Bs. Yadav et As. Virk, EFFECT OF ACID TREATMENT IN REDUCING AMMONIA LOSS DURING UREA AMMONIATION OF STRAW, Indian Journal of Animal Sciences, 64(7), 1994, pp. 762-766
Varying fixation (F) levels (10, 20, 30 and 40%) of sulphuric and hydr
ochloric acids were tried in week 4 of ammoniation of gram straw with
2 weeks of further incubation using 4.0 (U1) and 7.5% (U2) urea at 46.
19-49.59% moisture to minimize the loss of ammonia in polythene bags i
n the laboratory. Total protein and ammonia nitrogen improved signific
antly (P<0.01) with increased urea and fixation levels. Cell-wall frac
tions and crude fibre degradation increased significantly (P<0.01) at
higher urea and fixation levels. The addition of acid equivalent to 40
% fixation significantly lowered NDF from 62.13% in control to 55.83%
at F4. Treatment of gram straw with 7.5% urea at 46.19% moisture for 6
weeks at 40% fixation level of acid could significantly (P<0.01) chec
k the loss of ammonia and enhance the CP content to 18.00%.