简介:

Feed additives for swine: Fact sheets – high dietary levels of copper and zinc for young pigs, and phytase This is the fourth in a series of peer-reviewed Practice tip articles, each including two or three fact sheets. Previous practice tips included fact sheets on acidif ers and antibiotics in the September-October issue (J Swine Health Prod. 2009;17:270–275); on carcass modif ers, carbohydrate-degrading enzymes, and proteases, and anthelmintics in the November-December issue (J Swine Health Prod. 2009;17:325–332); and on f avors and mold inhibitors, mycotoxin binders, and antioxidants in the January-February issue (J Swine Health Prod. 2010;18:27–32) Future fact-sheet topics will include probiotics and prebiotics and phytogenic feed additives (phytobiotics or botanicals).