Effects of dietary sesame oil on growth performance and fatty acid composition of muscle and tail fat in fattening Chaal lambs

• Published in: Animal feed science and technology 2016-10, Vol.220, p.216-225
• Main Authors: Ghafari, H., Rezaeian, M., Sharifi, S.D., Khadem, A.A., Afzalzadeh, A.
• Format: Article
• Language: English
• Subjects: Chaal lambs; Conjugated linoleic acid; Sesame oil
• ISSN: 0377-8401; 1873-2216
• DOI: 10.1016/j.anifeedsci.2016.08.006

•Sesame oil (SO) feeding did not affect lamb performance, but increased kidney fat.•SO feeding increased the serum total cholesterol and high density lipoproteins.•SO feeding decreased the molar ratio of ruminal propionate.•SO feeding improved the concentration of CLA cis-9, trans-11 in meat and tail fat. This experiment was carried out to study the effect of sesame oil (SO) supplementation on performance and fatty acid composition of meat and tail fat in Iranian Chaal lambs. Eighteen lambs were fed one of the three isocaloric and isonitrogenous diets containing 0 (control), 25 and 50g SO per kilogram diet in a completely randomized design for 84 days. There were no substantial effects on animal performance and their carcass and non-carcass measurements, except for kidney fat weight which linearly increased (P=0.05) by increasing level of SO. Supplementation of SO was resulted a decrease in the molar ratio of ruminal propionate (P=0.01), whereas the ruminal acetate:propionate ratio (P=0.03), serum total cholesterol (P=0.01) and high density lipoproteins (HDL) were increased linearly (P