04-Lancaster Farming, Saturday, November 26,1994'
P(
’oultry Sdence
Penn State
Poultry T \
Pointers ;
ANTICIPATORY FEEDING
BY BROILERS
H. S. Siegel
Professor
The pattern of feed consumption
that is, the amount and the time
that the birds eat —is an important
cons ideration for broiler producers
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standard, and for the 7-foot moc
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Come in today and learn mon
about Bush Hog's 270 Series
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BUSH HOG
ANDERSON TRACTOR SALES, INC.
Jacobus, PA 717-428-3280
CHAMBERSBURG FARM SERVICE
Chambersburg, Pa 717-264-3533
NORMAN D. CLARK & SONS, INC.
Loysville, PA 717-789-3117
PARMER’S EQUIPMENT &
SUPPLY CO., INC.
Airville, PA 717-862-3967
LESLIE G. FOGG, INC.
Bridgeton, NJ 609-935-5145
HINES EQUIPMENT
Cresson, PA 814-886-4183
Bellwood, PA -814-742-8171
GEORGE N. GROSS, INC.
Dover, PA 717-292-1673
GROWER’S EQUIPMENT
Biglerville, PA
A. L. HERR & BROS.
Quanyville, PA 717-786-3521
Capital Region
and processors.
Feed efficiency, clearance of the
digestive tract before processing,
and resistance to high temperature
are associated with the pattern of
feed intake. Restricting the length
of time available for feeding often
gives improved feed conversion,
CENTER, INC.
717-677-7133
'eterinary Scienci
Stronger, Easier to Operate,
Easier to Maintain
8 to 1014 Foot Digging Depths
Rated for 20-100 HP
Tractor
BUSH HOG
ir 7-feet. A three-i
SEE YOUR LOCAL BUSH HOG DEALER'
KELLER’S FARM MACHINE. INC.
Quakertown, PA 215-536-4046
but it also often leads to overcon
sumption that can hinder feed
clearance from the gut in rapidly
growing broilers.
Excessive amounts of feed in
the digestive tract are detrimental
to effective heat loss during high
temperature exposure and may
also cause problems at the process
ing plant.
Any factor that causes overcon
sumption may be detrimental to
gut clearance. One of these factors
is anticipatory feeding, which is
defined as increased consumption
of feed before a recurring period of
feed unavailability. In other words,
when birds become accustomed to
periods when feed is not present
(or at least not seen), such as per
iods of darkness, they consume
extra amounts of feed ahead of
lime in anticipation of the non
feeding period.
Feed consumption prior to dark-
Backhoes
loir* hitch is
ABC GROFF
New Holland, PA 717-354-4191
MARSHALL EQUIPMENT CO.
Beyer, PA 412-783-6333
MARSHALL MACHINERY. INC.
Honesdale, PA 717-729-7117
NICARRY EQUIPMENT INC.
Reading, PA 610-926-2441
NICHOLS FARM EQUIPMENT
Bloomsburg, PA 717-784-7731
NORTH-EAST DISTRIBUTORS
& EQUIP.
West Clifford, PA 717-222-9020
ROVENDALE AG & BARN EQ
Watsontown, PA 717-538-9564
SMITH’S FARM EQUIPMENT
Newport, PA 717-567-3562
ness is often greater than that
occurring after the dark period,
according to May and Lott (1992),
but anticipatory feeding does not
occur when broilers are provided
continuous, constant intensity
light.
However, May and Lott (1994)
point out that a number of factors
may stimulate anticipatory feed
ing. Many commercial broiler and
turkey houses are curtain-sided
and therefore the birds are exposed
to daily cycles of temperature and
light intensity changes. Their stu
dies show that if feed is available,
bright periods of light (9.5-12.0
foot candles) followed by dim per
iods (0.5-1.5 foot candles) would
stimulate birds to increase feed
consumption in the hour before the
light began to dim.
The effect was not as dramatic
as when there was total darkness
alternated with periods of light.
Not All Fields Are Perfectly Flat
That’s why the Bush Hog® model 2615 15-foot cdtter's wings are designed to float
along contours as severe as 90 degrees up or 22 degrees down while shredding
stalks, clipping pastures or cutting along rights-of-ways, drainage ditches, terraces
and fence rows. As it does so, an automatic height adjustment keeps the wings cutting
at the same height as the center section. A framing system featuring closed box
members allows us to make the 2615 pounds lighter without sacrificing any of the
strength you've come to expect from a Bush Hog. And, less weight not only means
less wear and tear on your tractor but it has also allowed us to cut the price.
Why pay more to get less - make
a Bush Hog's success your success. BUSH OUb
Why Bush Hog Squealers
Mow down The Competition
There are two basic reasons and quality Is the first. Each Squealer model is
equipped with Bush Hog's tough gearbox that carries a 2-year warranty. All
models, except the 42-Inch wide cutter feature oval blade pans, and the 60
and 72-inch wide models have an “In-line" shear bolt with ball bearing
protection that can be replaced in a snap An optional slip clutch is
available.
The second reason for the Squealer's popularity is price Select any of 5
models. 42 to 84-Inches wide, and compare prices with the competition
With a true pnce/quality comparison, it's easy to see why Squealers mow
down the competition.
CHARLES 8. SNYDER. INC.
Tamaqua, PA 717-386-5945
STANLEY'S FARM SERVICE
Klingerstown, PA 717-648-2088
STOLTZFUS FARM SERVICE
Cochranville, PA 610-593-2407
TRACTOR PARTS COMPANY
Bioomsburg, PA 717-784-0250
UMBERGER’S OF FONTANA
Lebanon, PA 717-867-5161
C. J. WONSIDLER BROS.
Quakertown, PA 610-536-1935
New Tripoli, PA 610-767-7611
Oley, PA 610-987-6257
PEACH COUNTRY FORD TRACTOR
Richwood, NJ 609-589-3953
RODIO TRACTOR SALES
Hammonton, NJ 609-561-0141
FRANK RYMON & SONS
Washington, NJ 201-680-1464
The researchers also showed that
although birds ate more at lower
temperatures, this was not consid
ered anticipatory feeding, as the
birds did not anticipate the onset of
high temperature by beginning to
eat just before temperature rose.
This research suggests that syn
chronization of tne bird’s biologi
cal clock to visually stimulated
senses is an important cue to regu
late feeding behavior. Regular per
iodic noises or appearances of
caretakers may provide other cues.
For more information on antici
patory feeding, poultry producers
should consult Dr. J. D. May,
USDA-ARS, South Central Poul
try Research Laboratory, Missis
sippi State, MS 39762.
References:
D. Lott, 1992. POULTRY
Miy, J D. and B.
SCIENCE. 71:951.
D, Lott. 1994. POULTRY
Msy, J. D. and B
SCIENCE, 73:1398