Litopenaeus vannamei parent prawn feed capable of replacing fresh and living bait

Abstract

The invention relates to a litopenaeus vannamei parent prawn feed capable of replacing a fresh and living bait, and belongs to the field of nutrients and feeds of aquatic animals. The feed comprises the following ingredients in percentage by weight: 40% of fish meal, 6% of casein, 10% of krill meal, 15% of mussel meal, 14.75% of high-gluten flour, 0.5% of cholesterol, 2% of phospholipid, 7% of fish oil, 1% of choline, 0.5% of astaxanthin, 0.75% of vitamin C, 1.5% of calcium hydrogen phosphate, 0.5% of complex vitamins, and 0.5% of composite mineral substances. According to the litopenaeus vannamei parent prawn feed disclosed by the invention, through a compounding ratio of various nutrient components and through selection of raw materials, a prepared compound feed can meet nutritional requirements of parent prawns for reproduction, and feeding effects in respects of an egg laying rate, a continuous egg laying rate, a hatching rate, a distortion rate, egg diameters and the like of the parent prawns fed with the litopenaeus vannamei parent prawn feed are not significantly different from those fed with fresh and living clamworms, so that the feed disclosed by the invention can replace the fresh and living bait for strengthening the nutrients of the parent prawns, and the problem that the parent prawns are infected with external disease sources when being fed with the fresh and living bait is solved.

Description

technical field [0001] The invention belongs to the field of aquatic animal nutrition and feed, and in particular relates to a compound feed for Litopenaeus vannamei broodstock which can replace fresh and live bait. Background technique [0002] Litopenaeus vannamei, which belongs to the tropical open seminal vesicle species, is one of the few excellent cultured shrimp species recognized in the world. During production, in order to ensure the smooth maturation and spawning of the broodstock shrimp, nutrition-intensive cultivation of the broodstock shrimp will be carried out for more than two months before the eye stalks of the broodstock shrimp are removed. The gonad development process of broodstock is a process in which nutrients are abundant and rapidly accumulated. When the energy intake exceeds the maintenance energy consumption, it can be used for growth, molting and reproduction. During this process, broodstock need to continuously ingest a large amount of nutrients ...

AI Technical Summary

Problems solved by technology

In addition, the growth and reproduction of these biological baits are affected by many environmental factors, and the quality and yield are unstable, which easily affects the ripening cultivation and seed production of large quantities of broodstock shrimp.

Moreover, these biological baits have a large amount of feeding (generally, the daily feeding amount is 20-30% of the body weight of broodstock shrimp), and the price is expensive, which restricts the improvement of the seed production enterprise's benefit

Images