Comparison of efficiency of effect of saline and chelated forms of Mn and Zn in feeding pigs

Abstract

The purpose. To compare efficiency of effect of saline, chelated and combi-humate forms of feed additives Mn and Zn upon indexes of body height and reproduction of repair sows. Methods. Decrease of levels of compensation of deficiency of Mn and Zn in basic ration (BR) in the chelated form for 50 or 25%, in combi-humate — up to 25% of the level for saline form. Results. According to effect on indexes of body height it is possible to decrease levels of compensation for chelates in 4 times for Mn and in 2 times for Zn, to effect on indexes of reproduction — in 2 times for Mn, while for Zn decrease does not justify itself; for combi-humates of Mn and Zn decrease of levels of compensation to 25% justifies itself. Conclusions. Combi-humates of Mn and Zn exceed by efficiency effect of saline and chelated forms at more low levels of compensation of their deficiency in BR.