JAY 1976
, rB d Holstein cow owned by Rufus G. Martin,
I, completed the highest 305 day lactation. She
j 23,737 pounds of milk, 987 pounds of butterfat
42 percent test. Second high lactation was com
hy a registered Holstein cow owned by Titus B.
3207 Bowman Road, Landisville. Hilda produced
)un ds of milk, 907 pounds of butterfat with a 4.8
test in 305 days.
herd of Rufus G. Martin had the highest daily
average. This herd of 28 registered Holstein
averaged 59.8 pounds of milk, 2.23 pounds of but-
w.
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Atlantic 4&nefis Power
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USDAIS/76J 1,230 Daughters in 582 Herds Average 15.711 M 3.65% 574 F
Predicted Difference {98% rpi] +9BBM +s74 +24F
Type. 188 Cl. Daus. Ave. 79.7 [act.] 81.7 (age-adj.]; 145 Pr. +.57 PDT (90% r.]
USDA IS/76] - 126 Daughters in 88 Herds Average 14.819 M
Predicted Difference |86% rpt.) +4B2M
Type. 34 a. Daus. Ave. 80.0 |act.| 81.6 |age-adj.|; 28 Pr. +.7IPDT (69% r.|
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V Supplier M
24-Hour Toll-Free Phone Nos. for Service
Pennsylvania 800-732-0391 Lancaster 569-0411
Lancaster
COUNTY I
DHIA |
monthly)
REPORT I
m
-fl'tla.n.tic
BREEDERS COOFZEIR.A.TIVE
LIVESTOCK
SERVICES
teriat with a 3.7 percent test. The herd of Ben K. Stoltzfus,
Gordonville, placed second. This herd of 33 registered and
grade Holstein cows averaged 60.8 pounds of milk, 2.17
pounds of butterfat with a 3.6 percent test.
FIRST 305 DAYS OF LACTATION
WITH 600 OR MORE POUNDS OF BUTTERF AT
OWNER -
Rufus G. Martin
33 RH
60 RH
Titus B. Stoner
Hilda RH 4-11 305
' Donna RH 3-5 305
Lancaster Mennonite Hospital
Wilsu24 RH 3-3 305
OHate RH 10-7 305
XmargSS RH 2-3 305
Xmudy 51 RH 2-3 305
Ben K.'-Stoltzfus
Maid RH
Sunny Craft Farm
Matty RH
Paul B. Zimmerman
BREED
RH 8-10 261
RH 4-5 305
[Continued on Page 82]
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Member NAL Affiliated Breeders
MILK TEST
AGE DAYS
23,737
18,156
305
303
10-6
4-5
19,085
14,235
20,528
18,273
15,484
16,007
305
23,414
22,219
305
16,235
17j628
with
o$- -
15H120
Harrisburg
GAY Ideal
Excellent (92)
& Gold Medal;
PQ & TQ (May/76)
Sire: Tidy Burke
Jerry EX & PQ
Dam: Harrisburg
Osborndale Sue
VG (88)
15H139
Curtis-Haven
Apollo VICTOR
Good Plus &
Type Qualified
(May/76)
Sire: Hilltop Apollo
Ivanhoe VG
(89) & GM
Dam: Anderson Von
Performer Veige
EX (92) - 2E
533 F
-7F
Del. &Md. 800-233-0216
FAT
987 -
694
907
728
4.4
3.4
4.0
3.8
895
629
616 *
607 '
853
852
831
647
Lancaster Farming, Saturday, June 26,1976—81
Summer Comfort and Safety
For Dairy Cows
During a recent visit to
Penn State, on a hot af
ternoon, Dick Adams and I
were trying to keep cool and
celebrate Dairy Month by
enjoying some famous
University Creamery ice
cream. Since Dick is a dairy
specialist concerned with the
cow end of the industry, our
conversation soon fell from
chocolate chip mint vs.
maple walnut to trying to
keep the cows going during
hot weather.
Hot, humid weather can
adversely affect milk
production, milkfat test and
reproductive performance of
dairy cows. These effects
may be at least partially
overcome, if cows are made
as comfortable as possible
and feed intake is main
tained close to normal.
Summer comfort requires
shade and good air
movement. Sometimes it
may be best to keep cows
inside bank barns or
properly ventilated free-stall
units during the day and turn
them out only at night. Such
a bam must have a lot of air
movement from forced or
natural ventilation.
Cows left outside should
have access to natural or
artificial shade in a spot
where prevailing breezes
can hit the cows. Most of the
heat produced by the cow
must be dissipated via skin
and lung evaporation. Thus
the importance of air
movement.
Shading is necessary to
prevent overheating of the
cow and particularly the
Facts for
dairymen
By Alan Bair
Assoc. County Agent
Lancaster, Pa.
rumen. Artificial shades
should be high enough for
good air movement and be
covered with light material
to reflect as much sunlight
as possible. _
Feed, cool water and trace
mineral salt should be
provided in the comfort spot
to encourage eating and
drinking. Provide cows with
the best quality forage
possible during i hot spells.
This may help keep the
production of body heat at a
minimum and maintain
metabolism as close to
normal as possible. Cows
often will eat twice as much
forage at night during warm
weather. Take this into
account in your feeding
practices.
Signs of heat stress in cows
include lowered feed intake,
reduced milkfat test,
decreased production, moist
skin and rapid breathing. In
a bad situation they will pant
much like a dog. Cows
showing obvious heat stress
should be moved to a cooler
place and perhaps water
cooled with a hose or
sprinkler.
When thunder showers
threaten, remove cows from
areas with trees and even
open fields. Numberous
cattle are killed each year by
lightning. Extra cow comfort
is needed in humid weather
when temperatures reach
into the mid 70’1 and 80’s.
Cows are more apt to show
heat symptoms in early
morning and early evening
during the warmer months.
Observe them at these times
for more successful
breeding.