Pathak R, Jaiswal RS, Thakur TC, Joshi YP, Pandey H. Effect of feeding ammonia (urea) treated baled wheat straw with different levels of concentrate on nutrients utilization and growth of crossbred heifers. Indian J of Anim Sci. 2005;75(8). Accessed October 23, 2025. https://epubs.icar.org.in/index.php/IJAnS/article/view/9444