Sea Buckthorn Pomace Supplementation in the Diet of Growing Pigs-Effects on Fatty Acid Metabolism, HPA Activity and Immune Status.
Int J Mol Sci
; 19(2)2018 Feb 21.
Article
in En
| MEDLINE
| ID: mdl-29466282
ABSTRACT
There is evidence that sea buckthorn, as a source of n-3 polyunsaturated fatty acids (n-3 PUFA), possesses health-enhancing properties and may modulate neuroendocrine and immune functions. In the present study, we investigated the effect of sea buckthorn pomace (SBP) supplementation in the diet of growing German Landrace pigs on fatty acids in the blood and hypothalamus, peripheral immune parameters and mRNA expression of corticotropin-releasing hormone (CRH), mineralocorticoid receptor (MR) and glucocorticoid receptor (GR) in the hypothalamus and spleen. Pigs were fed diets supplemented with 12% of dried SBP or 0% SBP (control group) over an intervention period of eight weeks. The fatty acid profiles in blood plasma were significantly affected by SBP supplementation only for C182n-6 and n-6/n-3 PUFA ratio compared with the control group. SBP supplementation did not significantly affect the fatty acid concentrations in the hypothalamus. Furthermore, there were no significant differences in mRNA expression of CRH, MR and GR in the hypothalamus or of GR mRNA expression in the spleen. Concerning the immune status, the plasma IgG levels tended to be higher in SBP pigs, whereas the leukocyte distribution, mitogen-stimulated lymphocyte proliferation, and serum IgM levels remained unchanged. In conclusion, the SBP supplementation of the diet only caused moderate effects on fatty acid metabolism, but no significant effects on hypothalamic-pituitary-adrenal (HPA) activity and immunity in growing pigs. It seems that a beneficial effect of dietary n-3 PUFA on health and welfare is more likely to be expected during stressful situations.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Pituitary-Adrenal System
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Dietary Supplements
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Hippophae
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Diet
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Lipid Metabolism
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Fatty Acids
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Hypothalamo-Hypophyseal System
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Immunity
Limits:
Animals
Language:
En
Journal:
Int J Mol Sci
Year:
2018
Document type:
Article
Affiliation country: