Effect of high lysine levels during finishing period on performance and carcass quality of broiler chickens

Authors

  • Érika Salgado Politi Braga Saldanha Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Estação Experimental de Zootecnia de Brotas, Brotas, SP
  • Ariel Antonio Mendes Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Produção e Exploração Animal, Botucatu, SP
  • Elisabeth Gonzales Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Produção e Exploração Animal, Botucatu, SP
  • Edivaldo Antonio Garcia Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Produção e Exploração Animal, Botucatu, SP
  • Antonio de Pádua Deodato Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Estação Experimental de Zootecnia de Brotas, Brotas, SP

Keywords:

broiler, carcass yield, final diet, lysine, performance

Abstract

The objective of this experiment was to evaluate the effects upon performance and carcass yield of high levels of lysine supplemented on final diet of broilers during the period of 43 to 49 days. The experimental design consisted of 8 treatments in a 2 X 4 (sex and 4 lysine levels) factorial arrangement, and 5 replications (blocks) of 48 birds each one, totaling 240 birds per treatment. The experimental diets contained 100; 108; 116; and 124% of lysine levels suggested by AEC (1993) to feed broilers from 43 to 49 days of age. At 49 days, were slaughtered 4 broilers per replicate, in a total of 20 per treatment. The characteristics evaluated were body weight, weight gain, feed consumption, feed conversion, and yield of carcass and parts. The increased lysine levels significantly improved (P<0.05) the final body weight, but did not affect carcass yield, weight gain, food consumption and conversion of the experimental period (43 to 49 days). The final body weight of the males was higher (P<0.05) than the females, which on the other hand showed higher breast yield (P<0.05). As the use of high lysine levels did not benefice the productivity, it was concluded that the requirements suggested by ALIMENTATION EQUILIBRÉ COMMENTRY (1993) to feed broilers from 43 to 49 days were appropriate.

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Published

2013-12-02

Issue

Section

ANIMAL NUTRITION

How to Cite

Effect of high lysine levels during finishing period on performance and carcass quality of broiler chickens. (2013). Bulletin of Animal Husbandry, 58(1), 73-81. http://bia.iz.sp.gov.br/index.php/bia/article/view/1393

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