Marcos Tavárez

IntroductionImprovest® (Zoetis, Kalamazoo, MI) is immunological product for intact male pigs that stimulates the production of antibodies against gonadotropin-releasing factor (GnRF), blocking its activity and causing temporary castration. It was approved for use in the United States in 2011 (FDA 2011). Improvest management delays castration, taking advantage of increased feed efficiency and l ...

IntroductionThe poultry industry, more specifically, the broiler industry, plays a key role in the delivery of high quality protein and lipids to the world population. Per capita consumption of chicken meat of both developed and underdeveloped nations increased greatly from 1995 through 2005 (Scanes, 2007). This was, in part, because unlike red meats, there are no religious or cultural constraints ...