Utilização de complexo enzimático em rações contendo milho ou sorgo para leitões em fase de creche
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2010-10-29
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Universidade Federal de Goiás
Resumo
The objective of the research to verify the feasibility of using an enzyme complex
for pigs in the nursery phase, by evaluating the performance and digestibility of
diets containing two types of carbohydrates with or without addition of enzyme
complex containing carbohydrases, proteases and phytase . There were two
experiments were conducted in the Department of Poultry Department of Animal
Production, School of Veterinary UFG. In the first experiment was to evaluate the
digestibility of the nutrients with the use of twelve animal hybrids, the genetic line
Dalland barrow. The design was randomized blocks in time, with four treatments
(T1: maize and soybean meal without the EC, T2: low tannin sorghum and
soybean meal without the EC, T3: corn and soybean meal with CE, T4: low tannin
sorghum and soybean meal with CE) and six replicates using a 2x2 factorial
design, with them, carbohydrate and enzyme. The digestibility of experimental
diets were formulated to isonutrient digestible amino acids. In Experiment II were
weight gain, feed intake and feed conversion, besides the economic viability
analysis of the diets to be tested. A total of 48 animals, 24 barrows and 24
females. The treatments were the same used in the metabolism trial, but T2 and
T4 were formulated with lower levels of MS (-50 Kcal / kg) Ca (- 0.1%) and P (-
0.1%). The results were subjected to analysis of variance (ANOVA) and
comparison of means by Tukey test (5%). For the digestibility experiment were not
significant differences (P> 0.05) for the variables shown in any of the stages
studied, except for calcium (P <0.05) which was absorbed in greater proportion
with the addition of the enzyme. For the performance trial, according to analysis of
variance no significant differences were observed in relation to food source of
variation for the following variables PI, and CRT and CRD source of variation for
enzyme parameters PI, PF, GPD, GPT did not suffer significant differences. As the
interaction of food and enzyme differences were observed only for PF, and GPT
and GPD CA. It was concluded that the substitution of corn by sorghum and the
inclusion of the enzyme complex is feasible on the growth performance
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NASCIMENTO, Priscila Pereira do. Use of enzyme complex in diets containing corn or sorghum for stage and in nursery pigs. 2010. 81 f. Dissertação (Mestrado em Ciências Agrárias - Veterinaria) - Universidade Federal de Goiás, Goiânia, 2010.