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随着牛蛙养殖业的发展,饵料的研制就提到了议事日程。由于天然活饵的不足,使蝌蝌生长变慢,变态推迟,进而影响到成蛙的生长发育,延长了养殖周期。我们经过精心试验,探讨了人工饵料的营养水平对牛蛙蝌蚪生长速度,变态时间等情况的影响,初步得到了用人工饵料代替天然活饵的可行住。 一、试验方法 1.试验时间 5月10日——9月10日 2.材料 取露天池中15日龄的小蝌蚪(约 0.8克,30尾),采用塑料盆室内放养,自然光照。
With the development of the bullfrog aquaculture industry, the development of bait referred to the agenda. Due to the lack of natural live bait, the growth of the tadpole is slowed and the metamorphosis is postponed, thereby affecting the growth and development of the frog and prolonging the breeding cycle. After careful testing, we discussed the effects of artificial dietary nutrient levels on the growth rate, metamorphosis time and other conditions of tadpoles of bullfrog, and initially obtained the viable alternative to natural live bait with artificial bait. First, the test method 1. Test time May 10 - September 10 2. Material Take Tianchi 15 days old small tadpole (about 0.8 g, 30), the plastic basin indoor stocking, natural light.