Related Experiment Videos
Making transgenic livestock: genetic engineering on a large scale.
1Gene Evaluation and Mapping Laboratory, Agricultural Research Service, U.S.D.A., Beltsville, Maryland 20705.
Journal of Cellular Biochemistry
|June 1, 1992
Summary
Introducing foreign genes into livestock is feasible but inefficient. Improving transgene integration and gene construct design is key to realizing the full potential of transgenic animals for research and production.
Area of Science:
- Agricultural Science
- Genetics
- Biotechnology
Background:
- The feasibility of creating transgenic cattle, goats, pigs, and sheep has been recently established.
- Current research focuses on enhancing growth efficiency and mammary gland expression of pharmaceutical proteins in these species.
Purpose of the Study:
- To review the current state and challenges of producing transgenic livestock.
- To identify key areas for improvement in efficiency and predictability.
Main Methods:
- The study reviews existing strategies for producing transgenic livestock, drawing parallels with mouse models.
- It highlights obstacles such as low embryo viability, transgene integration rates, and high costs.
Main Results:
- Producing transgenic livestock is significantly less efficient than in mice due to scale and biological barriers.
- High project costs, often exceeding hundreds of thousands of dollars, are a major concern.
Conclusions:
- Improved understanding of transgene integration mechanisms is crucial for enhancing efficiency.
- Realizing the full potential requires reproducible gene constructs and a clearer understanding of genetic control over physiological processes.
- Emerging technologies may offer solutions within the next decade.