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为探讨养殖褐牙鲆(Paralichthys olivaceus)亲鱼后代较野生亲鱼后代质量下降这一问题,本实验分析了野生与人工养殖(包括营养强化处理)褐牙鲆亲鱼肌肉、肝脏及卵中维生素A、维生素C、维生素E含量的差异,并进行了养殖褐牙鲆维生素营养强化的探索实验。结果显示,野生与养殖亲鱼肌肉和肝脏中维生素A含量无显著差异,野生亲鱼卵中维生素A含量显著高于养殖亲鱼(P<0.05);野生亲鱼肝脏和卵中维生素C含量显著高于养殖亲鱼(P<0.05),肌肉中两者无显著差异(P>0.05);维生素E含量在野生和养殖亲鱼各组织内均有显著差异(P<0.05),仅肝脏中养殖亲鱼显著低于野生亲鱼(P<0.05),其余组织均为养殖亲鱼较高。在本实验中,营养强化显著增加了养殖亲鱼肌肉和肝脏维生素A、维生素C及卵和肝脏中维生素E的含量,但对卵中维生素A和C的含量均无显著影响(P>0.05),而肌肉中维生素E含量则显著降低(P<0.05)。上述结果表明,养殖与野生褐牙鲆亲鱼卵中维生素A、C、E含量存在一定的差异,可能与养殖褐牙鲆亲鱼后代质量下降有关,本实验所采用的营养强化方法仅增加了养殖亲鱼卵中维生素E的含量,而对卵中维生素A和维生素C的含量无显著影响,更为有效的强化方式有待进一步研究。
In order to investigate the descendants of Paralichthys olivaceus broodstock, the offspring of progeny of Paralichthys olivaceus decreased compared with that of wild broodstock. The present study analyzed the effects of vitamin A and vitamin A on the muscle, liver and egg of brood stock (Paralichthys olivaceus) C, vitamin E content differences, and carried out the breeding of Avocado flounder nutrient enhancement experiments. The results showed that there was no significant difference in the content of vitamin A in the muscle and liver between broodstock and broodstock, and the content of vitamin A in broodstock was significantly higher than that of broodstock (P <0.05). The content of vitamin C in liver and egg of wild broodstock was significantly higher than that of broodstock (P <0.05). There was no significant difference between the two groups in muscle (P> 0.05). Vitamin E content was significantly different between wild and cultured broodstock (P <0.05) (P <0.05), the rest of the organizations are farmed broodstock higher. In this experiment, the nutrition enhancement significantly increased the content of vitamin A, vitamin C and vitamin E in eggs and liver of broodstock, but had no significant effect on the contents of vitamins A and C (P> 0.05) While the vitamin E content in muscle was significantly reduced (P <0.05). The above results showed that the contents of vitamin A, C and E in broiler oyster eggs of cultured and wild flounder were different from each other, which may be related to the decrease of the progeny quality of broodstock cultured broodstock. The nutrient fortification method used in this experiment only increased the broodstock Egg content of vitamin E, while the content of vitamin A and vitamin C in eggs no significant effect, a more effective way to be further studied.