Abstract
PREVIOUS experiments undertaken at this Station have established the value of calcium carbonate as a source of calcium in the diet of growing chicks (1929) and laying hens (1928), also (1923) that highgrade limestone and oyster shell gave practically the same results, as indicated by the growth of chicks and the eggs produced by hens. Halpin and Hayes (1925) reported greater egg production with oyster shell than with limestone which contained a relatively high percentage of magnesium.In our early experiments we found the limestones used as mineral supplements in our chicken experiment contained from 1 to 30 per cent of magnesium carbonate and that the best results were obtained when the percentage of magnesium carbonate in the limestone was small.Hart and his co-workers (1930) have confirmed the work of Bethke and his associates (1929) in showing that when the calcium content of a ration fed to growing chicks .
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
