Production of Transgenic Pigs Containing the Gene Encoding Human Insulin-Like Growth Factor I (IGF-I) Under Control of the Bovine a-Lactalbumin Promoter and Regulatory Regions


The present invention relates to animals that express exogenous growth factors in their milk, and in particular to pigs that express exogenous IGF-I in their milk. The present invention also relates to methods for increasing piglet weight gain and intestinal lactase activity. The present invention thus provides a method of facilitating piglet development and decreasing piglet mortality.