Comparation of moist heating and formaldehyde protein protection methods and their impact on dairy ration fermentability and digestibility

Abstract Improving protein efficiency has become the main target in dairy farming. The feeding strategy for high-producing cows is directed by optimizing non-protein nitrogen utilization while maintaining post-ruminal digested bypass protein. Soybean and soybean meal are sources with high biological value but highly degradable, so they must be protected. This study aimed to compare effect of moist heating formaldehyde treatments as a method protecting increase rumen Parameters observed include fermentation profile (rumen pH, NH 3 , total VFA, protozoa, bacteria population) nutrient digestibility. Treatments tested were an unprotected diet control (C1), protected (C2), (C3). Data subjected ANOVA using Randomized Block Design followed orthogonal contrasts. results showed that both (C2 C3) reduced VFA concentration (p<0.05) without affecting count (p>0.05). Dry matter organic did not affect treatments. In conclusion, methods could used protect feed improve ration.