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At least 181 records · Page 10Linked to original sources

Pasteurella multocida infection in Japanese quail (Coturnix coturnix japonica).

Three flocks of Japanese quail, approximately 75,000 birds each, experienced acute high mortality beginning at 24 to 28 days of age. Gross lesions were absent or were composed of either multifocal small pale areas on livers and spleens or lungs slightly darker in color than normal. Histopathology revealed multifocal splenic and hepatic necrosis and interstitial pneumonia. Pasteurella multocida, serotype 3,4, was isolated from affected tissues. The quail were successfully treated with chlortetracycline, and the organism was apparently eliminated from the premises by thorough cleaning, disinfection, and insect and rodent control. Experimental studies showed Japanese quail to be highly susceptible to disease caused by the P. multocida isolated from the affected flocks.

Animals↗

[A natural focus of icterohemorrhagic leptospirosis in the floodplain of the lower Don and means for its eradication].

An active natural focus of icterohemorrhagic leptospirosis has been detected in the area of fish-breeding ponds in Rostov Province, where the intensive epizootic among the population of Norway rats is observed the whole year round (574 animals have been examined, 56 cultures have been isolated). The epizootic process reaches its highest intensity in autumn (the proportion of infected animals exceeds 50%). This natural focus in the area of fish-breeding ponds is epidemiologically dangerous. The limitation of its infectious potential is possible by means of poisoned baits.

Animals↗

Laboratory evaluation of bait base for the control of Indian field mouse, Mus booduga (Gray).

Species specific bait evaluation is important for the successful control of rodent populations through rodenticides. Experiments were conducted on the bait preference of Indian field mouse, M. booduga. Results reveal that rice normal grain, rice cracked grain, rice +4% coconut oil and millet +2% coconut oil may be used as effective poison carriers for the Indian field mouse. Additives like oil, sugar and salt did not improve the palatability of bait materials.

Animals↗

Thallium loading in owls and other birds of prey in Denmark.

Due to previous findings of increased concentrations of the rodenticid, thallium, in free-living Danish carnivores, thallium analysis has been carried out on material from 77 owls and birds of prey. Thallium was found in 2/3 of the birds and in 10% the concentration was so high that the load of thallium may have caused the death of the birds. The load of thallium in birds of prey was lower than concentrations found in carnivores, probably because poisoning caused by direct intake of thallium baits placed for rodent control does not seem to occur among birds of prey. From the investigation of this limited number of birds, it is not possible to tell if thallium did have any influence on the maintenance of a healthy population of birds of prey, but the large number of thallium loaded birds also justify the restrictions in the sue of thallium which were given from the 1st of July, 1975.

Animals↗