Fish Breeding Articles

  • Transgenic fish are ready for us. Are we ready for them?

    After decades of regulatory and legal challenges, AquaBounty aims to bring genetically engineered salmon to U.S. and Canadian markets next year. On a hill above the cold waters around Prince Edward Island, technicians painstakingly create fertilized Atlantic salmon eggs that include growth-enhancing DNA from two other fish species. The eggs will be shipped to ponds in the high rainforest of ...


    By Ensia

  • Aqua feed - CP Namnoi - Case Study

    CP Namnoi in Thailand installed two compact Aerox-Injectors to treat the odours coming from four aqua feed production lines. CP Namnoi is the largest aqua feed company worldwide. They have many factories in many countries focusing on Asia. A shrimp feed factory in the south of Thailand produces shrimp feed on four production lines. ...


    By Aerox B.V.

  • Biological water treatment in aquaculture by means of “Mutag BioChip™ RAS Process“

    Aquaculture or fish farming means the artificial breeding and raising of aquatic creatures. They include fish as well as crustaceans and shellfish, which are raised and stocked under controlled conditions by using techniques and technologies offering an increased level of productivity which cannot be realized under natural conditions. Due to the increased demand for freshly caught fish and ...


    By Multi Umwelttechnologie AG

  • For lively fish in the water Oil-free generation of oxygen at fish farm - Case Study

    For 30 years, trout have been cultivated at the Winkelmann farm in Wietzendorf (Lower Saxony), southeast of the city of Soltau. What started out as a hobby ultimately became a business. Since then, the main goal has been the preparation of fish eggs, caviar (roe). The female trout are brought up in concrete semi-circulating basins and slaughtered after 26 to 29 months as salmon trout. The annual ...

  • Fishing for a Solution

    As writer Rowan Jacobsen explores in our recent feature “Has Meat Met Its Match?,” animal agriculture’s hefty environmental footprint is creating interest in exploring ways to meet humans’ growing appetite for animal protein that extend beyond beef, chicken and pork. In some places, that ...


    By Ensia

  • A spatially and temporally explicit risk assessment for salmon from a prey base exposed to agricultural insecticides

    This risk assessment applied a framework for determining probable co‐occurrence of juvenile spring Chinook salmon (Oncorhynchus tshawytscha) with agricultural pesticides in the Willamette Basin, Oregon (Teply et al. this issue) to characterize risk to the threatened population. The assessment accounted for spatial and temporal distribution of 6 acetylcholinesterase‐inhibiting insecticides in ...


    By John Wiley & Sons, Ltd.

  • A spatially and temporally explicit model for determining the exposure of juvenile salmon to agricultural pesticides in freshwater

    In this paper, we present a novel approach for determining the probable co‐occurrence of juvenile salmon or steelhead with agricultural pesticides and apply it to spring Chinook (Oncorhynchus tshawytscha) salmon in the Willamette Basin, Oregon. We adapted a published exposure analysis framework by explicitly considering fish migration among habitat units and assuming that habitat use is ...


    By John Wiley & Sons, Ltd.

  • Aquaculture case study

    Customer: USDA-ARS Catfish Genetics Research Unit,USA Casey C. Grimm from the Southern Regional Research Centre New Orleans, USA. This research was executed by Ph.D. Paul V. Zimba from the USDA-ARS Catfish Genetics Research Unit, USA and Casey C. Grimm from the Southern Regional Research Centre New Orleans, USA, utilizing the LG Sonic ultrasound technology in channel catfish production. An ...


    By LG Sonic

  • AZUD solutions to fish farms

    All the elements in the exploitation guarantee that larvae, the juvenile and adult breeding of bivalves keep the quality conditions inside the correct values, which allow a high reproduction and growing rates. ...


    By Sistema Azud, S.A.

  • Outcrossing in early-stage spring wheat breeder seed development

    Outcrossing (OC) during the initial stages of spring wheat (Triticum aestivum L.) breeder seed development ('head-rowing') may lead to off-types appearing in later generations of pedigreed seed. The objective of this research project was to measure OC in a simulated short (1.3 m) breeder row nursery of spring wheat. Rows of four cultivars known to differ in OC potential were grown at up to 12 ...

  • Hierarchical multiple-factor analysis for classifying genotypes based on phenotypic and genetic data

    A numerical classification problem encountered by breeders and gene-bank curators is how to partition the original heterogeneous population of genotypes into non-overlapping homogeneous subpopulations. The measure of distance that may be defined depends on the type of variables measured (i.e., continuous and/or discrete). The key points are whether and how a distance may be defined using all ...

  • Spanish Fish Farmer chooses LIT

    Spanish fish farmer chooses LIT-UV Isidro de la Cal is a Spanish group of companies that are active in the fish industry. The company controls the entire process of farming, capturing, processing and finally selling the end product to the stores where consumers buy the various fish products. The fish that is processed by Isidro de la Cal comes from various national, mainly Galician, and ...

  • Breeding and use of summer-dormant grasses in Southern Australia, with special reference to phalaris

    The adaptation of introduced perennial grasses in southern Australia expanded with the discovery of the Mediterranean grass phalaris (Phalaris aquatica L.) as a valuable pasture species, and the introduction of Mediterranean ecotypes of orchardgrass (Dactylis glomerata L.), and tall fescue [Lolium arundinaceum (Schreb.) Darbysh.] displaying summer dormancy. In contrast, native grasses of ...

  • Ancestral landraces of common bean from the South of Europe and their agronomical value for breeding programs

    Selection among breeding lines has been widely used to identify important cultivars and favorable alleles for adaptation, and resistance to abiotic and biotic stress. The objective of this work was to study the variability among common bean breeding lines selected from ancestral landraces, to evaluate the reaction of these lines to anthracnose (ANT) rust, common bacterial blight (CBB), halo ...

  • The inheritance of cold tolerance and turf traits in a seeded bermudagrass population

    Low temperature tolerance is a principal factor limiting the use of seeded bermudagrass [Cynodon dactylon var. dactylon (L.) Pers.]. Therefore, increasing the winter tolerance of seeded bermudagrass cultivars has been a goal of turfgrass breeders for many years. Breeding methods for developing cultivars with increased tolerance to cold temperatures and superior turf characteristics could be ...

  • Genetic diversity and relationships among 177 public sunflower inbred lines assessed by trap markers

    This study investigated the genetic diversity and relationships among the 177 public sunflower (Helianthus annuus L.) inbred lines developed and released by USDA-ARS from the 1970s to 2005 using the target region amplification polymorphism (TRAP) marker technique. Twelve primer combinations generated a total of 230 polymorphic markers that could discriminate each of these lines, suggesting that ...

  • AFLP discrimination of native north American and cultivated hop

    Hop (Humulus lupulus L.) is cultivated for the female flowers, or 'cones,' which traditionally have been used as a bittering and flavoring agent in beer. Hop breeding historically relied on relatively simple selection techniques within established breeding lines. Supplementing current breeding material with new genetic sources would enhance a hop breeder's ability to select for new traits. The ...

  • Genomewide selection for rapid introgression of exotic germplasm in maize

    The length of time needed for prebreeding in adapted x exotic maize (Zea mays L.) crosses has deterred breeders from exploiting exotic germplasm. My objective in this study was to determine, by simulation, the usefulness of genomewide selection for the rapid improvement of an adapted x exotic cross. I simulated F2, BC1, and BC2 populations from an adapted x exotic maize cross. The adapted inbred ...

  • Portugal: P. Japonicus shrimp venture breeds profits

    An experimental venture into the P. Japonicus shrimp business has yielded good profits. The shrimp’s market prices are four times better than for P. vannamei , more common in Portugal. The owner believes water quality management is critical. He uses only AIRE-O2® aeration. He explained, 'This species digs into sand and only comes out at night to feed. At night, we need the best environment in the ...

  • High Power Drives for Vineyard

    High Power VLT® AQUA Drives supply the vertical turbine pumps for two main water supply wells at Seven Hills Vineyards in Milton Freewater, Oregon.The two main water supply wells consist of one 250 kW vertical turbine pump and one 630 kW vertical turbine pump. The 250 kW pump can deliver water to the east and middle ponds, while the 630 kW pump can deliver water to all three ponds. Both pumps ...

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