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首页> 外文期刊>Aquaculture Reports >Egg quality traits and predictors of embryo and fry viability in red snapper Lutjanus campechanus
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Egg quality traits and predictors of embryo and fry viability in red snapper Lutjanus campechanus

机译：红鲷鱼Lutjanus campechanus的卵品质特征及其胚和油炸活力的预测因子

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The quality of red snapper eggs is highly variable and unpredictable in aquaculture, leading to high mortality during early larval rearing. In this work, the viability of red snapper eggs was monitored from fertilization until unfed larvae expired because of exhaustion of vitelline reserves to determine egg quality traits in this species. The spawns were obtained via strip spawning wild-caught females following hormonal induction with chorionic gonadotropin. Females were induced immediately after capture (wild group, n=17) or held captive for the entire maturation period prior to induction (captive group, n=7). Candidate predictors of egg quality measured on the female parent at the time of induction or on the spawn at ovulation were evaluated using correlation and multiple regression analysis. The fertilization rate, the hatching rate, and the duration of survival of unfed larvae post hatch were weakly correlated to each other (-0.23
机译：红鲷鱼卵的质量在水产养殖中具有很大的可变性和不可预测性，导致早期幼体饲养期间的高死亡率。在这项工作中，从受精开始监测红鲷鱼卵的生存力，直到未进食的幼虫期满，因为卵黄素储备不足，以确定该物种的卵品质性状。通过绒毛膜促性腺激素激素诱导后，通过条带产卵的野生雌性获得卵。雌性在捕获后立即被诱导（野生型，n = 17）或在诱导前整个成熟期被俘虏（俘虏组，n = 7）。使用相关性和多元回归分析评估了雌性母本在诱导时或排卵时产卵量的预测指标。孵化后未喂食幼虫的受精率，孵化率和存活时间之间的相关性很弱（-0.23

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