The physiological properties and functions of copper and zinc are well known. They are considered to be essential trace elements for animal nutrition. The lack of supply of these elements can have a negative impact on animal physiological processes and thus affect animal health.
High concentrations (ie, over normal health and production needs) of zinc (zinc oxide), copper (copper sulfate) and salts have a positive impact on further improving animal health and improving performance, and the tradition of zinc and copper for the treatment of diarrhea The form needs to be replaced because these minerals are not easily digested and will accumulate.
For example, providing zinc (zinc oxide) in an amount of 2000 to 3000 ppm can effectively reduce diarrhea in weaned piglets, increase their immunity, and increase the weight of piglets. However, it should be noted that the above effect will only be achieved within 2 weeks after weaning. If it is more than 2 weeks, the effect will not be obvious. At the same time, copper (copper sulfate) having a content of 250 ppm (still in the allowable range) can also achieve the same effect.
One of the most important problems with these high concentrations of trace elements in dosing feeds is excretion. Because animals use a limited amount of trace elements, a larger portion of the minerals that are ingested from food are excreted through the feces, and the level of excretion depends on the source of zinc and copper, the dietary composition, and the nutrients ingested by the animal.
It is generally assumed that the excretion of zinc and copper is about 80% to 90%, but these excretions 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. Zinc and copper derived from organic matter are generally more stable and have higher efficiency in reaching the organ. Zinc and copper bioavailability from organic sources has been found to be much higher than inorganic forms of zinc and copper.
Increase the effective surface area. Minerals can be in contact with microorganisms to exert their antibacterial and bactericidal effects. The effective area of ​​minerals can be increased by a variety of methods, one being 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 breakdown in the stomach and allowing them to be released into the intestinal tract to exert their effects. Currently, low dose packaged products can provide good results.
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