Evaluation of intramuscular ketoprofen and butorphanol as analgesics in chain dogfish (Scyliorhinus retifer)
Abstract 10.1002/zoo.20105.abs The mediation of nociception with analgesic medications has not been well documented in elasmobranchs. The purpose of this study was to determine effective analgesic doses of the opioid agonist-antagonist, butorphanol, and the non-steroidal anti-inflammatory drug, ketoprofen, in an elasmobranch. This was evaluated by repetitively assessing minimum anesthetic concentrations of the immersion anesthetic, tricaine […]
Morphology of the blood cells from three species of wobbegong sharks (Orectolobus species) on the east coast of New South Wales
Abstract 10.1002/zoo.20079.abs This study is the first study to describe blood cell morphology, using light microscopy, for three species of wild-caught wobbegong shark. Blood cell morphology was similar to that described previously in fish. Wobbegong sharks possess erythrocytes, at least three different morphological types of thrombocytes, lymphocytes, eosinophils, neutrophils, granuloblasts and monocytes. No basophils were […]
Tonic immobility in 12 elasmobranchs: Use as an aid in captive husbandry
Abstract 10.1002/zoo.1430130406.abs Tonic immobility (TI), also known as animal hypnosis, has been observed in a wide variety of taxa and reported in all vertebrate classes with the exception of Agnatha. To date, TI has been reported in six species of elasmobranchs. Preliminary results are presented here for five species of galeomorph sharks, one species of […]