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Present Status of Shrimp Industry Waste Management in Bangladesh and the Effect of These Wastes in Prawn Supplementary Diets Along with Other Feed Ingredients

ASTIK DEB SHARMA
Department of Fisheries Technology, Bangladesh Agricultural University, Mymensingh

Abstract/ Executive Summary:

The study was conducted on the present status of shrimp industry waste management in Bangladesh and the effect of shrimp wastes in prawn supplementary diets. The processing plants are the main shrimp waste discarding sources. A survey was conducted during February to May, 2013 in order to establish/collect some basic information on the present status of shrimp waste management in shrimp industries through questionnaire interview on the various parameters. Information was collected from 52 plants of Khulna, Chittagong and Cox`s bazaar region among the 75 plants. All collected information were accumulated, analyzed and are presented in graphs, figures and tables. The study had revealed that about 671.84MT of shrimp was purchased in 52 plants in a day and from them 248.8 MT of waste product was produced during processing. The study results showed that about 80% of the plants sell their waste product. The study showed that most of the plant discharged their waste water in river (63.50%) and 91.42% of the plants treated the waste water before discharge. Both the positive and negative effects were found to use waste material as alternative feed for prawn. To assess the effect of formulated feed, an experiment was conducted both in pond and aquarium system during 25 September to 25 December 2013. Four types of feed were used. Diet 1 (formulated feed), diet 2(commercial feed), diet 3 (custard cake) and diet 4 (suji-ata ball). Protein percent of the feeds were 34.51% in diet-1, 32.67% in diet-2, 25.41% in diet-3 and 21.43% in diet 4. Four experimental diets were assigned to four treatments viz. T1, T2, T3 and T4 for aquarium and pond. The water quality parameters were monitored 15 days interval and the ranges were: temperature 24.50C to 29.90C (pond system) and (26⁰C to 29.8⁰C) (aquarium system); pH 7.87 to 8.45 (pond system) and 7.07 to 8.09 (aquarium system); DO 5.08 to 5.86 mg/L (pond system) and 7.07 to 8.09 (aquarium system). The result of the present study showed that Prawn feed diet 1 and diet 2 resulted highest weight gain 3.63 and 3.5(in pond) and 2.42 and 2.39 g (aquarium), respectively. Based on the result of present experiment, it could be suggested that shrimp waste can be replaced in the diets of prawn along with other ingredients.

Keywords: Shrimp industry, Waste management, Prawn supplementary diets, Feed ingrdients

Location: Khulna, Chittagong and Cox`s Bazaar districts

Start Date: 00-02-2013

End Date: 00-05-2013

Program Area: Animal Health and Management

Commodity: Feed

Objectives:

To assess the present status of shrimp waste production and trend to utilization.
To identify the environmental problems associated with shrimp waste.
To identify the facilities and constrains of shrimp waste processing.
To formulate prawn diet using shrimp waste along with other ingredients.
To determine the effect of shrimp waste on the growth of M. rosenbergii.

Methodology:

Selection of study area: Selection of the study area for the collection of data is based on the waste management in shrimp processing plant. Primary data collection requires selection of an area which would offer a scope to fulfill the objectives of the study. Before selecting a study area, two major factors were considered: (i) What kind of data is required and (ii) Overall environment of the area in which the expected data should be available. The study was conducted during July to October, 2013, among 100 shrimp (EU approved 75) processing industries randomly selected out of 52 industries in Khulna, Chittagong and Cox`s Bazaar districts, where most of the shrimp processing plant and waste processors are concentrated. Khulna, Chittagong and Cox`s Bazaar are the southern coastal city of Bangladesh. Survey design: Collection of data is prerequisite for any farm management and research study. The method of collecting information depends on the purpose of the study undertaken. There are several methods of data collection. The survey method was used in the present study because it is the most appropriate method through which necessary information can be obtained within the shortest possible time and requires less expense than other methods. Preparations of questionnaire: Questionnaire was prepared in accordance with the objectives set for the study. In order to get complete and reliable data, a draft survey schedule was prepared which include production and utilizing and management of those wastes in different industries. Questionnaire interviews: The data was collected by using structured questionnaire interviews. The director and managers of the industries were interviewed to know the overall waste management system of the industries. The amount of waste production and their system of utilizing and management of those wastes in different industries were noted during personal visit to each of the industries. Data collected from one industry was cross-checked with those collected from other industries to rule out and/ or solved any inconsistency in the data through follow-up visits. The parameters selected for data collection were: ? Identification of the main occupation of the industry owners. ? Types of ownership and investment pattern of the industries. ? De-heading period, de-heading place and waste production volume per day of the industries. ? Types of water used for washing shrimp, place of discharged waste water and treated of waste water before discharger or not. ? The management system of waste of those industries ? The utilization of shrimp waste after receiving from the industries. ? Major problem and their future plan about waste management. Sound recorder and digital camera: At the time of interview, the processing method, sanitation and hygienic condition of processing and sample picture were taken by camera. For detail information sound recorder (mobile) was also used during data collection through interview. The primary data and information were collected in respect of operation and activities involved in smoked shrimp production systems, health and hygienic condition including socio-economic condition of smoked shrimp producers. Data analysis: All the collected information from the different processing industries were accumulated and analyzed by MS Excel. Limitation of the study: Finding slots from the director or managers of the industries from their apparently busy schedules was a problem thus several visits were required to find them available for interviews. Sometimes some of the managers were denied directly for interviews due to their lack of time. The time limit of survey was not sufficient. As well some of the interview may have a biased answer to question asked. However the survey was completed.

Source of Information: MS Thesis, Roll No. 13FT JJ-07M, Registration No.:40882 Session: 2013-2014, Department of Fisheries Technology, Bangladesh Agricultural University, Mymensingh

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The study had revealed that about 671.84MT of shrimp was purchased in 52 plants in a day and from them 248.8 MT of waste product was produced during processing. The study results showed that about 80% of the plants sell their waste product. The study showed that most of the plant discharged their waste water in river (63.50%) and 91.42% of the plants treated the waste water before discharge. Both the positive and negative effects were found to use waste material as alternative feed for prawn. To assess the effect of formulated feed, an experiment was conducted both in pond and aquarium system during 25 September to 25 December 2013. Four types of feed were used. Diet 1 (formulated feed), diet 2(commercial feed), diet 3 (custard cake) and diet 4 (suji-ata ball). Protein percent of the feeds were 34.51% in diet-1, 32.67% in diet-2, 25.41% in diet-3 and 21.43% in diet 4. Four experimental diets were assigned to four treatments viz. T1, T2, T3 and T4 for aquarium and pond. The water quality parameters were monitored 15 days interval and the ranges were: temperature 24.50C to 29.90C (pond system) and (26⁰C to 29.8⁰C) (aquarium system); pH 7.87 to 8.45 (pond system) and 7.07 to 8.09 (aquarium system); DO 5.08 to 5.86 mg/L (pond system) and 7.07 to 8.09 (aquarium system). The result of the present study showed that Prawn feed diet 1 and diet 2 resulted highest weight gain 3.63 and 3.5(in pond) and 2.42 and 2.39 g (aquarium), respectively. Based on the result of present experiment, it could be suggested that shrimp waste can be replaced in the diets of prawn along with other ingredients.

Knowledge Management: Thesis