Nanotechnology in animal nutrition

？Nanometer size feeds have the ability to increase the bioavailability of feeds as they have stronger absorption capability due to the enlarging of the specific surface area. Thus, it is possible to improve the immune performance of the animal, the feed value and the digestibility of the feed it consumes, thus increasing the rate of conversion to feed and efficiency. At the same time, they reduce the amount of fecal matter and contribute to the reduction of environmental pollution. The nano size manipulation of the substance also benefits the functionality of the feed molecules to the product quality by reflecting. In general evaluation of the performed researches it was concluded that the use of nanoparticles as feed additives can be increased significantly of growth performance, feed conversion rate, total protein and albumin and total antioxidant capacity ; It is emphasized that many biological processes can be reduced such as digestion, metabolism and nutrient intake, production process and environmental contamination. However, there is a need for research to determine the suitability, efficacy, toxic properties and boundaries of feed materials in nano structure. In this review have been included the place of nanotechnology in animal production, nanotechnology in animal nutrition and some researches on animals