Sheep 2001. Part 3: Lambing Practices, Spring 2001.

摘要

As part of the National Animal Health Monitoring System (NAHMS), the USDA:APHIS:Veterinary Services (VS) conducted the first national study of the sheep industry with the 1996 NAHMS National Sheep Survey. This was a voluntary mail-in survey, developed through collaboration with the Research and Education Division of the American Sheep Industry Association (ASI), and focused on identifying health and productivity issues affecting Americas sheep industry. The 1996 NAHMS study results provided an overview of sheep health, productivity, and management on 5,174 U.S. operations. NAHMS second national sheep study, NAHMS Sheep 2001, was designed to provide both participants and the industry with information about the U.S. sheep flock on operations with one or more sheep. Specific objectives of this study are described in Section II: Methodology. The USDAs National Agricultural Statistics Service (NASS) collaborated with VS to select a producer sample statistically designed to provide inferences to the nations sheep population in 22 participating States (see map). These 22 States include the major sheep producing States, accounting for 87.4 percent of the U.S. sheep inventory on January 1, 2001, and 72.3 percent of U.S. sheep producers in 2000. Data for Part I were collected from 3,210 operations in the 22 participating States. NASS interviewers contacted producers and collected data for these reports via a questionnaire administered on-site from December 29, 2000, to January 26, 2001. This report - Part III: Lambing Practices, Spring 2001 - is the third of a series of reports from NAHMS Sheep 2001. Data for this report were collected by State and Federal VMOs and AHTs from 870 participating operations via a telephone survey administered from June 4 to June 29, 2001. To be eligible for the telephone survey, operations had to have 20 or more ewes on-site on January 1, 2001, and must have completed lambing by July 1, 2001.