By Colin Harrison, Alan Greensmirh.

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Энциклопедия для орнитолога. 422 страницы посвящённые птицам и всему, что с ним связано

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Congenital infection also occurs. Because of its zoonotic potential , animals positive forthe virus should be euthanased . In humans LCMV produces influenza-like symptoms that can progress to choriomeningitis. Neoplasia Malignant lymphomas are the most common neoplasm in Syrian hamsters and consist predominantly of lymphosarcomas of the lymph gland and small intestine and reticulum cell sarcomas of the lymph nodes . Polycystic disease Polycystic disease in hamsters is a benign congenital disease, generally observed incidentally.

To restrain them for examination , grip the skin over the neck and dorsum between thumb and fingers. An aggressive hamster may turn and bite if the skin is held too loosely. If startled , hamsters will exhibit threatening behaviour by roll ing on their backs and vocalizing , and they may bite. 28 Manual of Exotic Pets Common conditions III hamsters become irritable and often bite. They may move reluctantly, with a stiff gait. Their eyes may look dull and sunken and often produce a conjunctival discharge.

With age the glands become darkly pigmented and covered with coarse fur. Secretions from these sebaceous glands playa part in territorial marking and mating behaviour. Hamsters in the wild are omnivorous , hoard food and are coprophagic. Pet hamsters are usually fed a commercial hamster mix, which can be supplemented with fruit, vegetables and nuts. Hamsters begin eating solid foods at 7-10 days of age . Adult hamsters consume about 5-10 g of food a day. The daily calorie requirement is as estimated for rats and mice: Maintenance = 110 W 075 kcal/day where W = bodyweight in kg.

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Birds of the world by Colin Harrison, Alan Greensmirh.

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