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Add basic zinc chloride advantage in feed
The most used Zinc Oxide additive feed enterprises provide zinc as zinc source to supplement animal needs and dilute effect of tensile, after it has limitations that the long-term production practice, so the animal nutrition scholars and enterprises have been trying to find a good alternative, now to study a variety of alternatives. But there are some limitations, basic zinc chloride as a new alternative to a Zinc Oxide has shown many advantages. In the present case is a good substitute for Zinc Oxide.
Keywords zinc chloride Zinc Oxide
Zinc is an essential element of the animal, it exists in all body tissues and organs, which mainly exists in bone, muscle, liver, kidney and skin. In food and feed is most zinc bound. There are mainly related proteins or amino acids, nucleic acid or combination of phytic acid. Zinc must be released from these compounds can be tissue absorption. Because of its extensive physiological functions in the body, known as the "life element", zinc is a component in the 40 kinds of metal enzyme activator, 200 enzymes, involved in nucleic acid and protein synthesis, energy metabolism, redox, cellular immunity and humoral immunity. In addition, there are reports that: zinc can promote the rapid regeneration of tongue mucosa of taste bud cells, enhance the role of appetite. When zinc deficiency can lead to metabolism disorder, affect animal growth and immunity. High zinc is mainly used in young livestock diets, according to reports, early weaned piglets diets supplemented with high zinc can reduce piglet diarrhea, improve the daily gain, improved feed conversion.
1 Zinc Oxide
Due to the use of antibiotics is increasingly restricted. Although the zinc salt absorption and utilization rate is low, but it has very good antibacterial effect, so in production caused by abuse of high zinc, the young livestock and poultry especially piglets, high zinc to prevent diarrhea of weaned piglets plays a big role, it is understood. The current feed manufacturers in weaned piglets are mostly used in high zinc to prevent piglet diarrhea diarrhea, the amount has exceeded the normal animal requirement of 20 ~ 30 times, reached the high level of 3000mg pharmacological measurement of zinc / kg Zinc Oxide is even higher. This will break the original balance of various elements, increase the amount of other trace elements is inevitable, so manufacturers generally add quantity of copper and iron were increased to 160 ~ 250mg / kg. Too much mineral feed, will lead to reduce the stability of vitamin and other nutrients was reduced to a series of problems, which not only increases the difficulty in the design of feed formula, the effect of feed quality and increase the cost of feed.
Holm (1988), Poulsen (1989) proposed that the drug level of zinc source Zinc Oxide (Gao Xin) can be used for effective control of Escherichia coli. Most studies reported that high zinc sources only Zinc Oxide has anti diarrhea and growth promoting effect, but at the same time, Zinc Oxide reported various zinc sources in biological utilization rate is the lowest. Weaning is about 5% ~ 10%, most of them from the feces discharged, not being used (Hoover, 1997), causing serious pollution to the environment. According to Japanese experts speculated that if the zinc in the soil manure. All the zinc content will exceed the standard in 17 years (120mg / kg), contaminated land will no longer have arability (Yu Yanhu, 2002).
In addition, the dust is very large, there is great harm to feed producers, mineral feed production personnel long-term exposure to high doses. Can cause skin damage, and induce skin cancer, even into secondary lung cancer; large dust suction Zinc Oxide, can cause zinc toxicity, a zinc can be inhaled 40mg attack after inhalation 80mg attack.
Especially in the later stage of fattening livestock, most scholars believe that the increase in feed mineral, animal susceptible to Fenton reaction in the slaughter, thus speeding up the meat and meat products rancidity speed (Wen Jie, 2002). Especially in weaned piglets, Zinc Oxide is appropriate to add period in two weeks after weaning, but due to the actual situation of refueling trouble, often with high Zinc Oxide will feed more than two weeks, the resulting piglets lose luster, dry fur. In the growth promoting effect on the body, is also affected by the increase of zinc residue.
2 basic zinc chloride
Basic zinc chloride is a kind of new pharmacological additive, has antibacterial anti diarrhea effect. The molecular formula is Zn5Cl2 (OH) 8. H2O, molecular weight: 551.89, as a feed additive is generally not deliquescence, white powder, soluble in acid, insoluble in water, soluble in ammonia water and alkali, stable properties, and Zinc Oxide, zinc sulfate compared with good palatability, safe and non-toxic, heavy metal content Jiale zinc is low, stable quality control. Good fluidity, no caking, is an ideal additive.
2.1 basic zinc chloride can well prevent piglet diarrhea diarrhea
Basic zinc chloride has a broad-spectrum antibacterial effect and convergence effect, the growth and proliferation of a, can inhibit harmful bacteria, reduce bacteria toxin production; B, the convergence of intestinal epithelial cells, reduce the cell exudation and fluid secretion, and promote the repair of intestinal mucosa; C sphincter and anal intestinal smooth muscle contraction, reduce intestinal peristalsis and faeces. Increase water absorption to control diarrhea effect. Basic zinc chloride not only on the nutrition of diarrhea prevention and treatment effect, and the prevention and treatment of bacterial diarrhea. The molecular state of basic zinc chloride and Zinc Oxide only play a growth promoting, anti diarrhea effect, only a few basic zinc chloride in part of stomach acid dissolve more in molecular state into the small intestine and large intestine without being dissolved, so the anti diarrhea effect is more significant.
2.2 basic zinc chloride can

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