The experiment was conducted at Sharnalata Agro Fisheries Limited, Radhakanai, Fulbaria, Mymensingh by using three treatments (T1, T2, T3) and each having 2 replications for a period of 35 days in hapa system to see the growth performance of tilapia. In T1-fish fed four times daily, T2-fed three times daily and T3-fed two times daily. GIFT fingerlings weighing 30 ± 3.80 g were reared by feeding a formulated diet containing 32% protein (Mega 301p) feeding at the rate of 10% of the body weight of fish for the first 3 weeks and then it was adjusted to 8% of the body weight for the next 2 weeks. It was found that mean weight gain were 105.12 ± 4.60, 105.8 ± 5.23 and 108.2 ± 4.86 g respectively. The mean weight gain was not significantly different (p>0.05) among three treatments but a bit higher growth was found in T3 compared to T1 and T2. The SGR values of the experimental fish in T1, T2 and T3 were 4.32 ± 0.32, 4.34 ± 0.30 and 4.38 ± 0.28 respectively. SGR (%/day) was highest in T3 and FCR was lowest as expected. GIFT reared in hapa showed better growth performance by feeding two times daily. Many previous researches showed that maximum growth rate was obtained by feeding fish three times a day. Therefore, it can be concluded that the ambiguity of the present results with the previous works (feeding three times provided better growth) can be resolved by conducting experiments under control temperature conditions and by subsequently extrapolating that results in farm conditions especially during best growing season of the fish (June-July).
A total of 286 Badis badis were collected from the Sutiyahali Reservoir in Mymensingh from January to December 2022, and their sex ratios, first sexual maturity, length-weight relationships and condition factors were evaluated. The weight and length of B. badis varied from 0.81 to 1.01g (0.89±0.30) and 4.08 to 4.60cm (4.36±0.31), respectively. Logistic curves depicting a sex ratio and 50% maturity (L50) estimated at 4.5cm for females and 4.05cm for males, as well as males reaching first sexual maturity with a shorter length than females. Regression coefficients in every month differ significantly (p<0.05), according to the regression equations. Each month, the values of the exponent b were less than 3 (b<3), with the highest value of b recorded in August (2.80) and the lowest value recorded in January (2.33). This led to a monthly negative allometric growth being seen. A strong positive relationship is evident from the coefficient of determination (r2) values, which ranged from 0.92-0.98 with an average of 0.961. During the study, the average condition factor (Kn) value for B. badis was found to be 1.02±0.13, which is a positive indicator of the fish's physical well-being. The condition factor values varied between 0.84 to 1.39, making it abundantly clear that B. badis are in good health and the waterbody is an ideal habitat for their survival. Relative condition factor (Kr) values, which varied between studies and ranged from 0.78 to 1.01, also exhibited a noteworthy difference (p<0.05). For its long-term management, the above findings will be very helpful.
<p>The notion of Fourth Industrial Revulution(4IR) and Sustainable Development Goals (SDGs) are concurrent. Both are global issue which are equally important to each and evry country and interconnected in many ways. This study is qualitative and performed both content and contextual analysis (Silverman, 1993) to address how the 4IR could contribute and/or restrain to achieve the SDGs, particularly in Bangladesh. The papers were first sorted and further scrutinized to identify the links between 4IR and the SDGs. That Paper revealed that 4IR is a great enabler to achieve SDGs, outweighing the negatives of 4IR. Further research could quantitatively address the nexus between SDGs and 4IR further to draw specific research implications. It is also suggested to consider a particular country and/or industry for looking closely. Hopefully, the study will be proven useful for decision-makers of businesses and governments to understand and adopt the right strategies to attain SDGs and exploit 4IR.</p>
The present study applied different statistical tools to determine abused and neglected status among elderly people of the Chitmahal areas of Bangladesh. Also investigated the factors that associated with abuse and neglected status. The present study is conducted at the former Chitmahal areas which are situated at four districts namely Lalmonirhat, Nilphamari, Kurigram and Panchagar in Northern Bangladesh. Among the total 141 Chitmahal areas, 36 Chitmahal areas are randomly selected for the study area and finally 270 elder families are included for this research purpose. Information about socio-demographic, economic, health status, abuse and neglected related characteristics of the respondents and their family members was collected by using a pre-tested structured questionnaire. Elder abuse and neglect is the widespread issue in the world. This study found that most of the elder people (71.5%) of Chitmahal areas were neglected and abused in any form. Separately they were abused by psychologically (50.4%), financially (60.4), treatment related neglect (40%) and physically (1.5%). Most of them were neglected by their family members which mostly happened in the families with low monthly income and expenditure. The factors like age of elder people, educational level, previous and present occupation of respondents, ownership of house, monthly family income and expenditure, people’s participation in social occasion are the common significant factors for different types of abuse and neglected status of the aging peoples of Chitmahal areas in Bangladesh. The overall findings found a close relationship of abused and neglected status of the elderly peoples with their socio-economic, educational background and family economic condition. This information needs to be properly utilized in developing suitable social and motivational programs for elder families in the Chitmahal areas and countrywide by NGO’s and Government initiatives.
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