BIOLOGI REPRODUKSI DAN TINGKAT KEBERHASILAN PEMIJAHAN IKAN BAUNG Hemibagrus nemurus (Valenciennes, 1840) POPULASI CIRATA DENGAN INKUBASI SUHU BERBEDA

D. Radona, Jojo Subagja, V. A. Prakoso, I. I. Kusmini, Anang Hari Kristanto
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引用次数: 1

Abstract

Ikan baung merupakan salah satu komoditas populer di Indonesia. Dalam pengembangan budidayanya masih diperlukan input teknologi terutama pada proses pembenihan. Penelitian ini bertujuan untuk mengevaluasi karakter biologi reproduksi dan keberhasilannya dalam proses pemijahan pada ikan baung populasi Cirata yang diinkubasi pada suhu 23°C-24°C, 25°C-26°C, 27°C-28°C, dan 29°C-30°C. Inkubasi induk dilakukan pada styrofoam berukuran 45 cm x 35 cm x 25 cm dengan ketebalan 3 cm. Setiap styrofoam diisi satu ekor induk yang matang gonad. Seleksi tingkat kematangan gonad dilakukan secara kanulasi dan induksi hormon menggunakan LHRH analog (0,6 mL/kg). Penyuntikan dilakukan dua kali dengan selang waktu enam jam. Styrofoam diisi air dengan ketinggian 20 cm, dilengkapi tutup pada bagian atas, water heater, dan sistem aerasi. Inkubasi suhu dilakukan secara eksperimental menggunakan rancangan acak lengkap dengan empat perlakuan suhu dan masing-masing perlakuan diulang sebanyak tiga kali. Hasil penelitian menunjukkan suhu optimal inkubasi pada induk yaitu 27°C-28°C dengan waktu laten 8 jam 35 menit, dan derajat ovulasi 100%. Secara statistik inkubasi induk pada suhu 27°C-28°C menunjukkan nilai karakter biologi reproduksi yang berbeda nyata (P<0,05) dibandingkan dengan inkubasi suhu 23°C-24°C dan 25°C-26°C. Nilai biologi reproduksi yang dihasilkan pada perlakuan terbaik tersebut adalah indeks kematangan gonad 8,6 ± 0,5%; fekunditas 23.909 ± 1.473 butir per ekor; derajat pembuahan 85,5 ± 5,5%; derajat penetasan 69,9 ± 5,0%; dan sintasan 72,3 ± 5,8%. Pada inkubasi suhu 27C°-28°C, telur terdistribusi dengan diameter telur rata-rata sebesar 1,5 mm.Asian redtail catfish is one of the most popular fish commodities in Indonesia. However, improvements in its aquaculture technology are still needed, especially in the breeding process. This study was aimed to evaluate the characters of reproductive biology and level of spawning on Asian redtail catfish from Cirata population incubated at different temperature settings of 23°C-24°C, 25°C-26°C, 27°C-28°C, and 29°C-30°C. Broodstock incubation was conducted in styrofoam boxes (sized 45 cm x 35 cm x 25 cm) with a wall thickness of 3 cm. One mature broodstock was placed inside each Styrofoam. Each styrofoam box was previously filled with freshwater of 20 cm deep, equipped with a lid on top, a water heater, and an aeration system. The gonad maturity stage of each broodstock was determined using cannulation, whilst the hormone induction used LHRH hormone analog (0.6 mL/kg). The injection was performed twice within six hours interval. The incubation was arranged in a completely randomized design (CRD) with four temperature treatments with three replicates. The results showed that the optimal incubation temperature for the broodstock was 27°C-28°C with the latent time ovulation of 8 hours 35 minutes and an ovulation rate of 100%. Statistically, the incubation of broodstock at 27°C-28°C showed a significant difference on the reproductive biological character value (P<0.05) compared to temperature ranges at 23°C-24°C and 25°C-26°C. The reproductive biology parameters generated were gonadosomatic index of 8.6 ± 0.5%; fecundity of 23,909 ± 1,473 egg per individual; fertilization rate of 85.5 ± 5.5%; hatching rate of 69.9 ± 5.0%; and survival rate of 72.3 ± 5.8%. At the incubation temperature of 27°C-28°C, the egg was distributed with an average egg diameter of 1.5 mm.
生殖生物学和成功养殖的虎斑鱼大同级nemurus (valenibagrus nemurus, 1840)不同温度潜伏期的CIRATA种群
蝠鲼是印尼最受欢迎的商品之一。在开发市场仍然需要技术输入,特别是在孵化过程中。本研究旨在评估过程中生殖生物学和成功的角色baung人口Cirata鱼的产卵孵化温度23°C - 24°C, 25°C-26°C, 27°C-28°C, 29°C-30°C。大师孵育是在45厘米乘35厘米乘25厘米乘3厘米深的泡沫塑料上进行的。每个泡沫塑料都有一个成熟的股。gonad的成熟度选择是通过类似LHRH(0.6毫升/公斤)的类似LHRH和激素诱导。每隔6小时注射两次。它充满了20厘米的水,顶部有一个盖子,水加热和充气系统。温度潜伏器是用一种随机设计的方法进行的,其中四种方法有四种,每一种方法都重复三次。研究结果显示,潜伏期的航母就是最佳气温27°C-28°C的排卵时间8小时35分钟,潜在度100%。据统计孵化温度27°航母C-28°C显示不同生殖生物学的角色真实价值(P < 0。05)相比,孵化温度23°C - 24°C和25°C-26°C。生殖生物学的最好待遇上产生的价值是性腺成熟指数8.6±5%;尾巴的生育力23.909±1.473每粒;度受孕85.5±5,5%;度孵化69,9±5,0%;和sintasan 72.3±5,8%。孵化温度27C°-28°C、鸡蛋鸡蛋大小的平均1.5毫米直径的分布。亚洲redtail鲶鱼一号》就是最受欢迎的鱼commodities在印尼。悬浮,其aquaculture技术的植入物仍然需要,特别是在breeprocess中。这个研究是aimed to evaluate the characters of reproductive生物学》和spawning水平在亚洲redtail鲶鱼Cirata人口incubated的任何不同的温度设置23°C - 24°C, 25°C-26°C, 27°C-28°C,和29°C-30°C。Broodstock incubation是由三厘米长的长墙设计的泡沫塑料容器。一对夫妻把所有的塑料都放进去了。每一个泡沫塑料盒都预先充满了20厘米深的新鲜水,内衬有一个盖子,一个水加热和一个航空系统。每个饺子的舞台都是用插管决定的,而旋转的荷尔蒙是模拟的(0.6毫升/公斤)。注射间隔6小时内两次出现。委托进行了一个完整的分级设计,四种温度采用三种复制品。《incubation最佳温度for The results那里那个broodstock是27°C-28°C时代latent ovulation》用8小时35分钟》和一个ovulation率100%。Statistically, broodstock at 27°之incubation C-28°C那里a浓厚,画《reproductive生物character价值(P < 0 . 05) compared to ranges的温度在23°C - 24°和25°C C-26°C。《生物学reproductive parameters generated是gonadosomatic index of 8 6±0。5%;fecundity of 23,909±1,473蛋每个体;fertilization 85±5。5%的速率;hatching率的69。9±5 0%;和生存72±3。5 . 8%的速率。incubation温度》在27°C-28°C,鸡蛋是按with an平均卵的直径是1。5毫米。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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