Open Access Original Research Article

Utilization of Waste Lemi Blue Swimming Crabs on Preference Level of Crackers

Rio Chandra Gunawan, Evi Liviawaty, Achmad Rizal, Emma Rochima

Asian Journal of Fisheries and Aquatic Research, Page 1-13
DOI: 10.9734/ajfar/2020/v8i130128

Lemi is a yellowish product which usually finds under the surface of the cooked blue swim crab carapace. This research aims to determine the number of lemi addition from the utilization of blue swimming crabs waste in crackers that produces the most liked crackers by panelist. This research was undertaken in the Fishery Production Processing Laboratory, Faculty of Fisheries and Marine Sciences Universitas Padjadjaran and Food Technology Laboratory, Faculty of Engineering, Pasundan University in January 2020. The method of research used was an experimental method with the treatment of addition of lemi blue swimming crabs in 15%, 20%, 25%, 30% and 35% based on the amount of tapioca flour with 20 semi trained panelists as a repetition. The observed parameters are physical test (level of florescence), proximate test (moisture content, ash content, protein content and fat content in preferred treatment) and hedonic test (favorite test) based on organoleptic characteristics which include the appearance, smell, textures and flavors. The level of acceptance of crackers are analyzed using a non parametric statistical method Friedman then followed by the Bayes test to discover the best treatment of crackers. The results showed that the addition of a 25% lemi is a more preferential treatment by the panelists.

Open Access Original Research Article

Awareness and Level of Adoption of Aquaculture Management Techniques in Igabi Local Government Area of Kaduna State, Nigeria

A. A. Ijah, O. N. Oladele, B. F. Ishola, J. T. Ayodele, U. F. Yahaya, S. Omodona, O. Olukotun

Asian Journal of Fisheries and Aquatic Research, Page 14-29
DOI: 10.9734/ajfar/2020/v8i130129

The study investigated the awareness and level of adoption of aquaculture management techniques in Igabi Local Government Area of Kaduna State, Nigeria. Purposive and random sampling techniques were adopted to select 60 fish farmers from the study area and data were collected from the fish farmers with the aid of well structured questionnaire administered to them face to face by the researchers and some trained enumerators. The data collected were analyzed using descriptive statistics such as means score, percentage, tables, Likert scale and multiple regression analysis. The findings indicated that majority (60.00%) of the respondents were male, while 95.00% of the farmers were between the age of 21-60 years with 91.67% of the fish farmers educated and 61.67% of fish farmer are highly experienced with 6 years and above. The findings also revealed that majority of the farmers are aware of aquaculture management techniques in the study area with 70.00% getting information on these techniques from extension agents followed by 55.00% who relied on other fish farmers for relevant information about fish farming. The Likert scale result revealed that thirteen out of twenty – one aquaculture management techniques postulated were adopted while eight were not adopted implying that 61.90% of the postulated techniques were adopted by the fish farmers in the study area. The result of the regression analysis showed that level of awareness of techniques; access to credit facility and number of contact with extension agent were the three factors influencing adoption of aquaculture management techniques by the fish farmers in the study area. Lack of credits/ fund to adopt improved practice (75.00%), expensiveness of techniques (55.00%), complexity of techniques (55.00%), and lack of support from the government (51.67%), lack of adequate and proper information on these techniques (50.00%), lack of training (45.00%) and lack of awareness (33.33%) were identified as constraints affecting adoption of aquaculture management techniques in the study area. In conclusion, the study revealed that the farmers were aware and adopted good numbers of the aquaculture management techniques introduced to them The study recommends that farmers should establish cooperative society so that they can pool their resources and knowledge together in solving most of the problems identified.

Open Access Original Research Article

The Effect of Concentrations of Basil Leaves Extract as Natural Preservatives in Mullet Fillet on Bacterial Growth in Low-Temperature Storage

Shafa Shofiani, Junianto ., Iis Rostini, Eddy Afrianto

Asian Journal of Fisheries and Aquatic Research, Page 30-41
DOI: 10.9734/ajfar/2020/v8i130130

This research aimed to know the shelf life of mullet fillet with basil leaves extract treatment in different concentration based on the amount of bacteria contained on mullet fillet during low temperature storage. The research was conducted at The Central Laboratory and The Laboratory of Fishery Product Processing, Padjadjaran University, Jatinangor. The method used in this research was experimental with four treatments by duplo. Basil leaves extract treatment concentrations were given in 0%, 1.5%, 3% and 4.5% concentrations, soaked for 30 minutes and stored at low temperature (5-10℃). The observations for grey mullet fillet with 0% concentration (without soaking on basil leaf extract treatment) were made on the 1st, 3td, 5th, 6th, 7th, 8th and 9th day of research. The observations for 1.5%, 3% and 4.5 concentrations were made on the 1st, 3rd, 5th, 6th, 7th, 8th, 9th, 10th, 11th and 12th day of storage period. The parameters observed in this research was the amount of bacteria. The result of research showed that the use of basil leaf extract in concentration of 3% on mullet fillet during low temperature storage has the longest shelf life, that was until 11 days with total amount of bacteria about 4.55 x  cfu/g.

Open Access Original Research Article

Analysis of Supply Chain Model of Dogol Shrimp (Metapenaeus ensis) Capture in Pangandaran, West Java, Indonesia

Revanda Fitriadi Wicaksana, Atikah Nurhayati, Ibnu Bangkit Bioshina Suryadi, Asep Agus Handaka

Asian Journal of Fisheries and Aquatic Research, Page 42-51
DOI: 10.9734/ajfar/2020/v8i130131

This research aims to analyze the management of the dogol shrimp supply chain in terms of product flow, financial flow, information flow and risk as well as marketing margins of each chain involved in KUD Minasari fish market, Pangandaran Regency, West Java Province. The method used is descriptive qualitative and quantitative using primary and secondary data with snowball sampling methods. The analytical tool used is the analysis of supply chain conditions, risks and consequences of dogol shrimp supply chains. The results of this study showed that the process of product flow of the dogol shrimp supply chain in KUD Minasari, Pangandaran Regency involving fishermen, wholesalers, small traders, restaurants and end consumers is quite well related to channeling from fishermen who have not been supported by fishermen's knowledge related to shrimp quality. The dogol shrimp supply chain distribution channel is divided into 8 types of marketing with a significant difference in whether the fish market is involved or not. The marketing channel of dogol shrimp catches in Pangandaran Regency shows that the structure of the second chain with business actors is fishermen → fish auction → large traders → small traders → consumers are more efficient with a marketing margin of Rp. 35,000 / kg or 31.81%, farmer share by 75.87%. The largest market share value of 59.25% is on the 8th channel with restaurants as a marketing agent.

Open Access Original Research Article

Effect of Stocking Density on Survival Rate and Growth of Tilapia (Oreochromis niloticus Linnaeus, 1758) in Round Container with Water Current Combined with Venturi Aeration System

Ayi Yustiati, Shalsabilla Nariswari, Iis Rostini, Ibnu Bangkit Bioshina Suryadi

Asian Journal of Fisheries and Aquatic Research, Page 52-61
DOI: 10.9734/ajfar/2020/v8i130132

The aim of this research is determine of the optimal stocking density for survival rate and growth of tilapia in round container with water current combined with venturi aeration system. Place of research in the Aquaculture Laboratory, Building 4 Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran. The research method used is experimentally with using the Completely Randomized Design (CRD) method which consists of three treatments, there are 15 fish, 22 fish, 30 fish, with five replications. Using water of 15 L per container. The fish used are 3-5 cm tilapia fingerlings. Fish were maintained for 40 days. The feed given is 5% from biomass which is adjusted every 10 days. The parameters observed were survival rate (SR) and observed everyday, daily grow rate (DGR), feed conversion ratio (FCR) and feed efficiency were observed every 10 days. The result was significantly different from the analysis of variance (ANOVA) with the F test at 95% confidence intervals and then using Duncan test to compare the rates between treatments. The results showed that the best treatment was stocking density of 15 fish / 15 L in round container with current combined with venturi aeration system with survival rate of 78.67 ±10.95%, daily grow rate of 3.68 ± 0.12%, feed conversion ratio of 1.19 ± 0.13 and feed efficiency of 85.01 ± 8.97%.