Oops… or, Another Lesson Learned

We have bred our sheep and had successful lambing seasons for 6 years. This fall breeding season, however, turned out to be a learning experience for us.

Usually at 3 months our lambs are separated from their dams for weaning. After 2-3 weeks we move the ewe lambs back to the pasture with the adult ewes. The ram lambs go in the pasture with our adult rams and wethers. For some reason (I can’t remember why right now), we let ALL the lambs go back to the pasture with their dams for the summer.

On October 13th, we took all the ram lambs away from the ewes because we saw some *frisky* behavior going on.  We had decided to put our rams in with the ewes in early November so that we wouldn’t have lambs until April.  We separated our rams so that Ezra and Camille we together in one field (Camille is our only ewe that Ezra is not related to), and Raulie was with Annie, Abigail, Bertha, Beatrice, Erin and Esme.  We put all the lambs in a 3rd field with our wether BFL and goat.

{Some background info on sheep breeding… We put breeding harnesses that hold crayons on our rams each breeding season.  When the ram mounts the ewe the crayon on the harness rubs on her rump.  We then have  visual evidence of breeding and can mark our calendar accordingly so we can calculate when any lambs will be born.  Sheep cycle ever 14-18 days, therefore, you should change the color crayon in your ram’s breeding harness every 14-15 days.  If a ewe is marked with the second color, this means she did not conceive during the 1st cycle.  Any ewe that did conceive in the 1st cycle will not cycle again and the ram will not have any interest in mounting her.}

After 2 weeks of rams and ewes together, not one of the ewes was marked with color on their rump.  We usually breed in October, I started to wonder if we missed our window of opportunity, but I didn’t really think that was the case because we have had rams breed ewes though December.  Since none of the girls were marked, I didn’t bother changing crayon colors for their next cycle.  Two more weeks with nothing, and during that time I started thinking that we left the ram lambs in with their dams too long because the adult rams were not mounting the ewes at all.  You’ll remember that we did see some frisky behavior earlier in the fall, but we didn’t witness any actual breeding.

Now that we’re in the New Year, we are anticipating a surprising lambing season because we think our ewes are pregnant, but we don’t have any idea when they are due.  We guess that any lambs will be born BEFORE mid-March since we took the ram lambs away from the ewes in mid-October.  Unfortunately this lamb crop will not be able to be registered, but we will look forward to the lambs anyway!!

Seasonal Ram Changes

Autumn is here and that means we will be breeding our sheep soon.  I really find it amazing how rams change during the late summer and early fall in preparation for breeding.

Above are 2 photos of our newest ram, Raulie.  The photo on the left was taken when we got him in April and the one on the right is from yesterday (September 30th).  You can immediately see differences in his facial features – his face is more wrinkled and swollen now.

As soon as you come close to (most) breeding rams, you will notice a major change in them … their scent.  Most rams smell musky during breeding season (or rut) – and some smell more than others.  Sheep have scent glands between their toes and next to their eyes.  You can see in the above photo how the scent glands next to Raulie’s eyes have increased in size to produce the musky odor that comes with the breeding season.

The ram’s olfactory sense is heightened during rut so that he can more easily detect when a ewe is in estrus (heat).  To accommodate this, the nasal passages swell so that the surface area is increased.  Sheep also have a specialized organ above the roof of their mouth called the vomeronasal organ that aides in their sense of smell.  When the ram smells the ewe, he breathes into his nose and mouth.  Her scent is picked up by his olfactory cells and the vomeronasal organ and he raises his head and curls his upper lip (this is called the Flehmen response).

Isn’t it amazing how these animals were created so that their bodies change with the seasons?!