with forage to concentrate ratio of 50:50 were used. The replacement levels did not affect the percentage of milk fat and milk protein, however the nutrient intake and […]

The objective of this work was to develop a software to assist the technicians and producers in the determination of the cost of production of milk. The Milk Cost is made up of a plan of calculations encompassing both expenses and incomes. The user can put into a spreadsheet all the expenses and incomes concerning to the milk production system. The software enables the spreadsheet of all the estates and facilities of the production system, aiming the calculations of depreciation […]

The objectives of this study were to develop a software that accomplishes both the dimensioning and evolution of cattle herds and develop a tool which makes it possible for the user to perform simulations with production systems of milk and or beef. The language employed was CA Clipper. The routines have been developed in a conversational form, with an access to the several programs by means of self-explicative menus. The developed system can aid both the technician and the raiser […]

The objective of this experiment was to compare qualitative carcass characteristics of 36 lambs that were finished in coastcross pasture, being 13 Corriedale, 14 Bergamacia x Corriedale, and 9 Hampshire Down x Corriedale, and 29 lambs tha twere finished in a dry-lot system, being 10 Corriedale, 11 Bergamacia x Corriedale, and 8 Hampshire Down x Corriedale. The average of the variables (scale ranging from 1 to 5), body condition score (2.70 vs 3.13.), conformation (2.65 vs. 3.35) and subcutaneous fat […]

The objective of this work was to study the replacement of corn by cassava hulls, swept cassava meal or cassava scrapings on the average weight gain, feed intake, feed:gain ratio and carcass yields of feedlot heifers. Twenty-eight crossbreeding heifers averaging 365 kg LW and 24 months of age were allotted to a randomized blocks design in a 56 days experimental period, with four diets and seven replicates. There was no effect of replacement of corn by cassava products on average […]

The objective of this work was to evaluate the average daily dry matter intake (DMI), DMI per 100 kg of live weight (DMIP), DMI per unit of metabolic weight (DMIM), feed: gain (FG) and average daily weight gain (ADG) of beef calves fed with different levels of crude protein in the diet. Forty-seven Braford intact male calves, 66 days old and 76.4 kg of live weight were used. Animals were full fed with oat silage and concentrate (50/50), with 13; […]

This work was carried out to study the replacement levels of corn by triticale in feedlot Nellore heifers. Fifty-six Nellore heifers, 18 months of age and with an initial LW 212 kg were allotted to a completely randomized experimental design, with four corn replacement levels (0, 33, 66 and 100%) by triticale and seven replications. There were no effects of corn replacement levels on the final live weight, average daily gain, intakes of dry matter, crude protein, neutral detergent fiber, […]

Four buffaloes and four cattle rumen fistulated were used to study the effects of different levels of neutral detergent fiber in the diet on the rumen fermentation characteristics. Ammonia concentration, volatile fatty acids (VFA) production (acetic acid, propionic acid and butyric acid) and pH in the ruminal fluid were evaluated. The animals were allotted to two latin square experimental design (4×4) in a 4×2 factorial arrangement with four increasing levels of NDF in the DM (54, 60, 66 and 72%) […]

Four buffaloes and four cattle rumen fistulated were used with the objective to study the effects of different levels of neutral detergent fiber in the diet on the digestion characteristics. The In situ degradations of dry matter (DM), neutral detergent fiber (NDF) of the coastcross hay and wheat meal, DM of the corn ground and soybean meal were evaluated. The digestibilities of DM, crude protein and NDF of the diets were also evaluated using a Cr2O3 as a marker. The […]

This paper evaluated the parameters of Gompertz nonlinear function to describe Guzera male and female growth curve, and their crossbreds (3/4Guzera – 1/4Brown Swiss, 1/2Nellore – 1/4Brown Swiss – 1/4Guzera, 1/2Brown Swiss – 1/2Guzera, 1/2Chianina – 1/4Brown Swiss – 1/4Guzera, 1/2Caracu – 1/2Guzera, 1/2Caracu – 1/4Brown Swiss – 1/4Guzera) submitted to three levels of supplementation: without supplementation, supplementation only during the dry season, and year-round supplementation. There were significant interactions between supplementation and breed, and breed and sex on mature […]