1 Title: Proximate composition of underutilized, economically-viable feed ingredients for sustainable aquaculture Name: Dr. Shabihul Fatma Assistant Professor (Medical Biology) Faculty of Science and Arts in Farasan Jazan University Kingdom of Saudi Arabia E:mail:ftm77@rediffmail.com This study presents the nutritive potential of selected fish feed ingredients to augment the fish culture and production through aquaculture. The present study surveyed selected potential feedstuffs with specific focus on underutilized plant and animal protein sources, agricultural, animal, agro-industrial by-products, slaughterhouse wastes and some unusual by-products. The ingredients were collected from the local markets and abattoirs of the survey area. Selection of the feedstuffs was based on availability, cost and the avoidance of conflicts with human consumption. Proximate analysis was conducted for 50 selected feedstuffs from 14 underutilized animal protein sources and 36 plant feedstuffs to estimate their potential nutritive value for inclusion as feedstuff for aquaculture. Based on the proximate composition, 14 feedstuffs of animal origin were identified as potential dietary protein sources with highest crude protein (CP) and almost low to negligible amount of crude fibre (CF) and nitrogen-free extract (NFE), 13 feedstuffs with high CP and high NFE were identified as dietary protein and energy source and 23 feedstuffs with low CP and highest NFE were identified as potential dietary energy sources. Key words: Proximate analysis, by-products, fish feeds, sustainable aquaculture, nutrients, protein and energy sources Biography I have completed Ph.D in 2009 and Post-Doctorate (UGC-Dr. D.S. Kothari Post Doctorate Fellowship) in 2013 from Aligarh Muslim University, India. I am presently working as an Assistant Professor and involved in teaching Medical Biology and Biochemistry at Undergraduate level. I have published more than 25 research papers in the journals of international repute such as Aquaculture Research (Wiley-Blackwell), Aquaculture Nutrition (Wiley-Blackwell), Aquaculture (Elsevier Press), Aquaculture International (Springer Press). I have actively participated in various National and the International conferences and have given the oral presentation of my accepted research papers. I am also serving as a reviewer for the Aquaculture research, Aquaculture International, Journal of Applied Aquaculture (Taylor & Francis), Israeli Journal of Aquaculture-Bamidgeh etc. 2 Presenting author’s details Full name: Dr. Shabihul Fatma Contact number: 053804727 Twitter account: NA Linked In account: NA Session name/ number: Sustainable Aquaculture Category: (Oral presentation)