Reproductive management practices among Tulare, California, dairy herds. I. Census and descriptive aspects

P. Cowen, C. W. Schwabe, H. R. Rosenberg, Robert Bondurant, C. E. Franti, W. J. Goodger

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

A census of reproductive management practices for 218 out of 234 dairies in Tulare County, California, was obtained by cross-sectional survey methods. An among-herd approach to epidemiologic studies was illustrated. Results indicated that the average herd size was 562 cows, 5.9% of the Tulare County dairy herd population was purebred, 54% had "lockup" type stanchions, 40% of dairies were "flat" milking barns and 47% were "herringbone" barns. The reproductive problem most often cited by Tulare County operators was repeat breeders (50% of operators cited this problem) followed by no major problems, abortions, cows not showing estrus, metritis, long calving intervals and cystic ovaries. On 66% of dairies, veterinary pregnancy diagnosis was routinely carried out and 49% of the dairies used a veterinarian to perform post-partum examinations. Approximately 41% of the dairies used tailchalk and a surprising 23% of dairies used prostaglandins for cowsnot showing estrus. The owner-manager was the most frequent category of estrus detector cited, followed by everyone doing estrus detection, the herdsman detecting estrus and only 2% of dairies hired someone specifically for this purpose. An examination of bivariate relationships between dairy management practices and owner-perceived reproductive problems is presented.

Original languageEnglish (US)
Pages (from-to)83-100
Number of pages18
JournalPreventive Veterinary Medicine
Volume7
Issue number2
DOIs
StatePublished - Jan 1 1989

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ASJC Scopus subject areas

  • Food Animals
  • Animal Science and Zoology

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