ZBTK.htm

NR ZBTK

AU Blackmore,D.K.

TI Problems associated with non-penetrative percussion stunning of sheep

QU CEC-Seminar "Stunning of Animals for Slaughter", 13.-15. Oktober 1982, ZEIST / Niederlande, Martinus Nijhoff Publ., 1983

PT Proceedings

AB More than 500 sheep and calves were subjected to an experimental form of non-penetrative percussion stunning (NPPS). Based on studies of electroencephalograms, the technique was capable of inducing immediate insensibility, and behavioural studies indicated that the duration of insensibility was more than 30s. In designing commercial percussive stunning it is necessary to use data obtained from experimental instruments. Thus the impulse of the impact applied to the head of animals by experimental instruments must be known. This can be determined by measuring the displacement of a pendulum of known mass by the experimental percussive instrument. As opposed to the use of a captive bolt, NPPS does not cause contamination of the brain. However, in animals with relatively thin skulls, such as young calves, an unacceptable degree of intracranial haemorrhage occurred. NPPs does not cause the immediate death of an animal. Compared with "head-only" electrical methods of stunning, which induce a similar period of reversible insensibility, NPPS significantly reduces the prevalence of "blood splash" in lamb carcases. Further developments in NPPS may be indicated if this carcase defect becomes a more import marketing consideration.

SP englisch

Autorenindex - authors index
Startseite Betäubung - home page Stunning