This herd management calendar suggests various practices
that may be carried out during a beef herds annual production cycle.
It is a method to promote better herd health and more consistent quality
of Vermont beef products. Every farm has its different needs and some
suggested practices may not be applicable. However, the intent of
this calendar is to create an awareness of the various options that
may be considered by beef producers in Vermont. Many of the management
tips have been provided by Harlan Ritchie, Michigan State University
Extension beef specialist.
January
(Sept, if fall calving)
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If forage quality is low, consider having a sample
analyzed to determine possible supplement needs. Energy, protein,
phosphorus, selenium and vitamin A are nutrients likely to be deficient.
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Depending on price, corn or corn silage may still
be the cheapest supplemental energy source in certain areas. Use
this formula to compare energy sources on basis of cost per lb.
of total digestible nutrients (TDN): (Cost,$/ton) divided by (2,000
X %dry matter X %TDN in dry matter)= Cost per lb. of TDN. For example,
$28/ton corn silage: $28 divided by (2000 X .35 x .68) = $.059/lb
of TDN.
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If supplemental protein is required, beware of needless
overspending on exotic commercial mixes. Use the following formula
to compare supplemental protein on the basis of cost per lb. of
crude protein (CP): (Cost of supplement, $/ton) divided by (2000
lb. X %CP) = cost per lb. of CP. For example, $250/ton of 44% CP
supplement: $250 divided by (2000 x .44) = $.284/lb. of CP.
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Supplemental mineral needs vary from region to region,
depending on soils and vegetation. A general purpose mix that has
proven useful for wintering cow herds is: 45% dicalcium phosphate;
20% selenium 200 premix (supplies 40 ppm Se); 35% trace mineral
salt. In areas where magnesium, copper, zinc, cobalt or manganese
are extremely deficient, you will need to increase the levels of
these elements.
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Vitamin A may be fed in supplement or injected.
Injections last 90 to 100 days. Injected dosage should be 2 to 3
million IU per cow.
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Be sure the cow herd has adequate water supply.
Depending on body size and stage of production, cattle need 5 to
11 gallons per head per day, even in the coldest weather. Fresh
water supplied by an electric or frost-free waterer is preferred
over a brook supply for reasons of water quality and environmental
protection.
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Provide cattle some protection during severe weather
to reduce energy requirements. A woodlot or some form of natural
or man-made windbreak is ideal.
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The critical cold temperature for cows is 15 degrees
F. For each 10 degree drop below 15, add 1.5 pounds of TDN to the
ration. 1.5 pounds TDN equals 3 pounds hay, 2 pounds corn, or 6
pounds corn silage. Critical temperatures vary further depending
on condition of hair coat (i.e., wet or dry).
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If possible, separate thin cows or cows that lack
adequate body condition from the herd and feed separately. Realize
that once the beef cow calves and lactation commences, her nutritional
requirement increases about 25%.
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Cows within 60 days of calving should be started
on an increased energy- protein ration. Increase TDN by 2 lb.; crude
protein by 2 lbs.
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Watch for evidence of abortions. Get placenta specimen
to a veterinarian or laboratory for immediate diagnosis.
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Check for lice and treat all cattle with pour-on
or dust bag immediately. Check with your vet for recommended product
use.
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Vaccinate cows with E.coli vaccine to prevent scours
in calves through passive immunity or prepare for the use of an
orally administered product for the calf within 12 hours after birth.
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Prepare calving facilities. A clean well bedded
area is essential as is a well protected stall for ease of observation
and emergency use.
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Separate first-calf heifers from herd, if possible,
for closer management and observation.
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Start the year off right and increase your knowledge
by planning a yearly management, feeding and marketing program.
Plan for a more innovative pasture management program for your farm.
Catch up on reading books and articles on beef and forage production.
Attend meetings and seminars and become more involved in the beef
industry.
February - March
(Oct/Nov, if fall calving)
- For some herds, calving season is here. Check the following items:
- Frozen colostrum for weak calves.
- Calving assistance equipment.
- OB chains and handles.
- AI arm gloves for clean palpation and birth assistance.
- Rope and halter for stall birthing assistance.
- Wireless FM intercom/ monitor, provided house and barn share
the same power system.
- 7 percent iodine for calf's navel.
- Ear tags or numbered metal ear clips.
- Selenium injections if white muscle disease is apt to be a problem.
- Vitamin A injections for cows and calves if forage quality is
low. g)
- Pharmaceuticals for scours and respiratory problems. At the
first sign of scours, either milk, viral or bacterial, treat the
calf and monitor. Have a plastic calf balling gun available to
administer calf boluses. Stop the spread of a potentially deadly
problem. Consult with your vet.
- Electrolytes for dehydrated calves and an esophageal calf feeder
(tube type) for administering it.
- Portable 200 lb. hanging scale with 2 lb. increments for recording
birth weights.
- In extremely cold weather, be prepared to provide supplemental
heat for chilled, weak calves. Heat lamps, specially constructed
boxes with warm air blowers, hair dryers, warm water bath, a bed
by the wood stove or any combination of the above. Minutes, even
seconds are critical when it comes to weak calves. Consult with
your veterinarian immediately; it will be the single most profitable
decision you will ever make in the beef business.
- For maximum disease prevention, get colostrum into the calf
as soon after calving as possible (four hours or sooner). Have
a source for frozen colostrum such as a nearby dairy farm with
a similar health environment.
- If cows calved in thin condition (condition score of 4 or less),
they will need to receive enough energy to be in moderate to good
condition by the start of breeding season.
- Plan your spring fertilizer needs. Soil tests, taken in the
fall, should determine precise needs. Over-fertilization is neither
cost-effective nor environmentally compatible. Learn more about
your soil's needs.
- Check herd frequently; be ready to assist cows not making progress
after one to two hours of hard labor.
- Give first calf heifers extra attention.
- Don't leave cows and their calves in tight quarters for more
than one or two days. Provide new- born calves a dry, south facing
calf hutch in which to lie down. Prevent cows from access to it
and keep it cleaned out and re- bedded with clean hay or straw.
- Try feeding late in the day to encourage more cows to calve
during the daylight hours.
- Record calf weight, tattoo number, calving ease and date of
birth in a field record book. Record the birth on a heat expectancy
chart/calendar to simplify the tracking of birthing, heat cycling
and re-breeding. Give serious consideration to the use of a computer
program for cow/calf operations if you presently own a PC. They
will simplify and organize your records, giving you a better understanding
of costs and cattle productivity.
April - May
(Dec/Jan, if fall calving)
- Prepare for pasture season:
- Check fences and make repairs.
- Provide supplemental magnesium oxide in your mineral mix to
prevent grass tetany.
- Plan a fly control program. Insecticidal ear tags in both ears
for cows and one ear for calves works well and will assure better
gains and less chance of pinkeye problems. For best results consider
rotating from year to year between pyrethroid ear tags and those
containing an organophosphate. Remove tags in the fall; do not
leave them in year-round.
- Castrate and dehorn all calves before going to pasture.
- Get ready for breeding season:
- If you use A.I., order semen early. Check your cattle handling
equipment and replace lost or unreadable ear I.D. tags.
- If your semen tank is 10 years old or older have it checked
for its ability to hold liquid nitrogen. Consult with a professional
semen service about a maintenance/filling contract.
- If breeding naturally, be sure you have adequate bull power.
Consider a breeding soundness exam of your bull, especially if
he is young and unproven. Nationally, 10 to 20 percent of the
bulls are questionable or unsatisfactory breeders. Try to have
bulls in moderate to good condition before turning them out with
the cows. Also, they should have received their annual booster
vaccinations (IBR, BVD, PI3, lepto-5, vibrio and haemophilus).
- If lactating cows are thin and have not started to cycle, feed
more energy.
- Free-choice mineral mix should contain 8 percent phosphorus,
which is important for maximum fertility. If your area is known
to be deficient in specific trace minerals, make sure your mineral
mix is well fortified with these minerals.
- If IBR, BVD, leptospirosis and vibriosis are problems, vaccinate
cows and heifers no later than three weeks prior to breeding season.
DO NOT vaccinate pregnant cows with modified live BVD virus vaccine.
- Breed heifers one heat period before cows so they have extra
time to recover from calving next year. Have heifers weigh 65%
of mature weight at breeding time.
- Consider using appropriate estrus synchronizing techniques to
allow a narrower calving window. Consult your veterinarian.
- Get haying equipment ready for early harvest. Extended periods of
down time can mean the difference be- tween a high or low-quality
hay crop.
- Research suggests that de-worming the herd before going to pasture
can result in significantly heavier calf weights in the fall.
- Quickly "blaze" graze 1/3 to 1/2 of permanent pasture
in the spring and early summer. Broadcast legume and pasture grass
seed prior to turning cattle into smaller pasture paddocks. They will
push the seed into the soil giving it plenty of time to grow before
the next grazing rotation. Utilize rotational grazing methods and
control your cattle and pasture growth effectively with single strand
electric fence subdivisions.
June - July
(Feb/March if fall calving)
- If calves are four months old, vaccinate for clostridial diseases
(blackleg, etc.) if they are a problem in your area.
- If pinkeye is likely to be a problem, consider the following preventive
and therapeutic measures. Prevention:
- Make sure herd has been receiving adequate Vitamin A.
- Vaccinate against IBR virus.
- Consider pinkeye vaccination.
- Control face flies.
- Clip pastures so tall, course grasses don't irritate eyes. Rotational
grazing is the preferred method of pasture management.
- Provide ample shade.
- Therapy:
- Administer an intramuscular injection of long-acting oxytetracycline
(LA-200) when symptoms are first noticed.
- Inject 1 cc antibiotic into the eyelid.
- Shut out irritating sunlight by gluing a patch over the
eye with backtag cement or by locking the animal in dark quarters.
- If too many females return to heat, take a good look at (1) your
bull; (2) your cows' nutrition; (3) reproductive disorders such as
IBR, lepto, vibrio, trichomoniasis, hemophilus, cystic ovaries or
uterine infection. Consult your veterinarian.
- Remove bulls after 90 days of breeding (preferably 60 days). Calves
born after mid-May don't do well in summer heat and have lighter weaning
weights. Stop breeding the cow herd by August 1 to avoid late calves.
- If it looks like pastures will run out, prepare an emergency feed
source such as a planting of summer annual sudangrass, brassicas (rape
or turnips) or tritcale. Consult with a forage seed company specialist.
Start supplemental feeding before pastures are gone to extend grazing
as long as possible.
August - September
(Apr/May, if fall calving)
- Line up supplies and pharmaceuticals for fall roundup and weaning.
Consider the following:
- Ear tags to replace lost identification tags.
- Deworming products.
- Grub and lice products.
- Vaccines- IBR, PI-3, BVD, hemophilus, 7-way clostridial, BRSV,
5-strain leptospirosis, vibriosis, rabies.
- Note that several of the above vaccines are available in combinations,
requiring fewer injections.
- Schedule veterinarian to vaccinate replacement heifer calves
for brucellosis. Check state regulations as they may be changing.
Laws vary from state to state, be aware of the regulations in
the states in which you wish to market your cattle.
- Plan your marketing programů private treaty, VBPA feeder calf sale
or retained ownership on farm or in a custom feedlot. Consult with
the non-dairy livestock extension specialist and with other producers.
- Prepare to have your calf crop weighed and graded through the VBPA
Weighing and Grading Program. Good recordkeeping is essential. For
larger herds or producers wishing to control costs and monitor herd
performance closely, computer programs are invaluable.
- New forage seedings should be established no later than August to
assure stand survival. Contact an experienced seed dealer or your
local Extension office for details.
- Get facilities ready for working cattle. If yours are not adequate,
contact your area Extension office for corral plans or a consult a
facility manufacturing company.
- Unless your calves have already been on creep feed, start putting
out grain in an area where they can learn to eat out of a bunk. It
may reduce stress at weaning time and they will more easily adjust
to a feedlot environment. Do not overfeed, buyers will discount calves
that are too fleshy.
- Performing as many of the above practices as possible while the
calves are still on the cow will minimize stress when they are weaned.
One month prior to weaning is near-ideal.
October
(June, if fall calving)
- It's fall round-up and processing time for many herds, which includes:
- Weaning the calf crop.
- Selecting replacement heifer calves. Use heifers from cows with
records of consistently early and trouble-free calving. Select
on EPD's, individual performance records and functional traits
such as structural soundness, temperament, fleshing ability and
muscle thickness. To maintain herd size, you must retain approximately
half the heifer crop at weaning time.
- Vaccinating retained heifer and bull calves.
- Treating the entire herd for internal and external parasites.
- Culling problem cows and marginal producers.
- Pregnancy-testing and culling open cows. Use the three O's method
of culling: Open, Old and Ornery. The object is to create a uniform
calf crop in the future by reducing the calving interval and building
a uniform cow herd. Cull those extremely large-framed cows and
market them in the same truck with the little bitty cows. It's
common-sense genetics.
- Consult your veterinarian for a replacement heifer calf vaccination
program that fits your needs. Here is one that has been proven to
be applicable to many operations:
- IBR (Rednose)
- PI3 (Para-influnza)
- BVD (Bovine Viral Diarrhea)
- BRSV (Syncytial Virus)
- 7-way clostridial f. Haemophilus somnus
- 5-strain leptospirosis
- vibriosis
- Brucellosis
- Except for brucellosis, these same vaccines can be administered
to retained bull calves.
- Fall is a good time to take soil tests and topdress hay and pasture
fields with potassium and phosphorus as needed.
November
(July, if fall calving)
- Wean summer calves before hard winter sets in. Unless you creep
feed, they will do better on grain plus hay or silage than if left
on their mothers.
- If you keep calves to feed over the winter, aim for the following
minimum levels of performance: Replacement heifer calves: 1 to 1.5
lb/day on smaller-framed heifers; 1.5 to 1.75 lb/day on larger-framed
heifers. Show heifers may need to gain even faster. Steer calves to
go to grass the following summer. Minimum of .5 to maximum of 1.75
lb/day. Steer calves to be finished by following spring or summer:
Maximize the rate of gain (2.5 lb/day or greater, depending on the
breed). Bull calves to be fed out and sold in the spring as yearlings:
Similar to finishing steers. (Bulls will not get as fat as steers
at the same level of performance).
- Be aware of the cut-off date for using grubicides in your region.
If in doubt, consult your veterinarian.
- The use of Rumensin or Bovatec with winter growing rations will
greatly increase the rate of gains by allowing greater digestive utilization
of feeds. Consult your feed representative.
December
(August if fall calving)
- Evaluate the condition of cows and manage accordingly:
- Cows should have a condition score (CS) in the range of 5 to
7- moderate to good condition- at calving time to consistently
rebreed at the rate of 90 percent by 80 days after calving.
- Sort out and feed thin cows (less than 5 CS) so they can achieve
a CS of moderate to good by the time they calve.
- For those herds wintering moderate-to-good CS cows on harvested
feedstuffs, use the following rations as a guide: Weaned heifer calves
(to gain .5lb/day):
- Full-feed of mixed legume-grass hay (11 to 12 lb.), plus 6 to
7 lb. grain.
- 40-50 lb. corn silage, plus 3/4 lb. soy or equivalent.
- 5 lb. mixed legume-grass hay, plus 30 to 35 lb. corn silage.
- Coming 2-year-old pregnant heifers, thin 3-year-olds and thin
mature cows:
- Full-feed of mixed legume-grass hay (20-30 lb.), plus grain,
according to body condition.
- 45 to 55 lb. corn silage, plus 3/4 lb. soy or equivalent.
- 15 lb. mixed legume-grass hay, plus 15 to 20 lb. corn silage.
- Dry cows, mid-pregnancy:
- 20 to 25 lb. grass hay.
- 40 to 45 lb. corn silage, plus 3/4 lb. soy or equivalent.
- Dry cows, late pregnancy (to gain 0.9lb./day):
- 25 to 30 lb. mixed legume-grass hay.
- 50 to 55 lb. corn silage, plus 3/4 lb. soy or equivalent.
- 15 lb. mixed legume-grass hay, plus 20 to 25 lb. corn silage.
- Lactating cows:
- Full-feed of mixed legume-grass hay, plus grain if necessary.
- 60 to 80 lb. corn silage, plus 1 to 2 lb. soy or equivalent.
- 15 to 20 lb. legume hay, plus 30 to 35 lb. corn silage.
- Herd sires:
- Full-feed of hay or silage plus grain, according to body
condition.
- Coming 2-year-old bulls that completed their first breeding
season in thin condition will require 10 to 13 lb. grain,
plus a full feed of hay, or a full-feed of corn silage, plus
1 lb. of protein supplement.
- For a thin cow's condition to raise by one score, she needs to gain
about 80 lb. during the last 90 to 100 days of pregnancy in addition
to the 80 lb. of fetal weight that is being gained. To accomplish
this, you will need to feed some additional grain, even if it is in
the form of corn silage. Here are some examples:
- 25 lb. mixed legume-grass hay, plus 6 lb. grain.
- 55 to 60 lb. corn silage, plus 1 lb. soy or equivalent.
- Put priorities on winter forage supply:
- Feed lowest-quality forage to mature dry cows during late fall/early
winter (mid-pregnancy).
- Feed medium-quality forage to dry cows during late pregnancy.
- Feed highest-quality forage to young stock and to lactating
cows.
- Offer a properly balanced salt-mineral mix free-choice to all classes
of breeding cattle. Refer to January #4.
- Spot check weight gains of replacement heifers to help ensure appropriate
progress to target weights. Winter environments can "derail"
initial plans. Make adjustments in the feeding program as necessary.
- The end of the year is a good time to review or evaluate various
spects of your cattle business. This is especially critical in time
such as now when we are in a "number crunch" and markets
are depressed. The following questions can be asked:
- Do you have adequate inventories and financial records to be
able to evaluate your costs of production? If so, are you doing
what you can to control cost while optimizing production?
- Are you satisfied with your genetic program? What adjustments
need to be made? This is an appropriate time to develop expected
progeny differences (EPD) priorities and acceptable ranges for
the traits that are important to your program and your customers.
Develop a genetic shopping list well in advance of when you are
ready to start buying semen or a bull. If you need add-itional
information on production or financial records, contact your local
Extension Livestock Specialist.
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