The kelp grouper Epinephelus bruneus (Perciformes: Haemulidae), is one of the most economically important fishery resources in Korea. This fish is regarded as a target for prospective aquaculture diversification; therefore, maintenance of stock quality is important. To investigate the effects of current artificial reproduction in a hatchery facility, genetic variation in wild-caught broodstock ...

White spot syndrome virus (WSSV) is a pathogen that causes high mortality in shrimp culture in the whole world. Sequence analysis of WSSV has shown similarity of WSSV isolates in different countries with exception of a few variable genomic loci. This study investigated the sequence variation of some Iranian WSSV isolates and previously identified isolates. Samples were collected during target ...

White spot syndrome virus (WSSV) is a pathogen that causes high mortality in shrimp culture in the whole world. Sequence analysis of WSSV has shown similarity of WSSV isolates in different countries with exception of a few variable genomic loci. This study investigated the sequence variation of some Iranian WSSV isolates and previously identified isolates. Samples were collected during target ...

The outbreaks caused by Vibrio spp. are a notable threat to the potential growth of economy penaeid culture, which is still controlled administration antibiotics. At first, infected group was subjected phenotypic bacteriological examination with subsequent molecular identification via 16S rRNA gene sequencing, confirmed four strains spp., V. atlanticus, natriegens, alginolyticus, and harveyi, f...

Gene expression of reproductive system of the black tiger shrimp (Peneaus monodon) has been widely studied to address poor maturation problem in captivity. However, a systematic evaluation of reference genes in quantitative real-time PCR (qPCR) for P. monodon reproductive organs is lacking. In this study, the stability of four potential reference genes (18s rRNA, GAPDH, β-actin, and EF1-α) was ...

The growth of the shrimp industry has been accompanied by an increased incidence of infectious diseases (Bachere 2000). Among them, the White Spot Syndrome Virus (WSSV) has been responsible for high mortality rates worldwide. Currently, there is no specific treatment to control this viral agent, restricting its management to prophylaxis. In fact, the production of a WSSV free stock is one of th...

A simple, rapid PCR assay for the identification of Renibacterium salmoninarum in Atlantic salmon (Salmo salar L.) tissues detected DNA extracted from between 4 and 40 bacterial cells. PCR was at least as sensitive as culture when it was used to identify subclinically infected fish experimentally challenged with R. salmoninarum. However, PCR identified much higher numbers of kidney tissue and o...

Ectoparasites is a type of parasite that generally found infecting the external organs their host's body. Knowledge types parasites and host are reviewed as an effort to control parasitic attacks. This study aimed examine ectoparasites in various brackish aquaculture commodities. Research procedurewereincluding preparation tools materials, sampling, observation clinical symptoms, necropsy, data...

Proximate analyses of broodstock and grow-out feeds for gamitana (Colossoma macropomum) and paco (Piaractus brachypomus) and their constituent feedstuffs were conducted. Literature values for specific nutrients known to affect fish reproduction were calculated from published sources for the broodstock diet. Broodstock eggs have not yet been obtained for proximate analysis. However, similar anal...

abstrac effects of stress due to transportation on the common carp (cyprinus carpio) broodstock from ponds to the hatcheries in three intervals include immediately after the catching, 2 hours for transfer and 24 hours after transportation on changes in levels of cortisol, glucose, sex steroids (testosterone and estradiol) and blood factors were analyzed with sampling from 30 broodstock. results...