| Material Information
||Use of dehydrated Florida elodea in young swine diets
||Department of Animal Science research report
||3 p. : ; 28 cm.
||Combs, G. E ( George Ernest ), 1927-
Wallace, H. D ( Harold Dean )
University of Florida -- Dept. of Animal Science
University of Florida -- Agricultural Experiment Station
||Florida Agricultural Experiment Station
||Place of Publication:
||Swine -- Feeding and feeds -- Florida ( lcsh )
Hydrilla as feed ( lcsh )
Elodea -- Florida ( lcsh )
||government publication (state, provincial, terriorial, dependent) ( marcgt )
non-fiction ( marcgt )
||Statement of Responsibility:
||G.E. Combs and H.D Wallace.
||Animal science research report (University of Florida. Dept. of Animal Science) ;
| Record Information
||University of Florida
||All rights reserved by the source institution and holding location.
||oclc - 80017457
n Department of Animal Science Florida Agricultural
L--Research Report No. AL-1974-2 Expemen' Station "'"
May, 1974 Gaine vhlle, Floida'
USE OF DEHYDRATED FLORIDA ELODEA
IN YOUNG SWINE DIETS'
G. E. Combs and H. D. Wallace2/
ji.-- i 0v. of R3oida
If mechanical harvesting proves to be the most feasible method of controlling
the growth of aquatic plants in Florida waterways a considerable quantity of
material will be available for inclusion in livestock diets.
The present study was designed to evaluate the feeding value of dehydrated
Florida elodea (Hydrilla verticillata) in swine starter diets.
Forty pigs weaned at approximately 3 weeks of age were given diets containing -
0, 5, 10 or 15% dehydrated and ground elodea. The protein content of the elodea
was considered in maintenance of calculated isonitrogenous diets. All pigs were
self-fed in concrete-floored pens with water furnished by automatic watering devices.
The composition of the experimental diets is presented in Table 1. Nutrient con-
tent of elodea is presented in Table 2.
Results and Discussion
The performance data are summarized in Table 3.
Daily gain was not significantly (P < .05) influenced by the inclusion of
either 5, 10 or 15% elodea. Feed intake was also similar for all dietary treat-
ments. Although dietary crude fiber levels (Table 2) increased with increasing
levels of elodea the level present in the highest level of dietary elodea was
only 3.55% and did not influence feed intake.
The variation 'in rate of gain and feed intake was higher with the 10 and
15% elodea levels than with the 0 or 5% levels. Both replications of the 10%
group gained about 11% less than either the 0 or 5% elodea level. One replication
in the 15% group gained equally as well as the 0 or 5% groups whereas the other
replication gained about 12% less. These results would indicate that 5% dietary
elodea is the maximum to be presently recommended and additional studies are
needed before higher levels of dietary elodea can be recommended in starter
1/ Experiment 198B. Other Florida Reports on this subject include Animal
Science Report 73-3.
2/ Combs and Wallace, Animal Nutritionists.
This public document was promulgated at an annual cost of
$69.04 or .07 cents per copy to inform county agricul-
tural directors, ranchers and growers of research results
in swine management and nutrition.
Department of Animal Science
Institute of Food and Agricultural Sciences
Forty early weaned pigs having an initial weight of approximately 14
pounds were given access to diets containing 0, 5, 10 and 15% elodea. Rate and
efficiency of gain were not significantly influenced (P < .05) by dietary
treatment. However, variation in performance with the highest dietary levels
of elodea indicate a maximum of 5% of properly processed elodea be presently
recommended for starter diets.
Composition of Experimental Diets
Elodea 0.00 5.00 10.00 15.00
Yellow corn 73.50 68.80 64.00 59.30
Soybean meal 22.80 22.50 22.30 22.00
Salt 0.50 0.50 0.50 0.50
Defluorinated phosphate 2.50 2.50 2.50 2.50
Trace minerals (CCC)A/ 0.10 0.10 0.10 0.10
Vitamin mix (UF)b/ 0.10 0.10 0.10 0.10
Aureo SP-250 0.50 0.50 0.50 0.50
Dry matter 86.03 86.85 86.75 87.68
Protein 17.80 17.84 19.27 20.19
Ether extract- 1.70 2.01 1.66 1.48
Crude fiber 1.72 2.91 3.46 3.55
Ash 6.19 6.57 8.19 11.14
a/ Calcium Carbonate Co., Quincy, Illinois, contains 20% zinc,
10% iron, 5.5% manganese, 1.1% copper, 0.15% iodine, 0.10%
cobalt and 2% calcium.
b/ Contains 6000 mg. riboflavin; 20,000 mg. niacin; 12,000 mg.
pantothenic acid; 80,000 mg. choline chloride; 10,000 mcg.
Vitamin B12; 2,500,000 I.U. Vitamin A; 400,000 I.C.U.
Vitamin D3 and 10,000 I.U. Vitamin E per pound of premix.
Nutrient Content of Elodea
Dry matter 87.42
Ether extract 1.16
Amino Acid Aspartic Threonine Serine Glutamic
(% of Dry Matter) Acid Acid
7 1.95 0.86 1.10 2.27
Amino Acid Glycine Alanine Valine Cystine
7 2.08 1.26 1.09 0.16
Amino Acid Methionine Isoleucine Leucine Tyrosine
0.19 0.73 1.50 0.04
Amino Acid Phenylalanine Lysine Histidine Arginine
% 0.09 0.93 0.47 1.28
Performance of Pigs Fed Starter Diets
Containing Dehydrated Elodea
% Dietary elodea 0 5 10 15
Av. initial wt., lb. 13.84 13.90 13.82 13.88
Av. final wt., lb. 72.90 70.80 65.77 70.12
Av. daily gain, lb. 1.20a 1.16a 1.06a 1.14a
Av. daily feed cons., lb. 2.28a 2.29a 2.14a 2.238
Av. feed/unit gain, lb. 1.908 1.97a 2.02a 1.95a
No. of pigs 10 10 10 10
Days on test 50 50 50 50
a/ Values in the same line having the same superscript are not
significantly different (P < .05).