DIGESTIBILITY TRIALS ON INDIAN FEEDING STUFFS                   147

This addition converted the negative daily nitrogen balances of the heifers
Nos. 122, 128 and 133 to positive 4.76, 4.65 and 6.55 grammes respectively and the
upward tendency of the body weight curves shows that the animals also improved
in their body weights.

These figures show that 2 lbs. of bran have effected a daily addition of 14.19,
12.34 and 14.53 grammes of nitrogen in case of heifers Nos. 122, 128 and 133
respectively, or 7.10, 6.17 and 7.27 grammes of nitrogen per lb. of bran added.
The average of the above figures shows that 1 lb. of added bran can repair a
nitrogen deficiency to the extent of 6.85 grammes with wheat-bhusa fed ad-lib to
the animals of the given description.

On the basis of the above calculations, in order to effect a maintenance ration,
from a nitrogen equilibrium point of view, the heifers, 122, 128 and 133 should have
been given 1.3, 1.2 and 1.1 lbs. of added wheat bran respectively in addition to the
wheat- bhusa fed ab-lib. Heifers weighing from 350 to 450 lbs. should thus require
for their maintenance from 1 to 1.5 lbs. of added bran when fed on bhusa alone, as
a roughage.

The following Table gives the analytical and digestibility coefficient figures of
wheat-bhusa obtained from trials at Lyallpur in the years, 1921, 1922 and 1929:—

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