I think there are many reasons we see so many leave the Animal Science major. 1) I see a lot of universities hiring really, really young professors lately that have NO practical experience in the field they are teaching. Not having any practical experience other than their coursework, they dont know how to effectively teach students and prepare them for careers after graduating. I know the school I am currently at has that issue with a professor. I feel that before someone becomes a professor they need to spend some time out in the industry working, so that they are better able to know what the industry expects out of their students. And by the way, I dont feel that having 20-30 cows growing up, or feeding a pig every yr for the county show or to put in the freezer counts as practical experience. I am talking about really being involved in the industry. A college professors job is not only to teach a course matter, but also ensure that when those students graduate they are prepared and capable to work in that industry. 2) With so many different beliefs, points of view, ways of doing things, I have found that many places, especially livestock production oriented, would rather hire someone with no educational background in production so that they can train and teach them in the beliefs of the company. They seem to be much more happy to just hire someone with Farm Management type background without a lot of production oriented coursework. 3) Even in the biggest production oriented companies, they dont need all their employees to have degrees. Most of the work to do there is general labor, maintenance type stuff that they can hire non-degreed persons to do. The industry just doesnt have a great need for Animal Science majors alone. I personally just added a minor in Marketing, my major is Animal Science and I plan to pursue graduate work focusing in Repro, but for any company their greatest needs are marketing their product, it doesnt matter how great of a product they develop or produce, it is a dead end deal if their product isnt marketed appropriately.
I guess in summary I can say that I feel that the Animal Science Courses are very beneficial, but you really need some other types of courses in there, Management, Marketing, Leadership, Communications, Human Resources, etc.
As far as AI and ET, I would agree major in Ag Leadership if you want to teach, and take those animal science/repro courses as electives. Get certified in both. Not all states are requiring that you be a vet to do AI work for pay yet, some are, but all require you to at least be certified as an ET tech to do it for pay. Also, most companies that are selling embryos will not guarantee any pregnancy if the embryos are not put in buy a certified person.