Effect of Metabolic Disorders on Rumen pH

Effect of Metabolic Disorders on Rumen pH The effect of metabolic disorders on rumen pH and production performance of Holstein dairy cows Ondrej HanuÃ… ¡ovskà ½1, Daniel Bà ­ro1, Milan Ã…  imko1, Branislav Gà ¡lik1, Miroslav Jurà ¡Ãƒâ€žÃ‚ ek1, Michal Rolinec1 Abstract The main goal of this research was to evaluate the health condition of dairy cows in relationship with milk production and milk composition using continuous monitoring boluses in cooperation with University Experimental farm in Oponice. Totally, 7 Holstein cows had implemented bolus for monitoring rumen pH and temperature every 15 minutes with accuracy  ± 0.1 pH and  °C. Milk production test-day records by Breeding Services of Slovakia, s. e. 5 times per each cow with bolus during 27 weeks of lactation were realised. Dairy cows were divided into three groups (NORMAL, SARA, KETOSIS) according to average daily pH. After that test-day records with the selected group were paired.   In the NORMAL group in comparison with the SARA group statistically significant higher pH by 9.81% (p