U. K. PURANIK, V. P. SINGH, R. K. NEMA, and D. P. TIWARI, “Energetic efficiency and energy requirements during first stage of lactation in crossbred cows”, Indian J of Anim Sci, vol. 67, no. 2, Oct. 2013, Accessed: Oct. 24, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAnS/article/view/34221