Cultivation of the redtail culter C

Cultivation of the redtail culter Culter mongolicus has been increasing substantially over the last decade along the
angtze River basin; such increases in production lead to increased juvenile transportation. However, redtail culter
juveniles have high transport mortality rates due to a strong stress response that is exacerbated by the accumulation
toxic metabolic waste. Through a 24-h simulated transport experiment (sampling every 6 h), we assessed effects of
tricaine methanesulfonate (MS-222) at 10 mg/L of water, 20 mg/L, and 40 mg/L on redtail culter survival and water
quality parameters, and similarly we assessed clove oil at 2 mg/L of water, 5 mg/L, and 10 mg/L. None of the anesthetics
significantly improved water quality during the initial 6–12 h of the experiment. However, MS-222 treatments at the
first 12–24 h of the experiment had significantly higher dissolved oxygen (DO), ammonia, and pH than the control
t failed to decrease un-ionized ammonia content. In contrast, the clove oil treatment significantly reduced the
un-ionized ammonia but failed to improve DO and pH at 12–24 h. The improvements in water quality were reflected
cumulative mortality, MS-222 and clove oil anesthetic treatments having significantly lower cumulative mortality
than the control at 12–24 h. The MS-222 and clove oil slowed water quality deterioration, ensured a better transport
vironment, and improved juvenile survival during transportation. We recommend 5 mg/L clove oil be used when
transporting juvenile redtail culters because that concentration improves fish survival while keeping cost low.

Hasil (Bahasa Indonesia) 1:

Budidaya pisau Redtail pisau ini mongolicus telah meningkat secara substansial selama dekade terakhir sepanjang
angtze River basin; Peningkatan tersebut dalam produksi menyebabkan peningkatan Transportasi remaja. Namun, pisau Redtail
remaja Transportasi memiliki tingkat kematian yang tinggi karena respon stres yang kuat yang diperburuk oleh akumulasi
dan sisa metabolisme beracun. Melalui 24-jam simulasi transportasi Percobaan (sampling setiap 6 jam), kami menilai efek
tricaine methanesulfonate (MS-222) pada 10 mg / 50 air, 20 mg / 50, dan 40 mg / 50 pada pisau, kelangsungan hidup dan Redtail air
parameter kualitas, dan juga kami menilai minyak cengkeh pada 2 mg / 50 air, 5 mg / 50, dan 10 mg / 50. Tak satu pun dari anestesi
fi cantly meningkatkan kualitas air signifikan selama awal 6-12 jam percobaan. Namun, MS-222 perawatan di
pertama 12-24 jam percobaan telah secara signifikan lebih tinggi oksigen terlarut (DO), amonia, dan pH dari kontrol
T gagal menurunkan kadar amonia un-terionisasi. Sebaliknya, pengobatan minyak cengkeh secara signifikan mengurangi
amonia un-terionisasi tetapi gagal untuk meningkatkan DO dan pH pada 12-24 jam. Perbaikan kualitas air tercermin
kematian kumulatif, MS-222 dan perawatan anestesi minyak cengkeh memiliki angka kematian kumulatif secara signifikan lebih rendah
dibandingkan dengan kontrol pada 12-24 jam. MS-222 dan cengkeh minyak melambat kualitas air kerusakan, memastikan transportasi yang lebih baik
lingkungannya, dan meningkatkan kelangsungan hidup remaja selama transportasi. Kami merekomendasikan 5 mg minyak / 50 cengkeh digunakan saat
mengangkut culters remaja Redtail karena yang meningkatkan konsentrasi ikan hidup sekaligus menjaga biaya rendah.