Molecular Nutrition

Effects of Sea Buckthorn Pomace on Growth Performance, Organ Indexes, Serum Physiological Parameters and Intramuscular Fatty Acid Composition of Fattening Lambs

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  • 1. College of Animal Science and Technology, Shanxi Agricultural University, Taigu 030801, China;
    2. Animal Husbandry Bureau of Youyu County, Youyu 037200, China

Received date: 2017-04-17

  Online published: 2017-09-28

Abstract

The objective of the this study was to investigate the effects of dietary sea buckthorn pomace on growth performance, organ indexes, serum physiological parameters and intramuscular fatty acid composition of fattening lambs. Twenty-four 4-month-old Dorper×small thin-tailed crossed ram lambs[(25±1) kg] were selected and randomly divided into four groups with 6 sheep per group. Sheep in the four groups were fed the experimental diets which contained 0 (control), 10%, 20% and 30% sea buckthorn pomace, respectively. The experiment lasted for 50 days. The results showed as follows:1) the slaughter body weight of lambs in 10% and 20% groups was significantly higher than that in control group and 30% group (P<0.05), the average daily gain of lambs in 10% group was significantly higher than that in other groups (P<0.05), the average daily feed intake of lambs in 20% group was significantly higher than that in other groups (P<0.05), the ratio of feed to gain of lambs in 10% group was significantly lower than that in other groups (P<0.05). 2) The liver and spleen indexes of lambs in 30% group were significantly higher than those in other groups (P<0.05), and the reticulum stomach index was significantly lower than that in other groups (P<0.05). The large intestine and small intestine indexes of lambs in 10%, 20% and 30% groups were significantly higher than those in control group (P<0.05). 3) The serum high density lipoprotein (HDL) content of lambs in 30% group was significantly higher than that in other groups (P<0.05), the atherosclerosis index (AI) of lambs in 10%, 20% and 30% groups was significantly lower than that in control group (P<0.05), the total antioxidant capacity (T-AOC) and activities of glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) in serum of lambs in 10%, 20% and 30% groups were significantly higher than those in control group (P<0.05), the activities of aspartate transaminase (AST), alanine aminotransferase (ALT), lactate dehydrogenase (LDH) and contents of creatinine (CRE) and urea nitrogen (UN) in serum of lambs in 30% group were significantly higher than those in other groups (P<0.05). 4) The proportions of linoleic acid, trans oleic acid, peanut four acid, total monounsaturated fatty acids (∑MUFA) and total unsaturated fatty acids (∑UFA) in longissimus dorsi of lambs in 10%, 20% and 30% groups were significantly higher than those in control group (P<0.05), while the proportions of oleic acid, total saturated fatty acids (∑SFA) and total polyunsaturated fatty acids (∑PUFA) were significantly lower than those in control group (P<0.05). In conclusion, dietary supplemented with sea buckthorn pomace is beneficial to improve the growth development and growth performance of fattening lambs, and the optimal supplemental level is 10% to 20%.

Cite this article

XIN Xiaobin, ZHAO Junxing, JIN Yaqian, LIU Wenzhong, REN Youshe, ZHANG Chunxiang, ZHANG Wenjia, XIANG Binwei, ZHANG Jianxin . Effects of Sea Buckthorn Pomace on Growth Performance, Organ Indexes, Serum Physiological Parameters and Intramuscular Fatty Acid Composition of Fattening Lambs[J]. Chinese Journal of Animal Nutrition, 2017 , 29(10) : 3676 -3686 . DOI: 10.3969/j.issn.1006-267x.2017.10.030

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