Feed for Carassius auratus fries and preparation method of feed

Abstract

The invention provides feed for Carassius auratus fries and a preparation method of the feed. The feed comprises raw materials in parts by weight as follows: 20-30 parts of rapeseed oil residues, 20-30 parts of soybean meal, 10-14 parts of sweet potato starch, 15-20 parts of cottonseed meal, 10-16 parts of buckwheat flour, 2-6 parts of pachymaran, 2-6 parts of a nano-carrier, 0.5-1.5 parts of a compound premix, 0.5-1.5 parts of a phagostimulant and 1-2 parts of calcium hydrophosphate, wherein the nano-carrier is mainly prepared from nano-zinc oxide, nano-titanium dioxide, hydrotalcite and slag. According to the preparation method, the rapeseed oil residues, the soybean meal, the cottonseed meal, the buckwheat flour and the pachymaran are subjected to fermentation treatment, and then a product is mixed with the remaining raw materials for granulation. The feed can enhance constitution and increase survival rate of Carassius auratus, and palatability of the feed is improved.

Description

technical field [0001] The invention belongs to the technical field of aquaculture feed, in particular to crucian carp fry feed and a preparation method thereof. Background technique [0002] Carp, also known as carp kidnapper and carp, belongs to the Cyprinidae family of Cyprinidae. It is a temperate freshwater fish native to Asia. It likes to live in warm lakes or slow-flowing rivers on the plains. Carp, like most freshwater fish, is a stomachless fish species with a thin and short intestine and a fast metabolism, so the eating habit is to eat less and frequently. Carp is an omnivorous bottom fish with strong stress resistance. It is one of the traditional freshwater aquaculture species in my country and one of the most widely aquaculture fishes in the world. Because of its delicious and tender meat, few thorns, moderate price and rich nutrition, it is deeply loved by people and is known as "the head of domestic fish". [0003] The digestive tract of crucian carp is shor...

AI Technical Summary

Problems solved by technology

[0003] The digestive tract of crucian carp is short, and the emptying speed is fast, and the fat is excreted before it can be fully digested and absorbed; the protein and fat content in the feed is high, which can easily induce liver fat accumulation, damage liver function, interfere with physiological and biochemical metabolism, and cause fatty liver In order to promote the rapid growth of crucian carp, various antibiotics and hormones are artificially applied indiscriminately, which increases the burden on the digestive function of crucian carp, and the incidence of intestinal and liver diseases rises sharply, causing frequent occurrence of crucian carp diseases, especially serious liver lesions; excessive breeding density large, the water environment is harsh, when the concentration of ammonia nitrogen in the water is too high, the metabolites of ammonia in the crucian carp are difficult to discharge normally and accumulate in the blood, causing metabolic imbalance and liver and gallbladder diseases; crucian carp feed often adds more miscellaneous meal, etc. Raw materials, toxic and harmful substances such as free gossypol in cottonseed meal, glucosinolate in rapeseed meal, and nitrite in inferior fish meal can cause liver and gallbladder diseases

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