Feed additive for improving intestinal functions of piglets and application of feed additive

Abstract

The invention discloses a feed additive for improving intestinal functions of piglets and an application of the feed additive. The feed additive is formed by combining and processing two or more of copper chitosan, zinc chitosan, ferrous chitosan and selenium chitosan according to a certain proportion; two or more inorganic microelements in the four combined substances do not need to be added into feed for the piglets; and 0.05%-2% of the feed additive provided by the invention is added to the piglet feed, so that the diarrhea rate of the piglets is remarkably reduced, the daily gain of the piglets is improved, the feed to gain ratio is reduced, and the disease resistance of the piglets is enhanced. The feed additive provided by the invention can be used for directly replacing common inorganic microelement additives, so that the problem of environment pollution caused by application of high copper and high zinc is avoided. Through a plurality of feeding experiments and laboratory detection, the feed additive has a remarkable effect, and is safe and non-toxic; and moreover, feeding animal products meet the requirements on national food sanitation.

Description

technical field [0001] The invention relates to a feed additive for improving intestinal function of piglets and application thereof. Background technique [0002] The production of weaned piglets is a key link in pig production. Due to the impact of psychological, environmental and nutritional stress during weaning, piglets often show the so-called "piglet weaning syndrome" such as poor appetite, digestive disorders, diarrhea, growth retardation and low feed utilization. Weaning makes the small intestinal villi of piglets easily damaged by bacteria and feed, thereby affecting the ability to digest and absorb nutrients. After weaning, the piglets switch from liquid milk intake to solid feed intake. When the diet contains a large amount of gramineous grains, under the abrasion of plant dry matter, the intestinal villi quickly wear and shorten, the surface of the villi changes from high-density fingers to flat tongues, and the crypts deepen. This change will last for 7-14 d...

AI Technical Summary

Problems solved by technology

However, the use of high doses of copper and zinc has brought about many problems, such as waste of resources, environmental pollution, copper poisoning, interference with the absorption of other mineral elements, dark pigs' long hair, etc.