J. Anim Sci.
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J. Anim Sci. 1967. 26:67-71.
© 1967 American Society of Animal Science
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Calcium Requirement Of Growing Rabbits

Roy E. Chapin1 and S. E. Smith

Cornell University, Ithaca, New York

Abstract

One hundred thirty-four rabbits were studied in a series of experiments to determine the minimum calcium requirement for growing New Zealand White rabbits. Dietary phosphorus levels were 0.37 to 0.39% of the air-dry diet.

Rabbits required approximately 0.22% calcium in the diet for maximum rate and efficiency of gain. Dietary calcium levels of 0.35 to 0.4% were required for maximal bone calcification.

In contrast to many species, the blood calcium level of rabbits readily reflects dietary intake. Values as high as 25 to 30 mg./lOO ml. of plasma were observed in rabbits fed diets containing high calcium levels (4.5% of the diet).

The symptoms of calcium deficiency and changes in serial blood calcium and inorganic phosphorus concentrations resulting from feeding a low-calcium (0.07%) diet are presented.

Footnotes

1 Present address: Elliott Feed and Seed Co., Perrydale, Oregon.






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Copyright © 1967 by the American Society of Animal Science.