Jain, Khushboo. “Effect of Micro-Nutrients Supplementation and Seasonal Variability on Production Performance, Antioxidants and Immune Status in Crossbred Heifers”. Indian Journal of Animal Nutrition, vol. 38, no. 2, Dec. 2021, http://epubs.icar.org.in/index.php/IJAN/article/view/118893.