The effects of food and salinity on energy budget of juvenile shrimp of Penaeus chinensis
ZHANG Shuo1, DONG Shuang-lin2
1. Key Laboratory of Maricultural Ecology, Ministry of Agriculture, PRC, Dalian Fisheries Univ., Dalian 116023, China; 2. Aquaculture Open Research Laboratory, Ocean University of Qingdao, Qingdao 266003, China
Abstract: The energy budget of Chinese prawn Penaeus chinensis collected from culture pond,were studied in feeding polychaete worm under 5 levels of salinity(5,13,20,28 and 35), and in feeding different foods(Polychaete worm and formulated diet)at temperature 25℃ . The experimental results showed as follows:1. The maximum food consumption rates were 13.5%(dry matter)and 58.7%(wet matter)at salinity 13,and the minimum rates were 11.5%(dry matter)and 49.8%(wet matter)at salinity 5; 2. The prawn at salinity 20 grew significantly faster than those at 5, 13, 28, and 35, and energy conversion efficien-cy was the highest(27%)(p< 0.01); The intermolt periods of shrimp were 6.2 days,4.8 days,4.7 days,4.9 days and 4.8 days at salinity 5, 13, 20, 28 and 35, respectively. The best growth was mainly attributed to larger food consumption and the highest matter and en-ergy conversion at salinity 20; 3. The consumption energy and partitions of allocated to ex-cretion, exuvia and respiration of the prawn fed polychaete worm were not significantly dif-ferent from those of shrimps fed formulation; The energy allocated to growth was 23.24% in feeding polychaete worm,and was significantly larger than thatof 17.55% in feeding for-mulated diet; The partitions of fecal energy in feeding polychaete worm was 3.67% smaller than that of 11.08% in feeding formulated diet.
张硕, 董双林. 饵料和盐度对中国对虾幼虾能量收支的影响[J]. 大连海洋大学学报, 2002, 17(3): 227-233.
ZHANG Shuo, DONG Shuang-lin. The effects of food and salinity on energy budget of juvenile shrimp of Penaeus chinensis. Journal of Dalian Ocean University, 2002, 17(3): 227-233.
2002, Vol. 17 
