Preparation method and use method of fermentation material of bait biological bed for breeding macrobrachium nipponensis

Abstract

The invention relates to a preparation method and a use method of a fermentation material of a bait biological bed for breeding macrobrachium nipponensis. The method comprises the steps of feeding a probiotics-fermented batch mixture, and carrying out rotary tillage for building the 'bait biological bed' which takes the fermentation material as a main component at the bottom of a pond. The fermentation material not only can be directly fed to the macrobrachium nipponensis, but also can be used for cultivating animals and plants such as tubificidae, chironomidae larvae, spiral shell and aquatic weeds, and the cultivated animals and plants can be taken as the bait of the macrobrachium nipponensis, so that food competition intensity can be reduced, and the survival rate of aquaculture can be improved. The 'bait biological bed' is supplied with oxygen by an oxygen bottle and a microporous aerator in summer, so that the cultivation efficiency of the benthonic food organisms can be improved; the cultured natural bait can be used for providing an extra nutrition source for the growth of the macrobrachium nipponensis, so that the aquaculture yield and the benefit of the macrobrachium nipponensis can be increased.

Description

technical field [0001] The invention relates to a method for cultivating macrobrachium prawns in a pond, which can be used by macrobrachium japonicus and benthic organisms after being fermented by probiotics, and can promote the proliferation of aquatic plants, especially A method for the culture of Macrobrachium japonicus by converting cheap raw materials and waste into high-quality natural bait. Background technique [0002] Improving the production of Macrobrachium japonicus is of great significance to increasing the income of shrimp farmers, and the common measures to increase production are: ① Increase the stocking density of Macrobrachium japonicus, so that the stocking density per unit area increases from 50,000 to 80,000 to 80,000 fish / mu To 100,000-150,000 / mu, this method can increase the breeding output, but the seedling cost of Macrobrachium japonicus more than doubles, and the average size of commercial shrimp grown under high-density farming conditions is relati...

AI Technical Summary

Problems solved by technology

[0002] Improving the production of Macrobrachium japonicus is of great significance to increasing the income of shrimp farmers, and the common measures to increase production are: ① Increase the stocking density of Macrobrachium japonicus, so that the stocking density per unit area increases from 50,000 to 80,000 to 80,000 fish / mu To 100,000-150,000 / mu, this method can increase the breeding output, but the seedling cost of Macrobrachium japonicus more than doubles, and the average size of commercial shrimp grown under high-density farming conditions is relatively small, and the sales price is low. Therefore, the effect of breeding efficiency is not significant; ②Increase the crude protein content in the artificial feed, so that the crude protein in the feed increases from 28%-32% to more than 40%, although increasing the protein content can accelerate the growth rate of Macrobrachium japonicus, However, the price of high-protein feed is high, and the cost of breeding increases significantly; ③ Increase the amount of artificial feed or small miscellaneous fish to increase the nutrient intake of Macrobrachium japonicus, but excessive feeding will inevitably cause waste and increase the cost of feeding increase, and it is easy to cause diseases; ④ Stocking large-scale shrimp seedlings, increasing the stocking size of shrimp seedlings from 3000-5000 tails / kg to 1000 tails / kg, so as to grow commercial shrimps with larger sizes, so that the additional value of shrimp is worthwhile. ⑤ Cultivate natural bait by fertilization or feed low-value waste as part of the bait source for Macrobrachium japonicus. Although the cost of this method is low, it will pollute the water body