Infuence of dietary calcium, selenium, and methylmercury on eggshell thickness in Japanese quail
- 1 July 1978
- journal article
- research article
- Published by Springer Nature in Bulletin of Environmental Contamination and Toxicology
- Vol. 20 (1) , 135-142
- https://doi.org/10.1007/bf01683497
Abstract
Summary A high Ca, semi-purified diet promoted greater egg production with thicker shells in Japanese quail hens. 7 ppm of dietary Se depressed egg weights with no effect on eggshell thickness. The addition of 20 ppm of MHg to either a low or high Ca diet containing Se depressed both egg production and eggshell thickness. Se residues of liver, kidney, and brain in Se-MHg fed quail were significantly higher than in Se treated quail, probably reflecting the ability of Se to bind with Hg. CA, an enzyme required for the formation of the carbonate radical of Ca carbonate in egg-shells, was not reduced in the Se-MHg treated Japanese quail hens′ blood or oviducts.Keywords
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