Lambs pass an X-ray machine which takes images of the
carcasses at Silver Fern Farms' Pareora meatworks. Photo by
Neal Wallace.
Farmers will be paid a premium for supplying lambs to
Silver
Fern Farms that meet its target carcass conformation
requirements.
The
move is a result of the Dunedin meat co-operative introducing
its MVTS
X-ray technology in its Finegand, Pareora and Takapau works
to provide
that conformation information.
Silver Fern Farms (SFF) chief
executive Keith Cooper said meat yield was just part of the
carcass
conformation formula, and the technology would generate what
he called
"a carcass performance measurement".
"Yield is too definitive."
He
said yield related to the ratio of meat to bone, whereas SFF
wanted to
pay for the overall quality of the animal and how the meat
was
distributed over the carcass, but especially the portion of
high-paying
cuts relative to low-paying cuts.
To earn the premium, farmers
would have to commit supply to SFF after which all their
lambs would be
streamed to the three plants initially fitted out with the
MVTS
technology.
Premium payments would be over and above the schedule at that
time.
Mr
Cooper said, at the recent MVTS launch at Pareora, that other
carcass
conformation predictive systems such as VIAscan only provided
an
estimate, because it could not see through the carcass like
an X-ray.
The
MVTS X-ray technology, developed by Dunedin's Robotic
Technologies Ltd
- a joint venture between SFF and Scott Technology - took a
3-D image
of each carcass and accurately predicted the weights of the
three
primal cuts (leg, middle and shoulder), and the optimum point
at which
to make each cut.
Carcass information was fed into production
scheduling to determine the best processing option for each
animal and
would also to programme robotic processing technology.
Scott Technology believes it could have a fully automated
lamb-cutting room within five years.
With
a shoulder worth about half that of a leg or middle, accurate
cutting
to recover the maximum volume of high-value meat was
worthwhile to
farmers and the meat company.
It also counted the number of ribs in each lamb.
While
developing the technology, researchers found that about 18%
of lambs
did not have 13 ribs, the assumed number for lambs, but could
have 12
or 14.
This can mean wastage, as those lambs that did not conform
were processed the same, but the end-product was not always
suitable.
Mr
Cooper said the system generated a huge amount of information
on each
lamb which could assist with breeding, management and feeding
decisions.
Mr
Cooper said the system would cost about 15c to 45c a carcass
depending
on installation costs and plant throughput, but improved meat
recovery
and matching each lamb to the various markets should increase
returns
by $2 to $5 a lamb.
Radio frequency identification traceability
technology would be added to the system allowing the tracking
of data,
weight and defects.
Eventually, the MVTS technology would advance to include the
ratio of meat to fat to bone.
Alliance
Group has also purchased an MVTS X-ray primal cut, but Mr
Cooper said
last week that some of the technology, such as the collection
of
carcass information which would be fed back to farmers, would
be only
available to SFF.
Alliance has for several years used VIAscan technology to
make yield quality contract payments to its suppliers.
VIAscan
took an image of the carcass and, using complex algorithms,
compared
the shape and colour profile of the carcass with a database
on
thousands of boning trial results.
It divided the carcass into
the three primal cuts and reported the meat yield for each,
which was
compared against an ideal market weight range and yield for
each area
of the carcass.
Alliance has been involved in Central Progeny
test trials for many years, which identified lines and traits
within
sheep breeds which have the desired carcass genetics.
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