Abstract:Three experiments have been carried out with altogether 16 Ayrshire calves in order to determine the digestibility of timothy hay cured at the early flowering stage and containing some red clover. The ages of the calves varied from 2 ½ to 9 months. Hay was given either totally or almost ad lib. Lignin was used as tracer. In experiment 1 the ages of the six experimental calves varied from 3 to 9 months. The calves aged 5—9 months digested hay equally efficiently when com-pared with each other. The youngest calf… Show more
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