Vitamin premix for tilapia mossambica in medium-term growth and preparation method thereof

Abstract

The invention discloses a vitamin premix for tilapia mossambica in medium-term growth and a preparation method thereof. The vitamin premix is prepared through vitamin A, vitamin D, E, K3, B1, B2, niacin, B3, B6, folic acid, biotin, inositol, vitamin C, choline chloride, an antioxidant and defatted rice bran. The preparation method comprises the following steps: (1) weighing defatted rice bran, crushing and drying; (2) weighing rice bran and transferring into a stainless steel barrel, and agitating under conditions that the environmental temperature is lower than 30 DEG C, and the relative humidity is not greater than 65%; (3) adding vitamins A, D, K3, B1, folic acid and B6 to the barrel, and uniformly mixing; (4) adding the rest vitamin and defatted rice bran to the stainless steel agitating barrel, and uniformly mixing; (5) packing the obtained product, and storing in a dry, dark, low-temperature and ventilated environment. The vitamin premix for tilapia mossambica in medium-term growth is reasonable in formula and high in efficiency, realizes the obvious increase of weight gain rate and protein efficiency ratio of the tilapia mossambica in medium-term growth, and also increases the number of red blood cells, the content of hemoglobin, and packed cell volume; in addition, the vitamin premix also reduces the environmental pollution and improves the meat quality and taste.

Description

technical field [0001] The present invention relates to the technical field of aquafeed additives, more specifically to a tilapia mid-growing premix, and also to a method for preparing a tilapia vitamin premix, which is mainly suitable for Medium grow-out tilapia weighing 50-200 g. Background technique [0002] Tilapia has the characteristics of fast growth, strong fecundity, miscellaneous food habits, and strong disease resistance. It is the fifth largest aquaculture species in China, and China is also the largest tilapia farming and exporting country in the world. Since the National Bureau of Statistics has statistics from 1997 to 2012, my country's tilapia production has increased at an average annual rate of 8.08%, ranking first in the world. In 2012, my country's tilapia production reached 1.45 million tons. At present, the total output of tilapia feed in my country has reached 1.5 million tons, and the utilization rate of compound feed in tilapia farming has reached ...

AI Technical Summary

Problems solved by technology

[0005] The present invention overcomes the deficiencies of the prior art, and solves the problem that the contents and proportions of various vitamins in the currently commercially available vitamin premix are not targeted to the mid-stage of tilapia growth, resulting in the blind and random use of various vitamins in the mid-stage of tilapia growth. Slow growth, high feed factor and serious environmental pollution caused by vitamins

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