using Effects Growth
Broilers, Tests Show
jjving quarters affect the growth rate and feed con-
U ° rate of broilers’ Yes, to some extent, according to
f Enough so. that it’s a factor that shouldn’t be over
' a m any critical test for the evaluation of broiler
t performance. But not enough to invite a near ner
* breakdown for hundreds of broilers by intermingling
Sex and source of stock play a more important role
termining differences in growth and feed conversion
,S information nelps fill
picture for supervisors
andom sample te*ts and
i v breeding research
who ha ve wondered if
raised m 1 pen would
; rm differently in in an-
•ilical evaluation of broil
oerformance requires
~ng that permits detect
’of genetic differences
vee n stocks,-without intro
ing additional differences
, scientists call them lo
,on effects) What are
of these possible differ-
Whether or not houses
the sun, the kind of care
buds get, size and shape
10 uses, the type of floor
and many other similar
tors can add up to give a
ie pictuie of genetic dif
aices in birds
E these location or pen ef
ts did exist in certain fa
des, researchers and su
visom leasoned, it would
be necessary to repeat
samplings However, if
[•ion effects didn’t exist,
St
p
■22
A V" \J|W. J sy. / A
X- >■ A A
x f r
x *5 < n >
it
0\VI1(
year
700 bu
Mast and
| toe s every
A Dithane
hZ Uved exclui
, eVei T SOUT(
move.
;e n an!fi Un! ; r ' looked fine. The vines
healthy. No blight appeared. Harvest
it would then be possible in
each test to use single pens
and evaluate more stock at
one time without worrying
about the accuracy of the
test due to variations in hous
ing.
Tests to measure any dif
ferences iji growth rate and
feed conversion due to locat
ion and to evaluate separate
and mterming ed rearing of
broiler stock were conducted
as part of the Southern Reg
ional Poultry Breeding Pro
ject.
Each of 10 commercial
broiler stock breeders pro
vided enough eggs to supply
800 chicks a total of 8,000
Chicks from each source we
re divided into 4 groups of
100 males and 100 females
each Three of these groups
were reared intermingled
with a similar number of
chickens from each of the
other 9 sources Two identi
cal houses of 20 pens each
were used Feed, water space
and equipment were kept
identical in all pens.
+
•v
* *
Dutch tradition, dot phis pic
' on the Mast farm, in Penn
<rld".
the Pennsylvania Dutch
Pa., is blessed by good
'es for its devout, hard-
itly rolling land yields as
[uality potatoes per acre.
aul, put 65 to 100 acres
<ast year, something new
'maneb) fungicide spray
to guard against potato
came assurance that this
> &
I
- 3
DITHANE M-22 .. . now 80% maneb
from your partner in crop protection
Dithane is a trademark, Reg. U. S. Pat. Off. and in principal
foreign countries.
time rolled around, and only then did "Jake" Mast
have the answer for sure.
Dithane M-22 helped bring in his best crop ever...
despite weather conditions which favored blight. And
what’s more, he says Dithane M-22 appears to produce
more uniform sized tubers.
Bulk body weights by sex
and source were taken at 8
weeks of age and individual
body weights at 9 weeks. Fe
ed consumption was record
ed at 8 and 9 weeks of age.
Mortality records were kept
for all groups.
At 8 weeks, intermingled
birds weighed slightly more
than those reared separately.
But at 9 weeks, the advant
age was slightly in favor of
birds reared separately. The
weight disadvantage for the
mixed group may have been
due to social tension, which
becomes noticeable through
bossiness and pecking in
males at about 8 weeks of
age. Tensions would normal
ly be greater when birds
from several sources are
reared together.
When body weigh data for
separately reared broilers
was analyzed, substantial
differences for source and
sex showed up, but no real
difference could be traced to
location At 9 weeks, mean
ingful differences ' in body
weight could be traced fo in
teraction of location and
source, and highly meaning
ful differences were traced
to the interaction of location,
source, and sex This indi
cates that broilers from the
same source will perform
differently in some locations
than in others. Even birds of
the same sex from the same
sources will perform differ
ently in different locations.
Differences were found in
feed conversion due to source
of the broilers, none due to
location And this was true
Jacob K. Mast—potato farmer,
grower of fine Angut and Hereford beef cattle,
school board officer and tang leader
in the Mennonite church.
Chemicals for Agriculture
ROHM e HAAS
COMPANY
WASHINGTON SQUARE, PHILADELPHIA S, PA,
Lancaster Farming. Saturday, April 16, 1960—9
Farm Women No. 7
Hear Miss Kirstein
Miss Nita Kirstein, an ex
change student from Ger
many, gave an interesting
and informative talk about
the German school system
at the April 9 meeting of the
Society of Farm Women No.
7.
Hostess was Mrs. Samuel
Wenger, of Leaman Place,
While Mrs. Milton Esben
shade was co hostess.
Devotions were in charge
of Miss Sally Wenger and
roll call was answered by
members telling an “Old
Fashioned Remedy”.
even though all the stock
tested was from commercial
broiler stock breeders and
did not differ as much in
growth rate as would be ex
pected if non-commercial or
dual purpose stock had been
included
The scientists concluded
that under their conditions,
location or pen effects aren’t
important if chicks «from a
given source are reared sep
arately and if care is taken
to maintain uniform housing
conditions. But location ef
fects must be considered
when birds are intermingled.
Thus, not only is separate
rearing advantageous from a
standpoint of eliminating lo
cation effects, it’s also pre
fer ab’e where feed conver
sion data is needed. Such da
ta can’t be obtained with in
termingled rearing.
The society voted a con
tribution of $lO.OO to the
Crippled Children’s Fund
and a collection totaling $l7,
was taken for the Cancer So
ciety Fund.
The next meeting, a food
sale with donations being re
ceived for Christ’s Home
will be held at the home of
Mrs. Clyde Benedict in Kin
zers on May 9.
MOUNT HOPE
/V QUEEN
For over 35 year* they have been bred
to lay MORE big, high-quality eggs, on
less feed.
First in Feed Efficiency at Penn*.
“Random Sample” Test; fourth In'
Profit among 48 entries. First in Nation
on Number of Eggs (Florida Test) aver
aging 303 eggs per bird,
Get 100% Mount Hope
breeding by going
direct to the Fran
chised Hatchery near
est you. Free Folder. _
Johnson’s
Hatchery
EPHRATA, PA.
PHONE RE 3-2980
Lancaster County
Distributor
FOR
Dithane
M-22
LEBANON
CHEMICAL
CORP.
LEBANON, PA.
Phone CR 3-1687
- Local Representatives
AUSTIN WEIMER
LITITZ, R, D, 2
Phone MA 6-6032
JOHN BRUBAKER
LITITZ
Phone MA 6-6575