Ruminal acidosis is a condition that follows ingestion of excessive amounts of readily fermented carbohydrate, is prominent production problem for ruminants fed diets rich in concentrate. The present study was planned to investigate the prevalence of bovine ruminal acidosis and its impact on haemato-biochemical profile. A total of 265 animals were screened from different areas of Jammu region including the cases that were presented in TVCC, F.V.Sc. & A.H, R.S. Pura. Forty three (43) animals were found positive for acidosis. The overall prevalence of ruminal acidosis including sub-acute form in Jammu region was 16.22%. The prevalence was highest (22.82%) in age group 4-7 years. The highest prevalence in early lactation period was

found to be 21.87%. The incidence of laminitis was found to be 16.27%. There was significant changes in haemato-biochemical parameters were observed in acidotic animals.