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学科主题: Fisheries; Marine & Freshwater Biology
题名: Effects of broodstock density and diet on reproduction and juvenile culture of the leech, Hirudinaria manillensis Lesson, 1842
作者: Zhang, B ; Lin, Q ; Lin, JD ; Chu, XL ; Lu, JY
通讯作者: linqiangzsu@163.com
关键词: leech ; Hirudinaria manillensis ; density ; growth ; survivorship ; reproduction
刊名: AQUACULTURE
发表日期: 2008
卷: 276, 期:40547, 页:198-204
收录类别: sci
部门归属: [Lin, Qiang] Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Trop Marine Environm Dynam, Guangzhou 510301, Guangdong, Peoples R China; [Zhang, Bin; Chu, Xialing; Lu, Junyi] Sun Yat Sen Zhongshan Univ, State Key Lab Biocontrol, Inst Aquat Econ Anim, Guangzhou 510275, Guangdong, Peoples R China; [Zhang, Bin; Chu, Xialing; Lu, Junyi] Sun Yat Sen Zhongshan Univ, Guangdong Provincial Key Lab Aquat Econ Anim, Guangzhou 510275, Guangdong, Peoples R China; [Lin, Qiang; Lin, Junda] Florida Inst Technol, Vero Beach Marine Lab, Vero Beach, FL 32963 USA
项目归属: LED
摘要: The leech Hirudinaria manillensis, Lesson 1842 is of much interest for clinical and medicinal use. In this study, the effect of broodstock density (5, 10, 15, 20, 25, 30 and 50 ind tank(-1)) on the reproductive efficiency of H. manillensis was examined. After 4 months of culture, the number of cocoons produced was significantly different among the different broodstock densities (F-6,F-34=4.560, P<0.05), but fertilization ratio was not (F-6,F-34=1.319, P=0.285). The average number of hatchlings per cocoon (5.72 +/- 0.13 ind) and hatching rate (96.82 +/- 11.31%) of the cocoons in the 5 ind tank(-1) treatment were significantly higher than those of the other treatments. The 50 ind tank(-1) treatment had the highest mortality of parent leeches (29.60 +/- 2.48%). The size and wet weight of the cocoons were significantly different among the treatments, with the 5 ind tank(-1) treatment having the largest cocoon size (standard length and diameter) and wet weight. The time of juvenile release from the cocoons did not differ significantly among the different broodstock densities (P>0.05). The effect of diet (FT1: live bullfrog, FT2: fresh cattle blood, and two blood plasma preparations FT3: NP-2002a and FT4: NP-2002b) on the feeding, growth and survivorship of the juvenile leeches was also studied. After 2 months of culture, juveniles in the FT2 (fresh cattle blood) treatment had the highest total food intake (13.11 +/- 0.07 g). Juveniles in the FT3 (NP-2002a) and FT1 (live bullfrog) treatments had a significantly high feeding ratio 95.00 +/- 1.16% and 91.33 +/- 1.20%, respectively. Percentage weight gain (WG) and specific growth rate (SGR) of the juveniles in the treatment FT4 (NP-2002b) were the lowest, at 168.52 +/- 115.82% and 1.64 +/- 0.10%, respectively. Juveniles in the FT3 (NP-2002a) and FT4 (NP-2002b) treatments had the highest survival rates, at 96.00 +/- 0.58% and 84.33 +/- 10.88%, respectively. (c) 2008 Elsevier B.V All rights reserved.
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WOS记录号: WOS:000255791700024
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/6015
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Zhang, B; Lin, Q; Lin, JD; Chu, XL; Lu, JY.Effects of broodstock density and diet on reproduction and juvenile culture of the leech, Hirudinaria manillensis Lesson, 1842,AQUACULTURE,2008,276(40547):198-204
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