Dhakal HR. Comparative Study of Feeding Different Levels of Black Cumin (Nigella sativa) on Growth Performance of COBB-500 Broilers: Comparative Study of Feeding Different Levels of Black Cumin (Nigella sativa) on Growth Performance of COBB-500 Broilers. AEXTJ [Internet]. 2019 Jun. 11 [cited 2024 May 2];3(2). Available from: http://www.aextj.com/index.php/aextj/article/view/152