Article
Phenotypic selection for residual feed intake and its effect on humoral immune responses in growing layer hens.
Poultry science - 1 Sept 2004
Van Eerden E, Van Den Brand H, Parmentier H K, De Jong M C M, Kemp B
Abstract excerpt
According to the resource allocation theory, animals have to make a trade-off between resource-demanding life traits to obtain maximal fitness. Artificial selection toward efficient producing farm animals, however, may have created animals that have an impaired ability to divert resources to maintenance processes, such as responding to immune challenges. Residual feed intake (RFI), defined as the difference...
Topics
- Animal Feed
- Animals
- Antibodies, Bacterial
- Antibody Formation
- Chickens
- Eating
- Enzyme-Linked Immunosorbent Assay
- Female
- Growth
- Hemocyanins
- Lipopolysaccharides