The Gene and the Stable Door: Biotechnology and Farm Animals
A report for Compassion in World Farming Trust, 2002
Moral and Ethical Aspects of Genetically Engineered and Cloned Animals
Pew Initiative on Food and Biotechnology Workshop Proceedings, January 2005
Animal Cloning and the Production of Food Products: Perspectives from the Food Chain
Pew Initiative on Food and Biotechnology/FDA Conference Proceedings, September 26, 2002
Animal Biotechnology: Science-Based Concerns
National Academy of Sciences Report, 2002
Somatic Cell Nuclear Transfer (Cloning) Efficiency
Compilation of studies indicating inefficiency of animal cloning
"Science and Technology of Farm Animal Cloning: State of the Art"
By Gábor Vajta and Mickey Gjerris
Animal Reproduction Science, Pages 211-230, May 2006