This study aimed at investigating the current management practices and status of the use of antimicrobials, disinfectants, and parasiticides in farm-raised fish in northern and eastern zones of Tanzania. Structured and semi-structured interviews were conducted across 130 aquaculture enterprises in both regions. Farmers reported using a total of seven different antimicrobial agents, including those for treating bacterial diseases such as bacillary necrosis of Pangasius (BNP) and motile aeromonad septicaemia (MAS), as well as a variety of disinfectants and parasiticides. Some farm owners and managers neither had advanced degrees nor specialized aquaculture training to manage, diagnose, and treat diseases in aquaculture environments. Tilapia and catfish were the two main fish species raised in both regions, either under concrete or earthen ponds in semi-intensive monoculture systems. To save on overall production costs, the majority of the farmers prepared their fish feed using locally available ingredients. However, they lacked proper knowledge of formulating high-quality fish feed and/or safe pond water management during production; these have a huge impact on overall fish health and consumer safety. For sustainable development of fish farming and good aquaculture management practices (GAMP), there’s a need for the fish farmers to have aquaculture technical training and access to available fish disease diagnosis services in order to ensure the fish farmers can make informed treatment choices, improve aquaculture knowledge and use innovative fish farming approaches.
Farmer’s knowledge on aquaculture management practices and challenges in Tanzania
Adeogun OA, Ogunbadejo HK, Ayinla OA, Oresegun A, Oguntade OR, Tanko A, Williams SB. 2007. Urban aquaculture: Producer perceptions and practices in Lagos State, Nigeria. Middle-East Journal of Scientific Research 2, 21-7.
Adorable-Asis AG, Cauyan GA, Pagulayan RC, Magbanua FS, Papa RD. 2016. The macro-gastropod communities of aquaculture-intensive lakes in the Philippines. Molluscan Research 36, 223-30. https://doi.org/10.1080/13235818.2016.1201016
Aizam NA, Ibrahim RA, Lung RL, Ling PY, Mubarak A. 2018.Mathematical modelling for fish feed formulation of mystus nemurus sp. catfish: Optimizing growth and nutrients requirements. Jurnal Teknologi 80.
Amirkolaie AK. 2008. Environmental impact of nutrient discharged by aquaculture waste water on the Haraz River. Journal of Fisheries and Aquatic Sciences 3, 275-9.
Baleta FN, Bolaños JM, Medrano WC. 2019. Assessment of Tilapia Cage Farming Practices in Relation to the Occurrence of Fish Mortalities along the Fish Cage Belt at Magat Reservoir, Philippines. Journal of Fisheries and Environment 43, 1-3.
Béné C, Arthur R, Norbury H, Allison EH, Beveridge M, Bush S, Campling L, Leschen W, Little D, Squires D, Thilsted SH. 2016. Contribution of fisheries and aquaculture to food security and poverty reduction: assessing the current evidence. World Development 79, 177-96. https://doi.org/10.1016/j.worlddev.2015.11.007
Bhuyain MA, Hossain MI, Haque MA, Jewel MA, Hasan J, Akter S. 2019. Determination of the proximate composition of available fish feed ingredients in Bangladesh. Asian Journal of Agriculture Research 13, 13-9.
Boyd CE. 2017. General relationship between water quality and aquaculture performance in ponds. Fish diseases 147, 166.
Cao L, Wang W, Yang Y, Yang C, Yuan Z, Xiong S, Diana J. 2007. Environmental impact of aquaculture and countermeasures to aquaculture pollution in China. Environmental Science and Pollution Research-International 14, 452-62. https://doi.org/10.1065/espr2007.05.426
Chuah LO, Effarizah ME, Goni AM, Rusul G. 2016. Antibiotic application and emergence of multiple antibiotic resistance (MAR) in global catfish aquaculture. Current environmental health reports 3, 118-27. https://doi.org/10.1007/s40572-016-0091-2
Edet EO, Udoe PO, Uwah ED. 2018. Costs and return analysis of fish farming in Calabar metropolis, Cross River State Nigeria. Global Journal of Agricultural Sciences 17, 23-31. https://doi.org/10.4314/gjass.v17i1.3
Gabriel UU, Akinrotimi OA, Bekibele DO, Onunkwo DN, Anyanwu PE. 2007. Locally produced fish feed: potentials for aquaculture development in subsaharan Africa. African Journal of Agricultural Research 2, 287-95. https://doi.org/10.5897/AJAR.9000470
Hutson SK, Cain KD. 2018. Pathogens and Parasites. Aquaculture: Farming Aquatic Animals and Plants 217.
Kamaruddin R, Baharuddin AH. 2015. The importance of good aquaculture practices in improving fish farmer’s income: A case of Malaysia. International Journal of Social Economics. https://doi.org/ 10.1108/IJSE-02-2014-0028
Mosha SS, Kang’ombe J, Jere W, Madalla N. 2016. Effect of organic and inorganic fertilizers on natural food composition and performance of African catfish (Clarias gariepinus) fry produced under artificial propagation. Journal of Aquaculture Research Development 7, 1-7. https://doi.org/10.1111/j.1365-2109.2006.01569.x
Macêdo LP, Dornelas AS, Vieira MM, de Jesus Ferreira JS, Sarmento RA, Cavallini GS. 2019. Comparative ecotoxicological evaluation of peracetic acid and the active chlorine of calcium hypochlorite: use of Dugesia tigrina as a bioindicator of environmental pollution. Chemosphere 233, 273-81. https://doi.org/10.1016/j.chemosphere.2019.05.286
Mishra SS, Swain P, Das R. 2018. Diseases in Freshwater Aquaculture and their Management. Mass Breeding and Culture Technique of Catfishes 141.
Naylor RL, Goldburg RJ, Primavera JH, Kautsky N, Beveridge MC, Clay J, Folke C, Lubchenco J, Mooney H, Troell M. 2000. Effect of aquaculture on world fish supplies. Nature 405, 1017-24. https://doi.org/10.1038/35016500
Opiyo MA, Marijani E, Muendo P, Odede R, Leschen W, Charo-Karisa H. 2018. A review of aquaculture production and health management practices of farmed fish in Kenya. International journal of veterinary science and medicine 6, 141-8. https://doi.org/10.1016/j.ijvsm.2018.07.001
Petersen A, Andersen JS, Kaewmak T, Somsiri T, Dalsgaard A. 2002. Impact of integrated fish farming on antimicrobial resistance in a pond environment. Applied and Environmental Microbiology 68, 6036-42. https://doi.org/10.1128/AEM.68.12.6036-6042.2002
Phu TM, Phuong NT, Dung TT, Hai DM, Son VN, Rico A, Clausen JH, Madsen H, Murray F, Dalsgaard A. 2016.An evaluation of fish health‐management practices and occupational health hazards associated with P angasius catfish (P angasianodon hypophthalmus) aquaculture in the M ekong D elta, V ietnam. Aquaculture Research 47, 2778-94. https://doi.org/10.1111/are.12728
Qiang J, Zhong CY, Bao JW, Liang M, Liang C, Li HX, He J, Xu P. 2019.The effects of temperature and dissolved oxygen on the growth, survival and oxidative capacity of newly hatched hybrid yellow catfish larvae (Tachysurus fulvidraco× Pseudobagrus vachellii). Journal of thermal biology 86, 102436. https://doi.org/10.1016/j.jtherbio.2019.102436
Reid GK, Gurney-Smith HJ, Marcogliese DJ, Knowler D, Benfey T, Garber AF, Forster I, Chopin T, Brewer-Dalton K, Moccia RD, Flaherty M. 2019. Climate change and aquaculture: considering biological response and resources.Aquaculture Environment Interactions 11, 569-602. https://doi.org/10.3354/aei00332
Romero J, Feijoó CG, Navarrete P. 2012. Antibiotics in aquaculture–use, abuse and alternatives. Health and environment in aquaculture 159.
Rutkayová J, Vácha F, Maršálek M, Beneš K, Civišová H, Horká P, Petrášková E, Rost M, Šulista M. 2018. Fish stock losses due to extreme floods–findings from pond‐based aquaculture in the Czech Republic. Journal of Flood Risk Management 11, 351-9. https://doi.org/10.1111/jfr3.12332
Thilsted SH, Thorne-Lyman A, Webb P, Bogard JR, Subasinghe R, Phillips MJ, Allison EH. 2016. Sustaining healthy diets: The role of capture fisheries and aquaculture for improving nutrition in the post-2015 era. Food Policy 61,126-31. https://doi.org/10.1016/j.foodpol.2016.02.005
Uddin S, Sarker SC, Mondal DK. 2018. Health risk from contaminated aquaculture fish. International Journal of Natural and Social Sciences 5, 01-16.
Ye L, Zhang L, Li X, Shi L, Huang Y, Wang HH. 2013. Antibiotic-resistant bacteria associated with retail aquaculture products from Guangzhou, China. Journal of food protection 76, 295-301. https://doi.org/10.4315/0362-028X.JFP-12-288