Loose Shell Syndrome (LSS) in Litopenaeus vannamei grow-out Ponds and its Effect on Growth and Production

Raja, Kavitha

doi:10.4172/2150-3508.1000151

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…The growth allometry of stunted shrimp in the present study is in contrast with the findings reported in previous studies on length-weight relationship of diseased penaeid shrimp. In 2015, a study on L. vannamei with loose shell syndrome revealed that, the affected shrimp showed negative allometry growth (Raja et al, 2015). Diseased P. monodon with loose shell syndrome was also reported to have negative allometric growth pattern (Gopalakrishnan et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

Comparative study on length-weight relationship and Vibrio composition between normal and stunted growth in pond-cultured whiteleg shrimp, Litopenaeus vannamei

al.¹

2022

Egypt. J. of Aquatic Biolo. and Fish.

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Section: Discussionmentioning

confidence: 99%

Comparative study on length-weight relationship and Vibrio composition between normal and stunted growth in pond-cultured whiteleg shrimp, Litopenaeus vannamei

al.¹

2022

Egypt. J. of Aquatic Biolo. and Fish.

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“…Moribund, weak shrimp with soft shell swim near dikes of the ponds appear in shiny light pink colour and results in progressive mortality. The mineral deficiency, poor Nutrition and water quality and high loads of pathogenic bacteria and other disease causes of WFS may cause the loose shell syndrome [16,17] . Running Mortality Syndrome (RMS) was observed more in Guntur, Krishna districts and less in West Godavari and East Godavari (Fig.…”

Section: IIImentioning

confidence: 99%

A Study on Diseases Affecting Litopenaeus vannamei Farming in Coastal Districts of Andhra Pradesh, India

Venkateswarlu¹

2019

IJRASET

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Andhra Pradesh stands top in the aquaculture production in India and shrimp farming is one of the major sources of income. Now-a-days shrimp culture is facing many problems among them disease mitigation became major hurdle for the shrimp farmers. A study was done to evaluate the diseases affecting L.vannamei farming in coastal districts of Andhrapradesh, i.e., Gutur, Krishna, West Godavari and East Godavari. The summer crop was considered for the study during February -June 2019. The diseases that are responsible for huge losses in L. vannamei culture was found to be White Spot Syndrome Virus (WSSV), White Faecal Syndrome (WFS), Black Gill Disease (BGD), Loose Shell Syndrome (LSS), Running Mortality Syndrome (RMS), and Enterocytozoon Hepatopenaei (EHP) of all the selected 4 districts of the Andhra Pradesh. About 65% culture ponds of Guntur district, 69% in Krishna and 40% in West Godavari and 50% in East Godavari districts were affected by diseases. It was observed that, more disease related problems observed during the summer crop in all selected areas. The farms which implemented biosecurity measures, and maintained without any Dissolved Oxygen (DO) problems, were found to contain less diseases. Therefore it is suggested that by practicing better management practices (BMP) by following biosecurity measures, diseases can be prevented.

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“…Pada bagian tubuh udang vaname tidak menunjukkan adanya perubahan warna tubuh maupun rusaknya Diterima/submitted:23 Mei 2019 Disetujui/accepted:11 Juni 2019 96 karapas. Menurut Raja et al (2015), udang vaname yang terindikasi serangan patogen akan berubah warna antara putih pucat sampai kemerahan dan rusaknya karapas yang berfungsi sebagai pelindung tubuh udang vaname.…”

Section: Hasil Dan Pembahasanunclassified

UJI PATOGENITAS BAKTERI Pseudomonas sp. PADA UDANG VANAME (Litopanaeus vannamei) SEBAGAI KANDIDAT PROBIOTIK

Pahlawi

2019

JAFH

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AbstrakPenelitian ini bertujuan mengetahui tingkat kematian udang vaname yang diinfeksi bakteri Pseudomonas sp. Bakteri Pseudomonas sp. diisolasi dari sedimen tambak udang. Uji patogenitas menggunakan udang vaname (7-9 gram) yang diinfeksi bakteri Pseudomonas sp. dengan kepadatan 10 2 , 10 4 , 10 6 , 10 8 sel/ml secara intramuscular sebanyak 0,1 ml/ekor. Perlakuan kontrol diinfeksi menggunakan NaCl fisiologis sebanyak 0,1 ml/ekor. Tingkat mortalitas dan gejala klinis diamati setap 6 jam pada 24 jam pertama dan selanjutnya selama 24 jam hingga 10 hari. Hasil yang diperoleh dari uji patogenitas bakteri Pseudomonas sp. pada udang vaname menunjukkan tingkat kematian sebesar 0% pasca infeksi. Hal ini menunjukkan bahwa bakteri Pseudomonas sp. tidak menyebabkan kematian pada udang vaname. Gambaran gejala klinis yang ditunjukkan berupa hepatopankreas berwarna hijau kehitaman dengan tekstur yang padat dan menunjukkan kenampakan yang sama dengan perlakuan kontrol. Warna tubuh udang vaname setelah diinfeksi bakteri Pseudomonas sp. menunjukkan gambaran yang sama dengan kontrol yaitu berwarna putih transparan. Karapas dan ekor udang vaname setelah diinfeksi menunjukkan tidak adanya kerusakan yang disebabkan oleh infeksi bakteri Pseudomonas sp., gambaran tersebut menunjukkan kenampakan yang sama dengan perlakuan kontrol. Hal ini menunjukkan bahwa bakteri Pseudomonas sp. tidak patogen terhadap udang vaname dan infeksi bakteri Pseudomonas sp. tidak berpengaruh terhadap perubahan morfologi makroskopis dan tingkah laku. AbstractThis research aims to determine the mortality of vannamei shrimp infected by Pseudomonas sp. bacteria isolated from sediment of shrimp pond. Pathogenicity test was by using vannamei shrimp (7-9 grams) with a density of 10 2 , 10 4 , 10 6 , 10 8 cells/ml intramuscularly. The control treatment was infected by using a physiological NaCl of 0.1 ml. The rate of mortality and clinical symptoms were observed for the first of 6 hours for 10 days. The results from the pathogenic test of Pseudomonas sp. in vannamei showed that 0% post infection of mortality rate. This was indicating that the Pseudomonas sp. bacteria did not cause death in vannamei shrimp. The clinical symptoms showed in the form of blackish-green hepatopancreas with a dense texture. That clinical symptom had the same appearance as the control treatment. The color of vannamei body showed a white color and so with the control treatment. Carapace and tail showed no damage to treatment and control treatment. This indicated that the bacteria Pseudomonas sp. did not cause death to vannamei shrimp and bacterial infections. Pseudomonas sp. did not affect morphological changes in macroscopic and behavior.

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Loose Shell Syndrome (LSS) in Litopenaeus vannamei grow-out Ponds and its Effect on Growth and Production

Cited by 3 publications

References 7 publications

Comparative study on length-weight relationship and Vibrio composition between normal and stunted growth in pond-cultured whiteleg shrimp, Litopenaeus vannamei

Comparative study on length-weight relationship and Vibrio composition between normal and stunted growth in pond-cultured whiteleg shrimp, Litopenaeus vannamei

A Study on Diseases Affecting Litopenaeus vannamei Farming in Coastal Districts of Andhra Pradesh, India

UJI PATOGENITAS BAKTERI Pseudomonas sp. PADA UDANG VANAME (Litopanaeus vannamei) SEBAGAI KANDIDAT PROBIOTIK

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