Effects of dietary n-6/n-3 polyunsaturated fatty acid ratios on the mass, and histological and ultrastructures of liver, spleen and thymus of 70-day-old Yangzhou goslings.
J Anim Physiol Anim Nutr (Berl)
; 100(2): 391-400, 2016 Apr.
Article
em En
| MEDLINE
| ID: mdl-26356013
ABSTRACT
The objective of this study was to determine the effects of dietary n-6/n-3 polyunsaturated fatty acid (PUFA) ratios on the organ indexes, and histological and ultrastructures of organs including liver, spleen and thymus in 70-day-old Yangzhou goslings. One-hundred and sixty 21-day-old Yangzhou goslings were randomly divided into 4 groups and fed 4 diets varying in the n-6/n-3 PUFA ratio from 31 up to 121. After 1-week acclimation, the feeding experiment lasted for 6 weeks. At the end of the experimental period, goslings were slaughtered and the liver, spleen and thymus were weighed, and their histological and ultrastructures were examined. The results showed that the organ indices in the 31 group were remarkably higher than in the other three groups, whereas the mitochondrial square did not differ among four groups. The histological and ultrastructures of the liver, spleen and thymus were not affected by the diets with the lower n-6/n-3 PUFA ratios (31 and 61). However, feeding diets with the higher n-6/n-3 PUFA ratios (91 and 121), the nuclear chromatin was concentrated and marginalized; the cell membrane was contracted inwardly and disrupted; the mitochondrial membrane was damaged to some degree. In conclusion, the diet containing higher content of n-3 PUFA might improve immune capacity of goslings the animal by accelerating the growth and maintaining cellular structures of organs like liver, spleen and thymus.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Baço
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Timo
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Ácidos Graxos Ômega-3
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Ácidos Graxos Ômega-6
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Anseriformes
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Fígado
Limite:
Animals
Idioma:
En
Revista:
J Anim Physiol Anim Nutr (Berl)
Assunto da revista:
CIENCIAS DA NUTRICAO
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FISIOLOGIA
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MEDICINA VETERINARIA
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
China