?url_ver=Z39.88-2004&rft_id=1914111045+&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PERFORMA+PERTUMBUHAN%2C+TINGKAT+KELANGSUNGAN+HIDUP+DAN+PERSENTASE+JANTAN+JUVENIL+LOBSTER+AIR+TAWAR+Cherax+quadricarinatus+(Von+Martens%2C+1868)+MELALUI+PERENDAMAN+LARVA+DALAM+EKSTRAK+Tribulus+terrestris+(Linn%2C+1753)+&rft.creator=Ahmad+%2C+Ade+Rifki+&rft.subject=630+Pertanian+dan+teknologi+yang+berkaitan&rft.description=Lobster+air+tawar+(Cherax+quadricarinatus)+berpotensi+besar+untuk+menjadi+produk+unggulan+karena+memiliki+nilai+ekonomis+tinggi+serta+pemeliharaan+yang+sangat+mu-+dah.+Namun%2C+terdapat+kendala+pada+tahap+pembesarannya%2C+dimana+lobster+betina+me-+miliki+pertumbuhan+lebih+lambat+dibandingkan+dengan+lobster+jantan.+Oleh+karena+itu%2C+lobster+jantan+perlu+menjadi+prioritas+untuk+dikembangkan+agar+dapat+memper-+singkat+waktu+budi+daya.+Salah+satu+cara+yang+dapat+dilakukan+untuk+mendapatkan+individu+jantan+adalah+menggunakan+teknologi+pengarahan+kelamin+(sex+reversal)+dengan+Tribulus+terrestris+yang+dapat+meningkatkan+kadar+testosteron+dalam+tubuh.+Penelitian+ini+bertujuan+untuk+mengevaluasi+pengaruh+Tribulus+terrestris+terhadap+performa+pertumbuhan%2C+tingkat+kelangsungan+hidup%2C+dan+persentase+jantan+pada+lobs-+ter+air+tawar+melalui+perendaman+larva.+Penelitian+ini+menggunakan+rancangan+acak+lengkap+(RAL)+yang+terdiri+dari+5+perlakuan+dan+3+ulangan.+Perlakuan+yang+diberikan+yaitu+perendaman+17%CE%B1-metiltestosteron+2+mg%2FL+(P1)%2C+tanpa+ekstrak+Tribulus+terrestris+(ETT)+0+mg%2FL+(P2)%2C+ETT+10+mg%2FL+(P3)%2C+ETT+15+mg%2FL+(P4)%2C+dan+ETT+20+mg%2FL+(P5).+Hasil+penelitian+menunjukkan+bahwa+pemberian+Tribulus+terrestris+pada+larva+lobster+air+tawar+tidak+memberikan+pengaruh+yang+berbeda+nyata+terhadap+performa+partum-+buhan+dan+tingkat+kelangsungan+hidup%2C+namun+memberikan+pengaruh+berbeda+nyata+terhadap+persentase+jantan+dengan+dosis+terbaik+20+mg%2FL+yaitu+sebesar+56%2C22%C2%B11%2C10%25.++%0D%0AKata+kunci%3A+ekstrak+Tribulus+terrestris%2C+lobster+air+tawar%2C+perendaman%2C+sex+reversal+%0D%0A%0D%0AFreshwater+crayfish+(Cherax+quadricarinatus)+has+great+potential+to+become+a+supe-+rior+product+because+it+has+high+economic+value+and+is+very+easy+to+maintenance.+However%2C+there+are+obstacles+at+the+enlargement+stage+of+crayfish+culture%2C+where+fe-+male+have+slower+growth+than+male.+So+that+male+need+to+be+a+priority+to+be+deve-+loped+in+order+to+shorten+the+cultivation+time.+One+way+that+can+be+done+to+get+male+individuals+is+to+use+sex+reversal+technology+with+Tribulus+terrestris+which+can+in-+crease+testosterone+levels+in+the+body.+This+study+aimed+to+evaluate+the+effect+of+Tri-+bulus+terrestris+on+growth+performance%2C+survival+rate+and+percentage+of+males+in+crayfish+by+immersing+the+larvae.+This+study+used+a+completely+randomized+design+(CRD)+consisting+of+5+treatments+and+3+replications.+The+treatments+given+were+im-+mersion+17%CE%B1-methyltestosterone+2+mg%2FL+(P1)%2C+without+Tribulus+terrestris+extract+(ETT)+0+mg%2FL+(P2)%2C+ETT+10+mg%2FL+(P3)%2C+ETT+15+mg%2FL+(P4)%2C+and+ETT+20+mg%2FL+(P5).+The+results+showed+that+the+dipping+of+crayfish+larvae+in+Tribulus+terrestris+did+not+have+a+significantly+different+on+growth+performance+and+survival+rates%2C+but+had+a+significantly+differrent+effect+on+the+percentage+of+males+with+the+best+dose+of+20+mg%2FL+which+was+56.22+%C2%B1+1.10%25.+%0D%0A+Key+words%3A+freshwater+crayfish%2C+immersion%2C+sex+reversal%2C+tribulus+terrestris+extract.+++%0D%0A%0D%0A&rft.publisher=FAKULTAS+PERTANIAN&rft.date=2023-07-21&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F76105%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F76105%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F76105%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Ahmad+%2C+Ade+Rifki+++(2023)+PERFORMA+PERTUMBUHAN%2C+TINGKAT+KELANGSUNGAN+HIDUP+DAN+PERSENTASE+JANTAN+JUVENIL+LOBSTER+AIR+TAWAR+Cherax+quadricarinatus+(Von+Martens%2C+1868)+MELALUI+PERENDAMAN+LARVA+DALAM+EKSTRAK+Tribulus+terrestris+(Linn%2C+1753).++FAKULTAS+PERTANIAN%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F76105%2F