| Revista: | Revista brasileira de ciencia avicola |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000279230 |
| ISSN: | 1516-635X |
| Autors: | Borges, S.A1 Pedroso, Antonio Carlos1 Franco, Sebastiao Goncalves Flemming, Jose Sidney Sillus, P.P |
| Institucions: | 1Universidade Federal do Parana, Departamento de Zootecnia, Curitiba, Parana. Brasil |
| Any: | 2003 |
| Període: | Ene-Abr |
| Volum: | 5 |
| Número: | 1 |
| Paginació: | 29-35 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Nota breve o noticia |
| Enfoque: | Experimental |
| Resumen en inglés | An experiment was conducted to evaluate the effect of different digestible amino acid profiles on the performance of broilers in two phases: from 1 to 21 days and from 22 to 42 days of age. At the end of the experiment, carcass yield and cut percentages were evaluated. Nine hundred and sixty AgRoss birds were distributed in a randomized block design with four treatments (four digestible amino acid profiles): Rostagno et al. (2000), Baker & Han (1994b), Degussa (1997) and those recommended by AgRoss (2000), with six repetitions and 40 birds per repetition (20 males and 20 females). The results showed that the four diets were able to provide the requirements of the birds, since no significant differences were seen among the treatments on the performance in the two phases and on the carcass yield and cuts at 42 days of age. Males had better yields of feet, head and neck, and lower percentage of abdominal fat (p<0.05). The best cost/benefit ratio was seen for the profile established by Rostagno et al. (2000) when diets were evaluated in an ideal protein situation |
| Disciplines | Medicina veterinaria y zootecnia |
| Paraules clau: | Aves de corral, Nutrición animal, Pollos de engorda, Dietas, Requerimientos nutricionales, Aminoácidos, Proteínas, Digestibilidad, Rendimiento |
| Keyword: | Veterinary medicine and animal husbandry, Animal nutrition, Poultry, Broilers, Diets, Nutritional requirements, Amino acids, Proteins, Digestibility, Yield |
| Text complet: | Texto completo (Ver HTML) |
