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SRGenetic's High-Health Embryo
Recipients
Your choice of recipient
animals to use for embryo transfer can have a great influence on the success of your ET
program.
SRGenetics can
often provide you with embryo recipients. These highly selected ewes are synchronized, used
for the surgery, kept on site for up to 60 days, pregnancy tested twice and then sold to you as
guaranteed pregnant animals.
The age, breed, period since
last lambing, and health of recipients all affect the success of establishing
the pregnancies.
Recipient health can affect
the ET program in two ways. Embryo and lamb survival is highest in high-health recipients
- the same higher fertility that occurs in high-health flocks. But the added
bonus is that embryos are free from production diseases that are common to the sheep industry.
Bacteria and viruses causing disease are "washed" off the embryo during the
laboratory handling. By using high health recipients the lambs born from these disease-free embryos
will themselves be free of disease. What a great added value to an ET program and
what a waste to loose that advantage by choosing poor recipients.
The recipient ewes that
SRGenetics make available are test negative for Maedi-visna. The flock is free of Johnes disease,
Caseous lymphadenitis, foot rot, ecto parasites and abortion diseases. The breed
is Rideau Arcott, either pure or crossed with Polled Dorset or East Friesian.
Your cost for these ewes
includes a usage fee and a cost of purchase (market value). The usage fee is
$200 and covers:
 | The production loss of
keeping the ewes open and available for ET - at some times of year this
means keeping the ewes off production for many months |
 | Cost of drugs and time for
synchronization |
 | Boarding from first
synchronization until pregnancy tested at and up to 60days |
 | Ultrasound pregnancy testing
- twice |
 | The loss of production to
SRGenetics of those that don't become pregnant (generally at least one third of those used
for ET) |
 | The surgical
insult that occurs with the use of the procedure for those that don't get
pregnant and are retained in the flock - you can only use them so many times
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 | An allowance for the
ewes that are not used for ET. A proportion (up to 25% in some cases) fail to
respond to the drugs that bring them into a successful heat. Those are pulled
out of production, receive all the drugs and undergo the laparoscopic
procedures. You are not charged for those animals. |
Benefits to
you of using recipients from SRGenetics
 | High health for your embryos and for
your flock |
 | Genetics designed for multiple birthing
and high milk production - improve the 50 day weights of your ET lambs |
 | Excellent for out-of-season programs |
 | No synchronization program for you to
manage |
 | You purchase only the pregnant animals |
 | No cost of transport of animals to
SRGenetics |
 | Convenience of having recipient animals
available and on site |
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