Dietas com baixa inclusão de volumoso para cordeiros Dorper x Santa Inês terminados em confinamento

• Autor(a) principal: Bento, Elis Aparecido
• Data de Publicação: 2013
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: Repositório Institucional da UFG
• Texto Completo: http://repositorio.bc.ufg.br/tede/handle/tede/3746
• topic: Ácidos graxos; Alimento concentrado; Degradabilidade; Ovinos; Concentrated Foodstuff; Degradability; Fatty Acids; Sheep; PRODUCAO ANIMAL::CRIACAO DE ANIMAIS

The objective of the present study was to evaluate the performance, carcass characteristics and digestibility of diets with low or no bulk food inclusion in Dorper X Santa Ines lambs finished in a feedlot. The treatments consisted of five complete diets: Commercial Feed Corte Confina® (CCONF), commercial Concentrate Corte 20® plus Bagasse (CB), commercial Concentrate plus Corn and Bagasse (CMB), commercial Concentrate plus Corn, Soybean hulls and Bagasse (CMCSB) and commercial Concentrate plus Soybean hulls and Bagasse (CCSB). The performance study was carried out in the Goat and Sheep Sector at the Federal Institute Goiano - Campus Rio Verde – Goiás - Brazil. Twenty intact F1 Dorper x Santa Ines lambs were used, average age 60 days and average weight 20.34±39 kg at the start of the experiment. A complete randomized design was used. The experiment lasted 85 days and the animals were weighed every 21 days. The digestibility experiment was carried out in the experimental installations at the Food Analysis Laboratory of the Animal Production Department at the Veterinary and Animal Science College of the UNIVERSIDADE FEDERAL DE GOIÁS Goiânia – Brazil. A 5 x 5 Latin square was used to evaluate the apparent digestibility and intake performance. Samples of the diets used in the performance experiment were incubated to evaluate the in vitro dry matter degradability. The means were compared by the Fisher DMS test (α = 0.05). The diet did not affect (P>0.05) either performance, where the mean general weight gain was 232.4 g/day for 4.78 food conversion, or the carcass characteristics. The fatty acid profile of the carcass was altered. The intake performance was not affected and the food conversion was not altered.