 | Abstract 345Effect of formaldehyde treatment of various protein-meals on the solubility, in vitro ammonia release and degradability in the rumen.Gupta,-NK; Gupta,-BN National Dairy Research Inst., Karnal, Haryana 132 001, India. Indian-Journal-of-Animal-Sciences. 1985, 55: 7, 579-585; 15 ref. Mustard, groundnut, sesame and soyabean meals, 500-g samples, were treated for 3-4 days with formaldehyde, 0, 5, 1.0 and 1.5 g/100 g crude protein. Solubility of total nitrogen in artificial saliva, initially 57, 68, 35 and 42%, decreased progressively with increasing HCHO concentration to 8, 4, 9 and 3%, respectively; values for protein and non-protein N also decreased progressively. The disappearance of DM and protein from meals in nylon bags suspended in the rumen similarly decreased; the time for 50% retention of protein was initially 8.3, 5.8, 15.5 and 5.4 h and 22.6, 71.8, 20.8 and 25.6 h, respectively, after treatment with 1.5% HCHO. The latter treatment seemed to give maximum protein protection. Treatment with HCHO also decreased release of ammonia in vitro. This abstract relates to the following species:
|