A feed for growing-up grass carp that makes the meat fresh and tender and its preparation method

Abstract

The invention discloses a feed for growing grass carp and a preparation method thereof, which comprises a certain proportion of fish meal, soybean meal, cotton meal, rapeseed meal, corn, wheat, rice bran, fine bran, distiller's grains, soybean oil and dihydrogen phosphate Calcium and grass carp premix, steps: A, mix fish meal, soybean meal, cotton meal, rapeseed meal, corn, rice bran, wheat, fine bran; B, finely pulverize the raw materials after batching; C, pulverize Put the raw material into the mixer, put the soybean oil, distiller's grains, calcium dihydrogen phosphate, and grass carp premix into the mixer and mix; D, prepare the mixed materials, the modulation process uses a double-layer or three-layer modulator, and the steam It should be saturated dry steam; E. The aspect ratio of the ring die for granulation is greater than 11, and the aperture of the ring die is determined according to the specifications of grass carp; F. Cooling; G. Measuring packaging. The method is easy and simple to operate, the digestibility of the grass carp feed is improved, the feed cost is reduced, and the breeding benefit is improved.

Description

technical field [0001] The present invention relates to the technical field of feed for freshwater fish breeding, more specifically to a high-efficiency and environment-friendly grass carp feed for making the meat fresh and tender, and also relates to a preparation method for the high-efficiency and environment-friendly grass carp feed for making the meat fresh and tender. The compound feed is suitable for Formulated feed for the pond culture model of grass carp in the grow-out period as the main species and mixed with crucian carp, bream, silver carp and bighead carp. Background technique [0002] Grass carp belongs to the genus Grass carp of Cyprinidae Cyprinidae, commonly known as grass carp, oil carp, grass carp, white carp, grass root (northeast), mixed seed, black herring, etc. It is an important aquatic product and delicacies on the tables of the common people in mainland China. Grass carp generally likes to live in the middle and lower layers of aquaculture water bo...

AI Technical Summary

Problems solved by technology

Some anti-nutritional factors (trypsin inhibitors, gossypol, glucosinolates, tannins, phytic acid, histamine, etc.) and harmful substances (such as excessive aflatoxin, arsenic, lead, etc.) in the feed may cause fish body Metabolism changes and feed utilization rate reduction may also deteriorate the aquaculture water environment, thereby inhibiting the health of fish, increasing the occurrence of fish diseases, and increasing the use of aquaculture drugs

This series of changes will affect the taste and flavor of farmed grass carp. For example, the backfat of farmed grass carp is thin, the abdomen is soft and swollen, the fish meat is soft and greasy, the taste of the fish meat is poor, and there may even be peculiar smell, which may also affect the food. Safety

At the same time, the use of low-quality whole plant protein may also damage the intestinal health of farmed fish, affecting animal feeding and nutrient absorption and utilization

Images