Apparent digestibility of diets with different levels of canola meal to equines

Revista Brasileira de Zootecnia

Oliveira, Kátia de¹  Furtado, Carlos Eduardo² 

[1]UNIMAR, Marília

[2]UEM, Maringá

关键词: canola meal;    coefficient of digestibility;    equine   IntroduçãoA utilização de concentrado na alimentação de eqüinos é um dos fatores que mais onera o custo de produção;    desta forma;    a busca de fontes alternativas para compor rações para esta espécie;    no sentido de diminuir os custos de alimentação;    torna-se;    atualmente;    fator limitante na criação de cavalos;   

DOI  :  10.1590/S1516-35982001000100026

学科分类：兽医学

来源: Universidade Federal de Vicosa

【 摘 要 】

- Four male equines averaging 3.5 years old and live weight of 400-450 kg were distributed in a 4 x 4 Latin square (period x animal) experimental design. The inclusion of canola meal levels in diets were 0.0; 2.5; 4.5 and 7.0%, replacing respectively 0, 35, 65 and 100% of crude protein (CP) from soybean meal. The diets were isoproteic (13% CP) and isocaloric (4250 kcal/kg). The total fecal collection method was used for the determination of the nutrient digestibility coefficients. There was no effect of the substitution levels of soybean meal crude protein by canola meal for none of the analyzed nutrients. The average obtained values for the apparent digestibility of dry matter, gross energy, crude protein, neutral detergent fiber and acid detergent fiber were 64.04, 55.82, 62.89, 51.20 and 42.05%, respectively. The concentrate for equines can be formulated with total substitution of soybean meal crude protein by canola meal (inclusion level of 7%) without negatively affects the nutrient digestibilities, becoming as an alternative protein source in the diets of these animal species.

【 授权许可】

CC BY-NC