Dairy Heifer Morbidity, Mortality, and Health Management Focusing on PreweanedHeifers April 1991-July 1992. National Dairy Heifer Evaluation Project

摘要

This report is the second of a two-part series of statistical descriptive tablesproviding information on preweaning dairy heifer health and productivity. Part I, Dairy Herd Management Practices Focusing on Preweaned Heifers (released in July 1993), was based primarily on retrospective data collected via a questionnaire. Part II, Dairy Heifer Morbidity, Mortality, and Health Management Focusing on Preweaned Heifers, is primarily based on prospective data recorded by producers on calving logs and diaries maintained on heifer calves born during a 3-month monitoring period.