Determination of Optimal Angles for Intraoral Occlusal Views for the Radiographic Imaging of Dental Structures in the Cynomolgus Monkey (Macaca fascicularis).

Highly detailed dental radiographs aid in obtaining an accurate diagnosis of common dental abnormalities. This paper compares three oblique angle intraoral occlusal views for the evaluation of the teeth of the maxillary and mandibular arcade of cynomolgus monkeys. The best views for isolating tooth structures of the canine, premolar, and molar teeth of the mandibular and maxillary arcades were obtained by directing the primary beam 608 relative to the hard palate in the transverse plane.

Spontaneous hyperthyroidism in an aged male and female Macaca mulatta.

A 31-year-old male and a 31-year-old female rhesus monkey developed clinical signs consistent with hyperthryoidism. These included a ravenous appetite, hyperactivity, and accentuated ratchet movement and hand tremors while performing fine motor tasks. Bilaterally enlarged thyroid glands were palpated in both monkeys.

Mycobacterium kansasii infection in squirrel monkeys (Saimiri sciureus sciureus).

This report documents asymptomatic infections of Mycobacterium kansasii in four of five tuberculin positive squirrel monkeys (Saimiri sciureus sciureus). The mycobacterial DNA amplified by polymerase chain reaction (PCR) from a bronchial lymph node had no affinity for the species specific probes of M. tuberculosis, M.

Short-term evaluation of a foraging device for non-human primates.

In the USA, any institution involved in using non-human primates for research has had, for regulatory reasons, to address the psychological needs of these animals. Enriching the environment through the use of foraging devices has been one method and a study was designed to evaluate the short-term effect of a new foraging device on singly-housed cynomolgus monkeys. The study was divided into 3 one-week periods of observation: baseline, device filled with normal ration, and device filled with a novel food.

Transfer of adult Strongylus vulgaris via stomach tube.

Patent infections with Strongylus vulgaris were established in 6 of 8 helminth-free ponies given 41 to 101 adult worms via nasogastric tube. The parasites were removed from the cecum and ventral colon and transferred within 1 to 2 hours of the death of the donor horses. Eggs were found in the feces of the recipients in 2 or 3 days; egg counts reached maximum, 28 eggs per gram of feces, at 4 weeks after ponies were inoculated.

Effect of diethylcarbamazine on Strongylus vulgaris infection in ponies.

Shetland ponies (n = 4) were given diethylcarbamazine orally at a dose level of 22 mg/kg/day for 1 week before they were inoculated with 800 third-stage larvae of Strongylus vulgaris. Treatment was continued for 86 (1 pony) or 200 days (3 ponies) after the inoculation. As compared with the changes seen in a similarly inoculated group of ponies (group 2) which were not treated, diethylcarbamazine did not prevent the clinical or pathologic changes due to the migrating larvae.

In vitro killing of Pasteurella multocida: the effect of rabbit granulocyte and specific antibody source.

In vitro granulocyte-killing assays were performed to examine the ability of granulocytes from pasteurella-free or immunized rabbits, the in combination with specific immune serum, to kill Pasteurella multocida. Granulocytes from healthy rabbits and from rabbits with P multocida infections were equally competent. Granulocyte source, serum source, and specific antibody titer had no effect on granulocyte phagocytic activity.