Effects of Dietary Supplementation of Phoenix Tree Seed Oil and Rosiglitazone on Tissue Composition and Contents of Fatty Acids of Sheep

SHI Xiaoxue, NIU Zhanyu, XING Chao, ZHANG Sanrun, YAN Wanshu, ZHANG Runhou

doi:10.3969/j.issn.1006-267x.2018.06.037

2018 , Vol. 30 >Issue 6: 2328 - 2336

DOI: https://doi.org/10.3969/j.issn.1006-267x.2018.06.037

Molecular Nutrition

Effects of Dietary Supplementation of Phoenix Tree Seed Oil and Rosiglitazone on Tissue Composition and Contents of Fatty Acids of Sheep

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1. College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China;
2. Department of Basic Education, Inner Mongolia Medical University, Hohhot 010110, China

Received date: 2017-11-22

Online published: 2018-06-20

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Abstract

The objective of this study was to investigate the effects of dietary supplementation of SCD inhibitor (phoenix tree seed oil) and accelerator (rosiglitazone) on fatty acid composition and contents in Longissimus dorsi muscle and subcutaneous fat of sheep. Eighteen crossbreed ram (Merino sheep×thin-tail Han sheep♀), similar in body weight[(27.71±2.64) kg] and body condition, were randomly divided into 3 groups with 6 sheep per group. Sheep in control group (C group) were fed a basal diet+4.8% linseeds; those in phoenix tree seed oil group (W group) were fed the C group diet supplemented with 15 g/d phoenix tree seed oil; those in rosiglitazone group (L group) were fed the C group diet supplemented with 8 mg/d rosiglitazone. The trial period lasted for 50 d consisting 10 d of transition period, 5 d of pretrial period and 35 d of trial period. The results showed as follows:1) compared with C group, W group had significantly higher contents of trans-11 C18:1 and trans-9, 12 C18:2 and significantly lower contents of C18:3 (n-6) in Longissimus dorsi muscle (P<0.05), and had significantly higher C20:1 content in subcutaneous fat (P<0.05), while other fatty acid contents were not significantly changed (P>0.05); 2) compared with C group, L group had significantly higher contents of trans-11 C18:1, trans-9, 12 C18:2, cis-9, trans-11 conjugated linoleic acid (CLA) and polyunsaturated fatty acid (PUFA)and PUFA/saturated fatty acid (SFA), and significantly lower C18:3 (n-6) and SFA contents in Longissimus dorsi muscle (P<0.05), and had significantly higher contents of C10:0, cis-9 C18:1 and C20:3 (n-3) in subcutaneous fat (P<0.05). The results indicate that dietary supplementation of phoenix tree seed oil increases contents of trans-11 C18:1 and trans-9, 12 C18:2 and decreased the content of C18:3 (n-6) in Longissimus dorsi muscle, and increases the content of C20:1 in subcutaneous fat; dietary supplementation of rosiglitazone increases the content of trans-11 C18:1, trans-9, 12 C18:2 and cis-9,trans-11 CLA and decreased the content of C18:3 (n-6) in Longissimus dorsi muscle, and increases contents of C10:0, cis-9 C18:1 and C20:3 (n-3) in subcutaneous fat.

Key words： phoenix tree seed oil; rosiglitazone; stearoyl-CoA desaturase; fatty acid; sheep

Cite this article

SHI Xiaoxue, NIU Zhanyu, XING Chao, ZHANG Sanrun, YAN Wanshu, ZHANG Runhou . Effects of Dietary Supplementation of Phoenix Tree Seed Oil and Rosiglitazone on Tissue Composition and Contents of Fatty Acids of Sheep[J]. Chinese Journal of Animal Nutrition, 2018 , 30(6) : 2328 -2336 . DOI: 10.3969/j.issn.1006-267x.2018.06.037

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