You know a ewe is about to lamb by physical and behavioral changes: her udder fills with colostrum, teats get firm/distended, and vulva swells and reddens, while she becomes restless, separates from the flock, paws the ground, and may look hollowed-out near her hips as the lamb drops, indicating labor is imminent within hours to days.
There are several signs that a ewe is going into labor. She may appear hollow just in front of her hips. Her vulva will be bright pink and her udder will be swollen and teats distended. A ewe in early labor will stay on her feet, walking, shifting her weight from side to side, arching and stretching her back.
If the ewe's back end is shaped like the left side of an 8 with the rounded bulges of the vulva and the udder, she is really close to lambing. The teats are usually pointing to the sides as well. The bright, deep, hot pink color is the best indicator of lambs arriving soon.
Fig 6: Early first stage labour - there are periods of increased activity with abdominal contractions lasting 15-30 seconds. There are various behavioural changes including the ewe frequently does not come to the feed trough or leaves early before other sheep in the group.
SIGNS OF PREGNANCY: 3 weeks later: the ewe does not come into heat. 6 weeks later: the vulva shows an enlargement. 12 weeks later: the abdomen enlarges, she looks calm and walks slowly.
One of the most striking signs is the swelling of her udder as it fills with milk in those final days before delivery. You may also notice that the ligaments around her tailhead relax, giving her tail a more flexible appearance.
Pregnant women and those who may be immunocompromised due to a medical condition or chemotherapy, and who come into close contact with sheep during lambing may risk their own health and that of their unborn child, from infections which can occur in some ewes.
After mating, sheep have a gestation period of around five months. Within a few days of the impending birth, ewes begin to behave differently. They may lie down and stand erratically, paw the ground, or otherwise act out of sync with normal flock patterns.
Autumn lamb becomes available after Spring lamb during the period from July to January until 11 months old.
The first stage of labor is the longest stage. For first-time moms, it can last from 12 to 19 hours. It may be shorter (about 14 hours) for moms who've already had children. It's when contractions become strong and regular enough to cause your cervix to dilate (open) and thin out (efface).
To assist, restrain the ewe or doe with a halter, wash the vulva with a warm soap solution, put on an OB sleeve, and generously lubricate the OB sleeve. Insert the hand into the vulva to determine the position of the fetus, adjust the presentation, and gently pull the lamb or kid.
Her vulva will be dilated. She will appear a bit hollow just in front of her hips, and she'll be not as wide and full over the rump, because the musculature there will have relaxed.
Look for a pattern of contractions that gets closer together over time. Labor contractions generally are 2 to 5 minutes apart. Braxton Hicks contractions may come and go without a pattern.
Signs of impending lambing
About 10 days before the ewe will lamb, the teats begin to feel firm and full of colostrum. Between then and lambing, the lips of the vulva slacken and become slightly swollen. In the last hours before lambing, many ewes will separate from the flock.
It is common practice to separate the rams and ewes after six to eight weeks – long enough for the ewes to go through two oestrus cycles. Sheep carry their lambs for approximately 145 days.
A belly full of warm milk from momma and a dry fleece are all they need to survive and thrive. They do much better being born in dry 5 degree weather than on a wet 50 degree day. Another 'nail in the coffin' of outdoor lambing is predators.
Simply put, it's the period when female sheep (ewes) give birth to their lambs. In fact, in the UK, around 16 million ewes give birth every year! It runs from November to May, with a peak between February and March.
A ewe will produce her largest litter of lambs when she is between three and six years old. Most breeds of sheep only come into season once every 12 months, so each animal is only likely to produce one to two lambs during each year.
Pregnant women who come into close contact with sheep during lambing or other farm animals that are giving birth may risk their own health, and that of their unborn child, from infections that such animals can carry.
As active labor approaches the ewe will usually become restless and may separate herself from the flock. She will begin to pace in an area and paw at the ground to make the area comfortable for her (in the photo below you can see Kathleen has moved to the back of the stall, away from where Izzy and Luna are lying).
In a 1st pregnancy, the time from the start of established labour to being fully dilated is usually 8 to 18 hours. It's often quicker (around 5 to 12 hours), in a 2nd or 3rd pregnancy. When you reach the end of the 1st stage of labour, you may feel an urge to push.
avoid contact with aborted or new-born lambs and with the afterbirth, birthing fluids or materials (e.g. bedding) contaminated by birth fluids; avoid handling clothing, boots, etc which have come into contact with ewes or lambs.
Sports and activities to avoid while pregnant
Any competitive sports where you have to move your body in a way that may not be safe. Activities with unsafe environments — such as spas, hydrotherapy pools or 'hot' yoga. Activities that involve heavy equipment — such as weightlifting, skiing and scuba diving.
This productive strategy is counter-evolutionary, as ewes frequently conceive during early lactation, when they have a low body condition and are investing energy resources nursing their offspring.