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Management factors affecting udder health and effects of a one year extension program in organic dairy herds

Published online by Cambridge University Press:  14 July 2009

S. Ivemeyer ,
M. Walkenhorst ,
F. Heil ,
C. Notz ,
A. Maeschli ,
G. Butler  and
P. Klocke
S. Ivemeyer*
Affiliation:
Animal Health Division, Research Institute of Organic Agriculture, Ackerstrasse, CH-5070 Frick, Switzerland
M. Walkenhorst
Affiliation:
Animal Health Division, Research Institute of Organic Agriculture, Ackerstrasse, CH-5070 Frick, Switzerland
F. Heil
Affiliation:
Animal Health Division, Research Institute of Organic Agriculture, Ackerstrasse, CH-5070 Frick, Switzerland
C. Notz
Affiliation:
Animal Health Division, Research Institute of Organic Agriculture, Ackerstrasse, CH-5070 Frick, Switzerland
A. Maeschli
Affiliation:
Animal Health Division, Research Institute of Organic Agriculture, Ackerstrasse, CH-5070 Frick, Switzerland
G. Butler
Affiliation:
Nafferton Ecological Farming Group, Newcastle University, Stocksfield, NE43 7XD, UK
P. Klocke
Affiliation:
Animal Health Division, Research Institute of Organic Agriculture, Ackerstrasse, CH-5070 Frick, Switzerland
*
†E-mail: [email protected]
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Abstract

The first part of this study was a cross-sectional analysis of the impact of 29 management factors on udder health in organic dairy farms in Switzerland. All 77 farms joined the extension program ‘pro-Q’. As a measure of udder health the theoretical bulk milk somatic cell count (TBMSCC) calculated by the monthly cow composite somatic cell count over a time period of 1 year was chosen. The basic udder health of the farms was determined by TBMSCC during the year prior to the start of the project (mean for all farms = 176 460 cells/ml). In the multivariable analysis, the five factors ‘swiss brown breed’, ‘alpine summer pasturing’, ‘calf feeding with milk from mastitis diseased cows’, ‘hard bedding’ and ‘no post-milking’ remained as significant risk factors on udder health. In the second part of the study, the development of management factors and the udder health situation affected by an extension program after 1 year was investigated. A partial improvement of the management factors on the farms but no overall improvement on udder health and no association between management changes and udder health changes were found. Improvement of udder health was more likely in farms with higher basic TBMSCC than in those farms with less udder health problems at the beginning of the project.

Keywords

managementudder healthextension effect
Type
Full Paper
Information
animal , Volume 3 , Issue 11 , November 2009 , pp. 1596 - 1604
Copyright
Copyright © The Animal Consortium 2009

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