A retrospective whole-population survey was used to investigate putative risk factors for bacterial gill disease (BGD) in young hatchery-reared rainbow trout in North America. Three sets of analyses were done. The first analysis included as cases all of the hatcheries in which there was at least one outbreak of BGD during the 2-year study interval, regardless of location of the outbreak in the ...

Maintaining viable populations of salmon in the wild is a primary goal for many conservation and recovery programs. The frequency and extent of connectivity among natal sources defines the demographic and genetic boundaries of a population. Yet, the role that immigration of hatchery-produced adults may play in altering population dynamics and fitness of natural populations remains largely unqua...

In the first experiment, conducted in a research facility, Litopenaeus vannamei broodstock were fed either a 100% fresh food control treatment (FRE, consisting of frozen squid, oyster, mussel and enriched Artemia biomass in a 2.3:1.4:1.3:1 dry matter ratio) or one of the two treatments in which 50% [dry matter (DM)] of the fresh food was substituted with experimental artificial diets: a dry die...

probiotics are beneficial microorganisms which will be considered as alternatives to antibiotic growth promoters.the aim of the present study was to investigate the effect of probiotic administration in hatchery on performance, blood parameters and immune response of broilers. three hundereds 1-d-old male chicks (ross 308) were assigned to five experimental groups of three replications. birds o...

24 Background: There are no set specific IgE (sIgE) to predict shrimp allergy as cross25 reactivity with other arthropods play a role in shrimp sensitization. 26 Objective: This study identifies the allergens associated with shrimp allergy in house 27 dust mite (HDM) and non-HDM sensitized patients. 28 Methods: Patients with shrimp sensitization (positive skin prick test [SPT] and/or sIgE) 29 w...

The thermal stability and IgE binding of raw and boiled shrimp extracts and the tropomyosins (TM) have not been reported. In this study, we compare the stability of raw and boiled shrimp TM of Litopenaeus vannamei and evaluate how boiling may alter the allergenicity of L. vannamei. Extracts were prepared from raw and boiled shrimp and analyzed by sodium dodecyl sulfate-polyacrylamide gel electr...

Shrimp aquaculture is playing a vital role in Malaysian agriculture, especially its increasing contribution to economic growth. White shrimp aquaculture is not only the key player in brackish water shrimp aquaculture but also the largest contributor to Malaysian shrimp aquaculture. This study estimates technical efficiency and investigates factors affecting technical inefficiency of Malaysian w...

—Allelic variation at 10 DNA microsatellite loci was assayed in scale samples of steelhead Oncorhynchus mykiss (n 5 333) collected between 1976 and 2003 from the lower main stem of the Kitimat River, British Columbia. Our objectives were to (1) investigate the genetic diversity of wild steelhead populations in the river before hatchery stocking began in 1984 (baseline samples: 1976–1977, 1983–1...

This study was conducted to investigate the bacterial contamination of air and the surface of equipment and facilities in hatchery. In addition, the inhibitory effects of formaldehyde application methods on aerosol bacterial counts in the hatchers were also investigated. In the operating hatchers, the contamination of air by aerobic bacteria, coliform, and fungi was high, measuring over 300 cfu...

This paper describes a demonstration of the SHriMP visualization tool. SHriMP provides a flexible and customizable environment for exploring software programs. It supports the embedding of multiple views, both graphical and textual within a nested graph display of a program’s software architecture. SHriMP has recently been redesigned and reimplemented using Java Bean components. These APIs allo...