Gupta, D.K., Shukla, S.K. and Rajora, V.S. (2005) “Efficacy of colostral immunoglobulins against colibacillosis in colostrum deprived calves”, The Indian Journal of Animal Sciences, 75(11). Available at: https://epubs.icar.org.in/index.php/IJAnS/article/view/8250 (Accessed: 23 October 2025).