Influence of early qualitative feed restriction and environmental temperature on long bone development of broiler chickens |
| |
Authors: | L.D.G. Bruno B.C. Luquetti R.L. Furlan M. Macari |
| |
Affiliation: | 1. Departamento de Zootecnia—Universidade Estadual de Maringá—87020-900—Maringá, Paraná, Brazil;2. Universidade Estadual Paulista UNESP, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, São Paulo, Brazil |
| |
Abstract: | This investigation was carried out to study the influence of early qualitative feed restriction and environmental rearing temperature on long bone development in broiler. Energy and protein restriction reduced femur width and humerus weight, but did not affect tibia parameters. Broilers kept at cold environmental temperature showed reduced femur, tibia and humerus length and tibia weight, but the calculated density was not affected by rearing temperature. These findings suggest that qualitative feed restriction and environmental temperature influenced the normal long bone growth; however, bone weight/bone length index (calculated density) was not affected by rearing temperature. |
| |
Keywords: | Bone growth Broiler Environmental temperature Energy and protein restriction |
本文献已被 ScienceDirect 等数据库收录! |
|