Poor or average quality hay has been found incapable of meeting the carotene and roughage requirements of the young dairy calf raised under a limited-whole milk and dry calf-starter system of feeding Since hay of required quality has not been generally produced in the northeastern states (2, 20), primarily because of weather conditions (19), the development of a system of feeding to insure adequate carotene and roughage intake is needed.
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Dolge et al. (1952) studied this question.
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