|
|
|
Display category headings
Research Project:
Utilizing Genetics for Enhancing Cool and Cold Water Aquaculture Production
Location:
Cool and Cold Water Aquaculture Research
Project Number: 1930-31000-003-00
Project Type:
Appropriated
Start Date: Mar 27, 2001
End Date: Apr 30, 2005
Objective:
To increase production efficiency, genetic improvement of rainbow trout lines will be conducted. Variation in traits of economic importance such as growth, feed efficiency, and disease and stress resistance will be characterized. The genetic and environmental components of variation will be partitioned and genotypic and phenotypic relationships between traits determined in order to make simultaneous progress in multiple traits. Make all-female lines and sterile offspring with rainbow trout lines to define the impact of genetic background and reproductive control on production efficiency.
Approach:
To define genetic variation in economically important traits, full and half-sib families of rainbow trout will be produced, reared under common environmental conditions, and physiological variation partitioned into genetic and non-genetic sources. Assays to score and evaluate performance traits will be developed and utilized to more precisely define the basis for the variation observed. Additionally, the importance of environmental variation and genotype by environmental variation will be determined by growing the families over several different environments. Superior families will be selectively bred based on genetic analyses with multi-trait models to allow concurrent progress with several traits. Early embryos from crosses will be shocked to produce gynogenetic females for development of all female lines, and tetraploid individuals for eventual production of sterile triploid fish.
|
|
Publications
| Related National Programs |
|
|
|
|
Email this page
