文章摘要
庞智予,刘锦龙,张瑜,赵真慧,柳森,赖晓芳,于飞,高焕.不同光照周期对脊尾白虾生长、性腺发育以及血淋巴生化成分的影响.渔业科学进展,2022,43(5):189-196
不同光照周期对脊尾白虾生长、性腺发育以及血淋巴生化成分的影响
Effects of different photoperiods on growth, gonadal development, and biochemical components of hemolymph in Exopalaemon carinicauda
投稿时间:2021-05-19  修订日期:2021-06-28
DOI:
中文关键词: 脊尾白虾  光照周期  性腺发育  血淋巴
英文关键词: Exopalaemon carinicauda  Photoperiod  Gonadal development  Hemolymph
基金项目:
作者单位
庞智予 江苏海洋大学海洋科学与水产学院 江苏 连云港 222005江苏海洋大学 江苏省海洋生物资源与环境 重点实验室 江苏 连云港 222005 
刘锦龙 江苏海洋大学海洋科学与水产学院 江苏 连云港 222005 
张瑜 江苏海洋大学海洋科学与水产学院 江苏 连云港 222005 
赵真慧 江苏海洋大学海洋科学与水产学院 江苏 连云港 222005江苏海洋大学 江苏省海洋生物资源与环境 重点实验室 江苏 连云港 222005 
柳森 江苏海洋大学海洋科学与水产学院 江苏 连云港 222005江苏海洋大学 江苏省海洋生物资源与环境 重点实验室 江苏 连云港 222005 
赖晓芳 江苏海洋大学海洋科学与水产学院 江苏 连云港 222005江苏海洋大学 江苏省海洋生物资源与环境 重点实验室 江苏 连云港 222005江苏省海洋生物产业技术协同创新中心 江苏 连云港222005江苏省 农业种质资源保护与利用平台 江苏 南京 210014 
于飞 连云港市海洋与渔业发展促进中心 江苏 连云港 222005 
高焕 江苏海洋大学海洋科学与水产学院 江苏 连云港 222005江苏海洋大学 江苏省海洋生物资源与环境 重点实验室 江苏 连云港 222005江苏省海洋生物产业技术协同创新中心 江苏 连云港222005江苏省 农业种质资源保护与利用平台 江苏 南京 210014 
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中文摘要:
      为探讨不同光照周期对脊尾白虾(Exopalaemon carinicauda)生长、性腺发育以及血淋巴生化成分的影响,本研究挑选体质量为(0.71±0.05) g、体长为(3.62±0.28) cm的脊尾白虾,在水温23~25℃、盐度22~24、pH 7.8~8.1、光照强度为1000 lx的养殖条件下,测定其在5种光照周期(全光照L、16L︰8D、12L︰12D、8L︰16D、全黑暗D,L表示光照时长,D表示黑暗时长)下的生长、性腺发育以及血淋巴生化成分等相关指标。结果显示,在存活率方面,全黑暗组最高[(86.67±5.77)%],其次为12L︰12D组[(83.33±8.82)%],再次为8L︰16D组[(80.00±3.33)%],3组之间无显著差异(P>0.05);在特定生长率方面,8L︰16D组的特定生长率为(2.49±0.20)%/d,显著高于全黑暗组(P<0.05);在蜕壳率方面,8L︰16D组蜕壳率最高,为(6.96±0.50)次/(尾·d)。性腺指数随光照时间的缩短逐渐增大,在光照时间为8L时达到最高值[(2.37±0.04)%],显著高于其他组(P<0.05);8L︰16D组卵巢成熟率为(42.93±4.57)%,显著高于全黑暗组(P<0.05);8L︰16D组卵巢相对长度在实验第30天时显著高于其他组(P<0.05)。8L︰16D组血淋巴蛋白质和胆固醇浓度显著高于全光照组、16L︰8D组和全黑暗组(P<0.05),与12L︰12D组无显著差异(P>0.05);8L︰16D组葡萄糖浓度显著高于全光照组和全黑暗组(P<0.05),与16L︰8D组和12L︰12D组差异不显著(P>0.05);8L︰16D组甘油三酯浓度显著高于其他组(P<0.05)。研究表明,不同光照周期对脊尾白虾生长、性腺发育以及血淋巴生化成分均产生不同程度的影响,8L︰16D是脊尾白虾亲虾促熟和工厂化养殖较为适宜的光照周期。
英文摘要:
      To investigate the effects of different photoperiods on the growth, gonadal development, and hemolymph biochemical composition in Exopalaemon carinicauda, samples with a mass of (0.71±0.05) g and body length of (3.62±0.28) cm were studied under a water temperature of 23~25℃, salinity of 22~24, pH of 7.8~8.1, and illumination intensity of 1000 lx. The growth, gonadal development, and hemolymph biochemical components were measured under five photoperiods (where L, illumination duration; D, dark duration; whole-day illumination L, 16L:8D, 12L:12D, 8L:16D, and whole-day dark D). Results showed that the D group had the highest numerical survival rate (86.67±5.77)%, followed by 12L:12D group, the survival rate was (83.33±8.82)%, the survival rate of group 8L:16D was (80.00±3.33)%, with no significant difference between these three groups (P>0.05). The specific growth rate of group 8L:16D was (2.49±0.20)%/d, significantly higher than that of group D (P<0.05). The molting rate of group 8L:16D was the highest [(6.96±0.50) sub/(tail·d)]. The gonadal index increased gradually with a decrease in illumination time, and reached the highest value at 8L:16D [(2.37±0.04)%], significantly higher than that in other groups (P<0.05). The ovarian maturation rate of group 8L:16D was (42.93±4.57)%, significantly higher than that in group D (P<0.05), and the relative length of the ovary in group 8L:16D was significantly higher than that in other groups on the 30th day (P<0.05). The levels of protein and cholesterol in the hemolymph of group 8L:16D were significantly higher than those of group L, group 16L:8D, or group D (P<0.05), but there was no significant difference with group 12L:12D (P<0.05). The glucose concentration of group 8L:16D was significantly higher than that of group L and group D (P<0.05), but there was no significant difference with group 16L:8D and group 12L:12D (P>0.05). The triglyceride concentration in group 8L:16D was significantly higher than that in the other groups (P<0.05). The results showed that the growth, gonadal development, and hemolymph biochemical components of E. carinicauda were affected by the photoperiods. 8L:16D was the most suitable photoperiod for E. carinicauda ripening and factory farming.
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