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Extension > Agriculture > Dairy Extension > Feed and Nutrition > Feeding the dairy herd > Table 1

Feeding the dairy herd

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TABLE 1. PERCENTAGE RELATIONSHIP OF A CALF'S STOMACH COMPARTMENTS WITH INCREASING AGE
Age (weeks)
Stomach compartment 0 4 8 12 16 20-26 34-38

% of total weight
Rumen-reticulum 38 52 60 64 67 64 64
Omasum 13 12 13 14 18 22 25
Abomasum 49 36 27 22 15 14 11

Source: Warner and Flatt. 1965. In R.W. Dougherty, ed. Physiology of Digestion in the Ruminant.

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