National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The present study was carried out to evolve a safe and strategic supplementation to rice gruel by synchronizing nutrient delivery in the rumen for maximum microbial production. Three in vitro trials were conducted to study the rumen fermentation characteristics of non-protein nitrogen (NPN) and sulphur sources supplementation to rice gruel with basal diet (Bajra x Napier grass, CO4). Urea and diammonium phosphate (DAP) were used as NPN sources, while copper sulphate and sodium sulphate were used as sulphur sources. The results indicated that sodium sulphate was the choice of sulphur source and pH and ammonia concentration were not alarming enough to produce toxicity. Both urea and DAP supplementation produced beneficial effect by significantly (P<0.05) increasing the microbial biomass production and apparent dry matter digestibility. The results were validated in semi-continuous culture (RUSITEC) system. The results of the study clearly demonstrated that the pH was in the range, that were neither low (5.5) to induce acidosis nor high enough (7.4) to convert ammonium ion (NH4+) to free ammonia (NH3) to promote ammonia permeability. The IVDMD (In vitro dry matter digestibility) of the various treatments were not significantly (P>0.05) different from each other and the microbial biomass yield was numerically highest in “basal diet + rice gruel +DAP + sodium sulphate” (28.31 ± 2.06 per cent).
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