Prediction of metabolizable energy values in poultry offal meal for broiler chickens

Revista Brasileira de Zootecnia

Edney Pereira Da Silva²  Carlos Bôa-viagem Rabello²  Luiz Fernando Teixeira Albino¹  Jorge Victor Ludke¹  Michele Bernardino De Lima²  Wilson Moreira Dutra Junior² 

[1] ,Universidade Federal Rural de Pernambuco Departamento de Zootecnia Recife Pernambuco ,Brasil

关键词: apparent metabolizable energy;    broiler chickens;    prediction equation;    true metabolizable energy;    energia metabolizável aparente;    energia metabolizável verdadeira;    equação de predição;    frangos de corte;   

DOI  :  10.1590/S1516-35982010001000020

来源: SciELO

【 摘 要 】

This research aimed at generating and evaluating prediction equations to estimate metabolizable energy values in poultry offal meal. The used information refers to values of apparent and true metabolizable energy corrected for nitrogen balance (AMEn and TMEn) and for chemical composition of poultry offal meal. The literature review only included published papers on poultry offal meal developed in Brazil, and that had AMEn and TMEn values obtained by the total excreta collection method from growing broiler chickens and the chemical composition in crude protein (CP), ether extract (EE), mineral matter (MM), gross energy (GE), calcium (Ca) and phosphorus (P). The general equation obtained to estimate AMEn values of poultry offal meal was: AMEn = -2315.69 + 31.4439(CP) + 29.7697(MM) + 0.7689(GE) - 49.3611(Ca), R² = 72%. For meals with high fat contents (higher than 15%) and low mineral matter contents (lower than 10%), it is suggest the use of the equation AMEn = + 3245.07 + 46.8428(EE), R² = 76%, and for meals with high mineral matter content (higher than 10%), it is suggest the equations AMEn = 4059.15 - 440.397(P), R² = 82%. To estimate values of TMEn, it is suggested for meals with high mineral matter content the equation: TMEn = 5092.57 - 115.647(MM), R² = 78%, and for those with low contents of this component, the option is the equation: TMEn = 3617.83 - 15.7988(CP) - 18.2323(EE) - 96.3884(MM) + 0.4874(GE), R² = 76%.

【 授权许可】

CC BY   
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