Molecular identification of the black tiger shrimp (Penaeus monodon), the white leg shrimp (Litopenaeus vannamei) and the Indian white shrimp (Fenneropenaeus indicus) by PCR targeted to the 16S rRNA mtDNA

2011 ◽  
Vol 125 (4) ◽  
pp. 1457-1461 ◽  
Author(s):  
Ananías Pascoal ◽  
Jorge Barros-Velázquez ◽  
Ignacio Ortea ◽  
Alberto Cepeda ◽  
José M. Gallardo ◽  
...  
2018 ◽  
Vol 13 (2) ◽  
pp. 91
Author(s):  
Bunga Rante Tampangallo ◽  
Ike Trismawanti ◽  
Muliani Muliani

Probiotik RICA kemasan cair telah diaplikasikan pada pemeliharaan udang windu P. monodon maupun vaname Litopenaeus vannamei. Namun, probiotik kemasan cair dirasa banyak mengalami kendala dalam hal pengiriman. Alternatif bentuk kemasan yang saat ini sedang dikaji adalah bentuk kemasan serbuk. Penelitian ini bertujuan mengetahui viabilitas probiotik RICA setelah dikemas dalam bentuk serbuk, waktu penyimpanan, serta pengaruhnya terhadap sintasan dan pertumbuhan benih udang windu yang dipelihara dalam bak terkontrol. Penelitian dilakukan dalam dua tahap, yakni penepungan probiotik, pengamatan populasi probiotik, dan aplikasinya pada pemeliharaan udang windu. Wadah pemeliharaan udang windu menggunakan bak fiber volume 500 liter. Udang uji yang digunakan adalah udang windu PL-12 dengan kepadatan 200 ekor per bak. Penelitian menggunakan rancangan acak lengkap empat perlakuan tiga ulangan. Perlakuan menggunakan probiotik serbuk RICA-4 (A), (B) probiotik RICA-5, (C), probiotik RICA-1, dan (D) tanpa probiotik. Hasil penelitian menunjukkan bahwa populasi probiotik RICA setelah diserbukkan berkisar 107 sel/mL. Sintasan, bobot, dan panjang udang windu setelah dipelihara selama 48 hari dengan menggunakan probiotik RICA serbuk belum memberikan hasil yang signifikan (P>0,05), namun pemberian probiotik RICA telah meningkatkan total hemolim udang windu secara signifikan (P<0,05) dibanding kontrol. Pada aplikasi probiotik ini terjadi pertumbuhan lumut dalam bak pemeliharaan akibat penggunaan tepung kanji sebagai filler.RICA probiotics have been tested in multiple farms of black tiger shrimp P. monodon and whiteleg shrimp Litopenaeus vannamei with some promising results. However, the probiotics’ distribution in the form of liquid faces some limitations due to transportation regulations involving liquid-based substances. A powder form might be an easy and secure alternatively for the distribution of the probiotics via airplane. The purpose of the study was to observe the viability of RICA probiotics after powdering and storage as well as their influences on the survival and growth rates of black tiger shrimp reared in controlled tanks. The study was conducted in three stages which were the powdering of the probiotic, observation of the probiotics’ bacteria population, and its application in shrimp rearing. The research was designed in a completely randomized design where 200 shrimps aged PL-12 reared in each tank and applied with three different powder probiotics namely (A) RICA-4, (B) RICA-5, and (C) RICA-1 as the treatments, and (D) without adding probiotic as a control. The result showed that the probiotic population after powdering ranged around 107 cells/mL. The survival rate, body length, and weight of shrimps after 48 days of rearing showed insignificant results (P>0.05) among the treatment. However, RICA-1 had an increase in the total of hemocytes of the shrimps (P<0.05) compared to control. The emergence of moss in the containers became a constraint during the experiment.


2022 ◽  
Vol 52 (1) ◽  
Author(s):  
Thuy Le Thi Minh ◽  
Tran Thanh Truc ◽  
Kazufumi Osako

ABSTRACT: The effect of methods to remove protein content on the properties of glucosamine hydrochloride from the shells of white leg shrimp (Litopenaeus vannamei) and black tiger shrimp (Penaeus monodon) was investigated. Chitin from shrimp shells was obtained by demineralization in 6% HCl for 12h, deproteinization by two different methods (first group soaked in 8% NaOH for 36h and second group treated in Alcalase enzyme at the concentration of 0.2% for 36h). Two group samples were converted to glucosamine hydrochloride by soaking in 36.76% HCl solution for 5h at 85 °C. The results of fourier transform infrared spectroscopy (FTIR), solubility and recovery yield analysis showed that deproteinization methods did not significantly affect the properties of glucosamine hydrochloride. However, glucosamine hydrochloride from white leg shrimp shells contained higher recovery yield and solubility than black tiger shrimp shells.


2019 ◽  
Vol 7 (2) ◽  
pp. 881
Author(s):  
Muhammad Mutakin ◽  
Supono Supono ◽  
Yudha Trinoegraha Adiputra

Shrimp cultured in Purworejo Village begun in the 1980s. Productivity of shrimp farming in this region, had experienced a peak of success in 1998 with an average production of 200 kg / ha with black tiger shrimp (Penaeus monodon) as the main commodity. Productivity decreases to 120kg / ha then occur due to decreasing environmental quality and susceptible post larvae to disease infections. One effort to increase the productivity of ponds can be done by switching the cultivation of black tiger shrimp to Pacific white leg (Litopenaeus vannamei) shrimp. The purpose of this study was to study the feasibility of semiintensive Pacific whiteleg shrimp cultured. This research was carried out in two shrimp farmer groups namely Sido Makmur and Lestari Gemilang located in Purworejo Village, Pasir Sakti District, East Lampung Regency. The type of research used is a case study and uses descriptive tests. The results showed that Pacific white leg shrimp cultured can produce 10,804,45 kg/3 ha and achieve a profit of Rp. 407.025.500 with a net B/C of 1,7. Moreover, black tiger shrimp culturehas reached 725 kg/5 ha with a profit of Rp. 13.660.000 with net B/C of 1,2. This study concluded semiintensive Pacific whiteleg shrimp is profitable compared toblack tiger shrimp cultured. It is also feasible to be developed by the village community.


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