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F Kheiri ;Revista Brasileira de Ciência Avícola 2012, 14 4

Autor: J Nasr

Fuente: http://www.redalyc.org/


Introducción



Revista Brasileira de Ciência Avícola ISSN: 1516-635X revista@facta.org.br Fundação APINCO de Ciência e Tecnologia Avícolas Brasil Nasr, J; Kheiri, F Effects of lysine levels of diets formulated based on total or digestible amino acids on broiler carcass composition Revista Brasileira de Ciência Avícola, vol.
14, núm.
4, diciembre, 2012, pp.
249-258 Fundação APINCO de Ciência e Tecnologia Avícolas Campinas, SP, Brasil Available in: http:--www.redalyc.org-articulo.oa?id=179725221004 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Brazilian Journal of Poultry Science Revista Brasileira de Ciência Avícola ISSN 1516-635X Oct - Dec 2012- v.14 - n.4 - 233-304 Author(s) Nasr J1 Kheiri F2 Department of Animal Science, Faculty of Agriculture, Saveh Branch, Islamic Azad University, Saveh, Iran. 2 Department of Animal Sceince, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran 1 Effects of Lysine Levels of Diets Formulated Based on Total or Digestible Amino Acids on Broiler Carcass Composition ABSTRACT The study was conducted to evaluate carcass yield and chemical composition of thigh and breast muscles of broilers fed three different lysine requirement levels: high lysine ( 10% NRC), standard (NRC) and low lysine (-10% NRC) and two ways of expressing amino acids in feedstuffs (total or digestible amino acids).
The results of this study showed that diet formulation based on digestible amino acids significantly influenced breast yield and abdominal fat deposition.
The study showed that increasing lysine level ( 10% NRC) of diet significantly increased both carcass and breast percentage and also carcass, breast and thigh weight.
The interaction between digestible amino acids and lysine requirement levels affe...





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