Astridge Farm is situated in the beautiful location of
Pembrokeshire, Wales, in the United Kingdom. It is near the
splendid beach and bay of Tenby. Nigel and Jill Batten have owned
this 280 acre dairy farm since 1995. It was originally purchased by
Nigel's father in 1969. Of the 280 acres only 190 are considered to
be fertile land. Previously, 280 cows were milked through a 14
point abreast parlour - taking 3 hours+ at each milking.
This Welsh dairy farm has changed and expanded to become one of
the most modern and sophisticated available. Currently, 500 cows
are milked through a fully automated and individually cow monitored
Dairymaster 50 point rotary parlour. This system has speeded up the
milking process considerably to around 200 cows per hour.
New housing has been built and older buildings adapted for both
cow and calf accommodation. A large slurry separator enables the
liquid left, once solids have been removed, to be used to regularly
flush the passages in all the cow housing.
Dairymaster MooMonitors continuously record cow activity to
provide accurate heat detection. The daily monitoring of all
aspects of the 500 cows enables sound management decisions which,
coupled with quality stockmanship, will produce best cost per litre
of milk sold and maximum income per cow.
To maximise the overall management and production of the farm,
Nigel and Jill have taken positive action to improve housing,
monitoring, feeding and breeding. Old buildings were adapted to
provide updated calf housing and, especially, new cow cubicles. A
new building was constructed to cope with the 500 cows over winter,
with TMR rations fed under cover. Sand is used as cubicle bedding
and changed weekly. This provides a clean and easy-to-manage
bedding/floor system. Solids are separated from the slurry. The
liquid goes into lagoons for re-use as daily passageway wash water
- a most effective way of cleaning and not having slurry disposal
problems or environmental pollution issues.
The current herd average of 8200
litres per cow is expected to increase over the next 12 months. The
milk quality is good at 4.1% butterfat, 3.25% protein, with SCC of
fewer than 130,000 and Bactosan of under 50. The milk price of just
below 27 pence per litre is expected to increase in the near
future. This increase is needed to cover the increased costs of
most items used on the farm.
Each cow is fitted with a transponder so that she can be fed to
yield with specialist parlour rations. Any feed not eaten and milk
yield are recorded by the Dairymaster Milk Manager system at every
milking thus enabling accurate daily management decisions. The cows
are, without doubt, very contented in this new parlour, which
provides easy milking and the opportunity for good cow observation.
The system also includes semi-automatic footbaths which refill
after every 100 cows. The low level of hoof problems is testimony
to the effectiveness of this feature. Two three-way-drafting gates
and retention bars give the facility for specific cow treatment
after milking. From the parlour, one pipeline runs to a new 35,000
litre main bulk tank from which milk is collected every other day.
There is a smaller divert milk line to a tank in the calf
shed.
With only 190 acres of fertile land available it is clearly not
possible to produce all the forage needed for the farm throughout
the year. This year (2008), 350 acres of grass silage and a new 110
acres of maize silage will be produced by using additional local
land. The grass silage will be treated with an additive that has
proven useful in controlling aerobic spoilage at the clamp
face.
Replacement cows, two to three weeks after first calving, are
successfully purchased from the local Carmarthen market. This
allows Astridge Farm to concentrate on the milking cows and beef
calves. Five Belgian Blue bulls have replaced ten Hereford bulls
and are used with the low yielders to produce top quality calves
for beef production. These calves may be fed milk diverted from the
dairy or milk substitute. In total they are fed at a maximum six
litres of liquid per calf per 12 hours. The feeding is controlled
by a transponder on each calf. A coarse mixture ration is fed
ad-lib until sale of the calves at around five weeks of age. These
calves are worth far more than those from the Herefords. Bull
calves are worth about £50 more each than heifer calves. Superb
batches of calves housed on plenty of clean straw help to produce a
good income per cow.
Cow activity is a sound indicator
of heat detection. Visual observations of bulling with manual
recording will detect only 40% to 60% of cows on heat at best.
Dairymaster MooMonitors fitted to Nigel and Jill Batten's 500 cow
herd at Astridge Farm are providing continuous data and a 95%+
accurate heat detection rate wherever the cows are on the farm.
Comparison charts from visual only, visual + monitor and now
monitor only clearly demonstrate that around 50% of cows on heat
are not detected by visual only.
The monitors are fixed to a collar with a weight below the neck to
hold them in place. The monitors are robust, well accepted by the
cows and continuously record activity data on a PC or mobile phone.
The data can be downloaded and stored by the operator at set
intervals. The bar chart will show activity patterns, heat
detection and clear 21 day cow cycle patterns. AI from Alta is used
at the optimum time for the high yielders, as is pregnancy scanning
and the ability to draft the cow, after milking, for other reasons.
A separate chart shows inseminations, pregnancy and calving
dates.
The Overall Herd Calving Index on this farm is confidently
expected to reduce from the current 400 days to 380 days in 12
months time; in addition there will be a reduction in veterinary
costs. Mr Batten considers that all herds of 300 cows or more would
benefit from having MooMonitors fitted as a reliable management
tool to maximise breeding efficiency, which will contribute
significantly to a herd's financial status.
Nigel and Jill Batten's investment and commitment to future profitable milk production is an encouraging example to dairy farmers of the future anywhere in the world. Their overall objectives are to use top quality products and systems with quality back-up, to do the job well but make life as easy as possible.



























