营养强化对雌性克氏原螯虾性腺发育及幼虾生长的影响
Effect of Enriching Broodstock on Gonad Development and Larval Quality of Female Procambarus clarkia
DOI: 10.12677/OJFR.2018.53018, PDF,  被引量    科研立项经费支持
作者: 倪国彬：崇明县水产技术推广站，上海；刘智俊：上海市水产技术推广站，上海
关键词: 克氏原螯虾；营养强化；性腺发育；Crayfish (Procambarus clarkia)； Enriching Broodstock； Gonad Development
摘要: 本实验系统研究了亲本营养强化培育对克氏原螯虾的卵巢及肝胰腺生化组成的影响，并比较了其生殖性能和初孵幼虾早期生长性能差异。结果表明：经过培育，营养强化组和对照组卵巢中水分含量、总蛋白含量和总糖含量相比实验开始时均有降低，脂类含量均有升高，并且营养强化组的脂类含量显著高于对照组，结合卵巢指数可知，营养强化能够显著加快克氏原螯虾的卵巢发育进程(P < 0.05)。营养强化组和对照组的卵巢肝胰腺指数相对起始略有上升，就生化组成来说，肝胰腺组织中水分含量显著下降，总脂和总蛋白含量显著上升，总糖含量下降，其中脂类含量营养强化组要高于对照组。营养强化组和对照组的抱卵量无显著差异，但强化组亲本存活率、怀卵率和平均单卵重均显著高于对照组。营养强化组的初孵幼虾的体长、体重及28 d生长率显著高于对照组，而单养实验表明，营养强化组幼虾的前三次蜕壳间期要显著短于对照组。
Abstract: A nutrition enrichment feeding experiment was conducted to evaluate the effect of nutrition enrichment on the biochemical composition, reproductive performance and larval quality of Procambarus clarkia. The results showed that: After a period of feeding, the contents of moisture, protein and carbohydrate were all found be decreased in the ovary of both enriched and control groups, but the lipid contents of both groups were all increased. Furthermore, the lipid content in ovary as well as the GSI of the enriched group were significantly higher than the control, which indicated that nutrition enrichment can promote the ovarian development obviously (P < 0.05). The HSI, GSI as well as the contents of lipid and protein in hepatopancreas of both groups were all decreased with significant differences in the lipid and protein contents, but the moisture and carbohydrate content of both groups were all obviously increased, and the lipid content of enriched group was markedly higher than the control. Though no significant difference was found in egg production between the two groups, the survival, vigorous rate and egg weight of the enriched group were significantly higher than the control. As for larval quality, the body length, weight and weight gain rate (WGR) of the enriched group were significantly higher than the control, and the enriched group revealed relatively shorter intermolt periods among the first three molts in the individual feeding experiment.
文章引用：倪国彬, 刘智俊, 黄志峰. 营养强化对雌性克氏原螯虾性腺发育及幼虾生长的影响[J]. 水产研究, 2018, 5(3): 155-160. https://doi.org/10.12677/OJFR.2018.53018

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