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JUNE 2019
www.irishfarmersmonthly.com
Management Hints
JUNE 2019
Management Hints
www.irishfarmersmonthly.com
51
X
For second cut, use 70-80 units of N, 14 units P and 60 units
K and 10units S per acre; but make allowances for nutrients
in slurry.
X
Each 1,000 gallons has 5 units of N, 5 units P and
30 units K.
X
Get the silage contractor to cut from the centre of the field
out so as to allow wildlife and young pheasants to escape.
X
Silage preservation and quality has disimproved during the
last few years.
f
f
If silage needs an additive that preserves it, spend the
money but if it doesn't you cannot afford to spend.
f
f
You need a preservative when sugars are low due to
excess moisture (rain) or very lush high quality grass.
f
f
If you can cut in dry conditions, tedding and wilting also
helps, and you definitely need no additive.
f
f
As the quality of our silage has slipped over the last few
years, we must improve the quality by cutting earlier (a
few days makes all the difference) and don't wait for bulk.
X
You must get your silage contractor to cut low, definitely no
higher than 3.5 cms off the ground.
f
f
Otherwise you will have poor quality aftergrass from
these fields later.
X
You must collect all silage effluent in your tank.
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Don't take for granted that this is happening but ensure
that it is.
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Fish kills are high risk and the consequences are very
serious for the offending farmer.
SOW KALE NOW
X
You should consider it because one hectare will feed 27
weanlings next winter with 1-2 kgs DM of silage for 3
months.
X
It will be one of the cheapest ways of winter feeding cows
next winter
X
Sow in early June to maximise yield,
X
Because the seed is very small, a fine, firm seed bed is
required
X
Sow 4.5-5 kgs/ha of seed if drilled more if broadcast,
X
The ph must be 6.5 or greater,
X
Fertiliser; Use 80 units/acre Nitrogen in two dressings; 24
units/acre Phosphate and 130 units/acre of Potash (4.3 bags
0:7:30 +N).
X
To facilitate feeding silage with the kale and to avoid
excessive tractor wheel damage during winter, put out baled
silage every 30-50 metres on the headland.
MISSED HEATS ARE 25-40%?
X
According to ICBF, "Prolonged repeat Intervals (% of repeat
intervals greater than 24 days) are running at 25-40 per cent
on many herds compared with 19 per cent for the Top 15 per
cent of dairy farmers.
f
f
This either indicates embryo loss or missed heats,
X
Each missed heat now results in 250 per cow loss:
f
f
She will be a late calver.
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f
She may be culled if she doesn't go in calf before the end
of breeding season leading to losses of 1000 to 2000
(potential lifetime loss).
X
We are now in the most difficult part of the breeding season:
f
f
It is more difficult to identify bulling cows,
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f
Bulling activity is now only one-fifth of what it was 4-5
weeks ago.
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Fewer cows are bulling, therefore, less bulling activity and
as some cows are only mounted 5-6 times (average 10)
with each mount only lasting 2-3 seconds, the chances of
not seeding these cows bulling now is very high.
X
You must "up" your heat observation efforts:
f
f
Tail paint or such aids are now more important than ever
and should be topped up every 3-4 days.
f
f
A vasectomised bull (one per 25 bulling animals) with a
chin-ball should now be introduced, but it is only possible
if you have one.
X
If more than 25-30 per cent of cows are repeating then you
have a problem. It may be due to:
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f
Management errors; such as poor heat detection, animal
pain/stress,
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Seasonal factors; such as nutritional deficits.
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Female factors; nutrition deficit/excess, infection/disease/
viruses,
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Male factors; such as AI bull (some have better
conception rates), timing of AI (best time is 18hours after
onset), poor AI-man, stock bull (7 per cent are totally
infertile while 30 per cent may be sub-fertile)
X
Scan cows now (28-35 days after service) to confirm
pregnancy:
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f
It will identify pregnancy and/or weak pregnancies,
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It will help to identify problems, such as cysts,
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You will have two or three more chances to get them in
calf.
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Think seriously about this advice!
X
Bull late calvers at 30-40 days after calving with an easy
calving, short calving interval AI bulls (minus 7-10 days).
Most beef breeds don't compare well with AI Friesian or
Jersey on this trait.
X
Use your breeding chart to predict when cows are due to
repeat.
f
f
This will help you not miss any expected repeats.
BEWARE OF STOCK BULL
X
So says AHI. I say don't go there at all as they are too risky
to get cows in calf late in season and they have an annual