Otobius megnini Infestation in Three Dogs

Résumé— Trois cas d'infestation par Otobius megnini sont décrits. Le motif de consultation chez les deux chiens ne recevant par de corticoïdes était des secousses de la tête. L'éxérèse des tiques chez deux chiens et l'utilisation d'une préparation otologique à base de thiabendazole-dexaméthasone-néomycine chez le troisième, ont permis un contrôle de l'infestation. [White, S. D., Scott, K. V., Cheney, J. M. Otobius megnini infestation in three dogs (Infestation de trois chiens par Otobius megnini).
Resumen— Describimos tres casos de infestación por Otobius megnini en la especie canina. Los dos perros que no recibian tratamiento con corticoesteroides sacudian la cabeza. La infestación se resolvió quitando los piojos en dos casos y mediante el uso de una preparatión ótica con tiabendazol, dexametasona y neomicina, en el tercero. [Otobius megnini infestation in three dogs (Infestación por Otobius megnini en tres perros).
Abstract— Three cases of Otobius megnini infestation in dogs are described. Head-shaking was the presenting complaint in the two dogs not receiving systemic corticosteroids. Removal of the ticks in two dogs, and the usage of a thiabendazole-dexamethasone-neomycin otic preparation in the third, resulted in resolution of the infestation.     

Surgical Correction of Angular Limb Deformity of the Forelimbs of a 7-month-old Calf

Severe angular limb deformity of the forelimbs of a 7-month-old calf was treated by temporary physeal bridging of the distal radial physes using screws and wires. Marked straightening of the deformed forelegs and improvement in ambulation were noted when the calf was evaluated at three and nine months after surgery.     

Ureteral Function and Healing Following Microsurgical Transureteroureterostomy in the Dog

An oblique end-to-side anastomosis of one ureter to the contralateral ureter (transureteroureterostomy) may permit salvage of a kidney whose middle or distal ureter is not salvageable by standard repair techniques. This procedure was done with intraoperative magnification and microsurgical techniques in 5 experimental dogs. Animals were euthanized for healing studies at 1, 3 and 5 weeks, and the results correlated with postoperative and preterminal excretory urograms. Healing of the anastomosis was organized by layers and completed both grossly and histologically in all animals at 5 weeks. Ureter function was retained except for short-term, mild, postoperative hydroureter. Potential clinical indications for transureteroureterostomy are: 1) middle or distal ureteral transection due to trauma; 2) delayed recognition of iatrogenic intraoperative severence or ligation; 3) distal ureteral neoplasia; and 4) selected cases of ectopic ureter. Complications include dehiscence, stricture, or the dissemination of infection or neoplasia which would compromise proximal ureters and both kidneys.     

Epidural Analgesia in the Dog

Fifty-four noncesarean cases in which epidural analgesia was used as the primary control of surgical pain in the dog are presented. The technique, indications, mechanisms of action, advantages, and disadvantages are discussed. Our experience with this proven technique has shown epidural analgesia to be an effective, practical, and simple means of operative pain control with wide application beyond the usual indication of cesarean section.     

Occurrence of an exceptional catch of pelagic juvenile lingcod (Ophiodon elongatus) off Point Reyes, California

An exceptionally large catch of pelagic juvenile lingcod (Ophiodon elongatus) was made just offshore of Point Reyes, California in 1990. Results of 678 midwater trawls from annual surveys from 1983 to 1990 show that pelagic juvenile lingcod have a strong nearshore distribution and were most abundant in the Gulf of the Farallones, with a mean abundance of 5.0 per trawl. Otoliths from fish taken in the large catch were used to estimate parameters of a log-transformed Gompertz growth model, which was then used to calculate hatch dates. Hatching peaked around 24 March and ranged from 10 March to 19 April, implying a January-February spawning season for lingcod off central California. The large catch was associated with an anticyc-lonic eddy which would lead to water being trapped near the coast; convergence of fish associated with the eddy may have been due to either physical or biological effects.     

Conserving Biological Diversity and the Conservation Reserve Program

ABSTRACT The lack of success with the endangered species approach to conserving biodiversity has led to calls for programs that are designed to maintain viable populations of species before they become endangered. While wildlife preserves are an important component of biodiversity conservation, effective protection of species will often take place on land that is used primarily for purposes other than wildlife habitat. The suitability of these lands as wildlife habitat can be influenced by government programs. An important example of a program affecting agricultural land use is the Conservation Reserve Program (CRP), which is the largest land retirement program in US. history. The expected down-sizing of the program in the mid 90s sharpens the need for improved targeting if the program is to continue to provide wildlife benefits. This paper studies how well the current CRP fares as a biodiversity conservation program and suggests possible ways to target the CRP to conserve wildlife habitat. A methodology for tackling this task in Oregon is outlined.     

NORMAL THORACIC AND ABDOMINAL DISTRIBUTION OF 2-DEOXY-2-[18F]FLUORO-d-GLUCOSE (18FDG) IN ADULT CATS

Positron emission tomography (PET) with 2-deoxy-2-[¹⁸F]fluoro- d -glucose (¹⁸FDG) is an important imaging modality for diagnosis and staging of human neoplastic disease. The purpose of this study is to describe the normal ¹⁸FDG uptake in adult cats. Six adult healthy female cats were used. Cats were sedated and then injected intravenously with 74.0±13.0 (mean±SD) MBq of ¹⁸FDG. General anesthesia was induced and cats were placed in ventral recumbancy on the PET scanner's bed. Static images using multiple bed positions were acquired approximately 60–90 min after injection. A transmission scan was acquired at each bed position utilizing a ⁵⁷Co point source to perform attenuation and scatter correction. Regions of interest (ROIs) were drawn over the liver, right and left renal cortices, left ventricular wall, and wall of ascending and descending colonic segments. Standardized uptake values (SUV) were calculated using an established formula. Kidneys and intestinal tract had relatively intense uptake of ¹⁸FDG; liver activity was intermediate; the spleen was not identified in any of the cats. Cardiac activity was variable but intense activity was noted in the left ventricular myocardium in most cats. No appreciable lung uptake was noted. Mean±SD SUV values were calculated. This study established the normal pattern of uptake of ¹⁸FDG in adult cats and provided baseline data for comparison with future studies evaluating a variety of neoplastic and nonneoplastic diseases.