ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2019, Vol. 50 ›› Issue (7): 1424-1432.doi: 10.11843/j.issn.0366-6964.2019.07.011

• ANIMAL NUTRITION AND FEEDS • Previous Articles     Next Articles

Effect of Broussonetia papyrifera L. (Paper mulberry) Silage on Growth Performance, Biochemical Indexes of Serum and Fatty Acid Composition in the Longissimus dorsi Muscle in Dorper×Thin-tailed Han Crossbred Sheep

SI Bingwen1, XU Wencai2, GUO Jiangpeng4, CUI Kai1, WANG Shuyan3, TU Yan1, DIAO Qiyu1*   

  1. 1. Key Laboratory of Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute of Chinese Academy of Agricultural Sciences, Beijing 100081, China;
    2. Beijing Jonathan Technology Development Co. Ltd., Beijing 101309, China;
    3. Miyun District Animal Health Supervision and Administration Bureau, Beijing 101500, China;
    4. Beijing AnimaL Husbandry Station, Beijing 100029, China
  • Received:2018-12-21 Online:2019-07-23 Published:2019-07-23

Abstract: The aim of this study was to investigate the effect of broussonetia papyrifera L. (Paper mulberry) silage on growth performance, biochemical indexes of serum and fatty acid composition in the longissimus dorsi muscle of Dorper×Thin-tailed Han crossbred sheep. Ninety-six healthy sheep weighted (26±2.5) kg on 3 months old were allocated into 4 groups with 24 sheep per group, 12 male sheep and 12 female sheep in each group. The sheep in control group (A) were fed the diet without Paper mulberry silage, the sheep in experimental group (B, C and D) were fed the diets with 15%, 30% and 45% (dry matter basis) Paper mulberry silage, respectively. The experiment lasted for 70 d. The results showed that:1) Paper mulberry silage was very palatable to sheep, increased dry matter intake. The average daily gain (ADG) and dry matter intake (DMI) of D group were significantly higher than that of A and B groups (P<0.05); 2) Compared with control group, Paper mulberry silage promoted the immunity and antioxidation capacity of sheep, the content of IgA, IgG and IgM in serum of D group were significantly higher than those of A and B groups (P<0.05), the total antioxidant capacity (T-AOC) and activity of catalase (CAT) of serum in D group were significantly higher than those in A group (P<0.05), the content of malondialdehyde (MDA) of D group was significantly lower than that of A group (P<0.05); 3) The addition of Paper mulberry silage to the diet increased the content of n-3 polyunsaturated fatty acids (n-3 PUFA) in the longissimus dorsi muscle of sheep, and the content of n-3 PUFA of B,C,D groups was significantly higher than that of A group (P<0.05). The results showed that Paper mulberry silage supplementation might improve the growth performance, immunity and antioxidant capacity of sheep, was good for the health of sheep, meanwhile, the content of n-3 PUFA in the longissimus dorsi muscle of sheep increased and the fatty acids composition in muscle was improved. D group had the most significant effects in the 3 silage addition groups.

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