Molting is one of the most important biological processes in shrimp growth and development. All shrimp undergo cyclic molting periodically to shed and replace their exoskeletons. This process is essential for growth, metamorphosis, and reproduction in shrimp. However, the molecular mechanisms underlying shrimp molting remain poorly understood. In this study, we investigated global expression ch...

Udang Vannamei (Littopenaeus vannamei) atau dikenal sebagai udang putih merupakan biota yang banyak dibudidayakan di Indonesia karena memiliki nilai ekonomis tinggi. Budidaya konvensional pada vannamei seringkali identik dengan pengolahan limbah kurang baik, dimana budidaya dibuang langsung ke perairan sehingga menyebabkan penurunan kualitas air. Penelitian ini menggunakan 2 sistem berbeda yait...

ABSTRAK Penggunaan antibiotik pada budidaya udang masih dilakukan. Antibiotik yang sering digunakan yaitu kloramfenikol merupakan berspektrum luas dalam aktivitas untuk melawan bakteri aerobik, anaerobik, dan fungi. Tujuan dari peneltian ini adalah mengetahui adanya kandungan kadar vannamei. Metode metode ELISA (Enzym link immunosorbent assay) menganalisis Hasil penelitian diperoleh terdapat se...

The total haemocyte count (THC), phenoloxidase activity, respiratory burst, superoxide dismutase (SOD) activity, phagocytic activity and clearance efficiency in response to pathogen Vibrio alginolyticus were measured when the white shrimp Litopenaeus vannamei (18.4 +/- 1.2 g) were injected individually with noradrenaline at 10(-8), 10(-7) and 10(-6) mol shrimp(-1). For the shrimp that received ...

Presumptive systemic streptococcal infections were detected histologically in farmed Litopenaeus vannamei juveniles submitted from a Latin American country and the bacteria isolated. Characterization work demonstrated that the Gram-positive cocci form chains, grow aerobically and anaerobically, are oxidase- and catalase-negative, non-hemolytic, non-motile, Lancefield Group B positive and PCR po...

The total haemocyte count (THC), phenoloxidase activity, respiratory burst, superoxide dismutase (SOD) activity, phagocytic activity and clearance efficiency in response to pathogen Vibrio alginolyticus were measured when the white shrimp Litopenaeus vannamei (20.0+/-1.5 g) were injected individually with dopamine at 10(-8), 10(-7) and 10(-6)mol shrimp(-1), respectively. For the shrimp that rec...

Optimal growth of shrimp and harvest in a pond is strongly influenced by water quality because this common thing but it cannot be denied that also an important thing. The combination physicochemical parameters biological indicators has become classic way studying quality. Phytoplankton bioindicator affects the productivity vannamei ponds. Currently, farming activities are intensive. This study ...

Shrimp is one of commodity that has a great demand by consumers both domestically and abroad as an export commodity. There are 2 types shrimp cultivated in North Sumatra, namely Vannamei tiger prawns. Cultivation grown rapidly, replacing prawns' cultivation. The objective the study to analyse affecting production factors for cultivating shrimp. research location was determined purposively Medan...