Abstracts from the 63rd Reciprocal Meat Conference of the American Meat Science Association, 20-23 June 2010, Texas Tech University, Lubbock, Texas

摘要

The objective of this study was to determine if increasing lysine levels in the diets of immunologically castrated male pigs will increase percent fat free lean and carcass cutting yields as well as to determine if the further processed products made from these raw materials are different from those made from physical castrates or entire males. The anti-gonadotropin releasing factor (GnRF) immunological (Improvac, Pfizer Animal Health) is used worldwide to immunologically castrate entire male pigs to control boar taint and take advantage of their inherent ability to grow leaner and more efficiently than physically castrated males. The immunization process controls boar odor problems and makes the likelihood for adoption into U.S. swine production systems far more likely. Reported lean meat advantages will also provide potential economic benefits to the domestic meat industry.