AHMED A, TIWARI RP, MISHRA GK. Bio-stimulatory effects of bull urine (BU), PRID and GnRH on estrus induction and ovarian activity in pubertal anestrus Sahiwal heifers. Indian J of Anim Sci [Internet]. 2016 Jun. 16 [cited 2025 Oct. 23];86(6):643–647. Available from: https://epubs.icar.org.in/index.php/IJAnS/article/view/59158