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References

Top-down aerial shot of a herd of cows scattered across a large grassy field, showing variation in cow color and direction, with a sharp contrast between the grazed & ungrazed pasture.

AWC – Animal Welfare Committee (2022) Opinion on the welfare implications of using virtual fencing systems to contain, move and monitor livestock. https://www.gov.uk/government/publications/awc-opinion-on-the-welfare-implications-of-using-virtual-fencing-for-livestock

Bran, J.A., Daros, R.R., von Keyserlingk, M., LeBlanc, S.J, Hötzel, M.J. 2018. Cow- and herd-level factors associated with lameness in small-scale grazing dairy herds in Brazil. Preventive Veterinary Medicine, 151: 79-86

Campbell, D.L., Haynes S.J., Lea JM., Farrer, W.J and Lee C. 2019. Temporary exclusion of cattle from a riparian zone using virtual fencing technology. Animals 9: 5-17.

Chesterton R.N, Pfeiffer D.U, Morris R.S and Tanner, C.M. 1989. Environmental and behavioural factors affecting the prevalence of foot lameness in New Zealand dairy herds — a case-control study, New Zealand Veterinary Journal, 37:4, 135-142.

Kearton, T., Marini, D., Cowley, F., Belson, S., Keshavarzi, H., Mayes, B., and Lee, C. 2020. The influence of predictability and controllability on stress responses to the aversive component of a virtual fence. Frontiers in Veterinary Science 7: 986-997.

Lee, C., Colditz, I. G., and Campbell, D. L. 2018. A framework to assess the impact of new animal management technologies on welfare: A case study of virtual fencing. Frontiers in Veterinary Science 5: 187-193.

Lee, C., and Campbell, D. L. 2021. A multi-disciplinary approach to assess the welfare impacts of a new virtual fencing technology. Frontiers in Veterinary Science 8: 637709.

Mounaix B, Boivin X, Brule A, Schmitt T - 2014 - Cattle behaviour and the human-animal relationship: Variation factors and consequences in breeding. https://edepot.wur.nl/312679

Rollin B.E. 2006. Animal rights and human morality (3rd Edition) Prometheus Books, Amherst, NY. pp 91-94.

Verdon, M., Lee, C., Marini, D., and. Rawnsley, R. 2020. Pre-exposure to an electrical stimulus primes associative pairing of audio and electrical stimuli for dairy heifers in a virtual fencing feed attractant trial. Animals (Basel) 10:217-235.

Weiss, J. M. (1970). Somatic effects of predictable and unpredictable shock. Psychosomatic Medicine, 32(4), 397-408.