BONIA k K, GOSWAMI J. Serum 17β- oestradiol, progesterone and cortisol level during biological stress period of normal and sub-oestrous cycles of crossbred cattle of Asom. Indian J of Anim Sci [Internet]. 2011 Jul. 11 [cited 2025 May 21];81(7). Available from: https://epubs.icar.org.in/index.php/IJAnS/article/view/7716