Catfish farming: a sustainability study at Eriwe fish farming village in southwest Nigeria

2021 ◽  
Vol 29 (2) ◽  
pp. 827-843
Author(s):  
Ewumi Azeez Folorunso ◽  
Muhammad Arifur Rahman ◽  
Isaac Sarfo ◽  
George Darko ◽  
Olumide Samuel Olowe
2018 ◽  
Vol 8 (2) ◽  
pp. 354-364
Author(s):  
A. N. Irkitova ◽  
A. V. Grebenshchikova ◽  
A. V. Matsyura

<p>An important link in solving the problem of healthy food is the intensification of the livestock, poultry and fish farming, which is possible only in the adoption and rigorous implementation of the concept of rational feeding of animals. In the implementation of this concept required is the application of probiotic preparations. Currently, there is an increased interest in spore probiotics. In many ways, this can be explained by the fact that they use no vegetative forms of the bacilli and their spores. This property provides spore probiotics a number of advantages: they are not whimsical, easily could be selected, cultivated, and dried. Moreover, they are resistant to various factors and could remain viable during a long period. One of the most famous spore microorganisms, which are widely used in agriculture, is <em>Bacillus subtilis</em>. Among the requirements imposed to probiotic microorganisms is mandatory – antagonistic activity to pathogenic and conditional-pathogenic microflora. The article presents the results of the analysis of antagonistic activity of collection strains of <em>B. subtilis</em>, and strains isolated from commercial preparations. We studied the antagonistic activity on agar and liquid nutrient medias to trigger different antagonism mechanisms of <em>B. subtilis</em>. On agar media, we applied three diffusion methods: perpendicular bands, agar blocks, agar wells. We also applied the method of co-incubating the test culture (<em>Escherichia coli</em>) and the antagonist (or its supernatant) in the nutrient broth. Our results demonstrated that all our explored strains of <em>B. subtilis</em> have antimicrobial activity against a wild strain of <em>E. coli</em>, but to varying degrees. We identified strains of <em>B. subtilis</em> with the highest antagonistic effect that can be recommended for inclusion in microbial preparations for agriculture.</p><p><em><br /></em><em></em></p>


2020 ◽  
Vol 22 (1) ◽  
Author(s):  
Sunday Joseph Ayamolowo ◽  
Lydia Feyisayo Akinrinde ◽  
Monisola Omoyeni Oginni ◽  
Love Bukola Ayamolowo

The global incidence of cancer is rising, and low-income and lower-middle-income countries have the worst figures. However, knowledge of cervical cancer prevention and cervical cancer screening practices remains poor in these regions. This study assessed the concept of health literacy as a potential determinant of knowledge of cervical cancer prevention and screening practices among female undergraduates. A descriptive cross-sectional study was conducted among 385 female undergraduates at a university in southwest Nigeria. A validated questionnaire composed of subscales on nine components of health literacy, knowledge of cervical cancer prevention, and cervical cancer screening practices was used for data collection. The majority of the respondents obtained a high score on most of the components of health literacy and 66% had good knowledge of cervical cancer prevention. Only 11% demonstrated good practices of Pap smear testing. Of all the components of health literacy, “feeling understood and supported by healthcare providers” (OR = 0.075; 95% CI [0.036–0.115]; p = 0.015) and “understanding health information well enough to know what to do” (OR = 0.055; 95% CI [0.006–0.104]; p = 0.029) were significantly associated with knowledge of cervical cancer prevention. Out of the major challenges related to cervical cancer screening among undergraduates, the feeling of being at risk (OR = 4.71; p < 0.05) and uncomfortable experiences from past screening (OR = 0.12; p < 0.05) were significantly associated with going for cervical cancer screening. The study concluded that levels of health literacy influenced knowledge of cervical cancer prevention among female undergraduates, but it did not affect their engagement in cervical cancer screening practices.


Mousaion ◽  
2019 ◽  
Vol 37 (3) ◽  
Author(s):  
Oluyemi Folorunso Ayanbode ◽  
Williams Ezinwa Nwagwu

This article concerns the study examining the use of collaborative technologies (CTs) for the acquisition, creation, sharing, transfer, and retention of knowledge by therapy team members (TTMs) in psychiatric hospitals, and the determinants of the use of CTs as well as how they relate to knowledge management (KM) practices. The skills of the TTMs in the use of CTs were also investigated. Carried out within the positivist and constructivist paradigms, a sample survey was conducted among TTMs from two purposively selected psychiatric hospitals in Southwest Nigeria. Quantitative data was collected from self-administered questionnaires completed by 283 TTMs and was analysed using the Statistical Package for Social Sciences (SPSS) 22. Qualitative data was collected from interviews conducted with four heads of departments. The study showed that the TTMs in the relevant hospitals used 26 different CTs for knowledge acquisition, creation, sharing, transfer, and retention. The largest proportion (84.5%) of the respondents confirmed that skill in the use of CTs determined the use of CTs for KM practices. More than half (54.3%) of the TTMs were highly skilled in the use of CTs for KM practices. The findings suggested that the respondents were positively inclined towards the use of CTs and that they were involved in the use of various CTs to facilitate KM practices and processes. It was found that task interdependence was characteristic of the TTMs’ work in the selected psychiatric hospitals, and that, to benefit from the potential advantages of task interdependence and to effectively employ CTs in operations and processes, TTMs’ skills in the use of CTs should be developed. In addition, professional ties among experts in different fields of specialisation should be encouraged.


Author(s):  
Ekaterina Grinberg

In two parts of the article, more than 70 errors and violations of the Biotechnics of artificial breeding of Pacific salmon in salmon hatcheries are collected and summarized, which lead to an immediate or delayed deterioration of the quality of reared fry and a decrease in their survival rate. Deviations from the biological basis of fish farming are shown and possible consequences of such errors or violations are predicted. In the first part of the article (#7,2020) there were General errors (throughout the entire fish-breeding process), as well as violations of Biotechnics during the work with producers, collecting eggs and preparing them for incubation, in the second part-violations of Biotechnics during the incubation of eggs, holding pre-larvae, rearing and release of young. Their correction, prevention or minimization of consequences will significantly improve the quality of sexual products and offspring from producers, increase the linear and weight gain of juveniles during rearing, improve the coefficient of feed payment, reduce the time of rearing, improve the epizootic situation by developing immunity in fry and mobilizing other protective reactions of their body, significantly reduce waste at all stages of the production process, increasing survival by 10–15%. In conclusion, it is noted that the first and most important condition for an efficient salmon hatchery is the creation of optimal environmental conditions at each stage of the production process. The second condition is strict compliance with the Biotechnics of artificial salmon breeding and the complex of veterinary and sanitary, fish-breeding and meliorative and therapeutic and preventive measures. The third is the availability of competent specialists who regularly improve their skills in accredited Universities to implement, control and manage the first two conditions.


Author(s):  
Z. Bolatbekova ◽  
S. Assylbekova ◽  
B. Kulatayev ◽  
S. Koishybayeva ◽  
N. Bulavina

The aryicle presents the results of a comparative study of the biochemical composition of earthworms of dendrobene and prospector rocks, the peculiarities of their cultivation and their use for feeding when growing juvenile tilapia and clary catfish. The experience of cultivating earthworms of two breeds using the improved methods of foreign authors is described. The results of a study of the biochemical composition of cultivated objects that determine their nutritional value for feeding fish are presented. The fish-breeding and biological indicators of juvenile tilapia and clary catfish, obtained during the cultivation of dendrobene and prospector in fish farming in the Almaty region (VI fish-breeding zone) during worm feeding, are analyzed. A comprehensive analysis of the studied indicators made it possible to assign a certain rating place to each worm breed in relation to its use as fish feed.


2019 ◽  
Vol 10 (4) ◽  
Author(s):  
Arnar Bjarnason ◽  
Soffia Karen Magnúsdóttir

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