A. KUMAR, D. N. KAMRA, N. AGARWAL, and L. C. CHAUDHARY, “Impact of feeding essential oils on feed fermentation and rumen microbial profile in crossbred cattle calves”, Indian J of Anim Sci, vol. 87, no. 5, pp. 604–609, May 2017, doi: 10.56093/ijans.v87i5.70247.