1. Gene transfer through embryo manipulation;Ebert,1989
2. Insertion of growth hormone genes into pig embryos;Pursel,1989
3. Genetic engineering of livestock;Pursel;Science,1989
4. Characterization of transgenic livestock production;Pinkert;Dom. Anim. Endocrin.,1990
5. Changes in domestic livestock through genetic engineering;Ebert,1991