Preparation and application methods of fermented materials of bait biological bed for cultivating procambarus clarkii

Abstract

The invention provides preparation and application methods of fermented materials for a bait biological bed for cultivating procambarus clarkii. The method comprises the following steps: adding materials fermented by probiotics; and carrying out rotary cultivation to construct the bait biological bed which takes the fermented materials as main components at the bottom of a pond. The fermented materials not only can be directly supplied to the procambarus clarkii to eat; cultured animals and plants including tubificidae, chironomidae larvae, snails, aquatic plants and the like can be used as natural baits for the procambarus clarkii, so as to be good for reducing the food competition intensity and improving the cultivation survival rate. The bait biological bed can dually supply oxygen in summer by an oxygen bottle and a micro-pore aerator and is good for improving the cultivation efficiency of food organisms; the cultivated natural baits can be used for providing an extra nutrition source to the growth of the procambarus clarkii, and are good for improving the cultivation yield and benefits of the procambarus clarkii.

Description

technical field [0001] The present invention relates to a method for feeding Procambarus clarkii with fermented materials processed by probiotics in a pond, making the fermented materials used by Procambarus clarkii and benthic organisms, and at the same time promoting the proliferation of aquatic plants. In particular, the invention relates to a method for cultivating Procambarus clarkii by converting cheap raw materials and wastes into high-quality natural bait, which belongs to the field of breeding technology. Background technique [0002] Improving the production of Procambarus clarkii aquaculture is of great significance to increasing the income of shrimp farmers, and common measures to increase production are: [0003] 1. Increase the stocking density of Procambarus clarkii so that the stocking density per unit area increases from 6,000 tails / mu to more than 12,000 tails / mu. This method can significantly increase the aquaculture output, but the cost of shrimp fry is ...

AI Technical Summary

Problems solved by technology

Although increasing the protein content can speed up the growth rate of Procambarus clarkii, the price of high-protein feed is relatively high, and the cost of breeding will increase significantly

[0005]3. Increase the feeding amount of artificial feed or small miscellaneous fish to increase the nutrient intake of Procambarus clarkii, but excessive feeding will definitely cause feed waste , increased feeding costs and water pollution, and are prone to disease

[0006]4. The farming method of catching commercial shrimp reaching the market size and continuously supplementing stocking shrimp seedlings can increase the aquaculture output of Procambarus clarkii, but this method is not suitable for seedlings. For Procambarus clarkii with limited species sources and very scarce resources, it is more difficult to promote and apply in a large area

[0007]5. Planting a large number of aquatic plants can improve the breeding ecology and provide plant-based bait, but aquatic plants are one of the main foods for Procambarus clarkii. In the case of a large amount, the aquatic plants in the pond will gradually decrease, and the stability of the breeding ecology and the survival rate of the breeding will decrease accordingly.

[0008]6. Cultivate natural bait by fertilization or feed low-value waste as part of the bait source for Procambarus clarkii. pollute

At the same time, because the foraging ability of Procambarus clarkii is much lower than that of other shrimps, the utilization rate of artificial pellet feed is obviously low, and the effect of relying on artificial feed for Procambarus clarkii breeding is not very satisfactory. The stability of breeding output and breeding benefits is poor, and the cost of breeding remains high, so it is necessary to improve the above-mentioned breeding methods