Calving is so far.. so good. 22 have calved and 23 calves. One set of twins and one of them was dead on arrival. The dead calf was a heifer twin to a bull calf. Right now, of the 22 running around, we have 11 bulls and 11 heifers, so it could not be more even. So far all have been unassisted and I have not had to touch any or help any get started nursing. They have been very vigorous and healthy at birth. Just the way I like it!
Last spring I implanted 9 embryos sired by the last Shorthorn herd sire at Remitall Cattle Company, a bull named Pheasant Creek Leader 4th. IMO, Leader 4th was the best of the Leader line in the Shorthorn breed. I got lucky and had 7 pregnancies of which 5 have now calved. All 5 are bulls, all are solid red, and polled and their BWs have been between 75 and 88 lbs. The heaviest one at birth was the first born which seems a little strange. These calves are from two different donors but they are almost identical. It will be interesting to watch them grow this summer. I am hoping the last two are heifers. These two flushes used the only remaining semen from this sire, so I am hoping for a couple heifers. I still have a few more embryos in the tank which will be implanted this spring. The ultrasound last August indicated that the two that haven't calved yet were both heifers, so we will see how accurate he was. So far, the only mistake he has made is in saying that one of the recips had not kept the embryo and was bred later. This recip was the second of these to calve.
Normally, I would say that bull calves go longer term than heifers, but that does not seem to carry through with ET calves. I have experienced ET heifers being born 7-10 days after their male full sibs on several occasions.