Relationships of Efficiency to Reproductive Disorders in Danish Milk Production: A Stochastic Frontier Analysis

Lawson, L. G., Bruun, J., Coelli, T., Agger, J. F. and Lund, M. (2004) Relationships of Efficiency to Reproductive Disorders in Danish Milk Production: A Stochastic Frontier Analysis. Journal of Dairy Science, 87 1: 212-224. doi:10.3168/jds.S0022-0302(04)73160-4


Author Lawson, L. G.
Bruun, J.
Coelli, T.
Agger, J. F.
Lund, M.
Title Relationships of Efficiency to Reproductive Disorders in Danish Milk Production: A Stochastic Frontier Analysis
Journal name Journal of Dairy Science   Check publisher's open access policy
ISSN 0022-0302
1525-3198
Publication date 2004-01-01
Sub-type Article (original research)
DOI 10.3168/jds.S0022-0302(04)73160-4
Open Access Status Not yet assessed
Volume 87
Issue 1
Start page 212
End page 224
Total pages 13
Editor J. Rice
S. C. Nickerson
Place of publication Champaign, Ill.
Publisher American Dairy Science Association
Language eng
Subject C1
340201 Agricultural Economics
340404 Cross-Sectional Analysis
720205 Industry costs and structure
720404 Productivity
Abstract Relationships of various reproductive disorders and milk production performance of Danish dairy farms were investigated. A stochastic frontier production function was estimated using data collected in 1998 from 514 Danish dairy farms. Measures of farm-level milk production efficiency relative to this production frontier were obtained, and relationships between milk production efficiency and the incidence risk of reproductive disorders were examined. There were moderate positive relationships between milk production efficiency and retained placenta, induction of estrus, uterine infections, ovarian cysts, and induction of birth. Inclusion of reproductive management variables showed that these moderate relationships disappeared, but directions of coefficients for almost all those variables remained the same. Dystocia showed a weak negative correlation with milk production efficiency. Farms that were mainly managed by young farmers had the highest average efficiency scores. The estimated milk losses due to inefficiency averaged 1142, 488, and 256 kg of energy-corrected milk per cow, respectively, for low-, medium-, and high-efficiency herds. It is concluded that the availability of younger cows, which enabled farmers to replace cows with reproductive disorders, contributed to high cow productivity in efficient farms. Thus, a high replacement rate more than compensates for the possible negative effect of reproductive disorders. The use of frontier production and efficiency/ inefficiency functions to analyze herd data may enable dairy advisors to identify inefficient herds and to simulate the effect of alternative management procedures on the individual herd's efficiency.
Keyword Agriculture, Dairy & Animal Science
Food Science & Technology
Animal Health Economics
Dairy Efficiency
Reproductive Disorders
Epidemiology
Dairy Farm Efficiency
Technical Inefficiency
Panel-data
Cows
Diseases
Performance
Metritis
Cattle
Model
Q-Index Code C1
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
2005 Higher Education Research Data Collection
School of Economics Publications
 
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Created: Wed, 15 Aug 2007, 14:56:44 EST