Improvement of fish and pearl yields and nutrient utilization efficiency through fish–mussel integration and feed supplementation》.pdf

Aquaculture 448 (2015) 321–326 Contents lists available at ScienceDirect Aquaculture journal homepage: www. elsevi er. com/ locate /aqua-online Improvement of fish and pearl yields and nutrient utilization efficiency through fish–mussel integration and feed supplementation Jin-Yu Tang a, Yang-Xin Dai a, Yan Wang b,⁎, Jian G. Qin c, You-Ming Li a a College of Animal Sciences, Zhejiang University, Hangzhou 310058, Zhejiang Province, China b Ocean College, Zhejiang University, Hangzhou 310058, Zhejiang Province, China c School of Biological Sciences, Flinders University, GPO Box 2100, Adelaide, SA 5001, Australia a r t i c l e i n f o a b s t r a c t Article history: A 153-day experiment was conducted in land-based enclosures to explore the efficacy of fish–mussel integration Received 21 July 2014 in pearl yield, fish yield and nutrient utilization. The freshwater mussel Hyriopsis cumingii were integrated with Received in revised form 14 May 2015 either a four-fish species combination (grass carp, gibel carp, silver carp and bighead carp) or a two-fish species Accepted 19 May 2015 combination (silver carp and bighead carp). Fish in each combination received either formulated feed supple- Available online 24 May 2015 mentation or no formulated feed. Fish yield, nitrogen utilization efficiency and wastes of nitrogen and phospho- rus were higher in the enclosures received formula