Determination of the lysine level on initial-II growing phase, through chemical composition and iessues deposition and finishing effects, in swines

Authors

  • Messias Alves da Trindade Neto Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Pesquisa e Desenvolvimento em Nutrição e Alimentação Animal, Nova Odessa, SP
  • Hacy Pinto Barbosa Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Pesquisa e Desenvolvimento em Nutrição e Alimentação Animal, Nova Odessa, SP
  • Rodolfo Nascimento Kronka Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, SP
  • Izabel Marin Petelincar de Sordi Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Pesquisa e Desenvolvimento em Nutrição e Alimentação Animal, Nova Odessa, SP
  • Eliana Aparecida Schammass Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Métodos Quantitativos, Nova Odessa, SP

Keywords:

ash, lipid, protein, water, weaned piglets

Abstract

Thirty commercial hybrid pigs, barrows and females were sampled from a performance experiment and slaughtered to determine the chemical composition of the body fractions and rates of protein and lipidic deposition in carcass and empty body. Fifteen animals were slaughtered at the end of the nursery phase, after being submitted to the lysine levels 0.80, 0.90, 1.00, 1.10 and 1.20%. Other fifteen animals were slaughtered at the end of the finishing phase, after receiving diets with similar characteristics and nutritional values in the growing and finishing phases. There were no effects in the chemical composition of the offal and blood, characterising independence of lysine levels. As lysine levels increased there was positive effect on the percentage and deposited protein on the carcass and empty body. There was linear reduction in the lipid percentage of carcass and empty body; and body lipidic deposition. The increase of lysine levels led to higher efficiency in the utilisation and directioning of lysine for protein synthesis of the skeleton muscles. There were no effects of lysine levels on the chemical composition and deposition rates at 95.3kg of live weight. These linear results in body composition and deposition showed that the lysine levels must not be lower than 1.20% for piglets between 10.5 and 19.7kg suggesting new evaluations with levels higher for determine the maximum protein deposition.

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Published

2013-12-02

Issue

Section

ANIMAL NUTRITION

How to Cite

Determination of the lysine level on initial-II growing phase, through chemical composition and iessues deposition and finishing effects, in swines. (2013). Bulletin of Animal Husbandry, 58(1), 59-71. http://bia.iz.sp.gov.br/index.php/bia/article/view/1389

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