Feed capable of improving propagation capacity of parent daces and production method of feed

Abstract

The invention provides a feed capable of improving the propagation capacity of parent daces and a production method of the feed. The feed consists of 8%-12% of second-class flour, 15%-25% of rice branmeal, 20%-30% of 200 type rapeseed meal, 20%-28% of 46 soybean meal, 3%-5% of imported DDGS, 1%-3% of first-class soybean oil, 0.5%-2% of palm oil, 4%-10% of a mixture of rice chaff and husk, 1-2% ofcalcium dihydrogen phosphate, 0.8%-1.5% of bran, 0.3% of composite vitamins, 1.5% of composite minerals, 0.04%-0.08% of vitamin A acetate, 0.1%-0.2% of vitamin C phosphate ester, 0.07%-0.12% of vitamin E and 0.1%-0.3% of selenium yeast, and a traditional Chinese medicine component of 3-5% of 46 soybean meal is also added. The nutritional requirements of the parent daces during a breeding period are met, the stress of artificial delivery expediting on the parent daces is reduced to the largest extent, the sexual gland index, the egg diameter and the egg laying quantity of the daces are effectively increased, and the fertilization rate and the emergence rate of the parent daces are increased.

Description

technical field [0001] The invention relates to a compound feed for dace broodstock, in particular to a feed for improving the reproductive ability of dace broodstock and a production method thereof, belonging to the technical field of aquatic feed. Background technique [0002] Dace are distributed in the Pearl River Basin and Hainan Island. The general body length is 15-25 cm. Dace body is long, both sides are flattened, the back is slightly raised in front of the dorsal fin, the abdomen is round and slightly straight, the head is short, and the snout is round and blunt. Mouth small, inferior, arc-shaped, upper and lower jaws with horny sharp edges, two pairs of barbels, and snout barbels thicker. Dace is an important freshwater aquaculture object in South China. There are soil carp, wheat carp, Thai carp and other varieties, which are grown into canned dace or larvae. Among them, the cultivation of canned dace is mainly based on the cultivation of four major fish sets, ...

AI Technical Summary

Problems solved by technology

[0003] At present, the reproductive technology of dace in my country is relatively mature, but it mainly relies on the use of hormones or hormone analogs to achieve the purpose of inducing labor. It will cause residue and enrichment at the seedling stage, which may affect human health

When the broodstock is induced to give birth, the dosage is too large or insufficient, and the use time is too early or too late, which will easily lead to increased mortality of broodfish, lower fertilization rate and induced labor rate, and even lead to induced labor failure.

In addition, inadvertent operation during the induction process will cause damage to the broodfish and shock and stress of the broodfish, which may cause non-birth or dystocia of the broodfish, and even cause the death of the broodfish

[0004] In order to overcome many problems such as operational risk in the process of artificially induced spawning of dace broodstock breeding, high broodstock stress, and low reproductive ability of dace broodstock under natural conditions, a nutrient-rich, green and environmentally friendly feed that improves the reproductive ability of dace broodstock is developed. It is particularly important for the sustainable development of dace aquaculture industry

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