In vitro maturation (IVM) of oocytes provide an excellent opportunity for cheap and abundant embryos for carrying out animal improvement. With the aim for studying the quality of oocyte in different seasons of Black Bengal goat, both right and left ovaries were collected from the slaughter houses. For each of the specimens, gross parameters such as right, left, corpus luteum (CL)-present and corpus luteum (CL)-absent group were evaluated on the basis of weight (g), length (cm), width (cm), follicles aspirated and number and state of cumulus-oocyte-complexes (COCs), normal COCs and abnormal COCs, the effect of season on cumulus oocyte complexes (COCs) of goat oocytes. Our study revealed that the average number of follicles and oocytes recovery rate were higher in summer than in winter season and recovery rate of grade A and B oocytes were higher in summer than that of in winter and recovery rate of grade C and D were higher in winter than that of in summer. In the present study a significantly greater number of oocytes per ovary were recovered from ovaries without a corpus luteum than from ovaries with a corpus luteum. So the summer was the best season for recovery of COCs which have a worthy competence to be matured in vitro.

Due to accelerated economic growth and increased food production, per capita rate of waste generation is also increasing in Bangladesh. Being the ninth most populous and twelfth most densely populated country in the world, Bangladesh will face serious crisis in both food scarcity as well as food loss if food wastage problem is not addressed. At household level, 5.5 percent food is wasted on daily basis. Due to its large volume, the disposal of food waste will be a major problem. Production of Organic acid from kitchen waste via anaerobic digestion can eliminate both waste pollution problem and high cost production of organic acid. Such organic acid can be used in food and beverages, cosmetics, and detergent industries. The present study was undertaken to convert kitchen waste generated from cafeteria of Atomic Energy Research Establishment (AERE), Savar, Dhaka into lactic acid using natural microflora. The number of indigenous microflora in kitchen waste were found to be 1.25×10⁷ cfu/mL and pH range of 5.0-6.0. The ratio of rice, meat and vegetables in the kitchen waste was found to be 3:1:1. Kitchen waste was found to contain approximately 19.03% protein, 3.2% fat and 1.5% ash. Anaerobic digestion was carried out in shake flasks at various initial pH (5.0, 6.0 and 7.0) and different temperature (30℃, 37℃ and 45℃) for 96 hours. Highest lactic acid from Kitchen waste was produced (24.00 g/L) at 24 h at initially adjusted pH-7.0. An attempt to recover Lactic acid from fermented broth was conducted using rotary evaporation at 100℃ and at (60-65) cm. Hg vac. The results indicated that, the volume of food waste can be greatly reduced and can be converted into value-added products such as lactic acid via anaerobic fermentation.

An assessment was carried out to observe the impacts of fish sanctuary on the livelihoods from fishers of Ruhul beel and Bamonji beel under Chalan beel in Pabna district of Bangladesh. Data were collected from selected sanctuary sites with prepared and pretested questionnaire and analyzed through statistical tests like ANOVA (Analysis of Variance), regression, correlation, Chi-square were used to identify the relationships between variables and significant differences/association among them. From physical capital point of view, it was found that 91.3% of fishermen’s houses were katcha, 6.52% were semi-pacca, and only 2.17% were pucca in case of Ruhul beel and in case of Bamonji beel 90.54% of fishermen’s houses were katcha, 8.11% were semi-pacca, and only 1.35% were pacca. There was no significant variation (ANOVA; P>0.05, Chi Square test; non-significant at 0.05 level) among the residences by well-being. From human capital, average age of the household heads (HHH) was 37.95(±) 1.354 for Ruhul beel respectively, whereas for Bamonji beel the average age were 38.05(±) 1.064. The medium aged group fishermen were dominant in Ruhul beel than Bamonji beel. There were no significant difference (P>0.05) found between the age groups by well-being. From income capital it was observed highest part of income were come from fishing contributing 64.89% (653.72±128.82 US$), 43.58% (431.89±74.66 US$) for Ruhul beel and Bamonji beel respectively. As per as natural and social capital, average used land holding was 0.274±0.136 ranging 0.065 ha to 0.534 ha for Ruhul beel and 0.228±0.305 ha ranging 0.040 to 0.267 ha for Bamonji beel. The average land holdings did not vary significantly (P>0.05) between the sites.

The Nelumbo nucifera known as sacred lotus is an ornamental plant having medicinal possessions. Lotus seeds, which are currently the oldest known plant seeds, contain many functional constituents. The seeds have been widely used as both medicine and food.  In the present studies, the nutrient composition of collected from two separate beels at Tarakanda, Mymensingh were determined. The nutrient composition was determined as moisture 17.727 (± 0.053), ash 9.49 (± 0.059), crude protein 16.563 (± 0.076), crude lipids 4.146 (± 0.038), crude fiber 7.755 (± 0.045), carbohydrate 44.042 (± 0.011). The results showed that lotus seeds contained a high content of moisture, crude protein, crude lipids, crude fiber, ash and carbohydrate. From this research, it found that lotus seeds were rich in crude protein and carbohydrate. The study may conclude that seeds could be incorporated in feed formulation as a source of nutrients. The present experiment may provide a guideline for the use of lotus seeds as human food.