?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=RASIO+KELAMIN%2C+PERFORMA+PERTUMBUHAN%2C+DAN+TINGKAT%0D%0AKELANGSUNGAN+HIDUP+BENIH+IKAN+GABUS+Channa+striata%0D%0A(BLOCH%2C+1793)+DENGAN+PENAMBAHAN+HORMON+ESTRADIOL-17%CE%B2%0D%0A%0D%0ADAN+PADAT+TEBAR+BERBEDA&rft.creator=Widya+%2C+Angga+Fitriliyana%09&rft.subject=630+Pertanian+dan+teknologi+yang+berkaitan&rft.description=Permasalahan+yang+sering+terjadi+dalam+budi+daya+ikan+gabus+di+antaranya+per-%0D%0Atumbuhan+lambat%2C+mortalitas+yang+tinggi%2C+dan+pola+reproduksinya+belum+diketahui%0D%0A%0D%0Adengan+jelas.+Salah+satu+upaya+untuk+mengevaluasi+pola+reproduksi+ikan+gabus%0D%0Aadalah+dengan+pemberian+hormon+estradiol-17%CE%B2+dan+padat+tebar+berbeda.+Tujuan%0D%0A%0D%0Apenelitian+ini+untuk+menguji+pemberian+hormon+estradiol-17%CE%B2+secara+oral+dan+pa-%0D%0Adat+tebar+berbeda+terhadap+rasio+kelamin%2C+pertumbuhan+dan+tingkat+kelangsungan%0D%0A%0D%0Ahidup+benih+ikan+gabus.+Penelitian+ini+dilakukan+dengan+menggunakan+rancangan%0D%0Aacak+lengkap+Faktorial+(RALF)%2C+dengan+9+perlakuan+%3A+Faktor+hormon-17%CE%B2+dengan%0D%0A3+taraf+(0%2C+15%2C+30+dan+30+mg%2Fkg+pakan)+dan+faktor+padat+tebar+dengan+3+taraf+(2%2C+8%2C%0D%0A%0D%0A16+ekor%2FL)+dengan+ulangan+sebanyak+3+kali.+Benih+ikan+gabus+yang+digunakan+se-%0D%0Abanyak+2.340+berumur+6+minggu+dengan+panjang+rata-rata+6%2C92+%C2%B10%2C49+cm+dan+be-%0D%0Arat+2%2C38+%C2%B10%2C68+g+yang+dipelihara+selama+45+hari+dan+dilakukan+sampling+setiap+14%0D%0A%0D%0Ahari+untuk+mengamati+pertumbuhan+bobot+dan+panjang.+Sedangkan+untuk+persen-%0D%0Atase+jenis+kelamin+ikan+diamati+pada+akhir+pemeliharaan.+Hasil+penelitian+menun-%0D%0Ajukkan+bahwa+rasio+kelamin+ikan+gabus+betina+%3A+jantan+pada+faktor+estradiol-17%CE%B2%0D%0A%0D%0Adosis+15+mg%2Fkg+adalah+3+%3A1+dan+faktor+padat+tebar+2+ekor%2FL+adalah+2+%3A+1.+Estradiol-%0D%0A17%CE%B2+dosis+30+mg%2Fkg+berpengaruh+yang+berbeda+nyata+terhadap+pertumbuhan+bobot%0D%0A%0D%0Amutlak%2C+pertumbuhan+panjang+mutlak%2C+laju+pertumbuhan+spesifik%2C+rasio+konversi%0D%0A%0D%0Apakan+dan+tingkat+kelangsungan+hidup+ikan.+Adapun+interaksi+antara+faktor+estra-%0D%0Adiol-17%CE%B2+dan+padat+tebar+berbeda+memberikan+pengaruh+terhadap+pertumbuhan%0D%0A%0D%0Abobot+mutlak%2C+pertumbuhan+panjang+mutlak%2C+laju+pertumbuhan+spesifik%2C+rasio+kon-%0D%0Aversi+pakan%2C+dan+tingkat+kelangsungan+hidup.%0D%0A%0D%0AKata+kunci%3A+Ikan+gabus%2C+estradiol%2C+padat+tebar%2C+rasio+kelamin%2C+pertumbuhan.%0D%0A%0D%0AThe+problems+that+often+occur+in+snakehead+fish+farming+include+slow+growth%2C%0D%0Ahigh+mortality%2C+and+reproductive+patterns+that+are+not+yet+clearly+known.+One+of%0D%0A%0D%0Athe+efforts+to+evaluate+the+reproductive+pattern+of+snakehead+is+by+giving+estra-%0D%0Adiol-17%CE%B2+hormone+and+different+stocking+density.+The+purpose+of+this+study+we-%0D%0Are+to+test+the+oral+administration+of+estradiol-17%CE%B2+hormone+and+different+stoc-%0D%0Aking+densities+on+sex+ratio%2C+growth+and+survival+rate+of+snakehead+fry.+This+stu-%0D%0Ady+was+conducted+using+a+completely+randomized+design+factorial+(RALF)%2C%0D%0A%0D%0Awith+9+treatments%3A+Hormone-17%CE%B2+factor+with+3+levels+(0%2C+15%2C+30+and+30+mg%2Fkg%0D%0A%0D%0Afeed)+and+stocking+density+factor+with+3+levels+(2%2C+8%2C+16+fish%2FL)+with+3+replica-%0D%0Ations.+The+snakehead+fry+used+were+2%2C340+6+weeks+old+with+an+average+length%0D%0A%0D%0Aof+6.92+%C2%B1+0.49+cm+and+weight+of+2.38+%C2%B1+0.68+g+which+were+reared+for+45+days%0D%0A%0D%0Aand+sam-pled+every+14+days+to+observe+the+growth+of+weight+and+length.+Mean-%0D%0Awhile%2C+the+sex+percentage+of+fish+was+observed+at+the+end+of+rearing.+The+results%0D%0A%0D%0Ashowed+that+the+sex+ratio+of+female%3A+male+on+the+estradiol-17%CE%B2+factor+at+a+dose%0D%0A%0D%0Aof+15+mg%2Fkg+was+3%3A+1+and+the+stocking+density+factor+of+2+ind+%2FL+was+2%3A+Estra-%0D%0Adiol-17%CE%B2+dose+of+30+mg%2Fkg+had+a+significantly+different+effect+on+absolute+wei-%0D%0Aght+growth%2C+absolute+length+growth%2C+specific+growth+rate%2C+feed+conversion+ratio%2C%0D%0A%0D%0Aand+fish+survival+rate.+The+interaction+between+estradiol-17%CE%B2+and+stocking+den-%0D%0Asity+factors+had+different+effects+on+absolute+weight+growth%2C+absolute+length%0D%0A%0D%0Agrowth%2C+specific+growth+rate%2C+feed+conversion+ratio%2C+and+survival+rate.%0D%0A%0D%0AKeywords%3A+Snakehead+fish%2C+estradiol%2C+stocking+density%2C+sex+ratio%2C+growth.&rft.publisher=FAKULTAS+PERTANIAN&rft.date=2023-12-29&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F87191%2F1%2FWIDYA%2520ANGGA%2520F-SKRIPSI-ABSTRAK%2520-%2520Widya%2520fitriliyana.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F87191%2F2%2FWIDYA%2520ANGGA%2520F-SKRIPSI-FULL%2520SKRIPSI%2520%2528TANPA%2520LAMPIRAN%2529%2520-%2520Widya%2520fitriliyana.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F87191%2F3%2FWIDYA%2520ANGGA%2520F-SKRIPSI-TANPA%2520PEMBAHASAN%2520%2528TANPA%2520LAMPIRAN%2529%2520-%2520Widya%2520f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