Risk factors for abomasal displacement in dairy cows.
OBJECTIVE
To determine whether various periparturient events or 305-day milk production during the previous lactation period were associated with abomasal displacement in dairy cows.


METHODS
Retrospective, case-control study.


METHODS
75 pairs of case and control cows from 3 university-owned and 3 commercial dairy herds.


METHODS
Cows with abomasal displacement were matched with control cows on the basis of herd of origin, breed, age, and calving date. Frequency of specific periparturient events during the period from 2 weeks prior to parturition to diagnosis of abomasal displacement, as well as milk production during the preceding lactation period, were compared between case and control cows.


RESULTS
Multivariate analyses indicated that case cows were significantly more likely to have had retained placenta, ketosis, a stillborn calf, metritis, twins, or parturient paresis than were control cows. Dystocia, mastitis, and milk production during the previous lactation period were not associated with abomasal displacement.


CONCLUSIONS
Results indicated that a variety of periparturient events were associated with development of abomasal displacement among dairy cows.
Rohrbach
B W
BW
Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville 37901, USA.
Cannedy
A L
AL
Freeman
K
K
Slenning
B D
BD
D000018:Abomasum; D000818:Animals; D016022:Case-Control Studies; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology / Q000209:etiology*; D005260:Female; D015994:Incidence; D009657:North Carolina; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology / Q000662:veterinary*; D012307:Risk Factors; D013272:Stomach Diseases / Q000453:epidemiology / Q000209:etiology / Q000662:veterinary*; D013714:Tennessee