As part of the National Animal Health Monitoring System (NAHMS), the USDA:APHIS:Veterinary Services (VS) conducted its first national study of the swine industry with the 1990 National Swine Survey. Study results provided an overview of swine health, productivity, and management for 95% of the US swine herd, the population represented by the 1,661 participating producers. The National Swine Survey focused on farrowing sows and preweaning piglets.
NAHMS’ second national swine study, Swine ’95, was designed to provide both participants and the industry with information on over 90% of the US swine herd.
PartII: Reference of Swine Health and Health Management in the US, 2000 is the second of a series of reports from NAHMS’ Swine 2000 study. Data were collected from 895 swine production sites by Federal and STate Veterinary Medical Officers (VMOs) and Animal Health Technicians (AHTs) from Aug. 21, 2000, through Nov. 2, 2000. (Data for the upcoming Part III were collected from December1, 2000, through February 28, 2001). This second phase of data collection included those sites that responded to NASS enumerators in phase one and agreed to continue participating.