D. K. Gupta, S. K. Shukla, and V. S. Rajora, “Efficacy of colostral immunoglobulins against colibacillosis in colostrum deprived calves”, Indian J of Anim Sci, vol. 75, no. 11, Nov. 2005, Accessed: Oct. 23, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAnS/article/view/8250