Nutrient effects of broodstocks on the larvae in Patinopecten yessoensis

作     者：柏雨岑 张涛 邱天龙 高燕 张晓芳 

作者机构：Key Laboratory of Marine Ecology and Environmental Sciences Institute of Oceanology Chinese Academy of Sciences University of Chinese Academy of Sciences Tianjin Bohai Sea Fisheries Research Institute Zhangzi Island Fishery Group Ltd. 

出 版 物：《Chinese Journal of Oceanology and Limnology》 (中国海洋湖沼学报（英文版）)

年 卷 期：2015年第33卷第4期

页      面：988-996页

核心收录：

学科分类：090502[农学-动物营养与饲料科学] 0905[农学-畜牧学] 09[农学] 

基　　金：Supported by the National Key Technology R&D Program of China(No.2011BAD13B05) the Agricultural Science and Technology Achievements Transformation Projects(No.2012GB24910656) the Special Program of Chinese Academy of Sciences for Strategic Advanced Science and Technology(No.XDA11020404) the National Special Research Fund for Non-Profit Marine Sector(No.201305043) 

主　　题：Patinopecten yessoensis nutrient composition fatty acids larvae broodstocks gonads 

摘      要：Patinopecten yessoensis is a commercial valuable species. This study deals with the effect of nutrient effects of the broodstock(mainly ovaries) on the larvae. Concentrations of total carbohydrate, total protein and total lipid in the gonads of P. yessoensis from three Hatcheries(Hatchery 1, Hatchery 2, and Hatchery 3) were determined before and after spawning. The relationship between the nutrient concentration in ovaries before spawning(BC) and that of larvae(LC) was assessed as well as the change in nutrient levels in ovaries after spawning(DC). Results indicate that the BC of total carbohydrate(7.66%) and total lipid(14.48%) in ovaries were significantly higher than in testes(5.20%, 5.20% respectively), whereas the BC of total protein in the ovaries was lower(61.76%) than in the testes(81.67%). The different gonadal composition suggests the different nutrient demands between male and female broodstocks in breeding season. P atinopecten yessoensis gonads contained a higher proportion of lipids, in comparison to other bivalves, which might be a response to the low ambient water temperatures. Further analysis of fatty acids showed that the concentrations of n-3PUFA, EPA and DHA in larvae(LC) were positively correlated with BC and DC, indicating the significant nutrient influence of broodstocks on the larvae. As these fatty acids are important in metabolism, and have been demonstrated to be influential to the viability of the larvae, larval growth and the settlement, spat growth, and juvenile survival in many bivalves, they could possibly be used as indexes to evaluate, and predict condition of broodstocks and larvae.