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Master Thesis

Évaluation de l'intérêt des nouvelles technologies pour améliorer la gestion du pâturage avec un robot de traite

Abstract : The increasing number of automatic milking systems in France and Europe has resulted in a reduction of grazed grass in the diet of dairy cows. To improve the competitiveness of the European dairy farming by combining grazing and automatic milking, the European project Autograssmilk aim to enhance the use of new technologies to succeed in this association. The new technology used is an accelerometer, the Lifecorder®, which register cows’ grazing time. After a validation of the tool, an experiment was conducted using 25 cows of the Derval experimental farm. An identification system at the entrance end the exit of the barn was used to calculate the time spent outside. The results show a great individual and temporal variability among the data. The first few days in a paddock, characterized by a height sward height and a small amount of maize silage, cows have a longer grazing time and spend more time in the paddocks compare to the last days. However, non-constant amount of maize silage does not allow to conclude an effect of the sward height because this amount increase in the end of the paddock. A relationship between grazing time and grass supply could possibly be established in experimental conditions with the same amount of supplementary forage. It would help the farmer in grazing management.
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Master Thesis
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https://dumas.ccsd.cnrs.fr/dumas-01092069
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Submitted on : Monday, December 8, 2014 - 11:49:14 AM
Last modification on : Monday, July 6, 2020 - 3:38:21 PM
Long-term archiving on: : Monday, March 9, 2015 - 11:00:44 AM

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  • HAL Id : dumas-01092069, version 1

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Jean Raynal. Évaluation de l'intérêt des nouvelles technologies pour améliorer la gestion du pâturage avec un robot de traite. Sciences agricoles. 2014. ⟨dumas-01092069⟩

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