@article{MAKHILLJAVA200874582, title = {In vitroEvaluation of Three Sources of non Protein Nitrogen for Prolonged Release in the Rumen}, journal = {Journal of Animal and Veterinary Advances}, volume = {7}, number = {4}, pages = {377-380}, year = {2008}, issn = {1680-5593}, doi = {javaa.2008.377.380}, url = {https://makhillpublications.co/view-article.php?issn=1680-5593&doi=javaa.2008.377.380}, author = {V. Rodriguez-Guerrero,L.M. Melgoza,F. Plata,G. Buendia and}, keywords = {Non protein nitrogen sources,urea,ammonium phosphate monobasic,ammonium phosphate dibasic,press-coated tablets,modified release,ruminants}, abstract = {The objective of this study was the development and the evaluation of press-coated tablets for the modified release of nonprotein nitrogen in the rumen based on: urea, ammonium phosphate monobasic and ammonium phosphate dibasic, in order to be used as a protein supplement in ruminants. The release profiles, showed that tablets with urea had a better control of release although were faster than the other sources. The 80% of total urea was released in 31 h whereas, ammonium phosphate monobasic and dibasic released only 27% at the same time in the dissolutor with distilled water. Testing the press-coated tablets with ruminal fluid presented similar performance, with a half time of release of 26.45 h urea, 41.25 h ammonium phosphate monobasic and 25.02 ammonium phosphate dibasic. The press-coated tablets are potential technology to provide nonprotein nitrogen for prolonged time to ruminal microbes and the ruminant.} }