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首页> 外文期刊>Aquaculture Research >Effect of dietary protein and lipid levels on gonadal development of female redclaw crayfish Cherax quadricarinatus.
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Effect of dietary protein and lipid levels on gonadal development of female redclaw crayfish Cherax quadricarinatus.

机译：日粮蛋白质和脂质水平对雌性小爪小龙虾Cherax quadricarinatus性腺发育的影响。

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摘要

The effect of two crude dietary protein (26% and 32% P) and two lipid levels (4.7% and 12% L) on gonadal development of female redclaw crayfish Cherax quadricarinatus was determined. The gonadosomatic index (GSI), hepatosomatic index (HSI), biochemical composition of gonad and hepatopancreas, oocyte diameter and frequency of the developmental stage of oocytes were analysed. The GSI was significantly less using 26% P to 4.7% L. A significant interaction between P and L content was found for GSI. A significantly higher HSI value was obtained when L was 12%. P content in the hepatopancreas was significantly higher using 32% P and 4.7% L. The maximum L content in the hepatopancreas was obtained from the 32% P and 12% L diet. A significant interaction between P and L content was found for L content in the hepatopancreas. A higher frequency of post-vitellogenic oocytes was obtained with diets containing 32% P. There was an interaction between dietary P and L level causing lipid accumulation in the hepatopancreas and changes in GSI. For an optimum 32% P, excess dietary lipid is bioaccumulated in the hepatopancreas, indicating that there is excess available energy. When the P and L levels are restricted, there is a limited gonad development, thus affecting overall reproduction in female C. quadricarinatus.
机译：确定了两种粗饲料蛋白（26％和32％P）和两种脂质水平（4.7％和12％L）对雌性红爪小龙虾Cherax quadricarinatus性腺发育的影响。分析了性腺体指数（GSI），肝体指数（HSI），性腺和肝胰腺的生化成分，卵母细胞直径和卵母细胞发育阶段的频率。使用26％的P到4.7％的L，GSI显着减少。发现GSI的P和L含量之间存在显着的相互作用。当L为12％时，获得显着更高的HSI值。使用32％P和4.7％L时，肝胰腺中的P含量显着更高。从32％P和12％L的饮食中获得肝胰腺中的最大L含量。对于肝胰腺中的L含量，P和L含量之间存在显着的相互作用。含32％P的日粮会产生更高的产卵后卵母细胞。日粮P和L水平之间存在相互作用，导致肝胰腺脂质积聚和GSI改变。对于最佳的32％P，过量的膳食脂质会在肝胰腺中生物蓄积，表明存在过多的可用能量。当P和L水平受到限制时，生殖腺发育受到限制，从而影响雌性C. quadricarinatus的整体繁殖。

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