Portunus trituberculatus larva cultivation forage

Abstract

The invention discloses a Portunus trituberculatus larva cultivation forage. The forage is prepared by using the following raw materials, by weight, 15-25 parts of spirulina powder, 5-15 parts of shrimp powder, 1-5 parts of yeast powder, 1-5 parts of Bacillus subtilis powder, 1-5 parts of oyster shell powder, 0.1-0.5 parts of trace elements, 0.1-0.5 parts of mineral matters, 1-5 parts of a feeding promoting agent and 17-25 parts of soybean milk. Spirulina in the forage is a Portunus trituberculatus larva's favorite planktonic alga, so the forage accords with the feeding characteristic of Portunus trituberculatus; the yeast powder and the Bacillus subtilis powder can adjust probiotic florae in the intestine of the Portunus trituberculatus and enhance the irritability and the self immunity of the Portunus trituberculatus; and the feeding promoting agent is a purely natural plant pulvis, contains no additives, is in favor of improving the appetite of the Portunus trituberculatus, and has a substantial increase effect on the growth rate of the Portunus trituberculatus. After the forage is eaten by the Portunus trituberculatus, the survival rate and the body weight of the Portunus trituberculatus are substantially improved.

Description

technical field [0001] The invention relates to a feed for Portunus trituberculatus, in particular to a feed for cultivating Portunus trituberculatus larvae, belonging to the field of feed processing. Background technique [0002] Portunus trituberculatus ( portunus trituberculatus ) belongs to Crustacea, Decapod order, Portunidae, is the largest and most famous marine crab in my country. Portunus trituberculatus has delicious meat and rich nutrition. Since the 1980s, its value has doubled. Most of the Portunus trituberculatus caught in my country every year is used for export to earn foreign exchange, and only a small part is provided to the domestic market. Due to overfishing, the natural resources of Portunus trituberculatus are increasingly scarce, and the annual catch is even more difficult to meet the needs of the domestic market. . In order to make up for the shortage of natural resources and meet the needs of the domestic market, artificial breeding of Portunus tri...

AI Technical Summary

Problems solved by technology

[0003] Portunus trituberculatus has a ferocious personality and is very aggressive. It inhabits the bottom of the sea area and comes out at night. It has obvious phototaxis. It has eaten each other since the megalopa stage, especially when it moults and there is a serious lack of bait; the traditional Breeding and feeding frozen miscellaneous fish, shrimp, nutrient composition and food-attracting effect of the compound feed that is inconsistent with Portunus trituberculatus as bait, the survival rate of Portunus trituberculatus is low, and the weight gain is not obvious

With the large-scale artificial breeding, more and more attention has been paid to the compound feed of swimming crabs this year. However, the current compound feed is mainly fish meal and soybean meal, with some plant or animal protein added, and the protein raw material is single.

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