Systemic granulomatous and haemorrhagic syndrome in New Zealand dairy cattle

Rawdon, T G; Buckle, Kelly; Lawrence, K.E.; Thompson, K. G.; Julian, A. F.; Vaatstra, B L; Johnstone, A.C.; Weston, J F; Fairley, R A

doi:10.1080/00480169.2017.1281773

Cited by 2 publications

(8 citation statements)

References 18 publications

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“…Most of the pathological findings were consistent with previous reports (1,2,5,9,11,14,15). However, no hemorrhagic syndrome was evident in the euthanised cow, as it was previously described by other authors (8,14,15).…”

Section: Discussionsupporting

confidence: 91%

“…Clinical course and some clinical signs described herein were consistent with previous reports (1,3,14). However, jaundice, melena, hematuria and pale mucous membranes were not observed in this case, unlike other reports (9,14).…”

Section: Discussionsupporting

confidence: 91%

“…This work describes a systemic granulomatous disease in livestock from Argentina for the first time. The clinical-pathological and epidemiological findings similar to previous reports (5,10,11,16) and the lack of response to the treatment (2,10,14), support this diagnosis.…”

Section: Discussionsupporting

confidence: 87%

“…Epidemiological rates and the most frequently affected categories were coincident with previous reports (2,9,14,17,18).…”

Section: Discussionsupporting

confidence: 86%

“…However, jaundice, melena, hematuria and pale mucous membranes were not observed in this case, unlike other reports (9,14). One of the surviving cows aborted a 6month-old fetus as it has been previously reported (5,14,17). It has been speculated that abortion might be due to the systemic inflammatory reaction (5).…”

Section: Discussioncontrasting

confidence: 37%

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Systemic granulomatous disease in dairy cattle from Argentina

Odriozola¹,

Dorsch²,

Caffarena³

et al. 2019

BJVP

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An outbreak of systemic granulomatous disease of unknown etiology was diagnosed in a dairy herd from Argentina. Eleven out of 211 cows manifested hyperthermia, depression, alopecia, pruritus, decreased milk production and death in most cases. During necropsy, multifocal petechial hemorrhages in glottis and vulva, white multifocal nodules in the liver and splenomegaly with subcapsular petechial hemorrhages were observed. Both kidneys were diffuse pale and enlarged. Systemic granulomatous hepatitis, myocarditis, pancreatitis and nephritis were observed. Water and food samples tested negative for Arsenic and T2 toxin, respectively. Fusarium equiseti was isolated from alfalfa hay samples. Vicia spp. was not consumed by the affected herd and no other cause of vetch-like disease was registered. Other causes of granulomatous lesions (Mycobacterium spp. and fungal infections) were discarded. The systemic granulomatous disease was suggestive of a type IV hypersensitivity reaction. Although the sensitizing agent was not determined, two components of the ration were suspected: cotton seed and bone ash. Both of them were introduced one month prior to the detection of the first affected cow and the disease resolved since they were removed from the diet.

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