论文部分内容阅读
在市场上,雄甲鱼的销路和售价均比雌甲鱼好(雄150元/500g、雌60~80元/500g),这是因为雄甲鱼的滋补、营养价值高。在人工养成阶段,也发现雄甲鱼生长快于雌甲鱼。调查和试验进一步证实雄的不仅在生长速度上要优于雌的(温室养殖14个月,雄的平均达700g,雌的平均500g),而且在抗病率、成活率、料肉比和在养殖密度上,都比雌性要好,
In the market, the sales price and price of herring turtle are better than the female pigeon (male 150 yuan / 500g, female 60-80 yuan / 500g), this is because the tilapia nourishing, high nutritional value. During the period of artificial breeding, the herring turtle also grew faster than the female turtle. Surveying and testing further confirmed that male is not only superior to female in growth rate (14 months in greenhouse, average 700g in male and 500g in female), but also in disease resistance, survival rate, Breeding density, better than the female,