| Journal: | Revista brasileira de ciencia avicola |
| Database: | PERIÓDICA |
| System number: | 000279287 |
| ISSN: | 1516-635X |
| Authors: | Araujo, Lucio Francelino1 Ortolan, Josiane Hernandes Faria, Douglas Emygdio de Junqueira, Otto Mack2 Araujo, Cristiane Soares da Silva Barbosa, Luis Carlos Garibaldi Simon Stringhini, Jose Henrique3 |
| Institutions: | 1Universidade de Sao Paulo, Faculdade de Zootecnia e Engenharia de Alimentos, Pirassununga, Sao Paulo. Brasil 2Universidade Estadual Paulista "Julio de Mesquita Filho", Faculdade de Ciencias Agrarias e Veterinarias, Jaboticabal, Sao Paulo. Brasil 3Universidade Federal de Goias, Escola de Veterinaria, Goiania, Goias. Brasil |
| Year: | 2005 |
| Season: | Oct-Dic |
| Volumen: | 7 |
| Number: | 4 |
| Pages: | 237-241 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Nota breve o noticia |
| Approach: | Experimental |
| English abstract | An experiment was conducted to evaluate the performance and carcass yield of broilers at 55 days of age fed diets with different levels of metabolizable energy and lysine. Evaluated data of performance were weight gain, feed intake, energy intake, lysine intake, caloric conversion and feed conversion. Carcass assessment was performed based on data from carcass yield, breast weight, whole wings, whole legs, back, head + neck, feet and abdominal fat. A 3 x 3 factorial arrangement was used, with 3 levels of metabolizable energy (3,200; 3,400 and 3,600 kcal ME/kg) and 3 lysine levels (0.95%; 1.05% and 1.15%). There was no interaction between the two factors. Nevertheless, increasing levels of metabolizable energy improved weight gain (745 g; 841 g and 910 g, respectively) and feed intake was higher in broilers receiving the diets with 3,200 and 3,600 kcal ME/kg. Overall performance was not affected by lysine levels. Feed conversion values were 2.69, 2.42 and 2.14 for birds fed diets with 3,200; 3,400 and 3,600 kcal ME/kg, respectively. Carcass yield and breast weight increased with higher levels of energy and lysine in the diets |
| Disciplines: | Medicina veterinaria y zootecnia |
| Keyword: | Aves de corral, Nutrición animal, Pollos de engorda, Dietas, Valor energético, Suplementación, Lisina, Metabolismo, Rendimiento |
| Keyword: | Veterinary medicine and animal husbandry, Animal nutrition, Poultry, Broilers, Diets, Energetic value, Supplementation, Lysine, Metabolism, Yield |
| Full text: | Texto completo (Ver HTML) |
