_____________________________________________________________________________________________________ *Corresponding author: Email: otadebayo@futa.edu.ng; Asian Journal of Fisheries and Aquatic Research 3(3): 1-13, 2019; Article no.AJFAR.49928 Efficacy of Aloe vera Gel and Water-leaf Extracts for Removal of Egg Adhesiveness during Artificial Propagation of African Catfish (Clarias gariepinus, Burchel 1822) S. J. Fawehinmi 1 , O. T. Adebayo 1* and O. K. Gbadamosi 1 1 Department of Fisheries and Aquaculture, Federal University of Technology, Akure, Ondo State, Nigeria. Authors’ contributions This work was carried out in collaboration among all authors. Author SJF designed the study, managed the literature searches and wrote the first draft of the manuscript. Author OTA wrote the protocol. Author OKG performed the statistical analysis and managed the analyses of the study. All authors read and approved the final manuscript. Article Information DOI: 10.9734/AJFAR/2019/v3i330037 Editor(s): (1) Dr. Vijai Krishna Das, Former Professor, Department of Zoology, Kamla Nehru Institute of Physical and Social Sciences, Sultanpur, Uttar Pradesh, India. Reviewers: (1) Ali Türker Mugla, Sitki Kocman University, Turkey. (2) Mahmoud Abdelhamid Dawood, Kafrelsheikh University, Egypt. (3) Tiogué Tekounegning, The University of Dschang, Cameroon. Complete Peer review History: http://www.sdiarticle3.com/review-history/49928 Received 28 April 2019 Accepted 05 July 2019 Published 11 July 2019 ABSTRACT The paper aims to study the best immersion period and concentration of the plant extracts under study (water-leaf and Aloe vera gel) that can efficiently remove egg adhesiveness of Clarias gariepinus. Data generated were subjected to Multivariate Analysis of Variance Test, Tukey multiple range tests was used as a follow up procedure. Third order Polynomial regression analysis was then used to determine the best concentration and immersion period that neutralizes adhesiveness in eggs of C. gariepinus. The experiment was carried out at The Teaching and Research Fish Farm, Federal University of Technology, Akure, between October 2018 to December 2018. One male and one female C. gariepinus brood stock weighing 1.0 kg and 1.3 kg, respectively were used for the experiment. Three different concentrations (1, 3, and 5)% of the plant extracts were used. 2 g of urea diluted in 4 g NaCl/L of water was used as reference de- Original Research Article