Pathological studies on systemic mycoses in calves.

Systemic mycoses were found in 19 (4.7%) of 406 calves less than 6 months old which were autopsied during the past 10 years. Alimentary mycosis occurred in 12 (63.2%) of 19 cases. In alimentary mycosis, mucormycosis showed the highest rate of occurrence (91.7%, 11/12 calves) followed by aspergillosis 41.7% and candidiasis was 9.3%. Mucormycosis and aspergillosis were characterized by focal hemorrhagic necroses with hyphal proliferation and thrombi in the mucosa and muscular layers of the forestomach, abomasum, and small intestine. Candidiasis was characterized by hyperkeratosis with pseudohyphae and microconidia in the mucosa of the omasum. Four of 12 calves (33.3%) had mixed infections of the alimentary tract consisting of Mucorales and Aspergillus species. Pulmonary aspergillosis was found in 10 (52.6%) of 19 calves. There were micro-abscesses with hyphal proliferation or asteroid bodies in the lungs. Infections involving both the alimentary tract and respiratory organs were noted in 3 (10.5%) of 19 calves. Disseminated mycosis was found only in one calf. In alimentary mycosis, administration of antibiotics for the treatment of diarrhea and early weaning were thought to be an important predisposing factor.

[1]  K. Matsukawa,et al.  Ruminant Forestomach and Abomasal Mucormycosis under Rumen Acidosis , 1988, Veterinary pathology.

[2]  Y. Hatta,et al.  Disseminated aspergillosis with lesions in the central nervous system in a calf. , 1988, Nihon juigaku zasshi. The Japanese journal of veterinary science.

[3]  H. Taniyama,et al.  Pulmonary Aspergillosis in Apparently Healthy Young Rabbits , 1985, Veterinary pathology.

[4]  S E Sanford,et al.  Gastric zygomycosis (mucormycosis) in 4 suckling pigs. , 1985, Journal of the American Veterinary Medical Association.

[5]  N. Azumi,et al.  DISSEMINATED FUNGAL INFECTION A Review of 20 Autopsy Cases , 1984, Acta pathologica japonica.

[6]  G. Bulmer.  Introduction to Medical Mycology , 1979 .

[7]  L. L. Smith,et al.  Phycomycotic meningoencephalitis in a neonatal calf. , 1978, The Canadian veterinary journal = La revue veterinaire canadienne.

[8]  K. Ohshima,et al.  Pathological studies on mucormycosis of the forestomach and abomasum in ruminants: a report on six cases complicated with candidiasis or pulmonary aspergillosis. , 1976, Nihon juigaku zasshi. The Japanese journal of veterinary science.

[9]  J P Neitzke,et al.  Incidence of mycotic gastritis in calves up to 30 days of age. , 1974, The Canadian veterinary journal = La revue veterinaire canadienne.

[10]  W. Knudtson,et al.  Bovine cerebral mucormycosis: report of a case. , 1973, Sabouraudia.

[11]  C. Dawson,et al.  Alimentary mycotic lesions in cattle: a histological and cultural study. , 1973, Journal of medical microbiology.

[12]  Symmers Ws.  Histopathology of phycomycoses. , 1972 .

[13]  N. Kodama,et al.  A Histopathological Study on Systemic Mycosis in a Calf , 1972 .

[14]  S. Tamura,et al.  A Case Report on Mycosis in a Calf , 1972 .

[15]  Jones Je,et al.  Candida albicans infection of the forestomachs of a calf. , 1970 .

[16]  R. M. Griffin.  Pulmonary Aspergillosis in the calf , 1969, Veterinary Record.

[17]  P. Marcato.  Ruminite mucormicotica nel vitello , 1969 .

[18]  J. Smith.  Mycoses of the alimentary tract of animals. , 1968, New Zealand veterinary journal.

[19]  Shortridge Eh,et al.  Systemic phycomycosis and aspergillosis of cattle. , 1968 .

[20]  K. Maddy.  Epidemiology and ecology of deep mycoses of man and animals. , 1967, Archives of dermatology.

[21]  Thomson Rg.  Rumenitis in cattle. , 1967 .

[22]  D. Cordes,et al.  Systemic mycosis in neonatal calves. , 1967, New Zealand veterinary journal.

[23]  J. Mills,et al.  Systemic candidiasis in calves on prolonged antibiotic therapy. , 1967, Journal of the American Veterinary Medical Association.

[24]  B. Hogben.  Systemic mycotic lesions in apparently normal bobby calves: incidence and appearance. , 1967, New Zealand veterinary journal.

[25]  Symmers Wc.  Histopathologic aspects of the pathogenesis of some opportunistic fungal infections, as exemplified in the pathology of aspergillosis and the phycomycetoses. , 1962 .

[26]  P. Austwick.  The presence of aspergillus fumigatus in the lungs of dairy cows. , 1962, Laboratory investigation; a journal of technical methods and pathology.

[27]  M. Eggert,et al.  Pulmonary aspergillosis in a calf. , 1960, Journal of the American Veterinary Medical Association.

[28]  R. L. Lundvall,et al.  Persistent diarrhea in colts associated with infection with Aspergillus fumigatus. , 1960, Journal of the American Veterinary Medical Association.

[29]  P. Neame,et al.  Mucormycosis. A report on twenty-two cases. , 1960, Archives of pathology.

[30]  M. Littman.  The systemic mycoses. , 1959, The American journal of medicine.

[31]  P. Austwick,et al.  Muconnycosis and moniliasis in a litter of sucking Pigs. , 1959 .

[32]  R. D. Baker,et al.  Mucormycosis of the digestive tract. , 1957, A.M.A. archives of pathology.

[33]  P. Austwick,et al.  The presence of fungi in abomasal ulcers of young calves. A report of seven cases. , 1957 .

[34]  Saunders Lz.  Systemic fungous infections in animals; a review. , 1948 .