PURANIK UK, SINGH VP, NEMA RK, TIWARI DP. Energetic efficiency and energy requirements during first stage of lactation in crossbred cows. Indian J of Anim Sci [Internet]. 2013 Oct. 23 [cited 2025 Oct. 24];67(2). Available from: https://epubs.icar.org.in/index.php/IJAnS/article/view/34221