Vol. 10, Special Issue 12 (2021)

Author(s):
N Muthusamy, C Kathirvelan, T Hariharan and N Akila

Abstract:
The study was conducted with 36 crossbred lactating cows to compare the effects of sodium bicarbonate and yeast bolus and their combination on milk yield and milk composition. 3 small dairy farms were selected and experiment design of this study was Complete Randomized block Design. Each farms grouped into four, Each group consist of 3 animals. All the animals are in early lactation stage with same feeding schedule. The experimental animals were divided into four treatments. Control, Sodium bicarbonate, Yeast culture bolus and combination of sodium bicarbonate and live yeast culture bolus. The dose of sodium bicarbonate and yeast culture bolus used in this study was 50 g/day/animal and 2 bolus/day/animal. The trial was conducted for 30 days with 10 days for pretrial period and last twenty days milk yield, milk fat and Solid Not fat were recorded. Data was analyzed statistically. In this study, dairy cow supplemented Sodium bicarbonate, Yeast culture bolus and combination of sodium bicarbonate and yeast culture bolus were shown significant (P<0.01) increase in milk yield and milk fat percentage compared with control. However, Solid Not Fat percentage of milk was not significantly increased in Sodium bicarbonate, combination of sodium bicarbonate and live yeast culture bolus and yeast culture bolus against control.