EVALUATION OF NUTRITIONAL PROGRAMS ASSOCIATED TO CARBOHYDRASES AND PHYTASE SUPPLEMENTATION TO BROILER DIETS

Authors

  • Bruno Duarte A. Fortes Universidade Federal de Goiás
  • Marcos Barcellos Cafe Universidade Federal de Goiás
  • Jose Henrique Stringhini Universidade Federal de Goiás
  • Jerônimo Á. Gonçalves de Brito Universidade Federal do Recôncavo da Bahia
  • Pedro L. de Paula Rezende Universidade Federal de Goiás
  • Roberta Dias Silva Universidade Federal de Goiás

DOI:

https://doi.org/10.5216/cab.v13i1.8705

Keywords:

Poultry production

Abstract

This experiment was conducted to evaluate the effect of different nutritional programs associated to enzyme supplementation (carbohydrases and phytase) on performance and carcass characteristics. A total of 2,016 male broiler chicks of Cobb-500 strain were allotted in third-two pens and fed diets based on corn and soybean meal. A completely randomized design with four treatments and eight replicates of 63 birds each was used. The treatments were designed as follows: T1 - nutritional program recommended for Coob-500; T2 -T1 nutritional program with reduction of 4% of metabolizable energy (ME), 3% of crude protein (CP) and 10% of all amino acids; T3 - T1 nutritional program with 200g/T of carbohydrases and 50g/T of phytase; and T4 - T2 nutritional program with 200g/T of carbohydrases and 50g/T of phytase. The results showed no statistical difference in feed conversion ratio and carcass characteristics for all treatments in the period of 1 to 42 days of age. However, feed consumption, slaughter weight and weight gain were affected, the treatments supplemented with enzymes had greater feed consumption than the treatments without enzyme supplementation, besides the highest slaughter weight and weight gain. In conclusion, the use of carbohydrases associated with phytase enzymes was effective to increase the apparent metabolizable energy of diets based on corn and soybean meal. The addition of enzymes to the diet of broilers led to an increase in feed consumption of 5.18%, and improved weight gain in 4.39%.

KEYWORDS: broilers; carbohydrases; carcass characteristics; performance; phytase.

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Author Biographies

Bruno Duarte A. Fortes, Universidade Federal de Goiás

Doutorando no Departamento de Produção Animal – Escola de Veterinária – Universidade Federal de Goiás, Caixa Postal 131, Campus II, Goiânia – GO, 74001-970.

Marcos Barcellos Cafe, Universidade Federal de Goiás

Professor Doutor do Departamento de Produção Animal – Escola de Veterinária – Universidade Federal de Goiás, Caixa Postal 131, Campus II, Goiânia – GO, 74001-970.

Jose Henrique Stringhini, Universidade Federal de Goiás

Professor Doutor do Departamento de Produção Animal – Escola de Veterinária – Universidade Federal de Goiás, Caixa Postal 131, Campus II, Goiânia – GO, 74001-970.

Jerônimo Á. Gonçalves de Brito, Universidade Federal do Recôncavo da Bahia

Professor Doutor do Centro de Ciências Agrárias, Ambientais e Biológicas – Universidade Federal do Recôncavo da Bahia, Cruz das Almas - BA, 44380-000.

Pedro L. de Paula Rezende, Universidade Federal de Goiás

Doutorando no Departamento de Produção Animal – Escola de Veterinária – Universidade Federal de Goiás, Caixa Postal 131, Campus II, Goiânia – GO, 74001-970.

Roberta Dias Silva, Universidade Federal de Goiás

Doutoranda no Departamento de Produção Animal – Escola de Veterinária – Universidade Federal de Goiás, Caixa Postal 131, Campus II, Goiânia – GO, 74001-970.

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Published

2012-03-29

How to Cite

FORTES, B. D. A.; CAFE, M. B.; STRINGHINI, J. H.; BRITO, J. Á. G. de; REZENDE, P. L. de P.; SILVA, R. D. EVALUATION OF NUTRITIONAL PROGRAMS ASSOCIATED TO CARBOHYDRASES AND PHYTASE SUPPLEMENTATION TO BROILER DIETS. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 13, n. 1, p. 24–32, 2012. DOI: 10.5216/cab.v13i1.8705. Disponível em: https://revistas.ufg.br/vet/article/view/8705. Acesso em: 17 jul. 2024.

Issue

Vol. 13 No. 1 (2012)

Section

Animal Production

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