犬黄曲霉毒素中毒

黄曲霉毒素是由黄曲霉和寄生曲霉产生的有毒代谢产物。当犬采食被黄曲霉和寄生曲霉污染的食物,常可发生中毒。     

犬的繁殖

犬是单次发情的,小型品种犬到达性成熟要比大型品种早些,公犬的性成熟比母犬延迟几周,野犬只在冬季交配,而家犬四季都能繁殖,但发情的频率趋向于春末和冬初。     

Canine thymoma

Thymoma is an uncommon canine neoplasm of thymic epithelial cells. It is seen in various breeds but may occur more frequently in German Shepherd Dogs. Middle-aged or older dogs can be affected and no sex predilection exists. A paraneoplastic syndrome of myasthenia gravis, nonthymic malignant tumors, and/or polymyositis occurs in a significant number of dogs with thymoma. Clinical signs are variable and are related to a space-occupying cranial mediastinal mass and/or manifestations of the paraneo-plastic syndrome. Dyspnea is the most common presenting clinical sign. Thoracic radiographs usually show a cranial mediastinal mass. Lymphoma is the main differential diagnosis. A definitive diagnosis may be made by closed biopsy but is more likely to be confirmed by thoracotomy. Thymomas may be completely contained within the thymic capsule or may spread by local invasion or metastasis. A staging system allows for an accurate prognosis and a therapeutic plan. Surgical removal of encapsulated thymomas may result in long-term survival or cure. Invasive or metastatic thymomas carry a guarded prognosis. Manifestations of the paraneoplastic syndrome complicate treatment. Adjuvant radiation and chemotherapy may be of value for advanced cases; however, adequate clinical trials have not been done in the dog.     

Canine distichiasis

The incidence, breed incidence and age incidence of distichiasis are reported in a series of fifty–eight dogs. The detailed findings of eyelid examination conducted by operating microscope are recorded. The technique of epilation by electrolysis is discussed and certain details of the procedure described. The features described in these cases emphasise the difficulties that are encountered in the successful treatment of distichiasis in the dog and give a reasonable explanation for some of these problems. Résumé. On rapporte l'incidence, l'incidence de race et l'incidence d'ǎge de distichiase dans une série de cinquante-huit chiens. On enregistre les découvertes détaillées d'un examen de la paupière au microscope à opérations opthalmologiques. On discute de la technique d'épilation par électrolyse et on décrit certains détails du procédé. Les particularités décrites dans ces cas soulignent les difficultés que l'on rencontre dans le traitement réussi de la distichiase chez le chien et donnent une explication raisonnable pour certains de ces problèmes. Zusammenfassung. Der Vorfall, Zuchtvorfall und Altersvorfall von Distichiasis wird in einer Gruppe von 58 Hunden Berichtet. Die in Einzelheit gehehden Befunde von Augenlid Untersuch-ung durch Augenoperationsmikroskop augefùhrt, wurden berichtet. Die Technik von Epilation durch Electrolyse wird diskutiert und gewisse Einzelheiten des Vorgehens sind beschrieben. Die Unterscheidungsmerkmale in diesen beschriebenen Fàllen betonen die Schwierigkeiten auf die man stǒsst in der erfolgreichen Behandlung von Distichiasis in Hunden und geben eine ziemliche Erklǎrung fur einige von diesen Problemen.     

常见的犬的人畜共患病

世界上人畜共患病种类很多,常听说的“大名鼎鼎”的如:口蹄疫、狂犬病、鼠疫、猪链球菌病、禽流感、非典(SARS)、疯牛病等。近年来,由犬猫引起的人畜共患病也呈上升趋势,犬猫的人畜共患病也要引起人们的警惕,它直接关系到人们的身体健康。