Indispensable trace elements for animal breeding

The physiological characteristics and functions of copper and zinc are well known. They are considered as essential trace elements for animal nutrition. The supply of these elements is insufficient, which can have a negative impact on animal physiological processes and thus affect animal health.

Zinc (zinc oxide), copper (copper sulphate), and salts at high concentrations (ie, exceeding normal health and production requirements) have a positive effect on further improving animal health and improving production performance. The traditional zinc and copper tradition for treating diarrhea The form needs to be replaced because these minerals are not digestible and will accumulate.

For example, providing zinc (zinc oxide) in an amount of 2000-3000 ppm can effectively reduce diarrhea in weaned piglets, increase their immunity, and increase piglet weight. However, it should be noted that the above effects will not occur until 2 weeks after weaning, and the effect is not obvious if it exceeds 2 weeks. At the same time, the copper (copper sulfate) content of 250 ppm (still in the allowable range) can also achieve the same effect.

One of the most important issues with the use of these high concentrations of trace elements in dosing is excretion. As the amount of trace elements used by animals is limited, a greater part of the minerals that are ingested from food is excreted through the feces, and the level of excretion depends on the source of zinc and copper, dietary ingredients, and nutrients taken by the animals.

It is generally assumed that the ingested zinc and copper excretion is about 80%-90%, but these excreta may cause excessive accumulation of trace elements in the environment, soil and water (drinking water) and pollute the environment. So how to solve the problem of excretion of trace elements, farmers can try the following methods to solve the problem of excretion: mineral organic sources. Organically derived zinc and copper are generally more stable and have higher efficiency to reach the organ. It has been found that the bioavailability of zinc and copper from organic sources is much higher than inorganic forms of zinc and copper.

Increase the effective surface area. Minerals can be contacted with microorganisms to exert their bacteriostatic and bactericidal effects. Many ways can be used to increase the effective area of ​​minerals, one of which is absorbed by clay minerals. Another method is conventional zinc oxide micronization, which has a very good effect in increasing the effective surface area.

Package. Minerals can be covered by certain types of lipids, reducing their decomposition in the stomach, allowing them to be released into the guts to function. At present, low-dose packaging products can provide good results.

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