| Revista: | Revista brasileira de ciencia avicola |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000279250 |
| ISSN: | 1516-635X |
| Autors: | Toledo, Geni Salete Pinto de1 Costa, P.T.C Lopez, J2 |
| Institucions: | 1Universidade Federal de Santa Maria, Centro de Ciencias Agrarias, Santa Maria, Rio Grande do Sul. Brasil 2Universidade Federal do Rio Grande do Sul, Departamento de Zootecnia, Porto Alegre, Rio Grande do Sul. Brasil |
| Any: | 2004 |
| Període: | Oct-Dic |
| Volum: | 6 |
| Número: | 4 |
| Paginació: | 219-224 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Nota breve o noticia |
| Enfoque: | Experimental |
| Resumen en inglés | Two experiments were conducted to evaluate the effect of diets formulated using the criteria of crude protein (CP) and ideal protein (IP) on the yield and carcass composition of male and female broilers. Birds of two broilers strains (Hybro G and Hybro PG) were reared from 1 to 42 days of age during the summer, with average temperatures of 26°C. A completely randomized experimental design was used in a 2 x 2 factorial arrangement, with 6 replicates and 20 birds per pen. On day 42, four birds from each experimental unit were killed and carcass yield and composition were determined. Breast yield was higher in males and females fed the IP-based diet than in birds fed the CP-based diet. Abdominal fat pad and carcass crude protein were statistically similar between the two protein criteria and between strains. Carcass amino acid levels evidenced higher levels of Met, Lys, Met+Cys and Thr in the males fed IP-based diets. No differences were seen between the two criteria for the females. Diets formulated according to IP resulted in better carcass and breast yield, both for males and females |
| Disciplines | Medicina veterinaria y zootecnia |
| Paraules clau: | Aves de corral, Nutrición animal, Pollos de engorda, Dietas, Proteína bruta, Composición corporal, Rendimiento |
| Keyword: | Veterinary medicine and animal husbandry, Animal nutrition, Poultry, Broilers, Diets, Crude protein, Body composition, Yield |
| Text complet: | Texto completo (Ver HTML) |
