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MEAT GOAT PRODUCTION HANDBOOK
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Use
of Goat Milk and Goat Meat as Therapeutic Aids in
Cardiovascular Diseases |
John R.
Addrizzo |
Preface |
One of the 5 risk factors for
coronary/arteriosclerotic heart disease and peripheral
vascular disease is an elevation in the lipid profile,
particularly cholesterol and the low density lipoprotein
fraction, especially if the ratio of LDH-C/HDL-C is
greater than 5. Elevations for total cholesterol greater
than 200; LDL-C greater than 150 and HDL-C less than
35; and triglycerides greater than 150 place the patient
at an elevated risk of coronary heart disease. |
Introduction |
In an attempt to control the
hyperlipemic state, diet and exercise are utilized
as the first line of defense, our office has offered
the following diet over the last eight years. We have
found it patient-tolerant while lowering the hyperlipemic
state in 80% of the patients. |
Only 20% of patients needed the
introduction of pharmacological agents to achieve
satisfactory levels. Once the diet was adhered to
for greater than 6 months, both significant reduction
in the dyslemic state and weight occurred. Of interest
is the ease of maintaining both risk factors at a
satisfactory level. |
Ethnic Diet 1 |
Fish |
Chicken |
Vegetables (steamed) |
Goat Meat (Chevon) |
Venison |
1 slice of bread |
Water with lemon |
No desserts |
Fruits only |
1 Restaurant portions;
Typical: Chinese, Mediterranean, Mexican or
Indian diet. |
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The diet consists of ethnic food
base prepared with care as to low saturated fatty
foods, stemmed vegetables and lean red meats. Culturally
programmed, the average American consumes beef - 130
pounds; pork - 65.5 pounds; chicken - 63 pounds; turkey
- 15 pounds and fish - 15 pounds per year. The American
diet is therefore disproportionally high in saturated
fats. Thus, with proper dietary intervention, it is
possible to reduce the mean blood cholesterol by 3
to 23% in 90% of the test population (Emholm et al.,
1982). Characteristically, the American diet contains
red meat in the form as mentioned of primarily beef
and pork with veal and lamb as secondary choices.
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The recent shift away from red
meats to poultry and seafood is an attempt to achieve
a lower fat/cholesterol diet. Beef consumption in
the United States declined by 15% over the ten year
span from 1975 to 1985, while poultry increased by
45% during the same period (U.S.D.A., 1989). However,
due to the development of hormonal contamination and
salmonellosis, even chicken is not a very acceptable
alternative; the same fate has affected fish with
the great concern about chemical and bacterial contamination.
Moreover, the last decade's consumption of fish has
risen by 25% (12 1/2 to 15 1/2 pounds per year). According
to Consumer Reports (1992), almost 40% of the fish
sampled was fair to poor in quality and 30% was downright
poor. In addition, chemical contamination with PCB,
mercury, pesticides and lead range from 45% to 90%
depending upon the species and the water habitat.
This leaves chevon as the best alternative, it being
the leanest of the red meats and usually free of bacterial
and chemical contamination.
Nutrient Composition of Goat Meat |
Goat meat cuts have fat content
50%-65% lower than similarly prepared beef (but with
a similar protein content) and have between 42%-59%
less fat than lamb and have about the same fat to
25% lower than veal. This pattern was repeated for
the cooked samples (James et al., 1990). In addition,
the percentage of saturated fat in goat meat is 40%
less than chicken (without skin) and is far below
beef, port and lamb by 850, 1100, and 900%, respectively
(U.S.D.A. 1981, 1989). |
Devendra (1988) states that unsaturated
fatty acids predominate in goat meat (68.5% to 72.3%)
compared to 50% found by Eastridge (1990); these agree
with the U.S. Handbook (1989) value of 69%. Lauric,
myristic and palmitic acid are saturated fatty acids
of the hypercholesterolemic group found in goat meat;
their percentage is 2%, 2.6%, and 27.6%, respectively.
The non-hypercholesterolemic group of fatty acids
consists of one saturated fatty acid, C:18.0 stearic
acid (14% to 16.6%) and the unsaturated fatty acids,
C:18.1 oleic (30.1% to 37%), C:18.2 linoleic (13.4%)
and C:18.3 linolenic (.4%). Universally, the fatty
acid and protein values are constant with the intramuscular
fat disposition of .94% to 1.4% in the indigenous
breeds of the Indian subcontinent when compared to
Alpine, Toggenburg, Nubian, and Saanen goats (2.01%)
over a range of live weights (Devendra, 1988). |
Cholesterol content of chevon
is controversially similar to that of beef, lamb,
pork, and chicken and much lower than some dairy,
poultry products and some seafoods. Further studies
of goat meat cholesterol indicates levels of 76 mg%
compared to 70 mg% for beef, fish, and lamb and 60
mg% for pork and chicken (Pond and Maner, 1984; Potchoiba
et al., 1990). Cholesterol of beef meat, uncooked,
ranges from 36 mg% to 46 mg% to 78.2mg% (Stromer et
al., 1966; Terrell et al., 1969) compared to 57.8
mg% to 69.5 mg% of chevon (Park et al., 1991). |
The key fact is that your blood
cholesterol level depends less on your intake of cholesterol
from foods and more on the amount of saturated fats
consumed, especially the ratio of polyunsaturated
to saturated fats. Therefore, by reducing the consumption
of foods high in saturated fats, a more effective
measure of cholesterol control is achieved. Polyunsaturated
fats and monosaturated fats pack less tightly and
are liquid at room temperature which, unlike beef
and lamb, is common to the drippings from goat meat.
The inspection of congealed fat drippings is a visual
index as to the degree of saturated fats present.
This is noticeably absent in goat meat. |
The wealth of documentable evidence
indicates that goat meat (chevon), regardless of age,
breed, or region, will supply a high quality protein
source along with a healthy fat (increased unsaturated
fats/saturated fats ratio) with a minimal cholesterol
intake risk. In addition, chevon contains comparatively
higher values of iron, potassium and thiamine associated
with a low sodium level (Eastridge and Johnson, 1990);
see Table 1. All essential amino acids are present
and a low calorie per serving value is available.
As a result of the above, chevon should be designated
as the naturally occurring health meat. |
With respect to goat milk and
the cardiovascular system, one finds it similar to
cow's milk. By lowering the fat content to the "skim"
level, it would be a very acceptable nutritional milk.
Goat milk's only deficiency is a low folate level;
otherwise, it is a complete dietary supplement. It
is used in treating cow's milk allergy and is extremely
palatable due to natural homogenazation; it also supplies
all calcium requirements and is most like human milk
in comparison. |
Conclusion |
The goat's genetically determined
distribution of body fats (to peritoneum and internal
organs, no intermuscular) and composition of these
fats (low saturated; high polyunsaturated/saturated
fat ratio) enable it to be considered "user friendly"
in our modern health conscious society. In addition,
the goat supplies a nutritious "white gold"
milk. |
Table
1. Comparison of Nutrient Analysis of an 85
Grams (3 Ounce) Cooked Portion of Carcass Composite
Meat from Goat and Chicken.* |
| Nutrient |
Goat**
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Chicken* |
| General |
| Fat, g |
12.3 |
11.6 |
| Protein, g |
22.0 |
23.2 |
| Calories, Kcal |
203 |
203 |
| Cholesterol, mg |
94 |
75 |
| Minerals |
| Iron, mg |
2.2 |
1.1 |
| Calcium, mg |
25.3 |
12.8 |
| Sodium, mg |
77.1 |
69.7 |
| Zinc, mg |
4.3 |
1.7 |
| Magnesium, mg |
23.7 |
20.0 |
| Potassium, mg |
308.3 |
189.6 |
| Phosphorus, mg |
57.8 |
154.7 |
| Copper, mg |
1.7 |
.06 |
| Vitamins |
| A, IU |
34 |
137 |
| Thiamin (B1), mg |
.32 |
.054 |
| Pyridoxine (B4), mg |
.17 |
.34 |
| Cobalamin (B12), mg |
.56 |
.26 |
| Pantothenic Acid, mg |
.30 |
.88 |
| Niacin, mg |
2.52 |
7.20 |
*Nutrient Profile
information taken from USDA Human Nutrition
Handbook 8-5. and Johnson (1987) utilized twelve
carcasses from Florida Wood and Wood crossbred
goats to determine the nutrient composition
of goat meat. Sides from four carcasses in each
gender class, including castrate, intact male,
and female were dissected into separable components
of bone and soft tissue. Gender class did not
significantly impact nutrient composition of
goat meat. Table 1 shows many of the major nutrients
found in goat along with a comparison of the
nutrient composition versus chicken. Comparisons
between goat meat and chicken is not presented
to indicate that one is more desirable than
the other, but to help relate the nutrient levels
found in goat to a common meat consumed in the
United States. |
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References |
1. Consumer Reports. 1992.
"Is our Fish Fit to Eat", February, pp.
103-120.
2. Devendra, C. 1988. The nutritional value of goat
meat. Proceedings (IDRC-268e) Goat Meat Production
in Asia. March 13-18, pp. 76-86.
3. Eastridge, J. S. and D. D. Johnson. 1990. The effect
of sex class on nutrient composition of goat meat.
International Goat Production Symposium, Oct. 22-26,
pp. 143-146.
4. Emholm, C., J. K. Huttunen, and P. Pietinen. 1982.
Effect of diets on serum lipoproteins in a population
with a high risk of coronary heart disease. N Engl
J Med., 307:850-855.
5. James, N. A., B. W. Berry, A. W. Kotula, V. T.
Lamikanra, and K. Ono. 1990. Physical separation and
proximate analysis of raw and cooked cuts of chevon.
International Goat Production Symposium, Oct. 22-26,
pp.22.
6. Nutritive Value of Foods. 1981. Home and Garden
Bulletin, Number 72, U.S.D.A., Washington, D.C., U.S.
Government Printing Office.
7. Park, Y. W., M. A. Kouassi, and K. B. Chin. 1991.
Moisture, total fat and cholesterol in goat organ
and muscle meat. J. Food Science 56(5):1191-1193.
8. Pond, W. G. and J. H. Maner. 1984. Swine Production
and Nutrition. The Avi. Publishing Company, Inc. Westport,
Connecticut.
9. Potchoiba, M. J., C. D. Lu, F. Pinkerton, and T.
Sahlu. 1990. Effects of all milk diet on weight gain,
organ development, carcass characteristics and tissue
composition, including fatty acids and cholesterol
contents of growing male goats. Small Rumin. Res.
3:583-592.
10. Stromer, M. H., D. E. Goll, and J. H. Roberts.
1966. Cholesterol in subcutaneous and intramuscular
lipid depots from bovine carcasses of different maturity
and fatness. J. Animal Sci. 28:454.
11. Terrell, R. N., G. G. Suess, and R. W. Bray. 1969.
Influence of sex, live-weight and anatomical location
on bovine lipids. 2. Lipid components and subjective
scores of six muscles. J. Animal Sci. 28:454.
12. U.S.D.A. Handbook #8, 1989. |
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