? Effect of dietary supplementation with mulberry (<em>Morus alba</em> L.) leaves on the growth performance, meat quality and antioxidative capacity of finishing pigs
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    2019, Vol. 18 Issue (01): 143-151     DOI: 10.1016/S2095-3119(18)62072-6
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Effect of dietary supplementation with mulberry (Morus alba L.) leaves on the growth performance, meat quality and antioxidative capacity of finishing pigs
ZENG Zhu, JIANG Jun-jie, YU Jie, MAO Xiang-bing, YU Bing, CHEN Dai-wen
Key Laboratory for Animal Disease-Resistant Nutrition, Ministry of Education/Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, P.R.China
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Abstract 
The present study was conducted to evaluate the effect of dietary mulberry (Morus alba L.) leaves powder (MLP) supplementation on meat quality of finishing pigs.  A total of 40 Duroc×Landrace×Yorkshire pigs (initial body weight of (40.5±0.63) kg) were randomly allotted into two treatments, fed either with control diet or 15% MLP diet for 85 d.  The results showed that MLP diet decreased (P≤0.05) average daily gain (ADG) and increased (P<0.05) feed/gain ratio (F/G) in the finishing and whole period.  MLP diet also decreased (P<0.05) carcass weight, dressing percentage, last rib and average backfat depth.  However, MLP diet increased (P<0.05) intramuscular fat (IMF) content, decreased (P<0.05) shear force, cooking loss and drip loss.  In addition, MLP diet increased (P<0.05) total antioxidative capacity, glutathione peroxidase and tended (P<0.10) to increase total superoxide dismutase in serum.  In longissimus thoracis, myosin heavy chain (MyHC) I and IIa mRNA levels were increased (P≤0.05) for MLP diet.  In conclusion, 15% MLP supplementation reduced the growth performance and carcass traits, but improved meat quality of finishing pigs possibly through the change of myofiber characteristics, enhancement of antioxidative capacity and increase of IMF. 
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Articles by authors
ZENG Zhu
JIANG Jun-jie
YU Jie
MAO Xiang-bing
YU Bing
CHEN Dai-wen
Key wordsmulberry leaves powder     meat quality     myofibers     antioxidation     pigs     
Received: 2018-02-26; Accepted: 2018-08-28
Fund: Key Laboratory for Animal Disease-Resistant Nutrition, Ministry of Education/Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, P.R.ChinaThis work was supported by the earmarked fund for China Agriculture Research Syatem (CARS-35) and the Key Technology Research and Integration Demonstration of Modern Pig Industry Chain in Sichuan, China (2016NZ0006).
Corresponding Authors: Correspondence CHEN Dai-wen, Tel/Fax: +86-835-2885106, E-mail: dwchen@sicau.edu.cn    
About author: ZENG Zhu, E-mail: zengzhu123@hotmail.com;
Cite this article:   
ZENG Zhu, JIANG Jun-jie, YU Jie, MAO Xiang-bing, YU Bing, CHEN Dai-wen. 2019. Effect of dietary supplementation with mulberry (Morus alba L.) leaves on the growth performance, meat quality and antioxidative capacity of finishing pigs. Journal of Integrative Agriculture, 18(01): 143-151.
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http://www.chinaagrisci.com/Jwk_zgnykxen/EN/ 10.1016/S2095-3119(18)62072-6      or     http://www.chinaagrisci.com/Jwk_zgnykxen/EN/Y2019/V18/I01/143
 
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