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Journal : Jurnal Medik Veteriner

Gonadal Maturation and Spawning of Barred Loach (Nemacheilus fasciatus) Induced by Topical Gill Hormone Application Budi, Darmawan Setia; Ardiyan, Buyung Raga; Rahmawan, Dani Bagus; South, Josie; Fasya, Arif Habib; Mukti, Akhmad Taufiq
Jurnal Medik Veteriner Vol. 7 No. 1 (2024): April
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmv.vol7.iss1.2024.123-133

Abstract

Barred loach Nemacheilus fasciatus are unable to reproduce naturally in captivity due to the lack of environmental cues and gonadal maturation occurs slower than in the wild. To optimize breeding procedures for this fish species, we determined whether hormone application via the gills was an effective process and assessed hormone dosage treatments. Oodevâ„¢ was used to induce gonadal maturation and Ovaprimâ„¢ was used to induce spawning via a topical gill approach. Multiple maturation parameters such as gonadal-somatic index (GSI) and hepatosomatic index (HSI), fecundity, and egg diameter; and spawning parameters such as latency period, egg produce, fertilization rate (FR), hatching rate (HR), survival rate (SR) were recorded and compared between the hormone dosage treatments and control treatment. Both the Oodevâ„¢ gonadal maturation induction and Ovaprimâ„¢ spawning induction were effectively applied to barred loach via topical gill application. Gonadal maturation parameters were positively correlated with dosage and all were significantly different. Fry survival rate was not different between doses. The optimal dose of Oodevâ„¢ (0.75 µL/g fish) resulted in male GSI of 5.334 ± 0.320%, female GSI of 15.501 ± 0.675%, male HSI of 0.416 ± 0.023%, female HSI of 1.670 ± 0.104%, egg fecundity 4584.20 ± 493.216 eggs, egg diameter 0.964 ± 0.0151 mm. Ovaprimâ„¢ optimal dosage (3.00 µL/g female and 1.50 µL/g male) was resulted latency period 11.05 ± 0.52 hours, egg produced 3504.83 ± 358.57, FR 96.77 ± 0.88%, HR 83.62 ± 3.78%, and SR 91.44 ± 2.53%.
Chloramphenicol Residues and Bacterial Contamination in Farmed African Catfish (Clarias gariepinus) from Banyuwangi Traditional Markets: A Risk Assessment Ulkhaq, Mohammad Faizal; Kenconojati, Hapsari; Budi, Darmawan Setia; Pardede, Maria Agustina; Loh, Jiun-Yan
Jurnal Medik Veteriner Vol. 7 No. 2 (2024): October
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmv.vol7.iss2.2024.244-254

Abstract

This study aimed to determine chloramphenicol residues and bacterial contamination (Aerobic Plate Count-APC, Escherichia coli count, Salmonella sp., and Vibrio cholerae) in farmed African catfish (Clarias gariepinus) that are marketed in Banyuwangi, Indonesia. A total of ninety samples of C. gariepinus were collected from several markets in Banyuwangi, namely, Kertosari, Blambangan, and Banyuwangi Kota. Using standard procedures, APC, E. coli count, Salmonella sp., V. cholerae, and chloramphenicol residues were determined. 36.37% of samples from Kertosari markets; 23.33% of samples from Banyuwangi Kota markets; and 16.67% of samples from Blambangan markets contained chloramphenicol residues, but less than 0.3 ppb. Only 40% of samples from Kertosari markets, 36.67% of samples from Banyuwangi Kota markets, and 26.67% of samples from Blambangan markets were contaminated by E. coli, but were less than 3 MPNg-1. The highest APC was from Banyuwangi Kota, followed by Kertosari and Blambangan. No samples were contaminated by Salmonella sp. and V. cholerae from any of the markets, and there was no significant difference between all markets in APC, E. coli count, or chloramphenicol residues. All farmed catfish marketed in Banyuwangi were safe to eat because no samples exceeded the maximum chloramphenicol residue and bacterial contaminant standards. Further studies are needed to detect other antibiotic residues used in aquaculture, including tetracycline, sulphonamide, enrofloxacin, and nitrofuran.
Primary and Secondary Sexual Characteristics of Kuhli Loach (Pangio kuhlii) Budi, Darmawan Setia; Restanti, Maya; Suciyono, Suciyono; Müller, Tamás; Kenconojati, Hapsari; Mubarak, Ahmad Shofy
Jurnal Medik Veteriner Vol. 7 No. 2 (2024): October
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmv.vol7.iss2.2024.264-275

Abstract

Kuhli loach (Pangio kuhlii) a popular ornamental freshwater fish species with economic potential, originating from Sumatra, Kalimantan, Java, and Malaysia. The kuhli loach's appeal lies in its vibrant colors and distinctive eel-like body. This study aims to explores the sexual primary and secondary characteristics of the kuhli loach. Conducted at Universitas Airlangga in Banyuwangi, Indonesia, the study involved a thorough analysis of 50 kuhli loaches, evenly split between males and females. Morphological observations revealed significant differences (p < 0.05), such as the elongated body and expanded abdominal region in females, suggesting adaptations for reproduction. Internal examinations, including peritoneal dissections and histological analysis, unveiled distinct stages of spermatogenesis in males and ovarian development in females, providing insights into the reproductive cycle. Meristic and morphometric analyses identified noteworthy differences in pectoral fin rays, suggesting potential roles in reproductive behavior, while other traits exhibited similarity between genders. This study contributes to the understanding of kuhli loach ecology and reproductive biology, highlighting the importance of addressing sustainability concerns arising from the continuous exploitation of wild populations. This study serves as a foundational step towards advancing reproductive improvement in fish and supports the conservation of this unique ornamental fish species, with implications for aquaculture practices and economic considerations.
Sweet Potato Leaf Extract as a Protective Antioxidant: Improving Hematological Health in Ammonia-Exposed Mahseer Fish Anggreani, Shovia Finny; Imlani, Ainulyakin Hasan; Kenconojati, Hapsari; Budi, Darmawan Setia; Suciyono, Suciyono
Jurnal Medik Veteriner Vol. 8 No. 1 (2025): April
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmv.vol8.iss1.2025.89-98

Abstract

The Mahseer fish (Neolissochilus soroides) is a highly valuable aquaculture species due to its economic potential. Currently, this species is being developed in intensive aquaculture systems. As a result, ammonia levels are increasing, which could potentially disrupt the growth and survival of the fish. This study aimed to investigate the effects of sweet potato (Ipomoea batatas) leaf extract supplementation as an antioxidant on the hematological profile of Mahseer fish exposed to NH4Cl. Four supplementation treatments were employed: 0%, 2.5%, 5%, and 7.5%, each with five replicates. The fish were supplemented with the extract for 40 days and exposed 10 ppm NH4Cl for 48 hours. Blood samples were collRected before rearing, after 40 days of supplementation and NH4Cl exposure. The results demonstrated that supplementation with sweet potato leaf extract (SPLE) positively influenced the hematological profile of mahseer. Specifically, higher doses of the extract enhanced immunity across all treatments. Notably, only the highest doses of 7.5% and 5% effectively mitigated fish stress induced by ammonia exposure for 24 hours. Furthermore, there were no significant differences observed among treatments in response to NH4Cl exposure throughout the study period. These findings underscore the potential of SPLE as an antioxidant supplement to bolster immune function and alleviate oxidative stress in mahseer under ammonia exposure conditions. Further research could focus on optimizing the dosage of SPLE to maximize its antioxidant benefits in aquaculture setting.
Dietary Honeysuckle (Lonicera japonica) Extract Enhances Resistance to Infectious Myonecrosis Virus in Whiteleg Shrimp (Litopenaeus vannamei) Subaidah, Siti; Sumarwan, Joko; Marzuqi, Muhammad; Tridjoko, Tridjoko; Slamet, Bejo; Budi, Darmawan Setia; Pardede, Maria Agustina; Ulkhaq, Mohammad Faizal; Imlani, Ainulyakin; Loh, Jiun-Yan
Jurnal Medik Veteriner Vol. 8 No. 2 (2025): October
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmv.vol8.iss2.2025.286-296

Abstract

This study aimed to investigate the immune response of whiteleg shrimp (Litopenaeus vannamei) to prevent infectious myonecrosis virus (IMNV) infection by incorporating Lonicera japonica water extract into artificial feed. A total of 180 whiteleg shrimp were used in four treatment groups (triplicate) receiving different doses of L. japonica extract in their feed, including treatment A (1% w/w), B (2% w/w), C (3% w/w), and D (without supplementation/control). The dietary treatments were applied twice daily for two weeks. On the 15th day, the shrimp were injected intramuscularly at the fifth abdominal segment with IMNV isolates (100 µL/shrimp) and observed for seven days post-infection (dpi). The parameters observed included hemolymph profile, survival rate, gross clinical signs, and water quality. IMNV infection was confirmed through both external clinical signs and PCR tests. The results showed that the addition of L. japonica water extract to the feed improved the survival rate and immune responses of whiteleg shrimp following the IMNV challenge test. In conclusion, dietary supplementation of L. japonica water extract at a concentration of 2% w/w in artificial feed could serve as a preventive agent against IMNV infection in whiteleg shrimp.