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Animal Science Database

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Abstract

We examined effects of deprivation of feed, social contact and bedding on the choice behaviour in Y maze tests. Eighty pigs were used to study two main effects: feed (estimated voluntary feed intake (VFI) vs. 70% VFI) and bedding (presence vs. absence), experiment 1; social contact (full vs....

Author(s)
Hemsworth, P. H.; Smith, K.; Karlen, M. G.; Arnold, N. A.; Moeller, S. J.; Barnett, J. L.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Behavioural Processes, 2011, 87, 2, pp 210-217
Abstract

The welfare of sows in gestation accommodation, and in particular the use of gestation stalls, is a major issue of concern among the animal-welfare community and pig producers. The objective of the present experiment was to investigate the effects of width (0.6 m v. 0.75 m) and length (2.0 m v. 2.2 ...

Author(s)
Barnett, J. L.; Hemsworth, P. H.; Butler, K. L.; Schirmer, B. N.; Borg, S. S.; Cronin, G. M.
Publisher
CSIRO Publishing, Collingwood, Australia
Citation
Animal Production Science, 2011, 51, 5, pp 471-480
Abstract

An experiment was conducted to compare behaviour, in particular social and feeding behaviour, and consequently growth performance of group-housed entire and castrated male pigs during the finisher stage of production. Three treatments: (1) entire males, (2) immuno-castrated males, treated with...

Author(s)
Cronin, G. M.; Dunshea, F. R.; Butler, K. L.; McCauley, I.; Barnett, J. L.; Hemsworth, P. H.
Publisher
Elsevier Science B.V., Amsterdam, Netherlands
Citation
Applied Animal Behaviour Science, 2003, 81, 2, pp 111-126
Abstract

Pregnant Large White × Landrace gilts in groups of 4 were housed at 1.97 or 0.9 m2/pig, with or without partial stalls and fed within the partial stalls or on the floor of the pen. In the 90 min following grouping of the (unfamiliar) pigs, the presence of the partial stalls reduced the number of...

Author(s)
Barnett, J. L.; Hemsworth, P. H.; Cronin, G. M.; Newman, E. A.; McCallum, T. H.; Chilton, D.
Citation
Applied Animal Behaviour Science, 1992, 34, 3, pp 207-220
Abstract

Plasma free-corticosteroid concentrations, aggressive behaviour and levels of motivation to interact socially and explore a novel environment were observed to test the hypothesis that the chronic stress response previously observed in tether-housed pigs may have been due to unresolved aggression...

Author(s)
Barnett, J. L.; Hemsworth, P. H.; Winfield, C. G.
Citation
Applied Animal Behaviour Science, 1987, 18, 2, pp 133-142
Abstract

The influence of 4 handling treatments on behaviour, growth and free corticosteroid concentrations was studied in 32 young female pigs housed in individual pens. The pleasant treatment involved stroking the pig whenever it approached the experimenter, the unpleasant treatment involved forcing the...

Author(s)
Hemsworth, P. H.; Barnett, J. L.; Hansen, C.
Citation
Applied Animal Behaviour Science, 1987, 17, 3/4, pp 245-252
Abstract

Plasma free-corticosteroid concentrations, aggressive behaviour and motivation to interact socially and explore a novel environment were observed in 39 female pigs housed either in groups of 4-7 animals or in tether stalls over 2 parities. Gilts in tethers in their first pregnancy had significantly ...

Author(s)
Barnett, J. L.; Hemsworth, P. H.; Winfield, C. G.; Fahy, V. A.
Citation
Applied Animal Behaviour Science, 1987, 17, 3/4, pp 229-243
Abstract

Moving pigs into groups after 5 weeks in individual pens resulted in short-term stress response as shown by an increased corticosteroid concentration measured 5.5 h later, but within 24 h the hormonal pattern established was of higher levels in the morning than in the afternoon. In group-penned...

Author(s)
Barnett, J. L.; Cronin, G. M.; Winfield, C. G.
Citation
General and Comparative Endocrinology, 1981, 44, 2, pp 219-225