Egg shell thickness. After two to four months of feeding DDT in a 3.5% calcium diet, egg shells from second year hens were significantly thinner than controls, but shells from pullets fed DDT were significantly thicker than control eggs. DDT had no effect on egg shell thickness of birds fed the low calcium diets.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.