TEKNIS PRODUKSI PEMBENIHAN DAN PENDEDERAN IKAN LEMON ALGAE EATER Gyrinocheilus aymoneiri DI ADE’S FISH FARM, KABUPATEN BOGOR, JAWA BARAT

ABSTRACTLemon fish Algae Eater is one of the aquarium fish which is well-known as Algae Eater. The Lemon Algae Eater is placed in a pond measuring 2 m x 3 m x 0.8 m, with a water height of 50 cm. For optimum health, feed the Algae Eater with Feng Li pellets by having a restricted feeding method or this can also be limited to 5% from the brood fish weight. The semi-natural hatchery of Lemon fish Algae Eater is needed. An aquarium (100cm x 60 cm x 50 cm) with a water height of 30 cm is needed for the hatchery of Lemon fish Algae Eater eggs. The average fecundity of Lemon fish Algae Eater eggs produced in 1 spawning can reache up to 84 742 eggs with the average of Fertilization Rate is 79%, the Hatching Rate is 83%, and the Survival Rate is 74%. The Lemon Algae Eater eggs will hatch in 10-12 hours. Fish nursery of lemon fish algae eater is used pond measures 3 m x 2 m x 1.5 m. The freshly hatched larvae are harvested at the age of 30 days and 45 days with a size of 1.2-1.5 cm/fish and 2.5-3 cm/fish. ABSTRAKLemon algae eater merupakan salah satu ikan aquarium yang dikenal sebagai pemakan alga. Pemeliharaan ikan lemon algae eater dilakukan pada bak beton yang berukuran 2 m x 3 m x 0.8 m, dengan tinggi air 50 cm. Pakan yang diberikan berupa pelet feng li dengan metode pemberian pakan restricted atau metode dibatasi dengan 5% dari bobot induk. Pemijahaan induk ikan lemon algae eater dilakukan secara semi alami. Wadah penetasan telur ikan lemon algae eater menggunakan akuarium ukuran 100 cm x 60 cm x 50 cm dengan tinggi air 30 cm. Rata-rata fekunditas telur ikan lemon algae eater yang dihasilkan dalam 1 kali pemijahan mencapai 84 742 butir telur dengan memiliki nilai rata-rata Fertilization Rate sebesar 79%, Hatching Rate sebesar 83%, dan Survival Rate sebesar 74%. Telor ikan lemon algae eater akan menetas dalam waktu 10-12 jam. Kegiatan pendederan ikan lemon algae eater menggunakan wadah bak beton yang berukuran 3 m x 2 m x 1.5 m. Benih yang dipanen berumur 30 hari dan 45 hari dengan ukuran 1.2 -1.5 cm/ekor dan 2.5 - 3 cm/ekor.

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REPRODUKSI IKAN BAUNG (Hemibagrus nemurus) DENGAN PERLAKUAN DOSIS HORMON GnRH-a BERBEDA

Jurnal Riset Akuakultur ◽

10.15578/jra.13.3.2018.213-218 ◽

2018 ◽

Vol 13 (3) ◽

pp. 213

Author(s):

Jojo Subagja ◽

Vitas Atmadi Prakoso

Keyword(s):

Body Weight ◽

Survival Rate ◽

Larval Survival ◽

Fertilization Rate ◽

Fertility Rate ◽

Time Interval ◽

Hatching Rate ◽

Good Prospect ◽

Hormonal Manipulation ◽

Different Doses

Ikan baung (Hemibagrus nemurus) memiliki prospek bagus untuk dikembangkan sebagai komoditas budidaya di Indonesia karena citarasa daging yang enak banyak diminati konsumen. Dewasa ini, peningkatan produksi benih dapat dilakukan melalui pemijahan buatan dengan manipulasi hormonal. Penelitian yang dilakukan bertujuan untuk mengevaluasi produksi induk ikan baung melalui pemijahan buatan dengan dosis penyuntikan GnRH-a berbeda. Penelitian dilakukan di Instalasi Riset Plasma Nutfah Perikanan Air Tawar, Cijeruk, Bogor pada bulan November 2017. Induk betina ikan baung yang digunakan berukuran 465,0 ± 71,8 g; dan induk jantan 426,3 ± 46,8 g. Induksi dilakukan dengan penyuntikan hormon GnRH-a dengan tiga dosis yang berbeda pada induk betina (0,3; 0,5; dan 0,7 mL/kg bobot badan), dan ikan jantan dengan dosis 0,4 mL/kg bobot badan. Masing-masing perlakuan terdiri atas tiga ekor induk betina sebagai ulangan. Hormon disuntikkan secara intramuskular, diberikan dua kali penyuntikan 35% dari dosis total pada penyuntikan pertama, dan 65% diberikan pada penyuntikan kedua, dengan interval waktu penyuntikan delapan jam. Parameter yang diamati yaitu jumlah telur ovulasi, derajat pembuahan, derajat penetasan, dan sintasan larva selama tujuh hari. Hasil penelitian menunjukkan bahwa dosis penyuntikan hormon GnRH-a 0,5 mL/kg pada induk ikan baung saat proses pemijahan buatan menghasilkan derajat penetasan yang lebih tinggi dibandingkan dosis 0,3 dan 0,7 mL/kg; serta sintasan larva yang lebih baik dibandingkan dosis 0,7 mL/kg. Sedangkan nilai jumlah telur yang berhasil ovulasi dan derajat pembuahan yang relatif lebih baik ditemukan pada perlakuan dosis 0,7 mL/kg dibandingkan dengan dosis 0,3 dan 0,5 mL/kg.Asian redtail catfish (Hemibagrus nemurus) has a good prospect to be developed as aquaculture commodity in Indonesia. It was proved by the demand of consumers regarding to its delicious flesh taste. Recently, efforts to increase seedling production could be implemented through artificial spawning with hormonal manipulation. This study was conducted to evaluate the production of broodstocks through artificial spawning with different doses of GnRH-a. Study was conducted at Research Institute for Freshwater Fisheries Germplasm, Cijeruk, Bogor in November, 2017. The broodstock used in this study was 465.0 ± 71.8 g for females, and 426.3 ± 46.8 g for males. Induction was performed by injection of GnRH-a hormone with three different doses on female broodstocks (0.3, 0.5 and 0.7 mL/kg of body weight), and male broodstocks with a dose of 0.4 mL/kg of body weight. Each treatment consisted of three females as replications. The hormone was injected intramuscularly, given twice injection: 35% of the total dose is given at the first injection, and the remaining 65% was given at the second injection, with an injection time interval of eight hours. The results showed the observed parameters of number of the ovulated eggs, fertilization rate, hatching rate, and larval survival for seven days, treatment dosage of 0.5 mL/kg showed better results (P<0.05) than the dosage of 0.3 mL/kg and 0.7 mL/kg. Parameters observed were number of ovulated eggs, fertility rate, hatching rate, and survival rate for seven days. The results showed that the dosage of 0.5 mL/kg GnRH-a injection to the broodstock during artificial spawning resulted in higher hatching rate compared to 0.3 and 0.7 mL/kg and better larval survival rate than the dosage of 0.7 mL/kg. Meanwhile, the number of ovulated eggs and fertility rate was relatively better in the treatment of 0.7 mL/kg compared with the dosage of 0.3 and 0.5 mL/kg.

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REPRODUCTIVE PERFORMANCE OF DOMESTICATED BROODSTOCK OF SILVER PERCH, Bidyanus bidyanus (MITCHELL 1838) AND THE RELATIONSHIP BETWEEN OIL GLOBULE FRAGMENTATION AND EGG QUALITY

Indonesian Aquaculture Journal ◽

10.15578/iaj.12.2.2017.43-51 ◽

2017 ◽

Vol 12 (2) ◽

pp. 43 ◽

Cited By ~ 1

Author(s):

Sulaeman Sulaeman ◽

Ravi Fotedar

Keyword(s):

Survival Rate ◽

Reproductive Performance ◽

Egg Quality ◽

Fertilization Rate ◽

Hatching Rate ◽

High Fecundity ◽

Fertilisation Rate ◽

Significant Difference ◽

The Relationship

The experiments investigated the reproductive performance of the domesticated broodstock of the silver perch and the relationship between various degrees of oil globule fragmentation and egg quality. Six years old of second generation broodstock (n=3) were evaluated based on the fecundity, fertilisation rate, hatching rate, the degree of oil fragmentation of egg, and the quality of embryos and larvae produced. The fragmentation were grouped into three categories: un-fragmented (cat-1), moderately fragmented (cat-2), and highly fragmented (cat-3). The results showed that the broodstock had a relatively high fecundity (132,400 ± 7,22), fertilization rate (94.27 ± 1.28%), and hatching rates (87.94 ± 1.23%). The survival rate of larvae at 12 days post hatching (dph) in cat-1 (71.3 ± 0.9%) was higher than cat-2 (66.7 ± 0.9%) whereas cat-2 was higher than cat-3 (61.3 ± 0.3%). The eggs was dominated by cat-1 (78.11 ± 2.44%) which was significantly higher than cat-2 (21.26 ± 2.45%) and cat-3 ones (0.40 ± 0.21%). The survival rate of embryo at 20 hours post spawning (hps) and hatching rate of cat-1 (95.33 ± 0.00% and 93.33 ± 0.00%) and cat-2 (90.00 ± 0.00% and 85.00 ± 0.00%) were significantly higher than cat-3 (72.33 ± 1.76% and 60.33 ± 0.00%). The total length (TL) of the larvae of cat-1 and cat-2 (8.44 ± 0.21 mm and 8.35 ± 0.23 mm respectively) were significantly higher than larvae of cat-3 (7.09 ± 0.14 mm). No significant difference was found in the larval deformities among any categories. In conclusion, the reproductive performance of six year-old broodstock silver perch showing acceptable performance and egg categorisation based on oil globule fragmentation can be used as a useful tool to indicate eggs quality of silver perch.

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PERFORMA PEMIJAHAN IKAN BELIDA (Notopterus chitala) MELALUI INDUKSI HORMON HCG DAN LHRH

Jurnal Riset Akuakultur ◽

10.15578/jra.13.2.2018.115-122 ◽

2018 ◽

Vol 13 (2) ◽

pp. 115

Author(s):

Lies Setijaningsih ◽

Jojo Subagja ◽

Deni Radona ◽

Brata Pantjara ◽

Anang Hari Kristanto ◽

...

Keyword(s):

Body Weight ◽

Survival Rate ◽

Fertilization Rate ◽

Hatching Rate ◽

Processed Food ◽

Induction Dose ◽

Breeding Technology ◽

Technology Applications ◽

Egg Diameter ◽

Lhrh Analog

Permintaan ikan belida cukup tinggi untuk memenuhi kebutuhan konsumsi dan bahan baku olahan makanan yang masih mengandalkan tangkapan dari alam. Tingginya eksploitasi mengakibatkan populasi ikan dari tahun ke tahun semakin berkurang dan terancam punah. Teknologi pembenihan ikan belida dengan penggunaan hormon diduga dapat meningkatkan produksi larva untuk keperluan budidaya. Penelitian dilakukan untuk mengevaluasi performasi pemijahan ikan belida secara alami dan buatan melalui induksi hormon HCG dan LHRH analog. Pemijahan alami dan buatan dilakukan menggunakan induk betina sebanyak enam ekor dan jantan tiga ekor (rasio 2:1). Induk yang digunakan berukuran panjang 46 ± 5 cm dan bobot 2.209 ± 623 g. Pemijahan buatan dilakukan dengan induksi hormon HCG dosis 500 IU/kg dan LHRH analog dosis 0,5 mL/kg. Penyuntikan HCG dan LHRH diberikan dengan interval 24 jam. Hasil penelitian menunjukkan pada pemijahan buatan (induksi hormon) diperoleh induk yang memijah sebanyak dua ekor dengan nilai diameter telur (3,1 ± 0,3 mm); fekunditas (282-907 butir); derajat pembuahan (21%-40%); derajat penetasan (56%-75%); dan sintasan (30%-50%); sedangkan pada pemijahan alami diperoleh satu ekor induk yang memijah dengan nilai diameter telur (3,5 ± 0,3 mm); fekunditas (1.616 butir); dan derajat pembuahan (86,7%); selama tiga bulan pengamatan secara intensif dengan frekuensi pemijahan enam kali. Aplikasi teknologi pemijahan dengan menggunakan induksi hormon dapat menghasilkan produk larva pada ikan belida.The demand for fish consumption of Clown Knifefish is considerably high. However, the fish supply for consumption and processed food still relies on wild-caught. Such exploitation has decreased the population of Clown Knifefish to a point that it can become an endangered species. Efforts on the breeding technology of Clown Knifefish through natural and artificial propagation using of hormones have shown promising results. The current study was conducted to evaluate the performance of Clown Knifefish in natural and artificial spawning conditions using the induction of HCG hormone and LHRH analogues. The natural and artificial spawning treatments were conducted using six fish females and three fish males (a ratio of 2:1). The average Broodstocks’ size was 46 ± 5 cm in length and 2,209 ± 623 g in weight. The artificial spawning was conducted with HCG hormone induction (dose of 500 IU/kg body weight) and LHRH analogue (dose: 0.5 mL/kg). HCG and LHRH injections were given within 24 hours interval. The results showed that the artificial spawning (hormone induction) had successfully caused two broodstock to spawn producing eggs with the diameter of 3.1 ± 0.3 mm; fecundity of 282-907 eggs; fertilization rate of 21%-40%; hatching rate of 56%-75%; and survival rate of 30%-50%. In the natural spawning, one broodstock had spawned with the egg diameter of 3.5 ± 0.3 mm; fecundity of 1,616 eggs; and fertilization rate of 86.7%. This study concludes that spawning technology applications using hormonal induction can increase the production larvae of Clown Knifefish broodstock.

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Effect of pituitary gland doses on artificial propagation of Guchibaim, Mastacembelus pancalus (Hamilton)

Journal of the Bangladesh Agricultural University ◽

10.3329/jbau.v9i2.11045 ◽

2012 ◽

Vol 9 (2) ◽

pp. 305-310

Author(s):

MM Rahman ◽

MI Miah ◽

KR Hasan ◽

SM Farid

Keyword(s):

Body Weight ◽

Single Dose ◽

Survival Rate ◽

Pituitary Gland ◽

Fertilization Rate ◽

Ovulation Rate ◽

Optimum Dose ◽

Hatching Rate ◽

Double Dose ◽

Artificial Propagation

Artificial propagation of Mastacembelus pancalus was conducted in order to determine the optimum dose of pituitary gland (PG) hormone at the hatchery of the Field Laboratory Complex, Faculty of Fisheries, Bangladesh Agricultural University, Mymensingh. The present study consisted of two trials and each trial had four treatments (T1, T2, T3 and T4, respectively) with three replications of each. In the experiment single dose and double dose had been used for T1, T2, T3 and T4, respectively to evaluate the efficiency on ovulation rate, fertilization rate, and hatching rate of M. pancalus eggs. The hatchlings were reared in aquarium up to 30 days and survival rate was determined. Treatment-3 (T3) of double dose (170mg PG kg-1 and 60mg PG kg-1 body weight of fish for female and male respectively) showed better results in terms of ovulation rate (90.03±2.56%), fertilization rate (90±0.81%), hatching rate (80±1.84%), and survival rate (40.00±3.19%) was recorded than other treatments of single and double dose. The water temperature was recorded 27 to 31°C. In the present study, treatment-3 (T3 in double dose) was the best findings in terms of ovulation rate, fertilization rate, and hatching rate which can be used in artificial propagation of M. pancalus for the development of hatchery production. May and June are the suitable months for artificial propagation of the said species. DOI: http://dx.doi.org/10.3329/jbau.v9i2.11045 J. Bangladesh Agril. Univ. 9(2): 305310, 2011

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Pengaruh penambahan bahan pengencer sperma terhadap fertilitas spermatozoa ikan lele dumbo (Clarias gariepinus)

Acta Aquatica Aquatic Sciences Journal ◽

10.29103/aa.v1i1.298 ◽

2014 ◽

Vol 1 (1) ◽

pp. 46

Author(s):

Prama Hartami ◽

Muhammad Nur ◽

Eva Ayuzar

Keyword(s):

Water Quality ◽

Survival Rate ◽

Clarias Gariepinus ◽

Fertilization Rate ◽

Coconut Water ◽

Hatching Rate ◽

Aceh Province ◽

Quality Value ◽

Natural Milk

Penelitian ini dilaksanakan selama 9 hari yang bertempat di Laboratorium Hatcheri dan Teknologi Budidaya Universitas Malikussaleh, Aceh Utara,Propinsi Aceh. Penelitian ini bertujuan untuk mengatahui pengaruh penambahan bahan pengencer sperma terhadap fertilitas spermatozoa ikan lele dumbo dan memperoleh jenis bahan pengencer yang terbaik dalam pemijahan ikan lele dumbo. Penelitian ini di gunakan metode eksperimen laboratorium yang di gunakan pola rancangan acak lengkap (RAL) non faktorial dengan 4 perlakuan 3 ulangan. Bahan uji yang digunakan adalah spermatozoa ikan lele dumbo, Ovaprim, Akuadest, Susu steril, Air kelapa muda, Larutan Infus/ NaCl. Parameter yang di ukur ialah daya fertilitas telur, derajat penetasan telur, kelangsungan hidup benih. Berdasarkan hasil penelitian menunjukkan bahwa penggunaan Aquades sebagai pengencer merupakan bahan yang terbaik dimana fertilitas didapatkan sebesar 98.33 %, derajat penetasan telur sebesar 77.28 %, tingkat kelangsungan hidup larva sebesar 93.44 %. Hasil uji analisis statistik untuk semua parameter uji menunjukkan F hitung > dari F Tabel untuk perlakuan Aquades sebagai bahan pengencer. Sementara itu, hasil pengukuran parameter kualitas air seperti suhu 26,07 – 28,15 0C dan pH air 8,67 – 8,95.This research was done for 9 days in Laboratory of Hatchery and Aquaculture Technology Malikussaleh University, North Aceh, Aceh Province. The aim of this research was to know effect of different sperm solutions for effectiveness fertilization rate of Clarias gariepinus. This research used non factorial completely randomized treatment with three replications on each treatments that using aquadest, natural milk, coconut water and NaCl fisiologis as the sperm solutions. The test observed in this research was fertilization rate, hatching rate, and survival rate. Result showed us that the used of aquadest as the sperm solutions got the best goals which was 98,33 % for ferlilization rate, 77,28 % for hatching rate, and 93,44 % for survival rate. Based on statistical analyze also showed that f count > f table in 99.99 % level of trust for the first treatment with value 29.417 > 7.59. Meanwhile the water quality value that measurable during this research was 26.07 – 28.15 0C and 8.67 – 8.95 for pH.

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Dose Optimization With Pituitary Gland Hormone For Induced Breeding Of Bata Fish (Labeo Bata)

Bangladesh Journal of Animal Science ◽

10.3329/bjas.v37i1.9871 ◽

1970 ◽

Vol 37 (1) ◽

pp. 70-77

Author(s):

MI Miah ◽

AA Mamun ◽

MMR Khan ◽

MM Rahman

Keyword(s):

Survival Rate ◽

Pituitary Gland ◽

Fertilization Rate ◽

Ovulation Rate ◽

Optimum Dose ◽

Dose Optimization ◽

Hatching Rate ◽

Brood Rearing ◽

Labeo Bata ◽

Average Body

An experiment on induced breeding of bata fish (Labeo bata) was carried out to determine the optimum dose of pituitary gland hormone. The present study consisted of four treatments namely TI, T2, T3, and T4 with three replications of each. Twenty-four pairs of male and twelve pairs of female were selected from the brood rearing ponds and the average body wt of the female and male were 390±10 and 258±9 g respectively. To observe the effective dose for induced breeding, the females were first injected at the rate of 0.5 (T1), 1.0 (T2), 1.5 (T3) and 2.0 (T4) mg PG/kg body wt. while the second doses were performed at the rate of 4.0 (T1), 4.5 (T2), 5.0 (T3), and 5.5 (T4) mg PG/kg body wt. after 6 h from the first dose. On the other hand the males were administered a single dose of 2 mg PG/kg body wt. at the time of second dose of the female. The ovulation rate, fertilization rate, hatching rate and survival rate were determined. Among the four treatments T2 (1.0 mg PG/ kg body wt.) showed the best result in terms of ovulation rate (89%), fertilization rate (84%), hatching rate (85%) and survival rate (84%). The dose of 1.0 mg PG/kg body wt. can be used in induced breeding of bata fish (L. bata) for the development of hatchery propagation. DOI: http://dx.doi.org/10.3329/bjas.v37i1.9871 BJAS 2008; 37(1): 70-77

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EXPERIMENT ON ARTIFICIAL REPRODUCTION OF BROCCOLI (Trichogaster Lalius) WITH HCG AT DIFFERENT DOSAGES

Scientific Journal of Tra Vinh University ◽

10.35382/18594816.1.33.2019.143 ◽

2019 ◽

Vol 1 (33) ◽

pp. 68-76

Author(s):

Son Phuoc Lai ◽

Tu Thi Cam Le

Keyword(s):

Survival Rate ◽

Environmental Factors ◽

Fertilization Rate ◽

Reproductive Efficiency ◽

Hatching Rate ◽

Maturation Process ◽

Artificial Reproduction ◽

Conditioning Process ◽

Maturation Rate ◽

Different Doses

The trail on artificial reproduction of dwarf gourami(Trichogaster lalius) with HCG at different dosages is to identify the maturation ability of Gophers (Trichogaster lalius) and compare the influence of HCG at different doses on the reproductive efficiency of dwarf gourami.The experiment consisted of 4 treatments (NT): 3000UI(NT1), 4000UI(NT2), 5000UI(NT3), 6000UI/kg(NT4) females. Each treatment was repeated 3 times. The results showed that during the conditioning process, environmental factors such as temperature and pH were in the appropriate range for the maturation process of broodstock. The highest maturation rate is 40% in females and 45.83% in males. The survival rate in the conditioning process was quite low at 88.33% in males and 66.67% in females, which however did not affect the results of the experiment. For stimulation to reproduction by HCG at different doses, the fertility rate fluctuates from 33.33% - 66.67% fertility ability ranges from 268.56 to 389.72 eggs / g female, fertilization rate 61.50%, and hatching rate 98.71%. The most appropriate dose of HCG for broccoli is 4000UI and the highest fertility of the four treatments is 389.72 eggs/g females.

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Hibridisasi Ikan Karper (Cyprinus carpio) Rajadanu Dengan Ikan Karper Merah Muntilan di Laboratorium Pengujian Kesehatan Ikan dan Lingkungan (LPKIL) Muntilan, Magelang, Jawa Tengah

Samakia : Jurnal Ilmu Perikanan ◽

10.35316/jsapi.v11i2.718 ◽

2020 ◽

Vol 11 (2) ◽

pp. 71-78

Author(s):

Kukuh Septihandoko ◽

Mirni Lamid

Keyword(s):

Survival Rate ◽

Cyprinus Carpio ◽

Fertilization Rate ◽

Hatching Rate

Ikan karper (Cyprinus carpio) merupakan salah satu komoditas perikanan air tawar yang menjadi primadona di sub sektor perikanan. Adanya kendala dalam usaha pembenihan yaitu tingkat kelangsungan hidup rendah dan pertumbuhan relatif lambat. Oleh karena itu, hibridisasi dapat diterapkan untuk mendapatkan varietas benih unggul serta produksi tinggi. Penelitian ini dilaksanakan di Laboratorium Pengujian Kesehatan Ikan dan Lingkungan (LPKIL) Muntilan Jawa Tengah pada tanggal 17 Desember 2018 hingga 31 Januari 2019. Metode yang digunakan dalam penelitian ini adalah metode pengumpulan data, data primer diperoleh dari pengamatan langsung dan data sekunder diperoleh dari studi pustaka. Penelitian ini meliputi kegiatan persiapan kolam, seleksi induk, pemijahan, penetasan telur, pemeliharaan larva, hama dan penyakit serta pemanenan. Parameter yang diamati antara lain fekunditas, fertilization rate, hatching rate dan survival rate. Hasil pengamatan menunjukkan nilai fekunditas, FR (Fertilization Rate), HR (Hatching Rate) dan SR (Survival Rate) pada pemijahan semi buatan secara berturut-turut adalah 297.840 butir telur, 78 %; 96 % dan 34,19 %, sedangkan pada pemijahan alami secara berturut-turut adalah 230.400 butir telur, 84 %; 95 % dan 35,43 %.

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Production of albino slayer through a combination of crossing in brushmouth (Hypostomus plecostomus, Linnaeus 1758) ornamental fish

Jurnal Iktiologi Indonesia ◽

10.32491/jii.v20i1.510 ◽

2020 ◽

Vol 20 (1) ◽

pp. 47

Author(s):

Ahmad Teduh ◽

Dinar Tri Soelistyowati ◽

Odang Carman ◽

Harton Arfah

Keyword(s):

Survival Rate ◽

Fertilization Rate ◽

Ornamental Fish ◽

Hatching Rate ◽

Similar Phenotype ◽

Phenotype Distribution ◽

Reciprocal Crossing ◽

Fin Length ◽

Phenotype Category ◽

Hatching Rates

The objectives of this research was to evaluate the inheritance of albino slayer phenotype in brushmouth (Hypostomus plecostomus, Linn 1758) through the crosses and reproduction performance. The crossing scheme consisted of reciprocal crosses between albino slayer and albino non slayer (SN, NS) and between albino slayer (SS), each spawning in pairs (1:1) with three replications and twice spawning. The fish used in this study were brushmouth fish (Hypostomus sp.) albino Slayer males 9.07 ± 0.5 cm, albino slayer females 8.96 ± 0.4 cm, albino non slayer males 8.87 ± 0.17 cm, and albino non slayer female 8.86 ± 0.16 cm. Slayer phenotype category was identified based on the caudal length fin with 4.43 ± 0.64 cm. Parameters determined included the phenotype distribution of albino slayer, total number of eggs, fertilization rate, hatching rate and survival rate. The results showed that all crossing schemes produced four phenotypes classes including normal slayer, normal non slayer, albino slayer and albino non slayer. The slayer phenotype of albino brushmouth was highest percentage (75%) in crossing with male albino slayer (SN, SS) and highest number of eggs, while the reciprocal crossing with female albino slayer (NS) produced albino slayer 55% and lower egg count. The ratio of tail fin length to body length in albino slayer phenotype was lower than normal phenotype of broom fish. The fertilization and hatching rates were not significantly different in all crosses; however the number of eggs decreased in the second spawning. The similar phenotype cross between albino slayer phenotypes (SS) resulted the best average of survival rate (92%).

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HIBRIDISASI INTERSPESIFIK TIGA SPESIES IKAN TOR (Tor soro, Tor douronensis, DAN Tor tambroides) SECARA RESIPROKAL PADA FASE LARVA

Jurnal Riset Akuakultur ◽

10.15578/jra.16.1.2021.1-8 ◽

2021 ◽

Vol 16 (1) ◽

pp. 1

Author(s):

Toni Yulian Kusmardani ◽

Otong Zenal Arifin ◽

Agoes Soeprijanto ◽

Yunita Maimunah

Keyword(s):

Growth Rate ◽

Survival Rate ◽

Specific Growth Rate ◽

Specific Growth ◽

Fish Larvae ◽

Fertilization Rate ◽

Hatching Rate ◽

Market Demand ◽

Farmed Fish ◽

Pure Breed

Ikan Tor merupakan genus yang potensi dibudidayakan karena memiliki nilai ekonomis tinggi. Masalah yang ada adalah lambatnya pertumbuhan dan rendahnya tingkat sintasan benih ikan tersebut dalam jumlah yang memadai untuk pembudidaya. Hibridisasi atau persilangan merupakan suatu upaya untuk mendapatkan kombinasi antara populasi yang berbeda untuk menghasilkan keturunan yang memiliki sifat unggul. Hibridisasi tiga spesies ikan Tor secara resiprokal antara Tor soro (Ts), Tor douronensis (Td), dan Tor tambroides (Tt) dilakukan guna untuk mengetahui keberhasilan hibridisasi beda spesies tetapi masih dalam genus. Metode yang digunakan pada penelitian ini adalah eksperimen dengan enam perlakuan dan tiga kali ulangan hasil hibrida. Hasil yang diperoleh menunjukkan nilai derajat pembuahan tertinggi dihasilkan dari hibridisasi Td >< Ts (93,66 ± 1,15%), daya tetas tertinggi dihasilkan dari persilangan Td >< Ts (88,00 ± 1,00%), laju pertumbuhan spesifik bobot tertinggi dihasilkan dari hibridisasi Ts >< Td dan Ts >< Tt (5,62 ± 0,17%; 5,44 ± 0,06%), laju pertumbuhan spesifik panjang tertinggi dihasilkan dari hibridisasi Ts >< Td (1,79 ± 0,11%) dan sintasan tertinggi dihasilkan dari hibridisasi Tt >< Ts (86,00 ± 3,60%). Nilai heterosisyang meliputi derajat pembuahan, daya tetas telur, pertumbuhan benih, dan sintasan ikan sampai umur 41 hari menunjukkan nilai negatif, kecuali laju pertumbuhan spesifik bobot. Hibridisasi berdampak pada meningkatnya jumlah larva abnormal yang dihasilkan dibanding tetuanya (pure breed).Tor fish has the potential to be commercially developed as a farmed fish due to its high economic value and market demand. However, slow growth and low survival rate of the fish larvae and insufficient seed availability for aquaculture farmers are the main bottlenecks to develop a profitable aquaculture for tor fish. Hybridization or crossbreed is an attempt to get a combination between different populations to produce offspring inheriting superior characters. A reciprocal hybridization between Tor soro (Ts), Tor douronensis (Td), and Tor tambroides (Tt) was carried out to assess the success rate of hybridization between the three species. The study used an experimental design with six treatments and three replications to measure and compare hybridization and survival parameters between the species. The highest fertilization rate attained by hybridization Td >< Ts (93.66 ± 1.15%, the highest hatching rate was achieved by Td >< Ts (88.00 ± 1.00%), the highest weight specific growth rate was gained by hybridization Ts >< Td and Ts >< Tt (5.62 ± 0.17%; 5.44 ± 0.06%), the highest lenght specific growth rate was achieved by hybridization Ts >< Td (1.79 ± 0.11%) and highest survival rate was resulted from hybridization between Tor tambroides >< Tor tambroides (90.33 ± 1.52%). The observed heterosis (degree of fertilization rate, hatching rate, growth rate, and survival rate until the age of 41 days) showed that all parameter characters were negative, except for the weight-specific growth rate characters. This study concludes that hybridization have an impact on increasing the number of abnormal larvae produced compared to their parents (pure-breed).

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