High Producing
(Continued from Pago A 26)
used, and you start seeing some of
the whole seed appearing in the
feces.
“We max Out the whole cotton
seed and then we start to bring in
some more megalac,” he said.
He said the four-way juggling
act begins at about this point in
creating a ration.
“Putting in fat... What’s hap
pening, we’re putting in fat and
we’re drecreasing the amount of
soybean meal and increasing the
amount of bypass protein,” he said.
He said he uses blood meal for
bypass protein for simplicity.
“It’s .important to keep these
balances of energy and protein and
fat and bypass protein.
“If we’re doing this, we’re max
ed out at 7- to 7'/i -percent fat. I
know some nutritionists and dairy
men who feed more fat, up to 8,8.5
percent In some cases, it works.
But I get nervous when I’m above
7'/i -percent fat,” Chalupa said.
“I like to hold it to about 7 per
cent. And when we’re doing this,
we’re still holding our ABF at
about 18 percent,” he said.
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But good total mixed rations
requires a little extra upfront
money, in order to get the extra
milk.
“People say, ‘Oh, that’s fine.
You’re using all these speciality
feed ingredients, but the ration is
costing more,’” Chalupa said.
"And I’ve been doing this for
about 25 years and I don’t know
how to make the ration better and
have it cost less or cost the same.
“If we’re going to have more
nutrients in the ration, it’s going to
cost more,” Chalupa said.
At first level of milk production,
about 20 kilos of milk, he calcu
lated that his ration would cost
about 10 cents per kilo of the
ration, or about a nickel a pound.
Go up to much higher levels and
feed costs rise.
“What we contend is not the cost
of the ration, but really the income
over feed cost, and also that will
depend on what the genetic poten
tial of a specific herd is,” Chalupa
said.
“If for an example, we have a
herd that has a genetic potential for
about 25,000 pounds of milk, and
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we Teed it rations to suppoit that
level of milk, starting early in lac
tation, and then drop back to some
of the less nutrient dense- rations,
and in fact the cows do milk at that
level, you can see we are still
increasing our income over feed
costs.
“We haven’t reached the point
of diminishing returns.
“We suggest, go ahead and feed
this ration, and if your other man
agement factors are correct and
your cows really do have the gene
tic potenital, they will increase
production and you will see and
increase in income over feed cost.
“And if you don’t, there’s either
some other management compo
nent that’s not correct, or your
cows really do not have that gene
tic potential, and then we better
drop back to the next level,” he
said.
Mike O’Conner, dairy specialist
with Penn State University, talked
about keeping high producing
cows reproducing and attempted to
dispel some myths surrounding
these cows.
He said it’s not so much the far-
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mer’s cow as the farmer, in most
cases.
“First thing is an attitude prob
lem,” O’Conner said, "i think high
production is often blamed for low
reproduction performance.”
He said that some farmers come
to him, throw their hands up in the
air and claim the can’t get their
cows bred because they are pro
ducing too much milk.
O’Conner said that there is no
significant, “direct correlation
between high milk production and
low breeding performance.
He said nutritional upsets in
cows caused by farmers who
improperly ration feed for high
production, or, in some cases, far
mers who deliberately wait to
breed their cows, are more at cause
for poor reproduction behavior.
“Also you allow those cows that
are high producers more opportun
ity to conceive, that’s not quite
fair to the low producer,”
O’Conner said.
“Also as days open increases, a
longer dry period results. Cows
tend to get ovcrcondilioned in that
late lactation period and the dry
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period. So a 10l of those four items
account for some of that bias tow
ards the high producers.” he said.
“Secondly, the low producers,
you cull them earlier ... and they
are not given a chance to reproduce
or become a repeat breeder and
phisiologically, inside of them,
they may be a repeat breeder, only
you don’t give them an opportuni
ty to show that,” O’Conner said
“Be cautious of reading some of
this (DHIA) information and
showing a negative effect on
reproduction, especially for the
high producer,” he said.
O’Conner said there were some
interesting results from studying
DHIA records taken from 4,800
Holstein herds in Northeast U S.
that were grouped according to
production.
The groupings ranged from
classes of 19,000 pounds milk to
13,700 pounds milk. And data
showed that while the high produc
ers had longer days in milk, the
calving intervals basically
remained the same.
“What I’m getting at is, these
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