| Journal: | Revista Brasileira de Zootecnia |
| Database: | PERIÓDICA |
| System number: | 000445535 |
| ISSN: | 1516-3598 |
| Authors: | Laboissière, Michele1 da Costa, Miliane Alves2 Jardim Filho, Roberto de Moraes3 Leandro, Nadja Susana Mogyca2 Café, Marcos Barcellos2 Stringhini, José Henrique2 |
| Institutions: | 1Universidade Estadual de Goias, Sao Luis de Montes Belos, Goias. Brasil 2Universidade Federal de Goias, Escola de Veterinaria e Zootecnia, Goiania, Goias. Brasil 3Sao Salvador Alimentos, Itaberai, Goias. Brasil |
| Year: | 2020 |
| Volumen: | 49 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, analítico |
| English abstract | The objective of this study was to evaluate the inclusion of feather and blood meal (FBM) in broiler pre-starter and starter diets according to the processing method used. Performance, digestibility, and intestinal morphometry of broilers fed diets containing FBM were evaluated in two experiments, in the pre-starter (1-7 d) and starter (8-21 d) phases in a randomized block design with four treatments and five replicates of 12 birds, totaling 20 experimental units per trial. The criteria used for block formation was the battery floor. The meal was processed under different degrees of hydrolysis pressure (2.0 kgf/cm2 for 40 min; 2.5 kgf/cm2 for 30 min; and 3.0 kgf/cm2 for 20 min) and added at 9% to the pre-starter (Experiment I) and starter (Experiment II) diets. In each experiment, 480 male Cobb 500® chicks were allocated to batteries. The following variables were measured: live weight, weight gain, feed intake, feed conversion ratio, and digestibility and retention of dry matter, nitrogen, and ether extract. Performance was not influenced by the dietary inclusion of the ingredient. However, FBM subjected to the highest hydrolysis pressure resulted in the worst overall nutritional balances. The chickens were more susceptible to FBM processing in the pre-starter phase, when the hydrolysis pressure of 2.5 kgf/m2 for 30 min provided the best results. In the starter diet, FBM processed at a hydrolysis pressure of 2.0 kgf/m2 for 40 min provided the best performance results up to 14 days of age, without changing nutrient metabolism. Up to 9% feather and blood meal can be included in broiler pre-starter and starter diets as long as the ingredient processing method is well-known |
| Disciplines: | Medicina veterinaria y zootecnia |
| Keyword: | Aves de corral, Nutrición animal, Pollos de engorda, Harina, Plumas, Sangre, Subproductos, Metabolismo |
| Keyword: | Poultry, Animal nutrition, Broilers, Meal, Blood, Feather, Feeding, Metabolism, Byproducts |
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