“Comparative Study of Oestrus Responses in Unsynchronized Jennies and Jennies ® Synchronized With Single Treatment of PGF2á (lutalyse ) in Zaria, Nigeria”. Nigerian Journal of Animal Production 47, no. 4 (December 17, 2020): 32–36. Accessed November 5, 2026. https://www.njap.org.ng/index.php/njap/article/view/85.