25/11/05
English store lamb producers selling into the New Year market
are going to need to select the correct type and weight of lambs
and achieve the right balance between finishing speed and feed
costs if they are to make the most of their opportunities under
the growing challenge of chilled imports. This is the advice from
the English Beef and Lamb Executive (EBLEX) in its latest practical
guidance.
Best practice for long-keep store lamb production in the modern
market, set out in the organisation’s newly-published Lamb
Action for Profit resource at www.eblex.org.uk,
suggests lambs should be acquired within 10-18 kg of their required
slaughter weight, managed to gain 0.5-0.7 kg/week on minimal concentrates,
and marketed as early as possible from February.
This approach will ensure lambs of a better weight for both the
UK and export markets sold ahead of the time at which chilled imports
increasingly come into play in the run-up to Easter.
Performance Targets for Long-Keep Store Lambs (EBLEX)
|
North Country
Cheviot |
Small Hill
Type |
Half-bred
x
Terminal Sire |
Upland
Half-bred |
Feeding period (days) |
100-160 |
100-150 |
100-180 |
120-180 |
Liveweight at start (kg) |
30-35 |
25-28 |
28-32 |
25-32 |
Liveweight at end (kg) |
40-44 |
38-42 |
42-46 |
44-48 |
Overall liveweight gain (kg) |
8-14 |
10-14 |
10-18 |
10-18 |
Liveweight gain (g/day) |
70-100 |
70-100 |
70-100 |
70-100 |
Total concentrates (kg/head) |
10-20
(entirely outdoors); 30-50 (with indoor
period) |
For greatest success with the long-keep store lambs, EBLEX advises
producers to:
- Calculate how much can be paid for stores before purchasing,
running a quick check budget of realistic costs and estimated
returns;
- Quarantine all bought-in lambs from the rest of the flock to
a strict biosecurity plan;
- Assess lamb health carefully on arrival and follow a clear
health plan, keeping mortality rates down to 2% through good
husbandry;
- Weigh lambs on arrival, group them by weight and degree of
finish, and mark a proportion for re-weighing every two weeks
to monitor progress;
- Make the best use of home-grown forage crops or arable by-products,
introducing complementary concentrates as forage quality and
supply declines and before lamb growth rates suffer;
- House stock where facilities are available if forage supplies
prove inadequate, finishing them on forage supplemented with
concentrates; and,
- Select lambs carefully for slaughter to ensure as many as possible
meet the specific market requirements – 17-21kg E,U or
R carcases of fat class 2-3L for the UK (and lighter 12-19kg
carcases of similar grades for export to the Continent).
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