Effects of broodstock density and diet on reproduction and juvenile culture of the leech, Hirudinaria manillensis Lesson, 1842

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	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
刊名	AQUACULTURE
	2008
卷号	276 期号:40547 页码:198-204
关键词	leech Hirudinaria manillensis density growth survivorship reproduction
ISSN号	0044-8486
通讯作者	linqiangzsu@163.com
中文摘要	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.
学科主题	Fisheries; Marine & Freshwater Biology
收录类别	SCI
原文出处	40663
WOS记录号	WOS:000255791700024
公开日期	2011-07-03
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/6015]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	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.(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.