Siyanbola Omitoyin
@ui.edu.ng
Senior Lecturer, Department of Aquaculture and Fisheries Management, Faculty of Renewable Natural Resources
University of Ibadan
RESEARCH INTERESTS
Aquaculture /Fisheries Management, Policy and Gender
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
O.O. Oyebola, S.B. Omitoyin, A.O.O. Hounhoedo, and H. Agadjihouèdé
Elsevier BV
Siyanbola A. Omitoyin and Kemisola D. Osakuade
Central Fisheries Research Institute (SUMAE)
The study investigated the level of awareness and constraints the farmers were facing in adopting effective biosecurity measures in Ekiti State. Primary data were collected using multi-stage sampling technique to randomly select 150 fish growers, out of which 144 questionnaires were recovered. Analysis was carried out using descriptive statistics, four-point Likert scale and multiple regression. The result showed that 76.4% of the fish farmers with mean age of 40.48±10.28years were married, 61.1% owned the land on which they farm their fish, 73.6% operated as small scale fish farmers with farm size of <1 hectare. About 91.0% knew about fish diseases, the main source of pollution on the farm was flooding while some (61.1%) experienced outbreak of fish diseases at juvenile stage. High cost of facilities, lack of financial assistance, poor knowledge on biosecurity, expensive laboratory charges and inadequate monitoring by extension agents was perceived as the major constraints. The farmers need financial help to get adequate facilities and to enlarge their scale of operation. Adequate extension services to enlighten them on the effective biosecurity measures should be adopted.
Oluwakemi Abimbola Adejonwo, Bamidele Oluwarotimi Omitoyin, Emmanuel Kolawole Ajani, Olugbenga Adeniran Ogunwole, and Siyanbola Adewumi Omitoyin
Walter de Gruyter GmbH
AbstractEffects of dietary supplementation of Pleurotus pulmonarius stalk meal on growth, gut microflora and intestinal morphology of Clarias gariepinus were assessed in this study. The stalk meal was incorporated at 0.0 g/100 g (Control), 2.5 g/100 g (PSM 2), 5.0 g/100 g (PSM 3), 7.5 g/100 g (PSM 4) and 10.0 g/100 g (PSM 5). Clarias gariepinus (n=375), with an initial weight of 10.84±0.04 g, were allotted at 25 fish/60 litres of water in a completely randomised design for each diet treatment in triplicate. Feeding trial was conducted for eight weeks. Weight gain, specific growth rate, survival rate, feed intake and feed conversion ratio were not significantly different across all diet treatments. However, the production performance index of the fish and protein efficiency ratio were higher in fish fed PSM 3 diet than other treatments. Total viable bacteria count in the gut ranged from 7.56 (PSM 2) to 8.34 log10 cfu/g (PSM 4), while lactic acid bacteria count was between 5.00 (control) and 7.03 log10 cfu/g (PSM 3). Escherichia coli were identified in the gut of the control group but were not detected in those fed supplemented diets. More colonies of Salmonella and Vibrio species were observed in the control but fewer colonies in the diets supplemented groups. The proximal, middle and distal villus length, proximal, middle and distal cryptal depth, proximal and distal absorption area of fish fed supplemented diet were higher than those of the control. Conversely, proximal, middle and distal villus width and middle absorption area were not significantly different. In spite of observable favourable gut microflora and gut histomorphology of fish fed supplemental P. pulmonarius stalk meal diet, these attributes did not manifest in growth performance indices.