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The relation between input-output transformation and gastrointestinal nematode infections on dairy farms

Mariska van der Voort, Jef Van Meensel, Ludwig Lauwers UGent, Guido Van Huylenbroeck UGent and J Charlier (2016) ANIMAL. 10(2). p.274-282
abstract
Efficiency analysis is used for assessing links between technical efficiency (TE) of livestock farms and animal diseases. However, previous studies often do not make the link with the allocation of inputs and mainly present average effects that ignore the often huge differences among farms. In this paper, we studied the relationship between exposure to gastrointestinal (GI) nematode infections, the TE and the input allocation on dairy farms. Although the traditional cost allocative efficiency (CAE) indicator adequately measures how a given input allocation differs from the cost-minimising input allocation, they do not represent the unique input allocation of farms. Similar CAE scores may be obtained for farms with different input allocations. Therefore, we propose an adjusted allocative efficiency index (AAEI) to measure the unique input allocation of farms. Combining this AAEI with the TE score allows determining the unique input-output position of each farm. The method is illustrated by estimating efficiency scores using data envelopment analysis (DEA) on a sample of 152 dairy farms in Flanders for which both accountancy and parasitic monitoring data were available. Three groups of farms with a different input-output position can be distinguished based on cluster analysis: (1) technically inefficient farms, with a relatively low use of concentrates per 1001 milk and a high exposure to infection, (2) farms with an intermediate TE, relatively high use of concentrates per 1001 milk and a low exposure to infection, (3) farms with the highest TE, relatively low roughage use per 1001 milk and a relatively high exposure to infection. Correlation analysis indicates for each group how the level of exposure to GI nematodes is associated or not with improved economic performance. The results suggest that improving both the economic performance and exposure to infection seems only of interest for highly TE farms. The findings indicate that current farm recommendations regarding GI nematode infections could be improved by also accounting for the allocation of inputs on the farm.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
cluster analysis, Ostertagia ostertagi, data envelopment analysis, TECHNICAL EFFICIENCY, input allocation, technical efficiency, LAMENESS, SYSTEMS, PARAMETERS, DIAGNOSIS, HERDS, EXPOSURE, ANTIBODIES, CONTROL STRATEGIES, MILK-YIELD
journal title
ANIMAL
Animal
volume
10
issue
2
pages
274 - 282
Web of Science type
Article
Web of Science id
000377121500010
JCR category
AGRICULTURE, DAIRY & ANIMAL SCIENCE
JCR impact factor
1.921 (2016)
JCR rank
5/58 (2016)
JCR quartile
1 (2016)
ISSN
1751-7311
DOI
10.1017/S1751731115002074
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
7279273
handle
http://hdl.handle.net/1854/LU-7279273
date created
2016-06-23 11:15:03
date last changed
2016-12-19 15:42:32
@article{7279273,
  abstract     = {Efficiency analysis is used for assessing links between technical efficiency (TE) of livestock farms and animal diseases. However, previous studies often do not make the link with the allocation of inputs and mainly present average effects that ignore the often huge differences among farms. In this paper, we studied the relationship between exposure to gastrointestinal (GI) nematode infections, the TE and the input allocation on dairy farms. Although the traditional cost allocative efficiency (CAE) indicator adequately measures how a given input allocation differs from the cost-minimising input allocation, they do not represent the unique input allocation of farms. Similar CAE scores may be obtained for farms with different input allocations. Therefore, we propose an adjusted allocative efficiency index (AAEI) to measure the unique input allocation of farms. Combining this AAEI with the TE score allows determining the unique input-output position of each farm. The method is illustrated by estimating efficiency scores using data envelopment analysis (DEA) on a sample of 152 dairy farms in Flanders for which both accountancy and parasitic monitoring data were available. Three groups of farms with a different input-output position can be distinguished based on cluster analysis: (1) technically inefficient farms, with a relatively low use of concentrates per 1001 milk and a high exposure to infection, (2) farms with an intermediate TE, relatively high use of concentrates per 1001 milk and a low exposure to infection, (3) farms with the highest TE, relatively low roughage use per 1001 milk and a relatively high exposure to infection. Correlation analysis indicates for each group how the level of exposure to GI nematodes is associated or not with improved economic performance. The results suggest that improving both the economic performance and exposure to infection seems only of interest for highly TE farms. The findings indicate that current farm recommendations regarding GI nematode infections could be improved by also accounting for the allocation of inputs on the farm.},
  author       = {van der Voort, Mariska and Van Meensel, Jef and Lauwers, Ludwig and Van Huylenbroeck, Guido and Charlier, J},
  issn         = {1751-7311},
  journal      = {ANIMAL},
  keyword      = {cluster analysis,Ostertagia ostertagi,data envelopment analysis,TECHNICAL EFFICIENCY,input allocation,technical efficiency,LAMENESS,SYSTEMS,PARAMETERS,DIAGNOSIS,HERDS,EXPOSURE,ANTIBODIES,CONTROL STRATEGIES,MILK-YIELD},
  language     = {eng},
  number       = {2},
  pages        = {274--282},
  title        = {The relation between input-output transformation and gastrointestinal nematode infections on dairy farms},
  url          = {http://dx.doi.org/10.1017/S1751731115002074},
  volume       = {10},
  year         = {2016},
}

Chicago
van der Voort, Mariska, Jef Van Meensel, Ludwig Lauwers, Guido Van Huylenbroeck, and J Charlier. 2016. “The Relation Between Input-output Transformation and Gastrointestinal Nematode Infections on Dairy Farms.” Animal 10 (2): 274–282.
APA
van der Voort, M., Van Meensel, J., Lauwers, L., Van Huylenbroeck, G., & Charlier, J. (2016). The relation between input-output transformation and gastrointestinal nematode infections on dairy farms. ANIMAL, 10(2), 274–282.
Vancouver
1.
van der Voort M, Van Meensel J, Lauwers L, Van Huylenbroeck G, Charlier J. The relation between input-output transformation and gastrointestinal nematode infections on dairy farms. ANIMAL. 2016;10(2):274–82.
MLA
van der Voort, Mariska, Jef Van Meensel, Ludwig Lauwers, et al. “The Relation Between Input-output Transformation and Gastrointestinal Nematode Infections on Dairy Farms.” ANIMAL 10.2 (2016): 274–282. Print.