Judul: The Potency of Xylzine Utilization as an Alternative Anaesthesia in Transportation of Catfish
Abstrak: This research was conducted to determine xylazine potency as an alternative anaesthesia in transportation of catfish. This research used xylazine as anaestethicum in catfish by dipping method. The research used 650 catfish with body weight about 6 grams and body length about 5 cm. This research used six treatments and five replications. The catfish were divided into 6 dosage groups of xylazine i.e., 0 (as a control), 10, 20, 30, 40, and 50 ppm. The anaesthesia effects were observed as imbalance and less muscle tone, lost of some reflex functions, and also reduced in pain perseption. Dipping with 40 ppm dosage had the onset of 96,2 minutes, the duration of 229,2 minutes, and 0% mortality. Onset and duration of anaesthesia could reflect the effectiveness of xylazine utilization as an alternative anaesthesia in transportation of catfish. The result showed that 40 ppm xylazine was the effective dosage for anaesthesia in transportation of catfish.
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Judul: The Potential Use of Acepromazine as a Transquilizer for Transportation of Catfish Juvenille
Abstrak: This study aimed to assess the potential use of acepromazine as a transquilizer in catfish juvenille (Pangasius pangasius) transportation with a different times of treatment (in the morning and afternoon). This research was conducted by using the method of soaking (dipping), mixing water with acepromazine. Experimental animals used were 600 catfishes, 3-week old catfish, with average body length about 5.08 cm, and body weight around 6 g. The experimental catfish were assigned into a completely randomized design with a 2x6 factorial arrangement. The first factor was soaking time consisted of two levels, morning and afternoon. The second factor was dose of acepromazine consisted of six levels, 0 ppm, 5 ppm, 15 ppm, 25 ppm, 35 ppm, and 45 ppm. Catfish were placed in a container containing 100 ml water and then mixed with acepromazine. When the fish showed the symptoms of anaesthesia, the fish were immediately placed into another container that contains water for the process of recovery. The symptoms of anaesthesia were observed, the decreases of body balance, reflex body, tonus muscle, and pain. Time needed by fish to recover was the duration of acepromazine. In addition, the mortality rate was also observed to document the safety of acepromazine as a transquilizer. The result showed that the effective dosage for used in catfish juvenille transportation were 25 ppm with time of treatment in the morning. This dosage was choosed because it had a faster onset (96,55 minute), a longer duration (81.76 minute), and a lower mortality rate (10%).
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Judul: Peramalan enso dan pemodelan hubungan enso dengan curah hujan monsoon
Abstrak: Curah hujan merupakan salah satu paramclcr iklim yang sangal bcrpcngaruh dalam bidang pcrlmlim1. Scdangkan ENSO atau El-Nino SouLl1rc11 Oscillation mcrupakan salah satu faktor global yang dapat mcmpengaruhi kcjadian dan pola curah hujan di Indonesia, khususnya wilayah dcngan tipc curah hujan monsoon. Peramalan pola dan nilai ENSO di masa yang akan datang pcrlu untuk dikctahui, schingga variabilitas kejadim1 curah hujan dapat ditindaklanjuti. Dalam pcnclitim1 ini dipclajari pcngaruh ENSO tcrhadap dacrah ·yang mcmiliki tipc cu rah hujan monsoon dcngan dua ta ha pan analisis. (I) Pcramalan ENSO dan (2) Pcmodclan ENSO dcngan Curah Hujan Monsoon. Pcrmnalan ENSO dcngan mcnggunakan mctodc Gcostatistika dcngan pcndckatan intcrpolasi dan ckstrapolasi analisis kcccndcrugan pcrmukaan, mcnghasilkan nilai pcramalan yang cukup baik bila dibandingkan dcngan pcndckatan mctodc Winters dcngan nilai R2 antara 14.57%1, 79.81%, dan ragam pcrmnalan 1.772146 - 5.295013. Karaktcristik model yang dihasilkan mcnunjukkan pola nilai tckanan dan suhu yang ccndcrung mcningkat dari tahun kc tahun bcrikutnya, kccuali tckanan Tahiti yang ccndcrung turun. Hubungan ENSO dcngm1 cuntl1 hujan monsoon untuk kc-crnun stasiun cukup baik bila didckati dengan rcgresi metode !mad.rat terkccil (OLS dan WLS) dibandingkan regrcsi komponcn utama (Principal Component Regression) . Model yang dihasilkan mcmiliki kcmampuan dcm validasi yang cukup b::iik. Nilai-nilai ramalan kc-cnam model yang ada mampu mcngikuli pola dala aktual untuk tmum I 998. Schingga model ini dapat digm1akan scbagai aJtcrnatif lain dalam pcramaJan curah hujan w1tuk kc-cnam stasiun di masa yang berikut..nya.
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