Abstract
The uses of breeding programs for the Pacific white shrimp [Penaeus (Litopenaeus) vannamei] based on mixed linear models with pedigreed data are described. The application of these classic breeding methods yielded continuous progress of great value to increase the profitability of the shrimp industry in several countries. Recent advances in such areas as genomics in shrimp will allow for the development of new breeding programs in the near future that will increase genetic progress. In particular, these novel techniques may help increase disease resistance to specific emerging diseases, which is today a very important component of shrimp breeding programs. Thanks to increased selection accuracy, simulated genetic advance using genomic selection for survival to a disease challenge was up to 2.6 times that of phenotypic sib selection.
Highlights
Shrimp production is an important activity both in economic terms and from the perspective of its contribution to human nutrition
Alternative programs which combine mass selection in communally raised animals with recovery of family identification using DNA markers have been used in order to perform mating that avoids excessive increases in inbreeding rates and to select animals in the presence of disease, allowing natural selection to Genomic selection in shrimp act toward increased genetic resistance (Rocha, 2012)
As vaccination is not an option in shrimp and management contention measures are frequently unfeasible, genetic selection is considered a possible option in fighting many diseases in P. vannamei and other shrimp species
Summary
Shrimp production is an important activity both in economic terms and from the perspective of its contribution to human nutrition. The most important shrimp production regions in the world are located in Asia, principally China, India, Vietnam, Indonesia, and Bangladesh, and in the Americas, primarily in Ecuador, Brazil, and Mexico (Food and Agriculture Organization of the United Nations [FAO], 2014). The increasing importance of disease to shrimp farming worldwide has stimulated research for developing breeding programs for increasing disease resistance/tolerance to disease. Evidence for successful selection for disease resistance exists in shrimp for Taura virus and other diseases (Cock et al, 2009; Lightner et al, 2012). Genomic selection in shrimp act toward increased genetic resistance (Rocha, 2012). Other programs have used experimental challenges combined with mass selection in successive generations and obtained increases in the genetic resistance to White Spot Syndrome Virus (Cuéllar-Anjel et al, 2012)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
