![]() Mary
Had a Little Lamb
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Assisting with Difficult Births (Dystocia) In
most cases, ewes give birth without any difficulty or assistance
from the shepherd or a veterinarian. However, sometimes the lambs
are not in the proper position for delivery, or there are other
problems. Normal presentation is the nose and two front legs,
one lamb at a time (A). The most common malpresentation
is when one or more of the front legs is back or the head is bent
back in the birth canal. These are relatively simple for the shepherd
to correct. A lamb presented backwards (back feet) can be delivered
normally, but a breech birth (back legs back, only
tail visible[B]) requires careful intervention. Breech lambs are
usually delivered backwards and care must be taken to make sure
the umbilical cord doesn't cut off the lamb's oxygen
supply before the lamb is out. |
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(A) Normal presentation |
![]() (B) Breech presentation |
![]() (C) Two lambs simultaneously |
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Image
Credits: Ontario
Ministry of Agriculture and Food
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Twin or triplet lambs can sometimes get tangled in the womb or attempt to be born at the same time (C). Care must be taken to figure out which parts belong to which lamb and to re-position the lambs for delivery. Sometimes, a lamb is too big or the ewe's pelvic area is too small for delivery. In this case, the lamb may have to be sacrificed to save the life of the ewe. Sometimes the ewe's cervix fails to dilate sufficiently for the lamb(s) to be delivered. This is a particularly difficult delivery to assist with, and it is possible to lose both the ewe and her lamb(s). Various health problems can compromise a ewe's ability to deliver her lambs normally. Poor management on the part of the shepherd, such as poor breeding decisions, overfeeding or underfeeding, and stress can lead to difficult births.There are also several diseases which can cause a ewe to abort (terminate) her pregnancy or give birth to weak lambs that die shortly after birth. |
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After
a lamb is born, the ewe begins to clean it. Cleaning and licking
is part of the ewe-lamb bonding process. It also helps to dry
the lamb. In many cases, the ewe will clean the lambs in the order
in which they are born. Lambs are helpless at birth, but are usually
able to stand within 30 minutes. Instinct tells them to look for
milk. If a lamb is slow to get up, the ewe will encourage it by
nudging or pawing at it. The lamb usually has its first meal before
it is an hour old. An experienced ewe will try to orient the lamb(s)
in the right direction, since lambs aren't born knowing whether
the udder is in the front or rear of the ewe. The first milk that
the ewe produces is called colostrum. It is very
nutritious and contains antibodies that protect
the lamb from infection during the early part of its life. Lambs
suckle frequently during their first few weeks of life, from 1
to 2 times per hour, for as long as 3 minutes each time. But by
the end of their fifth week, lambs will only be sucking once every
2 hours. |
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Baby
lambs are like other baby animals. They sleep a lot, approximately
8 to 12 hours per day. They like to play with other lambs. They
nibble on things. They are very curious of their surroundings.
They get into trouble. They like to climb on their mothers' backs.
They like to play "king of the hill." They prance around
on all fours when they have room to run. They like to get into
groups and run back and forth in a field or around the pen. They
get tired and take naps. When it's nap time, they will seek their
mother out and sleep as close to her as possible. |
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Last updated 15-Feb-2005 by Susan Schoenian.
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