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PCB's and p,p'DDE in the blood of cachectic patients

Bulletin of Environmental Contamination and Toxicology

Out-of-print
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Abstract

The pheasant, in its North American range, seems to have had its greatest success in glaciated or in other areas associated with calcareous soils. Success has been slight in areas deficient in calcium.....In Lancaster County, Pennsylvania, no environmental difference other than presence or absence of limestone was discovered that might explain the high population in the limestone valley and the scarcity of pheasants in the non-calcareous Piedmont area....Pheasants at the Patuxent Refuge, when given limestone grit, reproduced successfully on a diet roughly comparable to the natural pheasant diet but failed to reproduce adequately on such a diet when granite grit, instead of limestone, was supplied.....A supplement of powdered calcium carbonate in the diet was adequate t,o permit production of eggs by birds on the granite grit.....Birds receiving granite grit had apparently normal eggs in the ovary but failed to ovulate more than a very few eggs. The precise role of calciun~i n permitting ovulation was not investigated.....It is concluded that calcium, which is low in the natural pheasant diet, must be supplemented in some way to permit pheasants to reproduce. Scarcity of this element in non-calcareous areas may well explain the failure of the pheasant in many parts of North America.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
PCB's and p,p'DDE in the blood of cachectic patients
Series title:
Bulletin of Environmental Contamination and Toxicology
Volume
11
Issue:
3
Year Published:
1974
Language:
English
Contributing office(s):
Great Lakes Science Center
Description:
p. 202-205
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Bulletin of Environmental Contamination and Toxicology
First page:
202
Last page:
205
Number of Pages:
3