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Sexing pada Ikan Brek Puntius orphoides (Valenciennes, 1863) Menggunakan Metode Truss Morfometrics

Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 31, No 1 (2014)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

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Abstract

The red chick barb (Puntius orphoides) is one of fresh water ichtiofauna included in family Cyprinidae found a lot in River Klawing, the biggest and richest river in Purbalingga with 18 species of fish.  The aim of this study was to find out the differences between male and female red chick barb by truss morphometrics and to find out truss morphometrics distance.  The material used were sex mature fish from River Klawing.  The variables meassured included morphometry based on truss morphometrics point, number of male and female fish.  Truss distance was then compared to the total length so that the truss distance ratio was determined.  Next, a statistical test i.e. t test was performed between the male and female fish.  The results of this study showed that the male and female red chick barb can be distinguished by truss morphometrics method.  The distance ratio to be used as diagnostic character were 11 and 24 ration of truss morphometrics distance compared found in the head, body, and tail.

PENGARUH TETRAKSIKLIN TERHADAP KERENTANAN OLEH SERANGAN PENYAKIT MAS, PERTUMBUHAN DAN DAYA TETAS TELUR LELE DUMBO (Clarias gariepinus)

Jurnal Perikanan Universitas Gadjah Mada Vol 1, No 1 (1996)
Publisher : Universitas Gadjah Mada

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Abstract

Study was conducted to find out the effect of tetracycline medication to suspectibility against MAS, growth rate and hatching rate of African catfish (Clarias gariepinus). The result indicated that intraperitoneal injection of tetracycline (50 mg/kg fish) could decrease the growth rate of fish significantly (P<0.05). However, this medication did not have significant effect to suspectibility of fish against A. hydrophila the causative agent of MAS. Intraperitoneal injection of tetracycline (50 mg/kg fish) in african catfish brooders two weeks before spawning also did not effect fertility or hatching rate of eggs.  

VAKSINASI INDUK LELE DUMBO (Clarias gariepinus) UNTUK MENINGKATKAN KELULUSHIDUPAN DAN PERTUMBUHAN PADA TAHAP PENDEDERAN

Jurnal Perikanan Universitas Gadjah Mada Vol 1, No 1 (1996)
Publisher : Universitas Gadjah Mada

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Abstract

Female and male brooders were vaccinated by intraperitoneal injection and intramuscular injection respectively. Unvaccinated brooders were used as control. Fry which was produced by vaccinated and unvaccinated brooders were reared separately in paddy field pond for 15 days for the first nursery rearing period and another 15 days for the second nursery rearing period. These field experiment conducted in four locations, namely slmean (2 location) and magelang (2 location). Results of these experiments indicated that brooders vaccination could increase survival rates of the first and the second nursery rearing periods approximately 65.00% and 3.69% respectively. Average weight and total length of fry which produced by vaccinated broodstock increased 12.59% and 58.51% during the first nursey rearing period, 8.55% and 7.14% during the second nursery period.

PENGARUH VAKSINASI INDUK LELE DUMBO (Clarias gariepinus) TERHADAP KELULUSHIDUPAN, PERTUMBUHAN BENIH DAN PRODUKSI IKAN

Jurnal Perikanan Universitas Gadjah Mada Vol 1, No 1 (1996)
Publisher : Universitas Gadjah Mada

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Abstract

In Indonesia, outbreak of MAS on cultured African catfish  occurs periodically. The outbreek seems relate closely to quality of fry,. High quality fry and proper handling will ensure the successful of African catfish culture. Vaccination on vrooders is one of methods to produce high quality of African catfish fry. The objectives of this experiment  were to know effect of fingerling produced by vaccination brooders on survival., growth rate, and fish production  during grow out periode. Female and male brooders were vaccinated by intraperitoneal and intramuscular injection of 0.5 ml vaccine respectively. Unvaccinated brooders were used as control. Those brooders were spawned 2-4 weeks after vaccination. Fry which produced by unvaccinated brooders was reared separately in paddy field pond 15 days for the first nursery rearing. Fingerling produced by the second nursery rearing period was used for grow out for 3 mounths. Results of this experiment indicated that brooders vaccination could increase survival rate and production of African catfish approximately 22.16% and 9.94% from control respectively. However, the length and weight of fingerling produced by vaccinated brooders were lower than fingerling produced by unvaccinated brooders

VIBRIOSIS PADA IKAN DAN ALTERNATIF CARA PENANGGULANGANNYA

Jurnal Perikanan Universitas Gadjah Mada Vol 1, No 1 (1996)
Publisher : Universitas Gadjah Mada

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Abstract

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UJI KONSENTRASI PENGHAMBATAN MINIMAL, RESISTENSI DAN PENGGUANAAN ANTIBIOTIK UNTUK MENANGGULANGI PENYAKIT MOTIL AEROMONAS SEPTISEMIA (MAS) PADA LELE DUMBO (Clarias gariepinus)

Jurnal Perikanan Universitas Gadjah Mada Vol 1, No 1 (1996)
Publisher : Universitas Gadjah Mada

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Abstract

Five isolates of A. hydrophila were used for MIC, and resistency test to rifampicin, kanamycin, chloramphenicol, erythromycin and oxytetracyclin by dilution method with TSB medium. The results indicated that the bacteria had various degree of sensitivity to these antibiotics. Resistency of bacteria isolates increase 1.3 to 6.2 times after they were passaged three times to MIC of the drugs or antibiotics by dilution method. Other test was kanamycin medication conducted by i.p. injection, immersion, and oral methods. The result showed that all kanamycin medication methods were effective to decrease mortality rate caused by A. hydrophilia infection. Oral medication method was the most effective compare to other methods because this method could minimize stress during handling. However, oral medication took much longer time (15 days) than immersion and injection methods (few minutes).