Alimentation à volonté, individuelle et automatisée pour des porcelets en post-sevrage

Yvonnick Rousselière et al., 52e Journées de la Recherche Porcine (FRA), 4 et 5 février 2020, Paris, p. 415-416, poster

Poster.

En post-sevrage, l’étude du comportement et des performances individuels des porcelets passe, notamment, par la collecte non intrusive de données sur la façon dont ils s’alimentent et s’abreuvent ou encore par le suivi de leur prise de poids. Pour ce faire, des automates ont été développés dans le cadre de précédentes études : abreuvoir connecté (Rousselière et al., 2016), système de pesée automatisée (Marcon et al., 2018). L’objectif est de compléter ce dispositif expérimental avec un automate capable de distribuer de l’aliment à volonté tout en récupérant des informations sur le comportement alimentaire individuel de chaque porcelet. Ce nourrisseur connecté a été développé conjointement avec la société ASSERVA. Cette étude propose des premiers éléments de description du comportement alimentaire des porcelets.

ENG

Ad-libitum, individual and automated feeding for post-weaning piglets

Poster.

A connected feeder, jointly developed by IFIP and a manufacturer, have been installed at IFIP’s experimental facility in Romillé. It records data on weaned piglets’ individual feeding behaviour: feed consumption, frequency, duration and exact time of each visit. This study focused only on healthy piglets. The connected feeder has a trough equipped with a feed-detection sensor and an endless microscrew motor to drop the feed into it. Radio frequency identification (RFID) technology is used to recognize individual piglets. When a piglet’s RFID ear tag is detected in front of the trough and the sensor does not detect any feed in the trough, 10 g of feed is dropped into it. When the piglet has eaten enough feed to uncover the sensor, which means the trough is empty, another dose is dropped. The device was tested with 102 weaned piglets for 40 days. On a daily basis, piglets consume a mean of 3.8% of body weight and visit the feeder 24 times during the first 14 days after weaning (1st age). During the 2nd age phase, mean daily consumption is 5.1% of body weight, and the number of visits per day increases to 48. Behind these results, piglet behaviour varies among animals but also, for a given animal, from one day to another. Indeed, inter- and intra-individual variability in daily feed consumption are high: both nearly 40% during the 1st age and 18% during the 2nd age. This connected feeder may become an interesting tool in the future for studying individual piglet behaviour in the post-weaning period.