Avaliação de subproduto dos grãos de milho obtido da produção de etanol em ração para suínos em terminação

• Autor(a) principal: Freitas, Letícia Silva de
• Data de Publicação: 2009
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/1712
• topic: Carcaça; Desempenho; Terminação; Carcass; Performance; Finishing; CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL

Two experiments were conducted to evaluate the effect of the inclusion of corn DDGS in the ration for finishing pigs on the growth performance and carcass characteristics. In the experiment I, 72 animals were used, assigned in a randomized block design, in a 3 x 2 factorial arrangement (0, 10 and 20 % of DDGS x barrows and gilts), with three replicates and four animals of the same gender per experimental unit. The barrows fed with 0 % of DDGS had higher average daily weight gain than with DDGS. The average daily feed intake and feed conversion ratio did not vary between the treatments. The marbling of the loin was higher in the animals with 20 % of DDGS than with 0 %. The gilts that received ration containing 10 % of DDGS had a higher belly thickness in the ventral region than those with 0 %. The inclusion of up to 20 % of corn DDGS in the ration it s not viable for barrows due to the worsening of the growth performance, nevertheless, it does not affect the growth performance and the carcass characteristics of gilts in the finishing phase. In the experiment II, 80 animals were used, assigned in a randomized block design, in a 2 x 2 x 2 factorial arrangement (0 and 30 % of DDGS x 0 and 4 % of hydrogenated fat x barrows and gilts), with two replicates and five animals of the same gender per experimental unit. The daily weight gain and feed intake were lower for the animals that received rations with 30 % of DDGS, and were not influenced by the fat. The feed conversion ratio got worse in the animals that received DDGS in the 1 to 14 days period, but was not influenced by the fat addition or the gender. The loin eye area was smaller for the barrows that received DDGS and fat in the ration. The linoleic and eicosadienoic acid contents increased in the tissues of the animals that received DDGS in the ration, except in the loin, and the oleic acid reduced, except in the belly fat, independent of the hydrogenated fat addition. It was concluded that the inclusion of 30 % of DDGS in the ration, independent of the hydrogenated fat level, reduces the performance and does not improve the carcass characteristics of barrows and gilts.