I>4*Umcaster Farming Saturday, July 1,1989
BY HERBERT C. JORDAN
Penn State
Associate Professor of
Poultry Science
During natural growing,
mating, nesting, incubation,
hatching and following (emulat
ing) mother, we find normal, con
fident behavioral linkage of young
to their mother or parents and their
past which may cause' superior
performance.
For instance, the synergistic
effect of the mother hen giving
young a pattern of how to seek and
find food, water and shelter. This
is essential in game birds; com
mercial poultry lack this and
therefore, may grow up more
nervous and uncertain of their
environment. Example, hysteria in
layers occurs only in commercial
flocks where I have diagnosed and
treated ten cases. Not one case
have I seen in backyards flocks
(example by author, HCJ). Hyster
ia is the uncontrolled stampeding
of flying of birds on a time sequ
ence rather than as the result of
being frightened by an outside sti
mulus. The animals’ fright comes
from within the animal.
To prevent damage from this
nervous condition from hatching
time, give the bird more quality
care from humans.
Breeder Male Presence
The synergism of males and
females in a breeder flock as it
relates to the normal behavior of
the young they produce. Females
seem less nervous with males in a
breeder flock; if the female is
nervous from being without
males, docs she transmit this to the
young through a qualitative
change in the egg contents or blas
todisc? Look at the fertility or
hatchability of vigorous chicks
from your breeder flock. If these
were substandard, what part of it
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Does Your Flock Lack
can be related to sperm or egg cell
quality of naturally mated com
pared to use of artificial insemina
tion? This is a question, not an
answer.
Sib-Synergism
Pullets learn to know and
respond to sister pullets in their
growing environment Why not
keep pullets together when enter
ing a laying cage so that the new
peck order takes less effort to
establish? The synergism of pullet
to pullet can be a bond to help per
formance in the laying house.
Some breeder flock managers
say better fertility comes from
breeder flocks of males and
females that have been raised
, together, why then should not an
all pullet flock do well in the layer
house if they were raised and kept
together? Try this in a field test
and see if it makes a difference.
Environment
• The synergism of bird to envi
ronment is important. Check your
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Hen# (Till NlMlt
synergistic effect of pullets being
raised in one familiar environment
then being changed to another
unfamiliar environment and doing
poorly. Let’s look at what poultry-
men say:
• Pullets raised on the floor then
put in layer cages are not the same
as if raised in cages.
• Pullets raised on cup type or
trough type waterers then placed
in a layer house with nipple drink
ers may not learn to drink swiftly
enough.
• Pullets raised in cages then
put on the floor in a breedeer
house do poorly.
• A change in quality or amount
of light from pullet house to layer
house may cause problems.
• A change in water qua’ity
where pullets may be raised on
country water with no intentional
additives placed into it then placed
on city water and/or a chlorinator
in the laying house with chlorine
and fluorine in it may cause a shut
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PENNSYLVANIA
Straley Farm Supply, Inc. *
1760 East Canal Road
Dover, PA 17315
717-292-2631
Betts Equipment
3139 Windy Bush & Rl. 232
New Hope, PA 18938-9303
215-598-7501
Keller Brothers
R 7 Box 405
Lebanon, PA 17042
717-949-6501
Lancaster, PA 17601
.1950 Fruitville Pike
717-569-2500
Marshall Machinery, Inc.
Route 652
HoneSdale, PA 18431
717-729-7117
Synergism?
down of some normal gut flora.
• Toxic gas change where a pul
let is raised where manure dries as
it drops and has virtually no odor
or toxic gas then placed in a layer
house with old wet manure caus
ing layer to breathe ammonia,
hydrogen sulfide, and methane.
This is present with health prob
lems frequently.
• A reduction in feeder or
waterer space per bird from pullet
house to layer house may severely
reduce performance.
A pullet relates to many things
in growing up. The synergistic
effect of anything familiar to the
bird must be maintained or
replaced if it is taken away.
Synergism is defined as a con
dition where two or mote factors
combining in any situation can
provide more impact or value than
the one factor plus the other factor
or factors individually.
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Wm. Hobensack's & Sons Swelgard Bros., Inc.
1060 Greeley Avenue RD #3, Box 13
Ivyland, PA 18974 Halifax., PA 17032
215-675-1610 717-896-3414
Pikevllle Equipment Inc.
RD 2, Oysterdale Road
Oley, PA 19547
215-987-6277
Pagl Shovers Inc.
RD 2
Loysville, PA 17047
717-789-3117
Tractor Parts Co.
335 Central ROad
Bloomsburg, PA 17815
717-784-0250
Box Scraper Features:
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• 4"x4” square tubing main frame
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• % "x 2%" heat-treated spring steel shanks
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• Vt "x 6” high-carbon, heat-treated, curved cutting
edge; reversible
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• 3t’/a" overall depth
• Pin securely holds shank - easy to remove for
shank adjustment
Stouffer Bros. Inc. _
1066 Lincoln Way West Warren County Service Center
Chambersburg, PA 17201 r . 22 ®. J*
717-26M424
201-362-6916
Stoltzfus Farm Service
Cochranville, PA
215-593-2407
NEW JERSEY.
Owen Supply Co.
East Avenue & Broad St.
Woodstown, N.J. 08098
609-769-0308
If a synergistic advantage exists
in your poultry system, study it
and take advantage of it.
One out of every 17 day-old
flock of cockerels for 4-H capons
exhibit curled toe paralysis the
first three days of age. This may
relate directly to breeders not pro
viding enough riboflavin in the
egg-
If a problem exists from a
damaging synergistic effect of two
or more factors—avoid it Exam
ple: two incompatible drugs fed in
the same feed at the same time
causing bird to become ill.
In summary, we find most farm
managers examine or check on 30
or more factors in a flock each
day. If these factors have an inter
action with each other, it pays to
know it, take advantage of it, or
avoid it.
Caldwell Tractor &
Equipment, Inc.
480 U.S. Route 46
Fairfield, NJ. 07006
201-227-6772
Rodio Tractor Sales
North White Horse Pike
Hammonlon, N.J. 08037
609-561-0141
Frank Rymon & Sons, Inc.
RO 3, Box 355
Washington, N.J. 07882
201-689-1464