Effects of broodstock density and diet on reproduction and juvenile culture of the leech, Hirudinaria manillensis Lesson, 1842
Zhang, B; Lin, Q; Lin, JD; Chu, XL; Lu, JY; linqiangzsu@163.com
2008
发表期刊AQUACULTURE
ISSN0044-8486
卷号276期号:40547页码:198-204
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.
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
关键词Leech Hirudinaria Manillensis Density Growth Survivorship Reproduction
学科领域Fisheries ; Marine & Freshwater Biology
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收录类别sci
资助项目LED
WOS记录号WOS:000255791700024
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/6015
专题热带海洋环境国家重点实验室(LTO)
通讯作者linqiangzsu@163.com
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Zhang, B,Lin, Q,Lin, JD,et al. Effects of broodstock density and diet on reproduction and juvenile culture of the leech, Hirudinaria manillensis Lesson, 1842[J]. AQUACULTURE,2008,276(40547):198-204.
APA Zhang, B,Lin, Q,Lin, JD,Chu, XL,Lu, JY,&linqiangzsu@163.com.(2008).Effects of broodstock density and diet on reproduction and juvenile culture of the leech, Hirudinaria manillensis Lesson, 1842.AQUACULTURE,276(40547),198-204.
MLA Zhang, B,et al."Effects of broodstock density and diet on reproduction and juvenile culture of the leech, Hirudinaria manillensis Lesson, 1842".AQUACULTURE 276.40547(2008):198-204.
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