Abdul Qadeer, Muhammad Avais, Abdul Wajid, Muhammad Zahid Iqbal, Hanif Ullah, Asad Khan, Sajid Ur Rahman, Aqeel Javeed and Sher Zaman Safi, 2025. Evaluation of In-Vitro and In-Vivo Efficacy of Hedera helix Extracts against Haemonchus contortus in Sheep. Pakistan J. Zool., 57: 509-515. DOI: https://dx.doi.org/10.17582/journal.pjz/20230220020230