The impact of the duration of retained placenta on postpartum diseases and culling rates in dairy cows.
- Author:
Tai Young HUR
1
;
Young Hun JUNG
;
Seog Jin KANG
;
Chang Yong CHOE
;
Ui Hyung KIM
;
Il Sun RYU
;
Dong Soo SON
;
Sung Jai PARK
;
Ill Hwa KIM
Author Information
1. National Institute of Animal Science, RDA, Cheonan 330-801, Korea. tyohur@korea.kr
- Publication Type:Original Article
- Keywords:
culling rates;
dairy cows;
postpartum diseases;
retained placenta
- MeSH:
Endometritis;
Female;
Humans;
Incidence;
Mastitis;
Milk;
Parity;
Placenta, Retained;
Postpartum Period;
Pyometra;
Veterinarians
- From:Korean Journal of Veterinary Research
2011;51(3):233-237
- CountryRepublic of Korea
- Language:English
-
Abstract:
The objective of this study was to evaluate the duration of retained placenta (RP) on postpartum diseases and culling in dairy cows. Data were collected from 456 Holstein cows between 2008 and 2010. RP (> or = 24 h after parturition) and postpartum diseases were diagnosed by farm managers and a veterinarian according to standardized definitions. The overall incidence rate of RP was 14.0%, and the incidence rate of RP with fourth and higher parity was two times that of cows having offspring for the first time. The duration of RP was 2 to 15 days with a mean of 6.8 days, except for cases of fourth and higher parity which had a mean of 10.5 days. A total of 63% of cows with RP had postpartum diseases. Among the cows diagnosed with RP, 23.4% developed metritis, and of those, 35.3% developed endometritis or pyometra. A total of 25% (n = 16) cows with RP were culled within 60 days in milk (DIM) and of those culled, 75% (n = 12) had postpartum diseases. These results suggest that RP increases the risk of postpartum diseases such as metritis and mastitis and is a culling hazard up to 60 DIM.
