Composite premix for cows

Abstract

The invention relates to a composite premix, in particular to a composite premix for cows. The invention provides the composite premix for the cows for improving the nutrition balance of crow feed and improving the health level of the cows. The composite premix consists of the following components in percentage by mass: 20 to 30 percent of mountain flour, 0.12 to 0.16 percent of copper sulfate, 0.20 to 0.40 percent of manganese sulfate, 0.12 to 0.16 percent of sodium selenite at the concentration of 1 percent, 0.40 to 0.46 percent of zinc sulfate, 0.3 to 0.5 percent of calcium iodate at the concentration of 1 percent, 0.1 to 0.12 percent of cobalt chloride at the concentration of 5 percent, 6.0 to 8.0 percent of magnesium oxide, 0.036 to 0.04 percent of vitamin A, 0.012 to 0.016 percent of vitamin D3, 0.1 to 0.12 percent of vitamin E, 20 to 30 percent of zeolite powder, 20 to 30 percent of thin bran, 10 to 12 percent of yeast culture and 1 to 2 percent of special composite enzyme for cows.

Description

Technical field: [0001] The invention relates to a compound premix, more specifically, relates to a compound premix for dairy cows. Background technique: [0002] Dairy cows are ruminants and their diets contain high-quality roughage and concentrate supplements. my country lacks high-quality forage grass. With the development of dairy farming, the demand for roughage is increasing, and the contradiction between supply and demand is becoming increasingly prominent. However, my country is rich in straw resources, with an annual output of about 600 million tons, 1.2 times that of grain output, accounting for 20%-30% of the world's total straw output, which provides a large amount of roughage resources for the development of herbivores. At present, the utilization rate of this huge unconventional feed resource is only about 25%. Unbalanced nutrition, poor palatability, and low rumen degradation rate are the main factors that limit the utilization of straw, resulting in low mil...

AI Technical Summary

Problems solved by technology

The main disadvantages of the current common dairy cow premix products are: 1. In the basic ration based on straw, the content of iron and phosphorus is sufficient to meet the needs of dairy cows, and a large amount of iron and phosphorus are added to the common premix 2. Due to the serious loss of vitamins in straw, it needs to be supplemented by premix, but the content of vitamin A, D, and E in ordinary premix cannot meet the needs of dairy cows , resulting in low immune function and high incidence of disease; 3. The high degree of lignification of straw leads to low degradation rate of straw and insufficient dry matter intake of dairy cows. Ordinary premixes lack corresponding technical measures to improve cows’ tolerance to straw. degradation rate and feed intake

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