07/11/07
Ease of management, early lambing and superior eating quality
of finished lambs are just some of the attributes of the Oxford
Down which has kept Andrew Rutherford faithful to the traditional
British breed for the last two decades.
Lleyn ewe with Oxford cross lambs.
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While the Oxford Down is classified as a minority breed by the
Rare Breeds Survival Trust, renewed interest in traditional breeds
of sheep and cattle has led to an increase in numbers and there
are now 70 pedigree flocks in the UK.
Andrew is adopting the latest in technology to improve his Oxford
Down flock by performance recording all ewes and rams as well as
by speeding up genetic progress with embryo transfer to improve
progeny both for sale and rams for use on the commercial flock
of 500 Lleyn ewes.
The MV accredited pedigree flock is run on the 360-acre Guards
Farm, Gretna, which lies between the Rivers Sark and Esk as they
enter the Solway Estuary.
The pedigree Oxford Langrigg flock was established in 1987 alongside
a pedigree Suffolk flock of the same prefix founded in 1949, a
common practice at the time among Suffolk breeders, using the Oxfords
to sweep up any late ewes.
Both flocks were lost in the 2001 foot and mouth epidemic with
the pedigree Suffolks numbering 120 ewes and the Oxfords about
60 ewes.
Oxford Down ewes
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Testament to the popularity of the Oxford, Andrew, who farms with
his parents Robert and Winnie and sister Jane, re-stocked with
Oxfords with the flock at 40 purebreds now outnumbering the Suffolks
at 25 ewes.
The replacement flock was founded from the purchase of females
from Yorkshire breeder Geoff Riby’s celebrated Ribwood flock.
Andrew, the Oxford
Down Sheep Breeders’ Association immediate
past president, hopes to build on the bloodlines to make the flock
as successful as in the 1990s when rams were selling up to 450gns
at Kelso Ram Sale.
Andrew has performance recorded the pedigree flocks for a couple
of years. “It’s interesting to see that there is quite
a variation even in such a small gene pool on measurements such
as muscle and fat depth which I am particularly interested in when
using the rams commercially,” said Andrew.
“While currently there are few Oxford flocks which are recorded,
I am trying to buy rams from a variety of bloodlines which I can
evaluate within my flock.
“I’m looking to improve the eye muscle without losing
too much fat which gives the lamb flavour.
“I’m recording for my own use as I use up to nine
Oxford rams on my commercial flock. If by using rams with better
figures translates to an extra few pounds a finished lamb then
it’s a benefit to me.
“If you are using a ram that produces 38mm of eye muscle
depth with 3 to 4mm of fat it will be a lot more desirable for
the market than one with 10mm of fat,” he said.
Andrew sees the cost of recording which amounts to around £300
a year as a worthwhile investment as he also does with embryo transfer
work carried out by Ovibreed, of Springholm, Castle Douglas.
“AI and embryo work looks expensive but we have got to embrace
modern technology. A good ewe can produce the equivalent of four
or five lamb crops in a year with ET and there is no other way
to achieve this. We have recently flushed a very correct home-bred
ewe which was out of a Worcester champion and she has produced
good lambs,” said Andrew.
“If, like me, you want to get involved in preserving the
breed you need to make investments in it.”
As well as the Oxford ewes being docile and easily managed and
lambed, the breed has a high scrapie resistance. Results from flocks
which have joined the National Scrapie Plan have shown that 97
per cent of Oxford Downs tested possessed one or other of the two
genotypes representing the highest level of scrapie resistance.
All the sheep on the farm are MV accredited and the Lleyn was
selected as the ewe for the commercial flock to avoid importing
disease onto the farm by buying in female replacements. The ewes
are also prolific and easy to manage.
The Lleyns are crossed with both Oxford and Suffolk rams and this
autumn some of the Suffolk crosses are being put to the Oxford.
The pedigree flocks start lambing with the Oxfords at the end
of December and the Suffolks beginning in early January.
Rams and gimmers are sold both at the Worcester sale at the end
of July and at the Carlisle Rare Breeds sale in September.
Rams are sold at the Kelso Ram Sale and the NSA Builth Wells Ram
Sale, both in September. Ram lambs are usually used on the flock
before being sold on as shearlings. However, this year some shearlings
will be retained as stock rams to cover a larger number of ewes.
The commercial flock begins lambing on March 20 with some lambing
at the end of January to produce lambs for special events such
as next year’s Scotsheep which is being held in the Borders.
Early lambs are sold by the end of May through Longtown Mart and
while suffering from a depressed prime lamb trade this spring,
last year the lambs were consistently making £60 a head at
40kg or more.
Oxford cross lambs have an unrivalled weight for age with typically
lean 18-22kg carcases at 12 to 16 weeks old. An Aberdeenshire breeder
who is using a Langrigg-bred ram had the grading results shown
in Table 1 for his first batch of Oxford spring lambs sold deadweight
in early April.
“The Oxford is early lambing and soon gets to weight so
they are ideal for capitalising on the early lamb market. The majority
of our early lambs are off the farm by the end of June. Our lambing
percentage for the crossbreds averages 170 to 180.
“Some of the new converts to the breed are selling their
lamb to niche premium markets or through their own farm shops,
taking advantage of the traditional breed’s meat flavour
and eating qualities.”
With around 1,500 breeding ewes throughout the UK it qualifies
for the “native breeds at risk” payment within Defra’s
stewardship schemes.
Much of Guards Farm is only 5 metres above sea level and up to
40 acres is flooded regularly at peak times by the estuary.
Oats are grown for the sheep and roots are grown for the ewes
which because of their good feet can withstand wintering on them.
The sheep are also fed haylage.
The farm also has a small number of suckler cows which are being
phased out in favour of sheep.
Table 1: Grading results for Oxford lambs sold April 2007
Age (weeks) |
Carcase
weight (kg) |
Grade |
16 |
19.1kg |
R3H |
16 |
23.1kg |
R3H |
14 |
20.7kg |
R4L |
12 |
19.2kg |
R3H |
14 |
24.0kg |
U3H |
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