Crucian fry feed

Abstract

The invention discloses crucian fry feed and belongs to the field of aquatic livestock culture feed. The crucian fry feed comprises the following raw materials in parts by weight: 10-20 parts of rapeseed oil residue, 20-30 parts of wheat middlings, 10-20 parts of wheat bran, 5-15 parts of bean meal, 1-5 parts of pumpkin seeds, 10-20 parts of corn protein, 10-15 parts of fishmeal, 0.5-2.5 parts ofcalcium dihydrogen phosphate, 10-20 parts of folium cortex eucommiae, 0.3-0.5 part of bile acid, 1-5 parts of table salt and 0.5-3.5 parts of a feed attractant. The crucian fry feed improves the mouthfeel and palatability of the feed, improves the feed intake amount of crucian fries and increases the growth speed of the crucian fries.

Description

technical field [0001] The invention relates to the field of feed for aquatic animal breeding, in particular to feed for crucian carp fry. Background technique [0002] Crucian carp fry are mainly omnivorous fish that eat plants. They like to travel in groups and live by choosing food. The meat is tender and has high nutritional value. Every 100 grams of meat contains 13 grams of protein, 11 grams of fat, and contains a lot of calcium, phosphorus, iron and other minerals. The medicinal value of crucian carp fry is extremely high. Its nature is flat and sweet, and it enters the stomach and kidney. Crucian carp fry are widely distributed and are produced all year round in waters all over the country. Crucian carp fry from February to April and August to December are the most plump and one of the important edible fish in my country. The maximum body length is about 30 cm, and the inhabiting depth is 0-20 meters. It is non-toxic, economical edible fish, high in quality and low...

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

However, the palatability of many feeds on the market is not good, and the feed intake decreases, which will inevitably affect the total amount of nutrients ingested, and will undoubtedly affect the effect of the feed, especially in the crucian carp fry period, which requires a large amount of nutrition to grow