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异育银鲫亲鱼饲养和繁殖管理中,最大难题就是如何控制流产。为探索这一制种技术,我们经近十年的摸索总结,采取综合技术措施,取得明显成效,现将主要技术措施介绍如下: 一、严格选留亲鱼亲鱼要求体质健壮,无病无伤,鳞片完整,个体均匀。雌鱼要二足龄,体重300克左右,体高背厚,腹部膨大柔软,卵巢轮廓明显;雄鱼要三足龄,体重1000克左右,体色鲜红,腹部较大,轻压腹部有稠状精液流出。为此尽量要选同一养殖场、同一鱼种规格、同样饲养管理的亲鱼,以求个体规
The crux of the breeding and breeding of broodstock carp crucian carp, the biggest problem is how to control abortion. In order to explore this seed production technology, after nearly a decade of exploration and conclusion, we have taken comprehensive technical measures and achieved remarkable results. The main technical measures are as follows: I. Strict selection of broodstock broodstock requires strong physique, disease-free, Flake intact, individual uniform. Female to two-legged age, body weight of about 300 grams, thick back, thick and soft abdomen, ovary clear outline; male three-year-old, weighing about 1000 grams, body color red, abdominal larger, light pressure abdominal thick Semen flows out. To this end try to choose the same farm, the same species specifications, the same breeding parent fish management, in order to individual regulation