Verma, Uma Kant, Ajeet Singh, Nadeem Shah, Hanuman Prasad Yadav, Ashish Kumar Ghosh, and Sunil Kumar. 2018. “Colostrum- Immunomodulator and Health Promoter for Dairy Calves”. International Journal of Livestock Research 8 (7). India:14-20. https://ijlr.org/ojs_journal/index.php/ijlr/article/view/1685.