Lead intoxication in cattle: A case report
作者:
A. J. Baars,
H. Van Beek,
I. J. R. Visser,
G. Vos,
W. Van Delft,
G. Fennema,
G. W. Lieben,
K. Lautenbag,
J. H. M. Nieuwenhijs,
P. A. De Lezenne Coulander,
F. H. Pluimers,
G. Van De Haar,
T.J. Jorna,
L. G. M. Th. Tuinstra,
P. Zandstra,
B.Bruins Jzn,
期刊:
Food Additives & Contaminants
(Taylor Available online 1992)
卷期:
Volume 9,
issue 4
页码: 357-364
ISSN:0265-203X
年代: 1992
DOI:10.1080/02652039209374082
出版商: Taylor & Francis Group
关键词: cattle;feed;lead;liver;kidney
数据来源: Taylor
摘要:
During the autumn of 1989 a feed contamination induced a widespread lead intoxication of cattle in the northern provinces of The Netherlands (Groningen and Friesland). Over 300 farms were involved, affecting about 15 500 animals (mostly dairy cattle). For a period of one to four weeks these animals took up a thousand kg of lead. This resulted in lead levels in milk, livers, and kidneys above the regulatory safety limits. Due to the chelating therapy, which was rapidly applied by the local veterinarians, only about 30 animals died of an acute lead intoxication. A joint action of the governmental and private authorities prevented exposure of consumers to lead‐contaminated animal products. Based on observations, measurements and literature data, predictions were made of the lead levels to be expected in animal products and the time needed for depletion of these levels. The appropriate animals were ear‐tagged to ensure their identification, and the decline in time of the lead levels in milk and offals was conscientiously monitored. In the second week of 1990 the lead concentrations were decreased to levels well below the regulatory limits, and hence the tags were removed. The present paper reports our observations and conclusions, especially regarding treatment, predictions and outcome of this incident.
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