Hi Brooke,
Happy to help. A NILE Merit Heifer would be entered in AET as a capital gift. Your student will find this in "finances" then "non cash entries", then "receive a gift - non-current/capital gift". From here, the screen defaults to breeding livestock and your student can fill out the rest and place an estimated value on the heifer.
Does your student have multiple breeding heifers/cows, or just the NILE Merit Heifer? If they are just managing a single breeding animal, the breeding manager isn't necessary. If they're managing multiple dams, sires, and offspring, the breeding manager can be very helpful. Happy to connect with you virtually to share in more detail.
Ben