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Feed zinc oxide (ZnO), an oxide of zinc. Hard to dissolve in water, soluble in acids and alkalis. It is a commonly used chemical additive. Compared to other varieties of zinc oxide, it has special requirements on the index: the zinc oxide content can not be lower than
95, the zinc content must not be lower than 76.3, the heavy metal content lead, arsenic, cadmium cannot exceed 10 ppm. The production process has relatively high requirements. The health indicators of the direct method and the indirect method are not reachable. We can only use the wet method and replace and restore it several times.
Strict process control, in order to achieve the corresponding indicators.
Produce pre-mixed feeds and add common ingredients directly to finished feeds.
1. Compared with other zinc sources, the cost of zinc per unit of zinc oxide is significantly lower, which is beneficial to the cost of lower feed additives. The amount of zinc oxide is equivalent to 44% of zinc sulfate monohydrate and 28% of zinc sulfate heptahydrate.
2. Zinc oxide is a dry, powdery zinc source. It has good stability in feed, no water, no agglomeration and invariability. It is convenient for feed processing and long-term storage. Little effect on vitamins in feed.
3, zinc oxide as a zinc source, is more easily absorbed by animals than other zinc sources, zinc supplementation effect is good.
Excessive addition of high zinc does not promote the growth of the pig. Excess zinc-added feed is consumed by animals, absorbed through the digestive tract, and distributed through the blood throughout the tissues and organs of the body. Since these metals cannot be decomposed or rarely absorbed, they are rarely reduced by animal biotransformation. Due to its toxicity, it gradually accumulates in the body, exerts its toxic effect through the combination with the organic components of the organism, and causes environmental pollution.