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MEAT GOAT PRODUCTION
HANDBOOK
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Feeding
Programs for Meat Goats |
Frank Pinkerton
Bruce Pinkerton |
| Introduction |
The nutritional needs for goats
are shown in a booklet, "Nutrient Requirements
of Goats", published by the National Research
Council, Washington, D.C. (NRC, 1981). It is also
available commercially for about $8. Please note that
the figures given as recommendations are "approximate";
at this time they should be considered as guidelines
only. Further research and field experience will eventually
increase the reliability of future published figures.
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| Nutrient Requirements of Goats |
All breeds, sexes and ages of
goats require the same basic nutrients: protein, energy,
minerals, vitamins and water. The diet must contain
adequate protein; no other nutrient can substitute
for it. However, energy needs may be derived from
dietary carbohydrates (starches and/or fiber) or fats
or even from excessive protein. Nutrients are required
by the goat for: maintenance, growth, gestation, lactation,
and fattening. Maintenance requirements are used for
basal metabolism (maintain body temperature and support
vital functions) and for physical activity. The daily
maintenance requirements may range from 50 to 100%
of total daily nutrient requirements, depending on
whether the animal is also growing, lactating, gestating
or fattening. |
The nutritional requirements
of goats managed primarily for milk production and
those managed primarily for meat production are quite
similar with perhaps two notable differences. First,
dairy goats are expected to milk at relatively high
and persistent levels throughout a 9-10 month lactation;
meat goats need only achieve a 4-7 month lactation
with high initial milk flow, persistency beyond 4
months being of lesser concern. Secondly, dairy goats
are typically fed considerable concentrates (grain
mixtures) to encourage maximum and persistent milk
flow. In contrast, lactating meat goats are not usually
fed concentrates in addition to their forage diet
because the extra kid growth achieved from the extra
milk may well not repay the added costs. As always,
special circumstances may occasionally alter normal
cost-benefit calculations. |
| Forage Supplementation |
To be economically viable, meat
goats must get most of their required nutrients from
forages. See the related chapter for detailed information
on types of forage, nutritive value and stocking rates.
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In those situations in which
the available forage is insufficient in protein or
energy or minerals to support desirable levels of
goat performance, proper supplements should be offered
in adequate quantities but, as always, with due respect
to the likely cost-benefit exchange involved. In actual
practice, most owners provide extra minerals to their
goats year round. Typically these may be in the form
of trace mineralized salt (loose or block), individual
sources of calcium and/or phosphorus (offered separately
or in combination with salt), or commercial mineral
mixtures. Phosphorus content of forages is usually
much lower than calcium content. Adequate phosphorus
being necessary for reproduction and milk production,
supplementation is usually economical. Goats apparently
have a much higher tolerance to copper than sheep
so typical cattle mineral mixes are usually safe for
goats. |
In those grazing situations in
which the plants are too low in protein (or in which
forage quantity is much reduced), additional protein
must be offered to maintain acceptable goat performance.
Protein supplementation may take many forms and cost
per unit of protein may vary widely. Experienced goat
feeders compare protein costs, presence of other dietary
components, palatability, feeding facilities required,
labor cost/convenience, and likelihood of achieving
fairly uniform intake per animal. Feeding a hay of
sufficient protein level is frequently the optimum
solution. In other cases, a lb or so of 20% crude
protein (CP) cubes or 0.5 lb of 40% CP supplement
or 0.5-1.0 lb of whole cottonseed may be economically
sound and nutritionally adequate. Protein blocks of
about 37% CP are widely used during southwestern winters.
Some owners have observed that grazing small grain
pastures for only 1-2 hours per day will provide adequate
supplemental protein (and energy) to their dry pastures
or, lower quality hays. The continuous availability
of roughage, even poor quality hay, is important during
such protein supplementation; it allows the animals
to economically use the protein supplied. |
High protein supplemental feedstuffs,
used only occasionally by meat goat owners, are cottonseed
meal and soybean meal. Whole cottonseed, cull pea
seed and cracked mungbeans have also been used when
conveniently available and priced competitively. Other
protein feeds, such as gluten feeds, mill feeds and
urea (in range blocks), are used as sources of protein.
Choosing between alternative high protein feedstuffs
is largely an economic decision. Dividing the price
of a cwt of feed by its protein content (lb protein/cwt
of feed) will yield the cost of 1 lb of protein and
thus facilitate comparisons. |
When existing pastures and/or
browse are unacceptably low in energy, experienced
goat owners offer good quality hays to maintain performance;
0.5 to 1.0 lb of shelled corn is also used, as is
whole cottonseed. Cost per unit of energy is always
a consideration but, without adequate energy, conception
rates, milk flow, and kid growth rates will be compromised
and gross income reduced. Some producers compensate
in advance for expected declines in forage quality
and availability by keeping protein blocks and hay
available free choice, noting rises in consumption
as pasture conditions worsen. |
Concerning the composition of
high energy feeds, experienced livestock owners know
that there are only small differences between corn,
milo, barley, and wheat. Choosing one over the other
is mostly a question of relative costs per cwt. However,
some goat producers feel that milo should be used
only sparingly, if at all, as it can promote urinary
calculi in males (Ca:P ratio lower than about 1.5:1
predisposes the formation of calculi). In the absence
of definitive research, wheat should probably not
constitute over 50% of a grain mixture. Price frequently
may preclude the use of oats, even though it is an
excellent goat feed. Costly grinding of the grains
for goats is seldom necessary. |
The use of salt-limited protein
and/or energy feeds for goats is rarely practiced.
However, we have found a mixture of ground milo, cottonseed
meal and 8 - 15% salt to be useful. This 16% (or 20%)
protein feed will supplement open, pregnant, and lactating
goats on either dry grass or hay or late summer or
limited grazing. Consumption is slow initially but
then rises to 0.75/1.25 lb/hd/day depending on roughage
intake. |
"Flushing" is the practice
of feeding breeding age goats supplemental protein
and/or energy for 30 days prior to and 30 days following
the introduction of bucks to achieve a weight gain
during this period. This weight gain is usually accompanied
by improved fertility, increased conception and twinning.
Flushing may or may not be necessary for meat goat
production, depending on quantity and quality of available
forage. If flushing is necessary, 0.5 lb or corn and/or
0.5 lb of protein supplement day/head will usually
suffice. |
When planning grazing and supplementation
practices, it is prudent to always remember that a
meat goat enterprise generates cash income from the
sale of surplus kids and cull adults as well as non-cash,
but real, benefits from brush control and pasture
improvement--perhaps $10 - 15 per breeding female
per year. Obviously, adequate year round grazing with
only mineral supplementation is the optimum option;
all other options increase costs but likely would
be economically wise. |
| Creep Feeding |
Commercial meat goat raisers
do not ordinarily creep feed their kid crops on the
premises that: a) their does are capable of weaning
kids acceptable to the market, b) it would not be
cost-beneficial, and c) the logistics would be unworkable
or at least inconvenient. Relatively recent changes
in goat marketing strategies (premium prices for high
quality kids and potential need for heavier, better
conditioned kids for the supermarket and restaurant
trade) may come to alter one or more of these premises.
Widespread use of the newly arrived Boer bucks on
Spanish does of limited milk production capability
may also encourage creep feeding to support the well-known
rapid pre-weaning gaining ability of Boer kids. |
Should you elect to creep feed
your kids, a number of commercial feed mixtures are
available, e.g., lamb grower, beef calf creep, dairy
calf starter or grower, and horse/mule feed. For best
results, the percent protein should be 12-14 (as-fed
basis) and the percent fiber should be no more than
18. However, simple grain mixtures of corn, oats,
barley, or milo would probably also suffice. The crucial
characteristic of a creep feed is that it be palatable
enough to promote adequate intake; coarse grinding
or pelleting (3/16") may improve intake over
meal forms. |
Research on creep feeding of
range-raised kids is virtually non-existent and dairy
goat kids are only infrequently raised on their dams.
Dairy kids weaned at 8 wks have been shown to eat
2-4 oz of concentrate/hd/day and increase intake rapidly
thereafter with feed efficiencies on the order of
6 lb feed/lb of gain depending on body weight. |
| Conditioning Goats |
There are very few goat enterprises
that are analagous to beef cattle feed-lots. The explanations
are several: 1) the market does not want "fat"
goats, 2) goats are not very efficient in converting
high energy feeds to body weight gains, and 3) the
likely cost-benefit ratio is such that it would be
seldom profitable. |
As always, there are exceptions.
Lightweight weanling goats that are in poor condition
due to poor nutrition or parasite load could possibly
be put through a form of feed-lotting which might
be called "conditioning". To reduce costs
and avoid problems commonly associated with animal
density, a controlled grazing scheme, with no or limited
grain might be economically viable. |
Experienced stockmen know the
principle and practice of compensatory gain, i.e.,
a more mature animal that has been nutritionally deprived
and has a low weight-to-frame ratio can, if healthy,
make very rapid and efficient gains--for a short while,
prior to beginning fat deposition. Some producers
with the right blend of feed and other resources might
make a fair return on this type of conditioning program.
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A third example of conditioning
has been only infrequently practiced but, with excellent
management, could likely be done profitably in special
circumstances. This program, as demonstrated by Dr.
Robert Herr of Narvon, PA, uses underweight young
kids or weanlings from traders, auctions, and local
sources. The kids are put through a series of medical
and dietary treatments featuring, initially, high
roughage, and thereafter increases in concentrates.
All are fed in loose housing with exercise lots. There
are two key features to this program: the health practices
and the marketing practices. The kids must survive
and do well and they must be bought cheaply and sold
any time the nearby market provides a profitable price
level. This program is not for everyone; the opportunities
for disaster are everywhere and always present. |
One last observation on conditioning
of meat goats. The typical long and stressful haul
from production areas to slaughter plants yield a
goat in very poor physical condition--so much so they
may well die before they can be scheduled for slaughter.
During a recent marketing study, we found no one in
the New York trade who though it would be possible,
much less profitable, to off-load and recondition
such goats for a few days or weeks prior to slaughter
(Pinkerton, et al., 1993). |
A possible exception comes to
mind. If the animals were properly handled prior to
shipment and if the haul was less than 24 hrs, it
might be feasible to condition goats in the Carolinas
and Virginia prior to sale to the NYC and South Florida
areas, either live or in carcass form. Probably the
only economically feasible program would be a grazing
strategy plus mostly corn and mineral supplement.
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Unfortunately, universities rarely
engage in the type of research needed to generate
the needed information for decision making of this
kind. Producers may well have to do it by trial and
error and stand the cost personally or perhaps get
a slaughter plant to provide partial assistance. But,
the potential seems to warrant a further look. |
References
NRC. 1981. Nutient Requirements of Goats: Angora,
Dairy, and Meat Goats in Temperate and Tropical Countries.
National Academy Press, Washington, D.C.
Pinkerton, F., R.L. Harwell, N. Escobar, and W. Drinkwater.
1993. Marketing channels and margins for slaughter
goats of southern origen. Southern Rural Development
Center, Mississippi State University. |
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