TREATMENT OF VIBRIOSIS DISEASE (Vibrio harveyi) IN VANAME SHRIMP (Litopenaeus vannamei, Boone 1931) USING Avicennia alba LEAVES EXTRACT

Abstract

Avicennia alba is a mangrove plant that often ued by coastal society as a traditional medecine, it is potential to be dveloped as the sources of pharmaceutical. The aim of the research is to examine the effect of Avicennia alba leaves extract various concentrations to Vibrio harveyi infection on vaname shrimp. The addition of the extract is thought to be used as an antibacterial so that it can give effect to the attack of V. harveyi in vaname shrimp. Vaname shrimps (total of 120 shrimps) with a weight of 10±2g/ind were injected intramuscularly with V. harveyi bacteria in 107 CFU/ml density. After the occurrences of clinical symptoms, the shrimps were immersed into A. alba leaves extract with concentration 0 ppm, 150 ppm, 250 ppm, and 350 ppm for 21 days. The results showed that the addition leaves extract can increase shrimp’s survival rate as much as 46.67% and increase the shrimp’s ability to prevent (RPS) V. harveyi infection untill of 70±15%. The mean time of death (MTD) was 106±18.33 hours, it caused there ar active compounds contained such as saponin, tannin, and steroid be suspected antibacterial so that they can protect shrimp from the effect of Vibrio infection damage. Giving a concentration of 250 ppm Avicennia alba leaves extract can treat vaname shrimp which was attacked by V. harveyi better than other treatments.

Water profile of white shrimp (Litopenaeus vannamei) infected with white feces disease (WFD)

“…Based on the clinical signs that appear, the incidence of shrimp death is associated with the presence of white feaces disease (WFD) infection, which is related to the condition of rearing water quality. WFD spreads rapidly through the water, especially in ponds with high stocking densities, so rapid treatment is necessary [9]. Optimal pond water quality will provide living space for shrimp so that they can maximum growth.…”

The Effect of Avicennia marina Leaf Extract Addition To the Artificial Feed On the Growth of Litopenaeus vannamei

“…A completely randomized design (CRD) with 4 treatments and 3 replications were conducted with different white mangrove powder concentrations as follows. Treatment A = No addition of Avicennia marina leaf extract to the feed (control) Treatment B = Adding Avicennia marina leaf extract of 125 ppm to 500 gram feed Treatment C = Adding Avicennia marina leaf extract of 175 ppm to 500 gram feed Treatment D = Adding Avicennia marina leaf extract of 225 ppm to 500 gram feed Those doses were used based on the recommendation of Rusadi et al,(2019) who found the best outcome from the use of 250 ppm added with mangrove leaf extract on the mortality rate of Vanname shrimp.…”

“…The diluted extract was added to the feed through the Spraying method until it was homogeneous. The feed was then administered to the test shrimp with a volume of 3% of the total biomass of the post larva (Rusadi et al, 2019) in 5 feeding times a day at 07.00, 10.00, 13.00, 16.00, and 21.00 WIB (Mahenda, 2021)…”

Peran fintech dalam pengembangan usaha budidaya udang vaname

“…Penyakit white feces disease yang menyerang udang vaname diakibatkan oleh adanya serangan bakteri jenis Vibrio sp.. Gejala klinis pada udang vaname yang terserang penyakit WFD yakni nafsu makan rendah, usus udang yang bewarna putih ataupun kosong, serta feses udang bewarna putih yang mengambang di permukaan perairan (Adam et al 2022). Menurut Rusadi et al (2019) penyebaran penyakit WFD dangat cepat melalui perairan terutama perairan tambak dengan kepadatan yang tinggi. Penelitian Sriurairatana et al (2014) menunjukkan bahwa SR udang vaname mengalami penurunan 20-30% akibat adanya serangan penyakit WFD sehingga produksi udang vaname mengalami penurunan.…”