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December 1996 Sheep Update
Livestock Update, December 1996
Steve Umberger, Animal and Poultry Sciences
Record Year For Sheep Production In Virginia.
The average price
paid for Virginia slaughter lambs through October 1996 was $.91
per pound. That marks the highest average price on record.
Prices averaged over $1.00 per pound in April and May and didn't
dip below $.80 per pound until September. In comparison, the
average price paid for slaughter lambs in 1995 was $.81 per
pound. Including 1996, this was the third consecutive year of
strong prices, which has contributed to record levels of
profitability for Virginia sheep producers. Most of the reason
for higher prices can be attributed to steady consumer demand for
lamb and the 24% decline in National sheep numbers that occurred
over the last four years. Even with the exceptionally high lamb
market, there has been little, if any, rebuilding of sheep
numbers in the U.S. While Texas received some much needed rain
this fall, ranchers are still taking a wait and see attitude on
whether their three-year drought has come to an end. If the
rains continue, a moderate rebuilding of Texas sheep flocks will
likely occur in 1997. Given the current situation, all signs
indicate that Virginia sheep producers can expect another year of
strong lamb prices. Such will not be the case for wool, which
accounts for less than 3% of gross revenue for Virginia
producers. Poor wool prices in 1996 were attributed to low
consumer demand for wool products in the U.S. and the poor
economy of major wool consuming countries, such as China and
Russia. It will take at least another one to two years before
there is any significant change in the depressed wool market.
Virginia sheep producers can take advantage of the positive
outlook for sheep production by expanding their flock size
through the retention of high quality replacement ewe lambs this
fall. Assuming a very conservative drop of $.20 per pound in the
lamb market over the next five years, replacement ewes placed
back in the flock this fall should yield a 100 percent return on
investment when amortized over the next five years. Ewe lambs
should weigh at least 100 pounds at the time of breeding. Sixty
days after ram removal, ewe lambs should be checked for pregnancy
using real-time ultrasound. All lambs diagnosed as being open
should be sold for slaughter. To ensure proper development, ewe
lambs should receive 1 lb of grain daily up through the time of
lambing. To avoid excessively large lambs at birth, grain should
not be increased the last six weeks of pregnancy.
There's Still Time To Register For 1996 Virginia-North Carolina Shepherds'
Symposium.
Sheep producers who have not pre-registered but would
like to attend the 1996 Virginia-North Carolina Shepherds' Symposium still have
time to do so. The pre-registration deadline has been extended
to Monday, December 2. The Symposium, which is scheduled to be
held at Virginia Tech on December 5 and 6, features a
comprehensive educational program that will benefit novice and
established sheep producers alike. Some of the topics to be
covered include an in-depth session on sheep diseases and health
management, an outlook on sheep production in the U.S., an update
on the sheep industry in New Zealand and Australia, a detailed
examination of the "heavy muscle" (callipyge) gene in sheep,
information on artificial insemination, sheep grazing and lamb
feeding management, current techniques for coyote control, and
sheep producer presentations on different aspects of lamb and
wool production. For a copy of the program brochure and pre-
registration information call (540) 231-5253.
The Value Of Alternative Grains For Sheep Production.
When
additional energy and protein are required, corn and soybean meal
commonly form the basis of the grain portion of most sheep diets.
However, when justified by supply or price, other grains may
replace all or part of the corn and soybean meal in a diet. The
energy values of certain small grains such as barley, oats, and
wheat are 90, 80, and 100% of corn, respectively. Barley can
replace up to 100% of the corn in a diet, while oats can replace
50 to 100% of the corn in a diet. The higher replacement rate
for oats is used for breeding sheep, while the lower rate is used
in creep feeds and finishing diets for lambs. Because the
carbohydrate fraction of wheat is so highly digestible, wheat can
only be used to replace up to 50% of the corn in a diet.
Alternative sources of protein to replace soybean meal include
cottonseed meal, peanut meal, corn gluten feed, and dry
distillers grains. To determine if other feeds are a better
value than corn or soybean meal, comparisons can be made based on
the cost per unit of nutrient. If corn is selling for $0.06 per
pound and barley is selling for $0.05 per pound, is barley a
better buy even though it has 90% of the energy value of corn?
To determine which is the better buy, divide $0.06 per pound by
92% TDN for corn to get a value of $0.065 per pound of TDN.
Divide $0.05 per pound by 85% TDN for barley to get a value of
$0.059 per pound of TDN. In this example, even though barley has
a lower energy value than corn, it is still a better buy. If
alfalfa hay is selling for $120 a ton and soybean meal is selling
for $250 a ton, which is the better buy for crude protein?
Divide $0.06 per pound by 15% crude protein for alfalfa hay to
get a value of $0.40 per pound of crude protein. Divide $0.125
per pound by 44% crude protein for soybean meal to get $0.284 per
pound of crude protein. In this example, even though alfalfa hay
is selling for less than half the price of soybean meal, soybean
meal is still a better buy for crude protein than alfalfa hay.
Caution should be used when substituting alternative feeds for
corn and soybean meal when they appear to be a better value.
Although alternative feeds may be comparable in nutrient
analysis, the animals may not perform similarly. Therefore, it
is important to know if there are problems with certain
alternative feeds, and to monitor the performance of the sheep
flock once changes have been made. For a complete guide to
feeding the sheep flock, request the Extension publication
"Feeding Sheep" (410-853, revised 1996) from your local Virginia Cooperative Extension Office.
Sheep Working Pens Are A Necessity.
Timely management practices
such as vaccinations, foot trimming, and internal parasite
control are more likely to happen when working pens are a on the
farm. Otherwise, there is a tendency to delay or avoid getting
the work done. Unfortuanately, this may lead to unnecessary
death loss and poor flock performance. The six essential
components of an effective working facility for sheep are: 1)
large holding pen; 2) crowding pen; 3) crowding chute; 4) long
narrow working chute with cutting gates; 5) foot bath; and 6)
loading chute. The general space requirement for the large
holding pen is 8 sq. feet per ewe for ewes with lambs or 4.5 sq.
feet for ewes only. The space requirement for a pen footbath is
3.7 sq. feet per ewe. The crowding chute, working chute, and
loading chute should have solid walls. During periods of
inclement weather, it is extremely helpful when the primary
working area is under roof. Basic plans for sheep working pens
are available. For more information write or call Steve
Umberger, Department of Animal and Poultry Sciences, Virginia
Tech, Blacksburg, VA, 24061-0306, (540) 231-9159.