Effects of Social Facilitation and Introduction Methods for Cattle on Virtual Fence Adaptation
2024
Pernille Arent Simonsen | Niels Søborg Husted | Magnus Clausen | Amalie-Maria Spens | Rasmus Majland Dyrholm | Ida Fabricius Thaysen | Magnus Fjord Aaser | Søren Krabbe Staahltoft | Dan Bruhn | Aage Kristian Olsen Alstrup | Christian Sonne | Cino Pertoldi
Agricultural industries rely on physical fences to manage livestock. However, these present practical, financial, and ecological challenges, which may be solved using virtual fencing. This study aimed to identify how experienced cattle through social facilitation and the introduction method influence inexperienced cattle. Based on three stocks held in Fanø, Denmark, containing 12, 17 and 13 Angus (<i>Bos taurus</i>), we examined the virtual fence learning in three case studies using one gradual introduction with zero experienced cattle (A) and two different instant introductions with one (B) and ten (C) experienced cattle. Gradual introduction had the virtual fence moved 20 m every other day for eleven days, and in the two instant introductions, the physical fence was removed in one day. Warnings and impulses were recorded during an 11-day learning period and a 26-day post-learning period, using the impulses per warning to quantify if the cattle adapted. Case studies A and B showed a significant reduction in the warnings and impulses, but only A showed a significant reduction in the impulses per warning when comparing the learning period to the post-learning period. Due to the non-standardised experiments, it was not possible to conclude if the number of experienced cattle or the introduction method had an effect on the results.
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