K. Mahardika, Indah Mastuti, S. Sudewi, Y. Asih, A. Muzaki, I. Giri
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引用次数: 3

摘要

beta nodavirus是VNN(神经坏死)和GSDIV感染的病原体(grouper睡疹,巨细胞病毒属的异化)是一种导致印尼幼虫和小鱼死亡人数升高的疾病。预防病毒感染成为鱼类养殖的首要任务。这项研究的目的是研究bivalen疫苗在防止VNN和GSDIV病毒感染、保护利奥帕德斯白斑鱼的幼虫方面的有效性。5毫升的bivalen疫苗(VNN和GSDIV蛋白疫苗与1:1 - v/v的比例结合),将生物结合成30升天然Rotifera和蒿素饲料(2×104个单独的/mL)。石斑鱼幼虫中的疫苗应用是通过5-24天的天然Rotifera饲料和25-50天的青蒿素。研究结果表明,bivalen疫苗对石斑鱼幼虫(长:1.8 - 2.2厘米[1.8 - 2.2厘米]和sintasan: 105% - 4.07%)的生长和再生没有影响。对VNN和GSDIV的测试结果显示,这种疫苗可以诱导幼虫免疫基因(MHC-I)。作为VNN的坏死特工和GSDIV感染(沉睡性贫血,巨细胞病毒属的孤立)有高死亡率。这种病毒在grouper和鲈鱼文化中的预防已经成为国家优先事项之一。这项研究的目的是研究预防VNN和GSDIV的疫苗的效力。bivalent疫苗的应用(一种用1:1的饮食、Rotifera和青蒿素进行生物抑制,用30毫升的自然饮食(2×104磅)来完成。Vaccines是在禁令结束后5-24天通过Rotifera和25-50天通过青蒿素。结果表明,bivalent vaccine并不影响狼溪鳟鱼的生长和生存比率(总length: 1.8-2.2厘米,准备金率:1.051% -4.07%)。VNN和GSDIV测试的挑战显示,疫苗产生的基因与MHC-I相关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
APLIKASI VAKSIN BIVALEN (VNN dan GSDIV) PADA PEMELIHARAAN LARVA Ikan Kerapu Sunu, Plectropomus leopardus
Beta-nodavirus sebagai agen penyebab VNN (virus nervous necrosis) dan infeksi GSDIV (grouper sleepy disease iridovirus, isolat dari genus Megalocytivirus) merupakan penyakit yang menyebabkan mortalitas yang tinggi pada larva dan juvenil ikan kerapu dan kakap di Indonesia. Pencegahan infeksi virus tersebut menjadi prioritas utama dalam budidaya ikan tersebut. Tujuan dari penelitian ini adalah untuk mengetahui efektivitas vaksin bivalen dalam mencegah infeksi virus VNN dan GSDIV pada pemeliharaan larva ikan kerapu sunu, Plectropomus leopardus. Sebanyak 5 mL vaksin bivalen (kombinasi antara vaksin protein rekombinan VNN dan GSDIV dengan rasio 1:1 v/v) di bio-enkapsulasi ke dalam 30 liter pakan alami Rotifera dan Artemia (2 x 104 individu/mL). Aplikasi vaksin pada larva ikan kerapu sunu dilakukan melalui pakan alami Rotifera dari umur 5-24 hari dan Artemia dari umur 25-50 hari. Hasil penelitian menunjukkan bahwa vaksin bivalen tidak berpengaruh terhadap pertumbuhan dan sintasan larva kerapu sunu (panjang: 1,8-2,2 cm dan sintasan: 1,05%-4,07%). Hasil uji tantang dengan VNN dan GSDIV menunjukkan bahwa vaksin tersebut dapat menginduksi gen imunitas larva (MHC-I).Beta-nodavirus as the causative agent of VNN (viral nervous necrosis) and GSDIV infection (grouper sleepy disease iridovirus, isolate from the genus Megalocytivirus) has caused high mortality of cultured grouper and sea bass larvae and juvenile in Indonesia. The prevention of this virus infection on grouper and sea bass culture has become one of the national priority. The purpose of this research was to study the effectiveness of the bivalent vaccine in preventing VNN and GSDIV infections to seed of coral trout grouper, Plectropomus leopardus reared in hatchery. Applications of bivalent vaccine (a combination of protein recombinant VNN and GSDIV vaccine with a ratio of 1:1 v/v) were done by bio-encapsulation using the fish natural diet, Rotifera and Artemia, with a dose of 5 mL vaccine in 30 liters of natural diet (2 x 104 ind./mL). Vaccines were given once a day from the larval age of 5-24 days after hatching using Rotifera and 25-50 day after hatching using Artemia. The results showed that the bivalent vaccine did not influence the growth and survival rate of coral trout grouper larvae (ranged of total length: 1.8-2.2 cm and survival rate: 1.05%-4.07%). The challenge test with VNN and GSDIV revealed that the vaccine had positively induced gene related immunity of larvae MHC-I.
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