Pig

The effects of pregnancy and parity number on behavioural and physiological responses related to the welfare status of individual and group-housed pigs

Pigs housed in tether stalls showed immunosuppression suggesting that their welfare was impaired. It was concluded that unresolved aggression in tether-housed pigs may result in a chronic stress response.

Year Published: 1987Animal Type: Pig

Citation: Barnett, J. L., Hemsworth, P. H., Winfield, C. G. et al. 1987. The effects of pregnancy and parity number on behavioural and physiological responses related to the welfare status of individual and group-housed pigs. Applied Animal Behaviour Science 17, 229-243.

The impact of handling and environmental factors on the stress response and its consequences in swine

Animals who are fearful of humans show a marked increase in corticosteroid levels both in the presence and in the absence of people. A poor human-animal relationship, in which swine are fearful of human, should be avoided in animal production...

Year Published: 1986Animal Type: Pig

Citation: Barnett, J. L., Hemsworth, P. H. 1986. The impact of handling and environmental factors on the stress response and its consequences in swine. Laboratory Animal Science 36, 366-369.

The effect of environmental enrichment on aggression in newly weaned pigs

The provision of enrichment object [tire hung from chains, pig-pacifier toy , teeter-totter ] reduced aggression among newly weaned pigs.

Year Published: 1987Animal Type: Pig

Citation: Schaefer, A. L., Salomons, M. O., Tong, A. K. W. et al. 1987. The effect of environmental enrichment on aggression in newly weaned pigs. Canadian Journal of Animal Science 67, 1169 (Abstract).

Learning and the training of farm animals

Habituation attenuates the fear normally associated with novel situations.

Year Published: 1987Animal Type: All/General, Cattle, Pig, Sheep

Citation: Kilgour, R. 1987. Learning and the training of farm animals. The Veterinary Clinics of North America 3, 269-284.

Toys, mingling and driving reduce excitability in pigs

Pigs offered toys are less excitable than pigs who have no access to toys.

Year Published: 1987Animal Type: Pig

Citation: Grandin, T., Curtis, S. E., Taylor, I. A. 1987. Toys, mingling and driving reduce excitability in pigs. Journal of Animal Science 65(Supplement 1), 230 (Abstract).

The Veterinary Clinics of North America, Farm Animal Behavior: Animal Handling

Pigs raised in pens with hanging rubber hose toys and weekly petting were less excitable compared to pigs raised with no extra environmental stimulation.

Year Published: 1987Animal Type: Pig

Citation: Grandin, T. 1987. Animal handling. The Veterinary Clinics of North America 3, 323-338.

Food restriction as a cause of stereotypic behaviour in tethered gilts

Food restriction can be a cause of stereotypic behaviors in pigs. The implication is that animals given small amounts of food should not be closely confined and that confined animals should not be deprived of food.

Year Published: 1987Animal Type: Pig

Citation: Appleby, M. C., Lawrence, A. B. 1987. Food restriction as a cause of stereotypic behaviour in tethered gilts. Animal Production 45, 103-110.

Environmental enrichment for confinement pigs

Pigs have definite toy preferences. If a ball rolls into the manure they will no longer play with it. This is why we used suspended from the ceiling. Then the young pigs are given a choice between hanging chains, cloth...

Year Published: 1988Topics: Environmental EnrichmentAnimal Type: Pig

Citation: Grandin, T. 1988. Environmental enrichment for confinement pigs. Livestock Handling Committee Proceedings of the 1988 Annual Meeting, Kansas City, Missouri.

Measuring hunger in the pig using operant conditioning: The effect of food restriction

Using operant methods, it was demonstrated that boars fed at maintenance levels may be constantly hungry. The hunger resulting from low food levels may act as a major source of stress under certain husbandry conditions such as tether and stall...

Year Published: 1988Animal Type: Pig

Citation: Lawrence, A. B., Appleby, M. C., Macleod, H. A. 1988. Measuring hunger in the pig using operant conditioning: The effect of food restriction. Animal Production 47, 131-137.

Enrichment of the production environment and the enhancement of welfare through the use of the Edinburgh Family Pen System of pig production

Pigs in family pens [four sows with offspring in four pens each furnished with nest area, activity area, peat area, connecting faeces corridors, a familiar mature boar joining the group for a period from day 14 to day 56] exhibited...

Year Published: 1988Animal Type: Pig

Citation: Kerr, S. G. C., Wood-Gush, D. G. M., Moser, H. et al. 1988. Enrichment of the production environment and the enhancement of welfare through the use of the Edinburgh Family Pen System of pig production. Research and Development in Agriculture 5, 171-186.