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Use of a Single Intramuscular Injection of a Synthetic Hormone Analogue, Ovupin for Commercial Carp Seed Production in Bangladesh
(Penggunaan Suntikan Tunggal Intraotot Hormon Sintetik Analog,
Ovupin untuk Pengeluaran Komersial Benih Kap di Bangladesh)
MD. RASHEDUL KABIR MONDOL*1, SHARMIN JAMAN PROVHAT2 &
MD.
ARIF
HOSSAIN3
1Molecular
Ecology Laboratory, Australian Rivers Institute, Nathan Campus,
Griffith University 170
Kessels Road, Nathan, QLD-4111, Australia
2Department
of Fisheries, University of Rajshahi, Rajshahi-6205, Bangladesh
3Upazila
Fisheries Officer, Nimgachi Matsha Hatchery & Training Center,
Raigonj, Sirajgong-6720, Bangladesh
Diserahkan: 24 Disember 2012/Diterima: 26 Ogos 2013
ABSTRACT
A study was conducted to investigate the possibility of employing
a single intramuscular injection of a synthetic hormone analogue, ovupin on the
induced breeding of two major carps, viz. rohu (Labeo rohita), mrigala (Cirrhinus mrigala)
and an endangered minor carp, bata (Labeo bata). Three breeding trials
of each species were performed. In case of major carp, the females were
injected with single dose of ovupin solution at a rate of 0.5 mL kg-1 body
weight, while the minor carp received ovupin solution at a dose of 0.3 mL kg-1 body
weight, whereas males received extracted PG hormone at a dose of 2 and 1.5 mg kg-1 body
weight for major carps and minor carp, respectively. All the three species were
successfully bred using ovupin through a single injection. In case of major
carps, the latent period was 9-10 h while 12-14 h for minor carp. The breeding
response of females was 100% in major carps, whereas it was approximately 90%
in minor carp. Fertilization rate varied between 87.07 and 89.94% for the major
carps and between 87.6 and 89.9% for minor carps. Major carps showed higher
hatching rates (77.21 to 80.19%) than minor carp (64.9 to 66.56%). The present
study indicated that ovupin could be effective as alternative of PG in
carp’s breeding in Bangladesh.
Keywords: Induced breeding; Linpe method; ovupin; pituitary
extract
ABSTRAK
Suatu penyelidikan telah dijalankan untuk mengkaji kemungkinan
menggunakan suntikan intraotot tunggal hormon sintetik analog, ovupin pada
pembiakbakaan aruhan dua jenis kap utama, viz. rohu (Labeo rohita) dan mrigala (Cirrhinus mrigala)
serta kap kecil terancam, bata (bata Labeo). Tiga ujian pembiakan untuk setiap
spesies telah dijalankan. Dalam kes kap utama, ikan betina telah disuntik
dengan dos tunggal larutan ovupin pada kadar 0.5 mL kg-1 berat badan, manakala
kap kecil menerima larutan ovupin pada dos 0.3 mL kg berat badan-1. Ikan jantan pula
menerima ekstrak hormon PG pada dos 2 dan 1.5 kg mg-1 berat badan
masing-masing untuk kap utama dan kap kecil. Kesemua tiga spesies telah berjaya
dibiakkan menggunakan suntikan tunggal ovupin. Dalam kes kap utama, tempoh
pendam adalah 9-10 jam manakala 12-14 jam untuk kap kecil. Tindak balas
pembiakan ikan betina adalah 100% untuk kap utama dan kira-kira 90% untuk kap
kecil. Kadar persenyawaan berbeza antara 87.07 ke 89.94% bagi kap utama dan
antara 87.6 dan 89.9% bagi kap kecil. Kap utama menunjukkan kadar penetasan
yang lebih tinggi (77.21-80.19%) daripada kap kecil (64.9 kepada 66.56%).
Kajian ini menunjukkan bahawa ovupin mampu menjadi alternatif kepada PG dalam
pembiakan kap di Bangladesh.
Kata kunci: Ekstrak pituitari; kaedah Linpe;
pembiakbakaan aruhan; ovupin
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*Pengarang untuk surat-menyurat; email: rashedul.mondol@griffithuni.edu.au
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