NANDI S, SURESH KP, MONDAL S. Ammonia and urea levels in blood and ovarian follicular fluid in cattle fed with normal and protein rich or imbalanced diet: A meta-analysis. Indian J of Anim Sci. 2013;83(5). Accessed October 29, 2025. https://epubs.icar.org.in/index.php/IJAnS/article/view/29761