高度不饱和脂肪酸对中国对虾亲虾的产卵和卵质的影响

用高度不饱和脂肪酸组成和含量不同的四种饲料饲养中国对虾亲虾以研究高度不饱和脂肪酸对中国对韪亲虾产卵及卵质的影响。试验采用脂肪酸组成模式不同的Ｔｉ鱼油，亚麻油，玉米油和猪油为脂肪源配制的饲料对产卵前的亲虾进行６０天的投喂试验，测定了不同脂及到脂肪酸组成的饲料对亲虾产卵量，孵化率和卵脂肪酸组成的影响，并经回归分析结果表明，卵脂肪中的２０：５ω３与产卵量，２２：６ω３与孵化率有相关关系，表明了ＥＰＡ，Ｄ

EFFECTSOF HIGHLY UNSATURATED FATTY ACIDS IN BROODSTOCK DIETSON SPAWNING AND EGG QUALITY OF PENAEUS CHINENSIS

A feeding experiment was conducted to determine the effect of highly unsaturated fatty acids(HUFA)level in broodstock diet on spawning and egg quality of Chinese prawn(Penaeus chinensis).The effects of feeding four semi purified diets containing different lipid sources of different fatty acid profile (anchovy oil, linseed oil, corn oil and pork lard)on fecundity, egg hatchability and egg fatty acid compositions of Chinese prawn broodstock were compared with a fresh clam diet in a 60-day feeding trial .Good correlation between EPA content of egg lipid and egg productivity, and between DHA content of egg lipid and egg hatchability were observed.It suggests that EPA and DHA take important roles in reproduction of Chinese prawn and that 1.5% EPA and DHA content was recommended as a minimum level in broodstock diet.