Developing new methodology for extracting precision phenotypes from on-farm technology: A systemic modelling approach using accelerometers to derive behavioural indicators for dairy cow health and feeding status Vivi M. Thorup Incoming to: INRA (Jouy-en-Josas), MoSAR, Paris, France Annual Meeting of AgreenSkills, Toulouse, 28 October, 2014
MoSAR – Modélisation Systémique Appliquée aux Ruminants Head of unit & scientific mentor: Dr. Nicolas Friggens MoSAR: an INRA-AgroParisTech mixed research unit, which brings together researchers and lecturers with animal nutrition, behaviour, rumen physiology, lipid metabolism, and modelling backgrounds. Common research theme: Quantitative description of the processes by which ruminants acquire, ingest, digest, metabolise, and partition resources (feed and body reserves) to production and other life functions.
Background • MSc Biology (ethology) • PhD ‘Biomechanical Gait Analysis in Pigs’ • Researcher, Aarhus University, Denmark, 2007-2013 (minus 2 years of maternity leave): A) Modelling dairy cow energy balance from live weights and body condition B) Developing automatic detection of dairy cow lameness using force plates P recision L ivestock F arming
AgreenSkills post doc project Why : Diseases like mastitis and lameness are frequent & affect the cow’s welfare & milk production What : Using accelerometers to derive behavioural indicators for individual dairy cow health to be used on-farm How : Derive time-budget from accelerometer -> validate using other technologies -> characterise individual cow phenotype -> detect changes early -> alert farmer This behavioural phenotyping will also be useful for genetic selection
Publications 2014 PAPERS 1. Thorup , V M, L Munksgaard, P-E Robert, H W Erhard, P T Thomsen and N Friggens. The effect of locomotion score on the accelerometer activities of cows on four commercial dairy farms (submitted to Animal ). 2. Thorup , V M, O F Nascimento, F Skjøth, M Voigt, M D Rasmussen, T W Bennedsgaard and K L Ingvartsen. 2014. Short communication: Gait symmetry changes in healthy and lame dairy cows based on 3-dimensional ground reaction force curves following claw trimming. Journal of Dairy Science 97 (in press). ABSTRACTS 1. Thorup , V M, H W Erhard, P-E Robert, L Munksgaard and N Friggens. 2014. Les relations entre les variables accélérométriques mesurées sur des vaches dans quatre exploitations laitières. 21 e journées 3R (Rencontres, Recherches, Ruminants), Paris, France, Dec. 3-4 (accepted). 2. Thorup , V M, P-E Robert, L Munksgaard, H W Erhard and N Friggens. 2014. How are dairy cow accelerometer activity changes related to visual gait score changes? Proceedings of WAFL , Clermont-Ferrand, France, Sept. 3-5, p. 149. 3. Thorup , V M, L Munksgaard, P-E Robert, H W Erhard and N Friggens. 2014. Accelerometer based activity parameters in relation to dairy cow lameness on four commercial farms. Proceedings of First DairyCare Conference , Copenhagen, Denmark, Aug. 22-23, p. 62. COST Action FA1308, ISBN 978-0-9930176-0-5. 4. Friggens, N and V M Thorup . 2014. Towards a systemic use of precision livestock measures and precision phenotyping in dairy herds. Proceedings of First DairyCare Conference , Copenhagen, Denmark, Aug. 22-23, p. 32. COST Action FA1308, ISBN 978-0-9930176-0-5.
Other activities 2014 • Management committee member & chairman for working group ‘Activity based welfare monitoring’ in DairyCare COST Action (FA1308), March 2014 – ongoing • Course participation: An Introduction to Modelling for Biologists, MoSAR • Course participation: From Data to Predictive Modelling, AgreenSkills • Guest lecture on ‘Lameness Detection’ in: Precision Livestock Farming course for 3 rd year students at AgroParisTech • Co-supervisor on master project ‘Lameness in Dairy Cows’ for veterinary student at École Nationale Vétérinaire de Toulouse
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