Utilização de complexo enzimático em rações contendo farelo de gérmen de milho desengordurado para suínos em crescimento e terminação

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

Corn grain for its percentage of carbohydrates and energy potential is an excellent source of nutrients for animals, but as the soybean, has a great instability in prices. Therefore, it is clear the need for searching for new alternatives that can economically replace these ingredients. Among many substitutes, there is the defatted corn germ meal (DCGM), wich has lower nutritional value compared to corn grain, especially in energy, attributed to lower oil and higher value of fiber in its composition. The use of exogenous enzymes is a way to improve the utilization of the energy and other nutritional components of animal feed. It is possible to improve the nutrient digestibility of diets. The objective of this study was to evaluate the inclusion of DCGM (20%) in association with the use of enzymatic complex (EC) in the diets of piglets in the growing-finishing phases on the digestibility, animal performance, carcass characteristics and meat quality. Fifty pigs (Agroceres Pic), 25 barrows and 25 females, with 41,14 kg of initial weight were used, been allocated 2 animals per pen. The pigs were submitted during 83 days to 5 treatments: T1- control ration (maize + soybean); T2- ration with 20% DCGM; T3- ration with 20% DCGM plus EC; T4- ration with 20% DCGM reformulated without CE (presenting lesser nutrients than the other rations); T5- ration with 20% DCGM with on top EC. The experimental design was based in random blocks, with 5 treatments and 5 replicates per treatment, each pen was considered replicate. When the total period of the test was considered significant differences (P <0,05) were observed for daily weight gain, where T5 presented the best results and T4 the worst values. For the feed conversion, T4 presented the worst results. The higher pH values were obtained in T1 treatment, but pH did not affect the meat quality. And about the carcass characteristics, the barrows presented higher values (P<0,05) for backfat thickness, while the females presented better values for meat in carcass percent. The results showed that the use of enzymatic complex in diets for growing-finishing piglets with the inclusion of 20% defatted corn germ meal (DCGM), improved the performance without compromising the characteristics of carcass and meat.

ASSUNTO(S)

suíno - alimentação e rações nutrição animal suíno - carne - qualidade gérmen de milho como ração animal nutrition swine feeding and feeds

ACESSO AO ARTIGO

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