%
Cows are negatively impacted by temperatures above about 75 to 80 degrees, and the impact is magnified
by high humidities, hot nights and by any other stresses that are imposed upon cows at this same time
The effects of heat stress can be devastating and long lasting, especially if they do not have the opportunity
to release body heat over night and cool down
Thus our goal is to
Protect cows from exposure to excess heat
Help them dissipate heat from their body
Minimize the amount of heat they produce
Replenish minerals and fluids lost via excess excretions
Minimize other sources of stress in hot weather
Some things that can be done to minimize heat stress include
Provide cows easy access to lots of water Ideally, the water should be close to their feeding and rest
areas
Provide shade, and lols of it to help keep cows dispersed so they don’t create "mastitis pits"
Provide breezes by giving cows access to a breezy knoll, or use fans House cows in a well-ventilated
bam in the heat of the day It is most important that the fans exchange air to remove excess heat and
humidity created by the cows, breezes are secondary Tunnel ventilation of tiestall bams is one option
Stabling cows also has the advantage of providing cows a clean, comfortable rest area that is close to feed
and water.
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MANAGEMENT
BASICS
A Farm Management Course by
Glenn A. Shirk
Penn State Extension Agent
Lancaster County, Pennsylvania
;ss - Article 21
Mid-Atlantic AgriSystems
Air operated flush
valves,
new from Houle
and in stock
Balzer 3350 W*
Calumet 3750
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m 800-222-2948
mmmu 717-529-2782
Use evaporative cooling, where appropriate Install sprinklers - not misters - that wet cows to the hide
with coarse droplets of water Put the sprinklers on a timer and run them about 5 minutes out of every 1 v
20 minutes Don't keep the cows wet continuously To cool down they need to dry off Its the
evaporation of moisture from the hide that cools them To aid the evaporation process, install circulation
fans in the freestall area This will help to encourage cows to return to their stalls to cool down, and to lie
down in a clean area, rather than in a sloppy feed alley Make provisions tor handling extra water and slop
in the feed alleys
If cows body temperatures nse to dangerously high levels and they are panting excessively, it may be
necessary to hose them down Consult your veterinarian
Reduce cows' activity and excitement so they don’t generate more heat
Increase the energy density of the ration, teed less fiber and more gram but be vcrv sure to meet cows
minimum needs tor torage and fiber The digestion ot torages generates more heat than the digestion ol
grains When feeding more gram, it may be beneficial to add more butters to the ration, but not to the
point that it impairs intake due to palatabihty problems
Feed more minerals to replenish what was lost due to increased excretion of fluids
Feed most of the forages in the cooler hours of the night, but lemcmber cows' body temperatures do not
drop until 4 or 5 hours after the sun starts going down
Breed cows so they do not freshen nor have to be bred in the heat of summer Hot weather kills
conception, and it may be months before affected cows recover and start to conceive
USED/RENTAL LIQUID
MANURE EQUIPMENT
1997 Houle 4800 Gal. w/28Lx26 Tires, No Brakes,
Ex. Cond $15,250 j
Spreaders
1998 Houle 6,300 gal. steering, brakes, (6) 28Lx26
tires Coming In
1998 Houle 5,250 gal. steering, brakes,
28Lx26 tires Coming In
1998 Houle 4,800 gal. brakes, 28Lx26 tires Coming In
1998 Houle 5,350 gal. brakes, 28Lx26 tires Coming In
(2) 1998 3,850 gal. tanks, (1) with brakes & 23.1x26
tires, (1) w/o brakes, with 28Lx26 tires CALL
(1) Houle 3,600 gal w/23.1 x 26 tires CALL
1992 Houle 4,250 gal., w/ 23.1x26
tires
(2) Wic Tanks, 2,900 gal/3,300 gal. both in
good shape
Pumps
1998 Houle 32’ multi-purpose lagoon pump CALL
3” transfer pumps, different lengths CALL
Houle 28" Maxi-Pump CALL
1997 Houle 42’Lagoon SUPER PUMP, excellent for
thick manure w/sand $8,150
Houle 42’ and 32’ Agi Pumps CALL
Houle 8’ -12’ Double Gearbox Pump on Trailer...s4,ooo
Butler Lagoon Pump Working Condition $2,000
2 Cadman 3250 Hard Hose Reels CALL
Badger 8' Pump $2,000 080
See Us For Your Alley Scraper Needs
WT .
<• Farm Calendar
(Continued from Page AID)
fov. 5,
Berks County 15th Annual Farm-
City Banquet, Sheraton Berk
shire, Wyomissing, 7 p.m.
Md. and Va. Milk Producers Meet
ing, New Midway Fire Hall,
New Midway, 7 p.m.
Bradford County Extension annu
al meeting, Warren Township
ier Si
$11,250
Lancaster Farming, Saturday, October 24, 1998-A35
Lehigh County Cooperative
Extension annual meeting,
Lehigh County Vo-Tech
School, Schnecksville, 7
p.m.-9:30 p.m.
Mercer County Annual Extension
Maryland Make It Yourself With
Wool Contest, Montgomery
County Ag Center,
Gaithetsburg.
Farm Steel Recycling Field Day,
Loretto, Cambria County Daily
Farm, 10 a.m.-2:30 p.m.
American Woodworker Show,
Fort Washington Expo Center,
thru Nov. 8.
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7-529-2841
Community Building, 7:30
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