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This chapter describes the characteristics of traditional breeding systems, polyploidy and transgenics to investigate the effects of genotype-environment interactions on the conformation, behaviour, health and productive performance of salmon, tilapia, catfish, oysters and other aquacultured...
This chapter describes the sexual dimorphism of fishes and the applications of chemical and mechanical sterilization and hormonal sex reversal for the reproductive manipulation of fishes. The effects of environmental factors such as temperature and the genetics, karyotypes, physiology and health of ...
This chapter describes the methods to induce mutations in fishes, including the use of X radiation, chemicals, gene knockout, reverse genetics, gene editing, pluripotent embryonic cell transplantation and embryo injection, and the genetics, growth, reproduction, body composition, bone formation,...
This chapter discusses some basic concepts of gene expression and some more simplified gene expression results in fishes and other aquacultured species, including gene expression and expressed sequence tags; RNA sequencing; gene expression during growth, ovulation, reproduction, diseases, gene...
This chapter describes the history, techniques and applications of gene transfer technology in fishes and other aquacultured species and the specific concepts involved in gene transfer, such as targeted gene transfer; promoters; transgene transmission; transgene expression of growth hormone and...
This chapter describes the concepts involved in the breeding and selection of aquacultured fishes, including dominant and additive gene expression; epistasis; pleiotropy, lethality, penetrance and expressivity; the incidence of deformities; selection procedures and progeny testing.
This article describes the concepts of selection, heritability, phenotypic and genetic variation and selection responses to produce fishes with desirable traits, including higher body weight, improved disease resistance and survival, better reproductive traits, higher body fat percentage and better ...
This chapter highlights the various environmental effects and variations that can affect the phenotype of fish and other aquaculture species which needs to be controlled or corrected. These include age, mortality, stocking density, temperature, water quality, maternal effects, compensatory gain,...
This chapter presented key points regarding polyploidy in fishes and other aquatic and aquaculture species wherein studies showed that very rarely does the induction of triploidy enhance growth in fish, but it is very effective for enhancing growth in shellfish. However, in fish species such as...
This chapter focuses on exploring the links between veterinary healthcare and ecosystems, how registered veterinary nurses can practice more sustainably, and how veterinary professionals can lead and influence their wider communities to address ecosystem crises.