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早春青饲料如供给充足,可使草食性鱼类早开食,养殖产量提高显著,还可以促进亲鱼性腺发育,提高产卵率。但春季青饲料不足现象较为突出。下面介绍几种解决方法:1 速生谷芽。有稻谷、大麦、燕麦作原料,筛选后,洗净晒干,放入25—30℃的温水中浸1昼夜。待籽粒膨胀后,平摊在浅水盘中,以3—4厘米厚为宜。盖上纱布或麻袋片,放入光线充足的暖室内让其发芽,室温20—25℃,每昼夜喷洒30℃左右的温水3—4次,同时略加翻动,2—3天后,即可长出毛根和胚芽。揭去纱布或麻袋片,每天早晚淋温水2—3次,约5—7天,嫩芽长出,即可按投喂需要,控制谷、麦芽长短。
Early spring green feed, such as adequate supply of grassy fish can make the early opening of food, breeding yield increased significantly, but also can promote broodstock gonadal development and improve oviposition rate. But the lack of green feed in spring is more prominent. Here are some solutions: 1 fast-growing Guya. With rice, barley, oats for raw materials, after screening, washed and dried, immersed in warm water 25-30 ℃ for 1 day and night. After the grain is swollen, spread it evenly in shallow water to 3-4 cm thick. Cover with gauze or sacks film, put it into a well-lit room to let it germinate, room temperature 20-25 ℃, every day and night spray warm water about 30 ℃ 3-4 times, while slightly flip, 2-3 days, you can grow Hair root and germ. Remove the gauze or sacks film, morning and evening shower warm water sooner or later 2-3 times, about 5-7 days, buds grow, you can feed the need to control the valley, malt length.