SINGH J, GHUMAN SPS, HONPARKHE M, DADARWAL D. Risk factors for prolonged estrus in crossbred dairy cattle. Indian J of Anim Sci [Internet]. 2012 Jan. 2 [cited 2026 Jun. 3];82(1). Available from: https://epubs.icar.org.in/index.php/IJAnS/article/view/13828