Recommendations, Part 2

摘要

Last month I started a list of readers' questions about why I make certain recommendations. Here is a continuation of that list:Composite bulls? The use of composite bulls makes crossbreeding simpler. In my youthful exuberance, I imagined designing crossbreeding programs to achieve and maintain very high levels of heterosis. Upon becoming a manager, I discovered my lofty ideals to not be fully aligned with other objectives.