{"id":736,"date":"2019-07-31T08:00:46","date_gmt":"2019-07-31T11:00:46","guid":{"rendered":"http:\/\/pressreleases.scielo.org\/en\/?p=736"},"modified":"2023-03-28T13:39:32","modified_gmt":"2023-03-28T16:39:32","slug":"is-there-an-effective-way-to-treat-bacterial-diseases-in-fish-without-resistance-to-antibiotics","status":"publish","type":"post","link":"https:\/\/pressreleases.scielo.org\/en\/2019\/07\/31\/is-there-an-effective-way-to-treat-bacterial-diseases-in-fish-without-resistance-to-antibiotics\/","title":{"rendered":"Is there an effective way to treat bacterial diseases in fish without resistance to antibiotics?"},"content":{"rendered":"

By Maria Luiza De Grandi and Nat\u00e1lia Martins Flores, Journalists of Ci\u00eancia Rural journal, and Guerino Bandeira Junior, ter and PhD student in Pharmacology Applied to Animal Production, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil<\/strong>\"\"<\/a><\/p>\n

Can essential oils be effective in treating fish disease? Based on this question, researchers from the Federal University of Santa Maria (UFSM), in partnership with the Federal University of Western Par\u00e1 (UFOPA), tested the antimicrobial activity of the essential oil extracted from the Lippia origanoides<\/em> plant in Jundia<\/em> fish. The article “Essential plant oils against bacteria isolated from fish: an in vitro<\/em> screening and in vivo<\/em> efficacy of Lippia origanoides<\/em>” was published in the journal Ci\u00eancia Rural<\/em> (vol. 49, no. 6).<\/p>\n

The researchers conducted an in vivo<\/em> assay with 120 fish. They evaluated the antibacterial activity of essential oils against bacteria isolated from kidneys and skin lesions of naturally sick fish. The essential oil of Lippia organoides<\/em> presented a therapeutic success rate of 58.33% against experimentally induced aeromonose in silver catfish.<\/p>\n

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Image: BANDEIRA JUNIOR, G.<\/i><\/p><\/div>\n

Figure 1. Comparison between a healthy fish and an infected fish<\/strong><\/p>\n

According to the researcher Guerino Bandeira Junior, the study brings advances to fish production by contributing to the discovery of new molecules with antibacterial activity. The essential oil tested can be a possible alternative to treat bacterial infections such as aeromonose in fish, a disease that affects world aquaculture. “There are few legalized antibacterial drugs for use in aquaculture and many bacterial strains are resistant to them, which requires the study of new molecules,” says the researcher.<\/p>\n

Other similar researches also contribute to solving this issue by testing essential oils from other plants. The research group coordinated by Professor Bernardo Baldisserotto has recently developed several works in this scope. Some of them tested the antibacterial potential of phytochemicals (Bandeira Junior et al., 2018) and the essential oils of Ocimum gratissimum<\/em> and Hesperozygis ringens<\/em> in aquaculture (Bandeira Junior et al., 2017).<\/p>\n

References<\/h3>\n

BANDEIRA JUNIOR, G., et al<\/em>. Antibacterial potential of phytochemicals alone or in combination with antimicrobials against fish pathogenic bacteria. Journal of Applied Microbiology<\/em> [online]. 2018, vol. 125, no. 3, pp. 655-665, e-ISSN: 1365-2672 [viewed 31 July 2019]. DOI: 10.1111\/jam.13906<\/a>. Available from: https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/29741243<\/a><\/p>\n

BANDEIRA JUNIOR, G., et al<\/em>. Potential uses of Ocimum gratissimum and Hesperozygis ringens essential oils in aquaculture. Industrial Crops and Products<\/em> [online]. 2017, vol. 97, pp. 484-491, \u200eISSN: 0926-6690 [viewed 31 July 2019]. DOI: 10.1016\/j.indcrop.2016.12.040<\/a>. Available from: https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0926669016308706<\/a><\/p>\n

To read the article, access it<\/h3>\n

BANDEIRA JUNIOR, G., et al<\/em>. Plant essential oils against bacteria isolated from fish: an in vitro<\/em> screening and in vivo<\/em> efficacy of Lippia origanoides<\/em>. Cienc. Rural<\/em> [online]. 2019, vol. 49, no. 6, e20190064, ISSN: 0103-8478 [viewed 31 July 2019]. DOI: 10.1590\/0103-8478cr20190064<\/a>. Available from: http:\/\/ref.scielo.org\/qqpqhg<\/a><\/p>\n

External links<\/h3>\n

Ci\u00eancia Rural \u2013 CR: <http:\/\/www.scielo.br\/cr<\/a>><\/p>\n","protected":false},"excerpt":{"rendered":"

The expansion of aquaculture increasingly exposes fish to diseases such as aeromonose caused by the bacteria Aeromonas hydrophila<\/i>. To treat this bacterial infection, researchers tested the antimicrobial activity of the essential oil extracted from the Lippia origanoides<\/i> plant. Results were obtained by an in vivo<\/i> assay with 120 fish. …<\/span> Read More →<\/span><\/a><\/span><\/p>\n","protected":false},"author":106,"featured_media":739,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[3,20,12],"tags":[192,21],"class_list":["post-736","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-agricultural-sciences","category-cr","category-press-releases","tag-agronomy","tag-ciencia-rural"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/pressreleases.scielo.org\/en\/wp-json\/wp\/v2\/posts\/736","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressreleases.scielo.org\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pressreleases.scielo.org\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pressreleases.scielo.org\/en\/wp-json\/wp\/v2\/users\/106"}],"replies":[{"embeddable":true,"href":"https:\/\/pressreleases.scielo.org\/en\/wp-json\/wp\/v2\/comments?post=736"}],"version-history":[{"count":2,"href":"https:\/\/pressreleases.scielo.org\/en\/wp-json\/wp\/v2\/posts\/736\/revisions"}],"predecessor-version":[{"id":741,"href":"https:\/\/pressreleases.scielo.org\/en\/wp-json\/wp\/v2\/posts\/736\/revisions\/741"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pressreleases.scielo.org\/en\/wp-json\/wp\/v2\/media\/739"}],"wp:attachment":[{"href":"https:\/\/pressreleases.scielo.org\/en\/wp-json\/wp\/v2\/media?parent=736"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pressreleases.scielo.org\/en\/wp-json\/wp\/v2\/categories?post=736"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pressreleases.scielo.org\/en\/wp-json\/wp\/v2\/tags?post=736"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}