Reduction in pain suffered by lambs at castration
| Autor: | V. Molony, M.J. Graham, B.D. Hosie, J.E. Kent |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Male
Hydrocortisone Posture Pain Animal Welfare chemistry.chemical_compound Diclofenac Burdizzo medicine Animals Castration Combined method Local anaesthetic Sheep General Veterinary business.industry Peak plasma chemistry Sustained response Anesthesia Animal Science and Zoology business Intramuscular injection medicine.drug Anesthesia Local |
| Zdroj: | Veterinary journal (London, England : 1997). 153(2) |
| ISSN: | 1090-0233 |
| Popis: | Summary The acute pain produced by bloodless castrators was studied by comparing the behavioural and plasmacortisol changes in groups ( n =8) of 3-week-old Dorset cross lambs after castration with a 22 cm (9″) Burdizzo, a new power assisted castrator and by a combined method using a Burdizzo and elastrator ring. The time spent in abnormal postures (52–58 min) and the peak cortisol response (110–120 mmol l −1 ) were similar for the three methods, although the powered castrator produced a more sustained response. The Burdizzo method halved the incidence of active behaviours compared with the powered castrator and combined methods (16 versus 30, 32 counts). Intratesticular local anaesthetic administered 2 min before the Burdizzo castrator and combined method, or intramuscular injection of the non-steroidal anti-inflammatory drug diclofenac, 20 min before the application of a Burdizzo, significantly reduced the peak plasma cortisol response to 80 nmol l −1 . Diclofenac also significantly reduced the time spent trembling or in abnormal postures. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect