?url_ver=Z39.88-2004&rft_id=2054111002&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENAPISAN+DAN+IDENTIFIKASI+BAKTERI+KANDIDAT+PROBIOTIK%0D%0ADARI+DANAU+RANAU%2C+LAMPUNG+BARAT+SEBAGAI+AGEN%0D%0ABIOKONTROL+TERHADAP+BAKTERI+PATOGEN&rft.creator=SHABRINA+AISHA+%2C+PUTRI+&rft.subject=600+Teknologi+(ilmu+terapan)&rft.subject=630+Pertanian+dan+teknologi+yang+berkaitan&rft.description=Kegiatan+budidaya+ikan+air+tawar+merupakan+salah+satu+komoditas+penting%0D%0Adi+Indonesia%2C+termasuk+di+Danau+Ranau.+Salah+satu+tantangan+dalam+budidaya%0D%0Aadalah+serangan+penyakit+akibat+infeksi+bakteri.+Oleh+karena+itu%2C+perlu+upaya+biokontrol%0D%0Auntuk+mengatasi+bakteri+patogen+dan+mendukung+keberlanjutan+budidaya%0D%0Aikan+air+tawar.+Tujuan+dari+penelitian+ini+untuk+memperoleh+bakteri+kandidat+probiotik%0D%0Adari+perairan+Danau+Ranau+Lampung+Barat+sebagai+agen+biokontrol+terhadap%0D%0Abakteri+patogen.+Penelitian+ini+menggunakan+metode+eksploratif+dengan+pengambilan%0D%0Asampel%2C+isolasi+bakteri%2C+uji+antibakteri%2C+identifikasi+bakteri.+Hasil%0D%0Apenelitian+menunjukan+bakteri+yang+diisolasi+dari+Danau+Ranau+diperoleh+12%0D%0Aisolat.+Dua+belas+isolat+menghasilkan+aktivitas+antibakteri+pada+uji+antibakteri%0D%0Ayang+ditunjukkan+dengan+terbentuknya+zona+hambat+di+sekeliling+kertas+cakram.%0D%0AIsolat+bakteri+ANR.1+menunjukkan+aktivitas+antagonis+terhadap+ketiga+bakteri%0D%0Apatogen+dengan+zona+hambat+terbesar+yaitu+7%2C7+mm+pada+bakteri+patogen%0D%0AAeromonas+hydrophila%2C+7%2C3+mm+pada+bakteri+patogen+Streptococcus+agalactiae%2C%0D%0Adan+7%2C5+mm+pada+bakteri+patogen+Staphylococcus+aureus.+Berdasarkan+identifikasi%0D%0Abakteri+melalui+uji+makroskopis%2C+mikroskopis%2C+biokimia%2C+dan+molekuler%2C+isolat%0D%0Abakteri+ANR.1+teridentifikasi+Bacillus+thuringiensis+ANR.1+dengan+presentase%0D%0A99%2C73%25.+Bacillus+thuringiensis+ANR.1+memiliki+potensi+sebagai+kandidat%0D%0Aprobiotik+untuk+digunakan+sebagai+agen+biokontrol+dalam+menghambat%0D%0Apertumbuhan+bakteri+patogen.%0D%0AKata+kunci+%3A+Agen+Biokontrol%2C+Bacillus+thuringiensis%2C+Bakteri+Patogen%2C+Penapisan%2C%0D%0AProbiotik%0D%0A%0D%0AFreshwater+fish+farming+activities+are+one+of+the+important+commodities+in%0D%0AIndonesia%2C+including+in+Lake+Ranau.+One+of+the+challenges+in+cultivation+is+the%0D%0Aattack+of+disease+due+to+bacterial+infection.+Therefore%2C+biocontrol+efforts+are%0D%0Aneeded+to+overcome+pathogenic+bacteria+and+support+the+sustainability+of%0D%0Afreshwater+fish+farming.+The+purpose+of+this+study+was+to+obtain+probiotic%0D%0Acandidate+bacteria+from+the+waters+of+Lake+Ranau+West+Lampung+as+a+biocontrol%0D%0Aagent+against+pathogenic+bacteria.+This+study+used+explorative+method+with%0D%0Asampling%2C+isolation+of+bacteria%2C+antibacterial+test%2C+identification+of+bacteria.+The%0D%0Aresults+showed+that+bacteria+isolated+from+Lake+Ranau+obtained+12+isolates.%0D%0ATwelve+isolates+produced+antibacterial+activity+in+the+antibacterial+test+indicated%0D%0Aby+the+formation+of+an+inhibition+zone+around+the+disc+paper.+Bacterial+isolates%0D%0AANR.1+showed+antagonistic+activity+against+the+three+pathogenic+bacteria+with+the%0D%0Alargest+inhibition+zone+of+7.7+mm+in+pathogenic+bacteria+Aeromonas+hydrophila%2C%0D%0A7.3+mm+in+pathogenic+bacteria+Streptococcus+agalactiae%2C+and+7.5+mm+in%0D%0Apathogenic+bacteria+Staphylococcus+aureus.+Based+on+bacterial+identification%0D%0Athrough+macroscopic%2C+microscopic%2C+biochemical%2C+and+molecular+tests%2C+bacterial%0D%0Aisolate+ANR.1+was+identified+as+Bacillus+thuringiensis+ANR.1+with+a+percentage%0D%0Aof+99.73%25.+Bacillus+thuringiensis+ANR.1+has+potential+as+a+probiotic+candidate+for%0D%0Ause+as+a+biocontrol+agent+in+inhibiting+the+growth+of+pathogenic+bacteria.%0D%0AKeywords%3A+Bacillus+thuringiensis%2C+Biocontrol+Agent%2C+Pathogenic+Bacteria%2C%0D%0AScreening&rft.publisher=FAKULTAS+PERTANIAN&rft.date=2025-03-21&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F89192%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F89192%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F89192%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++SHABRINA+AISHA+%2C+PUTRI+++(2025)+PENAPISAN+DAN+IDENTIFIKASI+BAKTERI+KANDIDAT+PROBIOTIK+DARI+DANAU+RANAU%2C+LAMPUNG+BARAT+SEBAGAI+AGEN+BIOKONTROL+TERHADAP+BAKTERI+PATOGEN.++FAKULTAS+PERTANIAN%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F89192%2F