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Effects of a maximum permissible journey time (31 h) on physiological responses of fleeced and shorn sheep to transport, with observations on behaviour during a short (1 h) rest-stop

Published online by Cambridge University Press:  02 September 2010

R. F. Parrott ,
S. J. G. Hall ,
D. M. Lloyd ,
J. A. Goode  and
D. M. Broom
R. F. Parrott
Affiliation:
MAFF Laboratory of Welfare and Behaviour, The Babraham Institute, Cambridge CB2 4AT
S. J. G. Hall
Affiliation:
Department of Clinical Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge CB3 0ES
D. M. Lloyd
Affiliation:
MAFF Laboratory of Welfare and Behaviour, The Babraham Institute, Cambridge CB2 4AT
J. A. Goode
Affiliation:
MAFF Laboratory of Welfare and Behaviour, The Babraham Institute, Cambridge CB2 4AT
D. M. Broom
Affiliation:
Department of Clinical Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge CB3 0ES
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Abstract

Concern for the welfare of export lambs during long-distance road transport has prompted much research and a recommended change in procedure. The latter envisages an absolute maximum journey time of 31 h and includes a rest-stop (minimum duration 1 h) for feeding and watering. In the present experiment, the physiological and behavioural responses to this new protocol have been investigated in fleeced and shorn lambs (no. = 10 per group) provided with venous catheters and heart rate monitors. The two groups were loaded on a vehicle into separate adjacent pens and driven for 14 h; then unloaded into a lairage, where their behaviour was recorded. After 1 h they were reloaded and driven for a further 15·5 h, finally arriving at a slaughterhouse where carcass condition was evaluated. Blood samples collected at 30- or 60-min intervals by experimenters travelling with the animals were analysed to determine haematocrit, plasma osmolality, plasma concentrations of glucose, creatinine phosphokinase (CPK), and the stress-responsive hormones, cortisol, prolactin, adrenaline and noradrenaline. The results showed that haematocrit increased after loading although the general trend during transport, as with osmolality, was a decline (P < 0·05). No significant changes in plasma glucose were detected but CPK increased in fleeced lambs after loading (P < 0·05). Cortisol release was stimulated by loading, especially in fleeced sheep (P < 0·001) but returned to home pen values within 6 h; heart rates changed in a similar manner. Transport did not markedly affect prolactin release although concentrations were consistently greater in fleeced sheep (P < 0·001). Noradrenaline, however, tended to be higher in shorn animals (P < 0·05). In lairage, both groups readily consumed hay, and especially concentrates, but the shorn lambs spent more time eating (P < 0·001). None of the shorn sheep, and only a few fleeced animals, drank water. There was no evidence for differences in weight loss between the two groups during the experiment and carcass quality at slaughter was within the normal expected range. The implications of these, and other related studies, for future transport policy are discussed, with particular reference to rest-stop duration and handling procedures.

Keywords

behaviourhormonessheeptransportwelfare
Type
Research Article
Information
Animal Science , Volume 66 , Issue 1 , February 1998 , pp. 197 - 207
Copyright
Copyright © British Society of Animal Science 1998

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References

Black, H. J. and Chestnutt, D. M. B. 1992. Effect of shearing and level of concentrate feeding on the performance of finishing lambs Animal Production 54: 221–228.Google Scholar
Broom, D. M., Goode, J. A., Hall, S. J. G., Lloyd, D. M. and Parrott, R. F. 1996. Hormonal and physiological effects of a 15 hour road journey in sheep: comparison with the responses to loading, handling and penning in the absence of transport British Veterinary Journal 152: 593–604.CrossRefGoogle ScholarPubMed
Cockram, M. S., Kent, J. E., Goddard, P. J., Waran, N. K., McGilp, I. M., Jackson, R. E., Muwanga, G. M. and Prytherch, S. 1996. Effect of space allowance during transport on the behavioural and physiological responses of lambs during and after transport Animal Science 62: 461–477.CrossRefGoogle Scholar
Council of the European Communities. 1995. Council directive 95/29/EC. Official journal of the European Communities L148: 52–63.Google Scholar
Fulkerson, W. J. and Tang, B. Y. 1979. Ultradian and circadian rhythms in the plasma concentration of cortisol in sheep, journal of Endocrinology 81: 135–141.CrossRefGoogle ScholarPubMed
Hall, S. J. G., Schmidt, B. and Broom, D. M. 1997. Feeding behaviour and the intake of food and water by sheep after a period of deprivation lasting 14 h Animal Science 64: 105–110.CrossRefGoogle Scholar
Jarvis, A. M. and Cockram, M. S. 1994. Effects of handling and transport on bruising of sheep sent directly from farms to slaughter Veterinary Record 135: 523–527.CrossRefGoogle ScholarPubMed
Jarvis, A. M. and Cockram, M. S. 1995. Some factors affecting resting behaviour of sheep in slaughterhouse lairages after transport from farms Animal Welfare 4: 53–60.CrossRefGoogle Scholar
Knowles, T. G., Brown, S. N., Warriss, P. D., Phillips, A. J., Dolan, S. K., Hunt, P., Ford, J. E., Edwards, J. E. and Watkins, P. E. 1995. Effects on sheep of transport by road for up to 24 hours Veterinary Record 136: 431–438.CrossRefGoogle ScholarPubMed
Knowles, T. G., Maunder, D. H. L. and Warriss, P. D. 1994a. Factors affecting the incidence of bruising in lambs arriving at one slaughterhouse. Veterinary Record 134: 44–45CrossRefGoogle ScholarPubMed
Knowles, T. G., Maunder, D. H. L., Warriss, P. D. and Jones, T. W. H. 1994b. Factors affecting the mortality of lambs in transit to or in lairage at a slaughterhouse, and reasons for carcase condemnations. Veterinary Record 135: 109–111.CrossRefGoogle ScholarPubMed
Knowles, T. G., Warriss, P. D., Brown, S. N. and Kestin, S. C. 1994c. Long distance transport of export lambs. Veterinary Record 134: 107–110.CrossRefGoogle ScholarPubMed
Knowles, T. G., Warriss, P. D., Brown, S. N., Kestin, S. C., Edwards, J. E., Perry, A. M., Watkins, P. E. and Phillips, A. J. 1996. Effects of feeding, watering and resting intervals on lambs transported by road and ferry to France. Veterinary Record 139: 335–339.CrossRefGoogle ScholarPubMed
Knowles, T. G., Warriss, P. D., Brown, S. N., Kestin, S. C., Rhind, S. M., Edwards, J. E., Anil, M. H. and Dolan, S. K. 1993. Long distance transport of lambs and the time needed for subsequent recovery Veterinary Record 133: 286–293.CrossRefGoogle ScholarPubMed
Ley, S. J., Livingston, A. and Waterman, A. E. 1992. Effects of clinically occurring chronic lameness in sheep on the concentrations of plasma noradrenaline and adrenaline. Research in Veterinary Science 53: 122–125.CrossRefGoogle ScholarPubMed
Parrott, R. F. and Goode, J. A. 1992. Effects of intracerebroventricular corticotrophin-releasing hormone and intravenous morphine on cortisol, prolactin and growth hormone secretion in sheep Domestic Animal Endocrinology 9: 141–149.CrossRefGoogle ScholarPubMed
Parrott, R. F., Lloyd, D. M. and Goode, J. A. 1996. Stress hormone responses of sheep to food and water deprivation at high and low ambient temperatures Animal Welfare 5: 45–56.CrossRefGoogle Scholar
Parrott, R. F., Misson, B. H. and de la Riva, C. F. 1994. Differential stressor effects on the concentrations of cortisol, prolactin and catecholamines in the blood of sheep Research in Veterinary Science 56: 234–239.CrossRefGoogle ScholarPubMed
Salah, M. S., Alshaikh, M. A., Al-Saiadi, M. Y. and Mogawer, H. H. 1995. Effect of prolactin inhibition on thermoregulation, water and food intakes in heat-stressed fat-tailed male lambs Animal Science 60: 87–91.CrossRefGoogle Scholar