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Economic potential of individual variation in milk yield response to concentrate intake of dairy cows

Published online by Cambridge University Press:  04 March 2010

G. ANDRÉ ,
P. B. M. BERENTSEN ,
G. VAN DUINKERKEN ,
B. ENGEL  and
A. G. J. M. OUDE LANSINK
G. ANDRÉ*
Affiliation:
Livestock Research, Wageningen University and Research Centre, P. O. Box 65, 8200 ABLelystad, The Netherlands
P. B. M. BERENTSEN
Affiliation:
Business Economics Group, Wageningen University and Research Centre, P. O. Box 8130, 6700 EWWageningen, The Netherlands
G. VAN DUINKERKEN
Affiliation:
Livestock Research, Wageningen University and Research Centre, P. O. Box 65, 8200 ABLelystad, The Netherlands
B. ENGEL
Affiliation:
Biometris, Wageningen University and Research Centre, P. O. Box 100, 6700 ACWageningen, The Netherlands
A. G. J. M. OUDE LANSINK
Affiliation:
Business Economics Group, Wageningen University and Research Centre, P. O. Box 8130, 6700 EWWageningen, The Netherlands
*
*To whom all correspondence should be addressed. Email: Geert.Andre@wur.nl
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Summary

The objectives of the current study were to quantify the individual variation in daily milk yield response to concentrate intake during early lactation and to assess the economic prospects of exploiting the individual variation in milk yield response to concentrate intake. In an observational study, data from 299 cows on four farms in the first 3 weeks of the lactation were collected. Individual response in daily milk yield to concentrate intake was analysed by a random coefficient model. Marked variation in individual milk yield response to concentrate intake was found on all four farms. An economic simulation was carried out, based on the estimated parameter values in the observational study. Individual optimization of concentrate supply is compared with conventional strategies for concentrate supply based on averaged population response parameters. Applying individual economic optimal settings for concentrate supply during early lactation, potential economic gain ranges from €0·20 to €2·03/cow/day.

Type
Modelling Animal Systems Paper
Information
The Journal of Agricultural Science , Volume 148 , Issue 3 , June 2010 , pp. 263 - 276
Copyright
Copyright © Cambridge University Press 2010

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