| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
1 College of Veterinary Medicine, Hanover, Germany
2 II. Medical Animal Clinic, University of Munich, Germany
Logistic regression models were used to examine the relationship between milk yield and incidence of certain disorders. Lactations (n = 2197) of 1074 Holstein-Friesian cows from 10 dairies (25 to 146 cows per dairy) in Lower Saxony were studied. The 305-d yield from the previous and current lactations served as the standards for milk yield. Eight disorder complexes were considered: retained placenta, metritis, ovarian cysts, mastitis, claw diseases, milk fever, ketosis, and displaced abomasum. Each disorder complex was modeled separately. In addition to milk yield, the influences of the lactation number, the calving season and the other disorder complexes were examined with the "herd" factor taken into account. A correlation between retained placenta, mastitis, and milk fever to milk yield during the previous lactation was found to be probable and for ketosis and displaced abomasum such a correlation was found to be possible. A connection to the yield in the current lactation was shown for ovarian cysts, claw diseases, and milk fever. No relationship to milk yield existed for metritis. An influence of the lactation number was also demonstrated in various models. Single models allowed a demonstration of the influences of both milk yield and lactation number. Limitations of the model types are discussed.
Key Words: disease • milk yield • dairy cows • logistic regression
Submitted on July 10, 2000
Accepted on April 11, 2001
This article has been cited by other articles:
|
|
 |
|
  M. A. G. von Keyserlingk, J. Rushen, A. M. de Passille, and D. M. Weary Invited review: The welfare of dairy cattle--Key concepts and the role of science J Dairy Sci, September 1, 2009; 92(9): 4101 - 4111. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. F. Duffield, K. D. Lissemore, B. W. McBride, and K. E. Leslie Impact of hyperketonemia in early lactation dairy cows on health and production J Dairy Sci, February 1, 2009; 92(2): 571 - 580. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G. Freyer, S. Konig, B. Fischer, U. Bergfeld, and B. G. Cassell Invited Review: Crossbreeding in Dairy Cattle From a German Perspective of the Past and Today J Dairy Sci, October 1, 2008; 91(10): 3725 - 3743. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. D. Bannerman, A. C. W. Kauf, M. J. Paape, H. R. Springer, and J. P. Goff Comparison of Holstein and Jersey Innate Immune Responses to Escherichia coli Intramammary Infection J Dairy Sci, June 1, 2008; 91(6): 2225 - 2235. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. A. Gonzalez, B. J. Tolkamp, M. P. Coffey, A. Ferret, and I. Kyriazakis Changes in Feeding Behavior as Possible Indicators for the Automatic Monitoring of Health Disorders in Dairy Cows J Dairy Sci, March 1, 2008; 91(3): 1017 - 1028. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 T. Wittek, I. Sen, and P. D. Constable Changes in abdominal dimensions during late gestation and early lactation in Holstein-Friesian heifers and cows and their relationship to left displaced abomasum Vet Rec., August 4, 2007; 161(5): 155 - 160. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. M. Sogstad, O. Osteras, T. Fjeldaas, and A. O. Refsdal Bovine Claw and Limb Disorders at Claw Trimming Related to Milk Yield J Dairy Sci, February 1, 2007; 90(2): 749 - 759. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Koenig, A. R. Sharifi, H. Wentrot, D. Landmann, M. Eise, and H. Simianer Genetic Parameters of Claw and Foot Disorders Estimated with Logistic Models J Dairy Sci, September 1, 2005; 88(9): 3316 - 3325. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. Gumen, J. N. Guenther, and M. C. Wiltbank Follicular Size and Response to Ovsynch Versus Detection of Estrus in Anovular and Ovular Lactating Dairy Cows J Dairy Sci, October 1, 2003; 86(10): 3184 - 3194. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
