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CHRONIC COPPER POISONING IN DAIRY COWS
Author(s) -
Stogdale Lea
Publication year - 1978
Publication title -
australian veterinary journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.382
H-Index - 59
eISSN - 1751-0813
pISSN - 0005-0423
DOI - 10.1111/j.1751-0813.1978.tb05530.x
Subject(s) - anorexia , jaundice , herd , zoology , medicine , copper , autopsy , copper deficiency , gastroenterology , veterinary medicine , biology , chemistry , organic chemistry
SUMMARY Chronic copper poisoning in a dairy herd fed supplementary copper is recorded. Most cows received 11 g of copper sulphate per day but high milk producers received 22,0 g and within 6 months, 3 of them became ill and died. The signs shown by the 3 cows were anorexia, decreased milk production, frequent recumbency and jaundice. Within 4 days of showing signs, the cows died. The autopsy findings were dehydration, anaemia, jaundice, liver damage and intestinal haemorrhage. Liver copper values varied from 1,250 to 2,410 ppm DM.