Compound feed for improving thickness of head, neck, back and tail meat of Lepomis gulosus and preparation process thereof

Abstract

The invention relates to a compound feed for improving thickness of head, neck, back and tail meat of Lepomis gulosus and a preparation process thereof. The compound feed comprises the following components by mass ratio: 12-15% of fish meal, 12-18% of chicken powder, 20-25% of soybean meal, 7-10% of soy protein concentrate, 4-9% of rapeseed meal, 20-23% of flour, 2-5% of squid visceral ointment, 1-3% of fish oil, 3-5% of soybean oil, 0.8-1.2% of dihydrogen phosphate, 0.1-0.2% of multivitamin, 0.1-0.2% of composite minerals, 0.03-0.05% of bile acid and 0.5-1% of taurine. According to the growthand nutrient requirement of the Lepomis gulosus, the process ensures the feed protein addition amount through the reasonable combination of the animal and vegetable protein raw materials, and uses the oil source and the sugar source to reasonably improve the feed protein and energy ratio, and more protein is saved for fish growth, which effectively improves feed protein utilization efficiency anddeposition rate; the growth performance of the Lepomis gulosus and the body shape are improved, so that the head and neck meat of the Lepomis gulosus is convex, the back meat and the tail meat are thick.

Description

technical field [0001] The invention relates to a sunfish feed, in particular to a compound feed for increasing the thickness of the head, neck, back and tail of sunfish and its preparation process. Background technique [0002] Bluegill sunfish, native to the freshwater waters of the southern United States and northern Mexico, was introduced into the Pearl River Delta in the late 1990s to start artificial breeding. Bluegill sunfish has the characteristics of wide temperature, wide feeding habits, and strong adaptability. Its fish body has high meat content, tender meat, rich nutrition, rich in protein, fat, and amino acids, and has broad consumption and breeding prospects. At present, more and more farmers use artificial compound feed to raise sunfish. However, there are few domestic studies on the nutritional requirements of sunfish. The quality of feed on the market is uneven. Unbalanced feed often leads to slow growth of sunfish. The frequent occurrence of diseases and ...

AI Technical Summary

Problems solved by technology

This plan also increases the growth rate of sunfish by increasing the proportion of fish meal, which is costly and has a high fat content in fish meal. If the fatty acid is decomposed and oxidized during production and storage, the nutritional value of fish meal will be reduced, affecting the digestion and processing of animal body. Immune function, causing hepatic and intestinal hypertrophy

In this component, the source of animal protein and vegetable protein is single, which is likely to cause amino acid imbalance; this solution also lacks the addition of mineral elements, which will affect the growth and shape of fish bones, and will also inhibit the oxidation and decomposition of fat, and inhibit the growth of fish body. The growth rate leads to excessive fat accumulation in the viscera and mesentery of the fish, metabolic syndrome, low protein synthesis efficiency, and thin and pointed back of the fish