Browsing by Author "Adewale, A.Y."

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    Comparative studies on the effect of ovaprim and coconut water (Cocos nucifera) on the hatchability of Clarias gariepinus
    (Federal University Gashua, 2015) Adewale, A.Y.; Adeshina, Ibrahim
    The effect of ovaprim and coconut water (Cocos nucifera) on the fecundity and hatchability of Clarias gariepinus were investigated. A total of eight broodstocks make up of males (550-900g) and four females (500 – 517g) were selected for artificial spawning using different treatments of hormonal dosage of ovaprim, coconut water, mixture of coconut water and ovaprim and control (0.30ml/kg-0.26ml/kg and 0.00ml.kg) respectively. The eggs hatched after 25 hours at temperature 230C – 270C. The effectiveness of the coconut water induced in C. gariepinus was assessed using percentage fertilization and hatchability as indices. However, mixture of coconut water and ovaprim respond effectively on C. gariepinus with fertilization 50.66±10.00 followed by ovaprim 38.66±7.63 and hatchability 50.00±10.00 followed by ovaprim 38.66±18.92. There was no significant difference (P <0.05) in mortality in all the treatments.
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    Effects of different hormones on the growth performance of Clarias gariepinus
    (Kebbi State University of Science and Technology, Aliero, 2016) Adeshina, Ibrahim; Adewale, A.Y.; Dalhatu, B.J
    The effects of different hormones on the growth performance of Clarias gariepinus were investigated. A total of eight broodstocks weighing between 500 and 900g (4 males and 4 females) were selected for artificial spawning using different treatments of hormonal dosage of Ovaprim, coconut water, mixture of coconut water and ovaprim and control (0.30ml/kg-0.26ml/kg and 0.00ml/kg) respectively in replicates. The result shows that the mean weight of egg stripped was higher in fish injected with coconut water + ovaprim with 80g. Mortality was highest in first seven days in fish treated with ovaprim (73), seven to fourteen days in fish treated with coconut water (60) and in twenty-first to thirtieth days in fish eggs stripped from fish treated with coconut water+ovaprim (5). Fry from the fish treated with coconut water+ovaprim had highest initial weight gain, final weight gain and weight gain of 1.44±0.91, 12.31±9.30, and 10.87±2.89 respectively. There is significant different in the initial weight, final weight and weight gain of the fry (P<0.05). Fry from the fish treated with coconut water +ovaprim had highest in ADG, SGR, FCR, and PER with 0.36g, 0.07g, 0.20g, and 0.21g. Dissolved oxygen was between 5.8 and 7.8mg/L, 22.5 and 27.80C, and 7.25 and 7.33. It can be concluded that uses of coconut water+ovarprim at 50% mixture is adequate to improve growth performance of the fry which will also minimize the cost of seed production.
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    Eugenia cayrophyllata oil as anesthetic in cultured African Catfish, (Clarias gariepinus, Burchell 1822) juveniles
    (Fedral University Gashua, 2016) Yusuf, O.Y.; Adeshina, I; Adewale, A.Y.
    The aim of this study was to compare some semen physical characteristics of both wild and cultured Clarias gariepinus broodstocks in order to know their relative economic advantages to farmers. Nine male broodstocks were selected with their weight ranges between 700g to1250g, with total length ranges between 51.50cm to 61.00cm. The fish were sacrificed by spinal transaction, after which the fish were dissected and the gonads were removed. The gonads were examined after weighing, and were evaluated for pH, motility, volume and sperm concentration. Descriptive statistics was used to find their minimum and maximum values. Student t-test was used to analysed the differences of their means. Also, the relationships between semen parameters were tested using the bivariate correlation coefficients of pearson. Significant differences (P<0.05) were observed in semen mean progressive motility (%), pH, volume (ml), weight of gonads (g) of Cultured (88.00±6.96%, 7.22±0.26, 8.01±1.13ml, 4.16±1.59g) and Wild (56.30±42.30, 6.89±0.33, 5.80±0.40, 2.01±1.02) broodstocks, respectively. There was significant correlation (P<0.05) between pH and progressive motility, volume and concentration, weight of gonads and volume of the Cultured broodstocks. There was a significant correlation (P<0.05) between weight of gonads and concentration of both Cultured and Wild African Catfish. The semen quality of the cultured broodstocks was higher than that of wild broodstocks and this may be due to differences in their environment and their feeding conditions. It is recommended that further research should be done on evolutionary and genetic performance of wild African catfish.
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    Occurrence of Klebsiella Species in cultured African catfish in Oyo State, South-West Nigeria
    (Nigerian Veterinary Medical Association, 2016) Adeshina, Ibrahim; Abdulrahman, S.A; Adewale, A.Y.
    Over the years, the increase in population, incomes, and demograph has lead to the increase in the consumption of fish as a result of its nutritional values. Clarias gariepinus is the most cultured fish species in Nigeria and attracts significant economic value making it a species of interest. Fish is capable of habouring diseases and therefore, must be safe and free of infectious pathogens if aquaculture should fulfill its potential. Infectious disease has being one of the major causes of death worldwide in recent times. Klebsiella species in the family of enterobacteriacea causes urinary tract infections, pneumonia, septicemias and soft tissue infections in human. They are opportunistic pathogens found the gastrointestinal tract of the host and spread rapidly thereby capable of causing nosocomial outbreaks. The study examined the prevalence of Klebisiella species in fish tissues in Oyo State, Nigeria. A total of seven hundred and fifty-six (756) fish organs from one hundred and eight (108) fish were examined for Klebsiella investigation. Fish of body weight ranges between 300g to 1300g were used for this study using stratified methods. The samples were examined using standard methods, biochemical characterization methods were employed in this study and data obtained were analysed using descriptive statistics. The results show that all the 66 isolates were gram-negative, did not haemolysis sheep blood, catalase positive, oxidase negative, non-motile, and ferment lactose, sucrose and mannitol sugars. Percentages of klebsiella species occurrence were 22.22% in forest zone and 40.72% in savannah zone. Fish with total length 51-60cm had highest incidence (52.17%), and body weight of 601-900g had highest incidence (57.14%). Generally, skin, gill, liver and muscle were the major location of Klebsiella species occurrence ranges from 11% to 14.81%. Therefore occurrence of Klebsiella species in higher in savannah zone than forest zone. The distribution of the klebsiella in fish in Oyo State shows that it is a problem present in fish tissues.