State of the art in artificial insemination of pigs in the United States

Abstract Currently, the United States ranks second in pork production worldwide. In 1999 the breeding herd consisted of approximately 6.2 million breeding females with an annual production of 100 million market animals having an average market live weight of 118.6 kg. The objective of this paper is to briefly describe the current US swine artificial insemination (AI) industry and to profile semen production and insemination practices that are currently in use.