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 language | English (US) |
|---|---|
| Pages (from-to) | 83-100 |
| Number of pages | 18 |
| Journal | Preventive Veterinary Medicine |
| Volume | 7 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jan 1 1989 |
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ASJC Scopus subject areas
- Food Animals
- Animal Science and Zoology
Cite this
Reproductive management practices among Tulare, California, dairy herds. I. Census and descriptive aspects. / Cowen, P.; Schwabe, C. W.; Rosenberg, H. R.; Bondurant, Robert; Franti, C. E.; Goodger, W. J.
In: Preventive Veterinary Medicine, Vol. 7, No. 2, 01.01.1989, p. 83-100.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Reproductive management practices among Tulare, California, dairy herds. I. Census and descriptive aspects
AU - Cowen, P.
AU - Schwabe, C. W.
AU - Rosenberg, H. R.
AU - Bondurant, Robert
AU - Franti, C. E.
AU - Goodger, W. J.
PY - 1989/1/1
Y1 - 1989/1/1
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=38249022747&partnerID=8YFLogxK
U2 - 10.1016/0167-5877(89)90001-9
DO - 10.1016/0167-5877(89)90001-9
M3 - Article
AN - SCOPUS:38249022747
VL - 7
SP - 83
EP - 100
JO - Preventive Veterinary Medicine
JF - Preventive Veterinary Medicine
SN - 0167-5877
IS - 2
ER -