Micropterus salmoides juvenile puffed feed capable of increasing standard fry survival rate and preparation method thereof

Abstract

The invention relates to micropterus salmoides juvenile puffed feed capable of increasing standard fry survival rate and a preparation method thereof. The feed comprises, by weight, 35-45 parts of Japanese-grade fish meal, 3-12 parts of fermented bean meal, 20-25 parts of high-gluten flour, 2-5 parts of fish oil, 2-7 parts of algin, 1-3 parts of fish dissolved pulp, 5-15 parts of krill powder, 2 parts of micropterus salmoides vitamin premix, 3 parts of micropterus salmoides mineral and other premix, 1-2 parts of Chinese herbal medicine immune preparation mixture and 1 part of live maggot antibacterial peptide magma preparation. The Chinese herbal medicine immune preparation mixture is added into the feed, and flavone and glycoside thereof, organic acid, flavane and polymer thereof contained in hawthorn in the Chinese herbal medicine immune preparation mixture can play an important role in improving food intake of fishes and promoting appetite; herba andrographitis, radix isatidis, cortex eucommiae and herba lysimachiae have antivirus effect, so that the feed has better effect.

Description

technical field [0001] The invention relates to a California perch feed, in particular to a California perch juvenile puffed feed which improves the survival rate of standard seedlings and a preparation method thereof. Background technique [0002] The scientific name of the California perch is largemouth bass, which belongs to the order Perciformes, the family Sunfish, and the genus Black Perch. Largemouth bass are divided into two subspecies based on geographic distribution and morphological aspects of their native range: one is the northern subspecies and the other is the Florida subspecies. The California perch cultivated in my country is mainly the northern subspecies of largemouth bass. It is welcomed by the market because of its delicious meat, strong disease resistance, rapid growth and easy catch. From 2016 to 2018, due to the breakthrough in whole-process feed breeding, the breeding area of ​​California sea bass increased nationwide, and the level of breeding tec...

AI Technical Summary

Problems solved by technology

The conventional feed that the market is used for California perch seedlings mainly contains the following problems: the first, the food-attractive problem of feed, after the California water flower utilizes the yolk sac, the rotifers and water spiders (cladocera and copepods in the water body) that begin to feed on the water body After 4 days (body length ≥ 1cm specification), domestication begins. If the feed attractant at this stage is not good, California will stop eating and cause death by closing the mouth; second, the viscosity of the feed particles in the domestication stage The requirements are relatively high. If the feed viscosity is poor and it is easy to scatter when exposed to water, it will cause the loss of nutrients; third, the California perch seedling stage is prone to various diseases, such as "familiar disease" caused by Flavobacterium columnar, elastic growth The "transfer disease" caused by the virus is an important reason for the reduced survival rate of the California perch seedlings. The existing feed is not capable of resisting the invasion of viruses and bacteria in California.

Images