Special feed for juvenile fish of plagiognathops microlepis and preparation method thereof

Abstract

The invention discloses a special feed for a juvenile fish of plagiognathops microlepis. The special feed comprises the following components in parts by weight: 30-40 parts of hornwort, 30-40 parts of najas marina, 20-30 parts of soybean meal, 1-5 parts of camphorwood leaf, 4-6 parts of poplar leaf, 1-5 parts of chinaberry seed, 2-6 parts of masson pine needle, 1-3 parts of duckweed, 1-3 parts of salvinia natans, 15-20 parts of silkworm chrysalis meal, and 15-20 parts of pig blood power. The aquatic plants are used as main feed materials, the resources are rich, the secondary fermentation improves the contents of crude vegetable protein and crude fat to meet the nutrition demands; the soybean meal improves the tastiness while improving the nutritive components; camphorwood leaves, poplar leaves and the chinaberry seed can prevent and cure trichodiniasis; the masson pine needle can prevent and cure argulus; the duckweed and the salvinia natans can prevent and cure lernaea. The feed is high in stability in water, the survival rate is up to more than 95% and the growth rate of body mass are also up to more than 165.7 when the feed provided by the invention is used for feeding the fish, the feed coefficient is reduced, and the feed conversion rate is improved.

Description

technical field [0001] The invention belongs to the technical field of feed, and in particular relates to a special feed for juvenile pomfret fish and a preparation method thereof. Background technique [0002] The small-scaled pomfret belongs to the order Cyprinidae, Cyprinidae, subfamily Pomfret, and the genus Pomfret. Distributed in Heilongjiang, Yangtze River, Pearl River and other water systems and streams along the southeast coast. The side of the body is flat, the starting point of the dorsal fin is higher, the body is slightly thicker, and there is a ventral rib on the abdomen from the base of the pelvic fin to the anus. The head is small, the snout is blunt, the mouth is inferior, and the horny edge of the lower jaw is well developed. The dorsal fin has a smooth hard spine, the scales are small, and the lateral line scales are 74-84. The back of the body is taupe, the abdomen is silvery white, the anal fin is light yellow, the caudal fin is orange, and the rear ...

AI Technical Summary

Problems solved by technology

With the increasing level of breeding and living standards, the production of conventional fish in China has grown by leaps and bounds and can no longer meet the needs of the improvement of living standards. Various famous and high-quality aquatic products have been cultivated in large quantities and gradually replaced conventional species. High-efficiency, green and ecological aquatic products have become The mainstream of breeding and consumption, because the slender squid is obviously superior to other famous and high-quality species in terms of ecological environmental protection benefits and breeding economic benefits, the slender squid is gradually favored by various farmers, and more and more artificial breeding, but in the slender scale In the breeding process of pomfret, at present, more studies have been done on the polyculture of pomfret and other fish species and the artificial reproduction technology of pomfret. In the process of polyculture, there is no special feed for pomfret, and the feed is mixed fish Feed residues or branches and leaves of aquatic higher plants, diatoms and filamentous algae are the main food, followed by aquatic insects, zooplankton and other saprophytic substances in water, but there is no report on the feed for juvenile pomfret