Effect of dietary fatty acid pattern on growth, body fat composition and antioxidant parameters in broilers.
J Anim Physiol Anim Nutr (Berl)
; 92(3): 369-76, 2008 Jun.
Article
en En
| MEDLINE
| ID: mdl-18477319
ABSTRACT
The effects of dietary fat supplementation on performance, fatty acid (FA) composition of tissues and antioxidant defence system of broilers were studied. Male broilers were placed in 20 floor pens (60 broilers per pen). The broilers were fed by diets with added different energy sources lard (L); sunflower oil (SFO); soybean oil (SBO); and linseed oil (LSO). The treatments did not modify significantly growth performance and feed intake of the broilers. There was no effect of dietary FA pattern on reduced glutathione level and glutathione peroxidase activity of plasma, erythrocyte and liver samples. However, higher PUFA content of the diet resulted in a significant increase in malondialdehyde level of erythrocytes and liver. The broilers fed LSO diet more effectively maintained their antioxidant status with enhanced plasma radical scavenger capacity. FA composition in tissues reflected the FA pattern of the diets, although proportion of FAs with four or more double bonds was metabolic specific. LSO diet increased the level of C183, C205 and C226 in tissue lipids in relation to L, SFO and SBO diets. Significantly increased plasma radical scavenging capacity in concert with the enhanced C205 and C226 proportion in liver and muscle during LSO feeding indicate metabolic changes to counteract the oxidative injury. This may be related to the compounds produced after different biochemical pathways of n-6 and n-3 FAs.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Composición Corporal
/
Grasas Insaturadas en la Dieta
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Grasas de la Dieta
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Pollos
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Ácidos Grasos
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Antioxidantes
Límite:
Animals
Idioma:
En
Revista:
J Anim Physiol Anim Nutr (Berl)
Asunto de la revista:
CIENCIAS DA NUTRICAO
/
FISIOLOGIA
/
MEDICINA VETERINARIA
Año:
2008
Tipo del documento:
Article
País de afiliación:
Hungria