Show Shell for Layers In some B. B 0 O. tests it has bas been shown that oyster shell Is superior to either clam shell or limestone for feeding as shell forming materials to laying hens The B B. B C. C depart depart- department rt- rt ment went of ot agriculture advises the use of clam slum shell which is cheaper chener and und anda a local product The bulk of the oyster shell used se In B. B C. C Is from the United States The conclusion would be drawn from tests that the kind of shell used has n a marked Influence on on egg Nor production l production West Farmer |