Efeitos dos níveis de energia, lisina e metionina + cistina sobre o desempenho e o rendimento de carcaça de frangos de corte

Translated title of the contribution: Effect of energy, lysine and methionine and cystine levels on performance and carcass yield of broiler chickens

Laís Maria Brito Lima, Leonardo José Camargos Lara, Nelson Carneiro Baião, Silvana De Vasconcelos Cançado, Bruna Cypreste Michell, Fernanda Ferreira

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

The effects of dietary energy, lysine and methionine + cystine levels on performance, carcass and cuts yields of male and female broiler chickens were evaluated. The experiment was analyzed as a completely randomized experimental design in a 3 x 2 factorial arrangement composed by six diets and eight replications (four males and four females). The diets consisted of energy (low, middle and high) and lysine and methionine + cystine (standard and + 10%) levels and of raising period (1 to 45 days old). Male broilers fed diets with 3,000, 3,100 and 3,200 kcal/kg, respectively, in the initial, growing and standard levels of amino acids showed better weight gain at 45 days old, however, for the best breast yield, the highest amino acid level was the most indicated. Middle energy and high amino acids levels are indicated for greater weight up to 40 days old, in females.

Translated title of the contributionEffect of energy, lysine and methionine and cystine levels on performance and carcass yield of broiler chickens
Original languagePortuguese
Pages (from-to)1424-1432
Number of pages9
JournalRevista Brasileira de Zootecnia
Volume37
Issue number8
DOIs
StatePublished - Aug 1 2008
Externally publishedYes

Keywords

  • Amino acid
  • Broiler
  • Carcass yield
  • Energy
  • Performance

ASJC Scopus subject areas

  • Animal Science and Zoology

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