Immunocompetence and its costs during development: an experimental study in blue tit nestlings.
Proc Biol Sci
; 271 Suppl 3: S110-3, 2004 Feb 07.
Article
em En
| MEDLINE
| ID: mdl-15101435
ABSTRACT
The allocation into T-cell-mediated immunocompetence was experimentally increased in 68 out of 139 nestlings by supplementary feeding methionine to half of the nestlings in 15 blue tit nests. Methionine-supplemented nestlings had an increased T-cell-mediated immunocompetence, but a reduced growth compared with control siblings. Nestlings that had low initial weights and nestlings that were supplemented with methionine had an increased mortality risk. The investment that nestling blue tits make in immunocompetence appears to be tightly controlled by survival costs paid through a trade-off between immunocompetence and growth.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Linfócitos T
/
Aves Canoras
/
Imunocompetência
Tipo de estudo:
Health_economic_evaluation
Limite:
Animals
País/Região como assunto:
Europa
Idioma:
En
Revista:
Proc Biol Sci
Assunto da revista:
BIOLOGIA
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
Finlândia