| Revista: | Revista brasileira de ciencia avicola |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000279354 |
| ISSN: | 1516-635X |
| Autores: | Paz, Ibiara Correia de Lima Almeida1 Mendes, Ariel Antonio Quintero, R.R Vulcano, Luiz Carlos Takahashi, Sabrina Endo Garcia, Rodrigo Garofallo Komiyama, Claudia Marie Balog, A Pelicia, Kleber Wescheler, F.S Scudeller, P.S.O Piccinin, Adriana |
| Instituciones: | 1Universidade Estadual Paulista "Julio de Mesquita Filho", Faculdade de Medicina Veterinaria e Zootecnia, Botucatu, Sao Paulo. Brasil |
| Año: | 2006 |
| Periodo: | Abr-Jun |
| Volumen: | 8 |
| Número: | 2 |
| Paginación: | 75-82 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Nota breve o noticia |
| Enfoque: | Experimental |
| Resumen en inglés | The aim of this study was to follow-up the physiological variations in the development of the bone tissue, associating them with the egg production curve. This study was carried out in the facilities of the Faculdade de Medicina Veterinária e Zootecnia of the UNESP, Botucatu, Brazil. Twenty-three families of Ross broiler breeders were used, each family consisting of 13 females and 1 male, distributed in 23 pens of 5.0m² each. The management was that recommended by the genetic company manual (Agroceres Ross, 2003), with daily feeding until 6th week of age; and birds were fed according to a 5:2 schedule (5 days fed, 2 days of fasting) between 7 and 17 weeks of age, returning to daily feeding starting at 18 weeks of age. Birds did not receive afternoon calcium supplementation. On the fourth week of rearing, 84 females were removed for bone analyses of the right tibia and femur, using optical densitometry in radiographic images technique. These analyses were sequentially carried out in 4, 8, 12, 15, 20, 24, 30, 35, 42, 47, and 52 week-old birds. The egg production curve of the birds was followed-up and associated to bone mineral density results. For bone mineral density evaluation (BMD) birds were divided by weight categories as light, intermediate, or heavy within each data age. BMD values of the tibias were not influenced by weight range, but by the age at collection. On the other hand, interactions were found among femur BMD values and weight and age categories. There was no correlation between eggshell quality and femur BM |
| Disciplinas: | Medicina veterinaria y zootecnia, Biología |
| Palabras clave: | Aves de corral, Anatomía e histología, Gallinas ponedoras, Huesos, Tibia, Fémur, Mineralización, Crecimiento |
| Keyword: | Veterinary medicine and animal husbandry, Biology, Poultry, Anatomy and histology, Animal physiology, Laying hens, Bones, Tibia, Femur, Mineralization, Growth |
| Texto completo: | Texto completo (Ver HTML) |
