Re: [blackbelly] Ewe Pregnant Twice?

2007-04-10 Thread Terry
If I recall, Sheep have two horns to the uterus. And like many animals with
such an arrangement, one can maintain a pregnancy in one horn while 'expelling'
a pregnancy in another. Nature's redundancy can be helpfull this way. Many
rabbit breeders I  communicate with indicate that the need to  remove the doe
immediate after breeding to a buck is to help prevent two pregnancies from
occurring within such a short period of time, that the labor from the first
pregnancy causes a premature birth of the later pregnancy! Animals that
'litter' are especially prone to multiple age birthings- youmay be able to find
dog breeders that can tell you tales of such litters-- where part of the litter
was definitely 'older' than the rest. Stimulation ovulators also have the
ability to develop pregnancies that are of differing ages when exposed to males
with strong drives.
 Also, sometimes, in mammals  with one room in the uterus, a twin will be
born prematurely/aborted due to some injury or defect, while the healthier one
is retained. My younger brother was a retained twin--

Terry W

--- Mary Swindell [EMAIL PROTECTED] wrote:

 Does anyone know if there is a chance that a ewe can lamb twice?  Is 
 it possible that she could have maintained a pregnancy with other 
 lambs after birthing one fully developed lamb early?  The first lamb 
 was born March 13, so this is almost a month later.  Honestly I would 
 call the vet, but there is nothing here to make me think this ewe is 
 unhealthy.  I am completely stumped.
 
 Mary Swindell
 
 
 
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[blackbelly] Ewe Pregnant Twice?

2007-04-08 Thread Mary Swindell
Breeder Friends,

I hope you can help me with a strange problem.  I have a ewe who gave 
birth to a large (6.75 lb.) and healthy single ram lamb on March 
13th.  Her earliest possible 5-month due date was April 1st, so this 
lamb was 18 days premature.  My ewe had no milk at all.  After 
keeping the lamb with her for a week and switching to bottle feeding 
him, we finally grafted him onto another ewe who also had a large 
single lamb, also had plenty of milk.  So far, so good.  Both lambs 
are now large and healthy.

However, back to the first ewe.  We did a manual exam to determine 
that there were no other lambs inside her, two days after he was 
born.  She was not dialated much, so the exam was perhaps not as deep 
or thorough as it might have otherwise been.  I also put her on 
procaine pennecillan G for 5 days, as a precaution to make sure that 
no infection set in just in case there was something else inside her, 
since we were not sure why she gave birth so prematurely.  We kept 
her in the lamb pen with her lamb during that time, and then let her 
out to pasture with the other ewes.

I have kept my eye on this ewe ever since that time.  This girl seems 
to be gaining weight each week, to the point where she looks very 
pregnant, as if she could deliver twins any moment.  Her udder is 
still not bagging up, but she is beginning to walk like ewes walk 
(back legs slightly apart) in late stages of pregnancy.  She appears 
healthy, and is eating and drinking just fine.  But she has often 
come back into the barn by herself to stand near the lamb jugs where 
the new mothers and newborn lambs are kept, as if she is looking for her lamb.

This morning again I shooed her out of the barn two or three 
times.  She doesn't seem to care about being with the rest of the 
flock right now -- she is acting just like a ewe about to give birth, 
and she certainly looks like it too.

Does anyone know if there is a chance that a ewe can lamb twice?  Is 
it possible that she could have maintained a pregnancy with other 
lambs after birthing one fully developed lamb early?  The first lamb 
was born March 13, so this is almost a month later.  Honestly I would 
call the vet, but there is nothing here to make me think this ewe is 
unhealthy.  I am completely stumped.

Mary Swindell



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