?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH++EKSTRAK+UBI+JALAR+(Ipomoea+batatas+L.)+DARI+JENIS+DAN+KONSENTRASI+YANG+BERBEDA+TERHADAP+PERTUMBUHAN+BAKTERI+Bacillus+sp+D2.2%0D%0A&rft.creator=M.+ZAINAL+ARIFIN+%2C+1214111043&rft.subject=Pertanian+(+Umum+)&rft.description=Aplikasi+probiotik+merupakan+salah+satu+metode+penanganan+penyakit+bakterial+pada+udang+vaname+Litopenaeus+vannamei.+Penggunaan+probiotik+di+lapangan+sering+terkendala+oleh+sulit+dan+mahalnya+pembuatan+media+probiotik%2C+sehingga+diperlukan+media+alternatif+yang+praktis+dan+lebih+murah.+Penelitian+ini+bertujuan+untuk+menguji+efektivitas+penggunaan+ekstrak+tepung+ubi+putih%2C+ubi+kuning+dan+ubi+ungu+sebagai+media+teknis+pada+konseentrasi+yang+berbeda+terhadap+kepadatan+bakteri+probiotik+strain+D2.2.+Penelitian+ini+menggunakan+RAL+faktorial+dengan+3+faktor+yaitu+jenis+ubi+jalar+putih%2C+kuning%2C+dan+ungu+dengan+masing-masing+pada+taraf+berbeda+yaitu+2%25%2C+3%25%2C+dan+4%25.+Hasil+penelitian+menunjukkan+isolat+bakteri+dapat+tumbuh+baik+pada+semua+perlakuan.+Petumbuhan+bakteri+terjadi+mulai+jam+ke-12+setelah+inokulasi.+Kepadatan+bakteri+yang+ditumbuhkan+pada+media+teknis+meningkat+seiring+dengan+peningkatan+dosis+media+teknis.+Kepadatan+bakteri+yang+tertinggi+terdapat+pada+perlakuan+ubi+unggu+pada+konsentrasi+4%25+sebesar+3%2C036+%C3%97+108+cfu%2FmL.%0D%0A%0D%0AKata+Kunci%3A+Litopenaeus+vannamei%2C+media%2C+isolat%2C+bakteri%2C+D2.2%0D%0A%0D%0A%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AProbiotics+application+is+one+of+the+handling+methods+of+bacterial+diseases+on+shrimp+vaname%2C++Litopenaeus+vannamei.+The+use+of+probiotics+at+the+field+is+often+obstructed+by+the+manufacture+of+the+probiotic+media+which+is+difficult+and+expensive%2C+so+alternative+media+which+is+practical+and+cheaper+is+needed.+This+study+aims+to+examine+the+effectiveness+of+white%2C+yellow%2C+and+purple+sweet+potato+flour+extract+used+as+a+technical+media+at+different+concentrations+on+probiotic+bacteria+strain+D2.2+density.+This+research+used+factorial+RAL+with+3+factors+(white%2C+yellow%2C+and+purple+sweet+potato)+and+with+different+level+(2%25%2C+3%25%2C+and+4%25)+for+each+factors.+The+results+showed+that+the+isolated+bacteria+could+grow+well+in+all+treatments.+The+bacteria+growth+occurred+12+hour+after+inoculation.+The+bacteria+density+which+were+grown+on+technical+media+increased+as+the+increase+of+the+technical+media+dose.+The+highest+bacterial+density+was+3.036+%C3%97+108+cfu%2FmL+and+it+was+found+in+the+treatment+of+sweet+purple+potato+at+4%25+concentration.%0D%0A%0D%0AKeywords%3A+Litopenaeus+vannamei%2C+media%2C+isolate%2C+bacteria%2C+D2.2&rft.publisher=FAKULTAS+PERTANIAN&rft.date=2017-12-14&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F29941%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F29941%2F2%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F29941%2F3%2FSKRIPSI%2520FULL.pdf&rft.identifier=++M.+ZAINAL+ARIFIN+%2C+1214111043++(2017)+PENGARUH+EKSTRAK+UBI+JALAR+(Ipomoea+batatas+L.)+DARI+JENIS+DAN+KONSENTRASI+YANG+BERBEDA+TERHADAP+PERTUMBUHAN+BAKTERI+Bacillus+sp+D2.2.++FAKULTAS+PERTANIAN%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F29941%2F