Spine Research

Cervical Dislocation Open Access Articles

The main objective of this study was to assess the efficacy of mechanical cervical dislocation using the Koechner Euthanasia Device Model C (KED) as compared to manual cervical dislocation in layer chickens. Laying hens and/or roosters in three different age groups (12, 27–29, and 65–70 weeks old) were randomly assigned to at least one of three experimental groups: manual cervical dislocation in conscious birds (CD), manual cervical dislocation in anesthetized birds (aCD), or mechanical cervical dislocation by KED in anesthetized birds (aMCD). Anesthetized birds received an intramuscular dose of 0.3 mg/kg medetomidine and 30 mg/kg of ketamine to achieve clinical anesthesia. A comparison of CD vs. aCD responses confirmed that the anesthetic plane abolished or reduced clonic convulsions, third eyelid reflex, tonic convulsions, and cloacal relaxation. Time to loss of the pupillary pupillary reflex (~123 s), and time to asystole (~172 s) were longer (p < 0.001) within the birds within the aMCD group than aCD (~71 and ~137 s, respectively). Radiographs revealed that the bulk of the birds killed by manual cervical dislocation (CD + aCD) had dislocations between the skull and atlas (C1) or between cervical vertebrae C1–C2. The KED resulted in a majority of dislocations at C2–C3. Birds killed by manual cervical dislocation presented more subdural and parenchymal hemorrhage in the brain stem compared to birds killed by KED. Radiographs indicated the presence of fractures during a few birds killed by either method (CD + aCD versus aMCD). Compared to manual CD, KED resulted in less brain trauma and a extended latency to cerebral death , indicating a lower efficacy of KED as an on-farm killing method.

Google Scholar citation report

Citations : 128

Spine Research received 128 citations as per Google Scholar report

Abstracted/Indexed in

Google Scholar
China National Knowledge Infrastructure (CNKI)
Directory of Research Journal Indexing (DRJI)
WorldCat
International Committee of Medical Journal Editors (ICMJE)
Secret Search Engine Labs
Euro Pub

Cervical Dislocation Open Access Articles

High Impact List of Articles

Conference Proceedings

Relevant Topics in Neurology & Psychiatry

Google Scholar citation report

Citations : 128

Abstracted/Indexed in

Open Access Journals