Group Title: Department of Animal Science research report - University of Florida Department of Animal Science ; AL-1974-10
Title: A simplified feed mixture vs. a more complex mixture for growing-finishing swine
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Permanent Link: http://ufdc.ufl.edu/UF00073061/00001
 Material Information
Title: A simplified feed mixture vs. a more complex mixture for growing-finishing swine
Series Title: Department of Animal Science research report
Physical Description: 3 p. : ; 28 cm.
Language: English
Creator: Wallace, H. D ( Harold Dean )
Combs, G. E ( George Ernest ), 1927-
University of Florida -- Dept. of Animal Science
University of Florida -- Agricultural Experiment Station
Publisher: Florida Agricultural Experiment Station
Place of Publication: Gainesville Fla
Publication Date: 1974
 Subjects
Subject: Swine -- Feeding and feeds -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
Statement of Responsibility: H.D. Wallace and G.E. Combs.
General Note: Caption title.
General Note: "July, 1974."
Funding: Animal science research report (University of Florida. Dept. of Animal Science) ;
 Record Information
Bibliographic ID: UF00073061
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 50673652

Full Text



Department of Animal Science Florida Agricultural
Research Report No. AL-1974-10 Experiment Station
July, 1974 Gainesville, Florida


A SIMPLIFIED FEED MIXTURE VS. A MORE COMPLEX
MIXTURE FOR GROWING-FINISHING SWINE1/

H. D. Wallace and G. E. Combs2/


A simplified corn-soybean meal type mixture has been widely accepted as a
growing and finishing feed for swine. The combination of these two major in-
gredients provides a palatable feed which is relatively uniform and dependable
in quality, mixing and storage properties. It is high in energy and provides
all needed amino acids when formulated to specific protein levels. With the
addition of minerals and vitamins in prescribed amounts the mixture becomes an
excellent complete feed for swine.

The experiment reported here was undertaken to compare such a mixture with
a more complex mixture that contained 57. of each ground whole oats, rice bran
and alfalfa meal. These latter ingredients all contain significant levels of
fiber but are also reasonably good sources of energy and quality protein. It
was of particular interest to determine the influence of these ingredients on
feed intake and to determine if the modest increase in diet fiber might stimulate
overall performance.

Experimental

Forty-two pigs, averaging 72 lb. initially were divided into 6 lots of 7 pigs
ach on the basis of weight, sex and litter. Three lots were fed each of the feed
iixtures as shown in Table 1. All pigs were self-fed in concrete-floored pens
with water furnished by automatic watering devices. The pigs were on test 70 days.

Results and Discussion

Performance data are summarized in Table 2. In replications 1 and 3 pig
performance was almost identical for the two feed mixtures. In replicate 2
the simple mixture of corn and soybean meal elicited somewhat greater feed
intake (5.85 vs. 5.61) and somewhat faster gains (1.85 vs. 1.75). Combined
replicates show a slight advantage for the simple mixture over the complex
mixture in gain and feed conversion.



1/ Data were taken from swine unit Expt. 237.
2/ Wallace and Combs, Animal Nutritionists.



This public document was promulgated at an annual cost of
$ 68.84, 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









-2-


Table 1. Experimental Feed Mixtures


Ingredient
Yellow corn meal
Rice bran
Ground whole oats
Alfalfa meal (20%)
Soybean meal (49%)
Bio-Phos (IMCC)
Limestone
Iodized salt
Vitamin premix (UF)
Trace minerals (CCC)


Simple Mixture
83.70



13.00
1.60
1.00
0.50
0.10
0.10
100.00


Complex Mixture
71.10
5.00
5.00
5.00
11.00
1.20
1.00
0.50
0.10
0.10
100.00


Calculated nutrient content
Protein (7.)
Digestible energy (Kcal/lb.)
Crude fiber (%)
Calcium (%)
Phosphorus (7.)


14.00
1534.00
2.09
0.72
0.65


Table 2. Performance of Growing-Finishing Pigs
Fed a Simplified Feed Mixture Compared
to a More Complex Mixture
I I I I ,


Replication 1
Initial weight, lb.
Final weight, lb.
Daily gain, lb.
Daily feed, lb.
Feed/gain, lb.
Replication 2
Initial weight, lb.
Final weight, lb.
Daily gain, lb.
Daily feed, lb,
Feed/gain, lb.
Replication 3
Initial weight, lb.
Final weight, lb.
Daily gain, lb.
Daily feed, lb.
Feed/gain, lb.
Combined Replications
Initial weight, lb.
Final weight, lb.
Daily gain, lb.
Daily feed, lb.
Feed/eain. lb.


Simple
Mixture

72.1
184.4
1.60
5.09
3.18

72.3
202.0
1.85
5.85
3.16

72.0
185.7
1.62
5.13
3.16

72.1
190.7
1.69
5.36
3.17


14.00
1474.00
3.86
0.74
0.63


Complex
Mixture

72.0
185.6
1.62
5.17
3.19

72.4
194.7
1.75
5.61
3.21

72.3
185.6
1.62
5.16
3.19

72.2
188.6
1.66
5.31
3.20


-- --- --- ~---~







-3-

This test further substantiates the nutritional qualities of the corn-
soybean meal mixture. Under the conditions of this experiment and point in
time it was the more economical formula. Actual prices per ton for the major
ingredients used were $120.00, $152.00, $149.00, $137.00 and $125.00 for corn
meal, soybean meal, ground whole oats, alfalfa meal and rice bran, respectively.
Using these prices and assuming an $8.00 per ton cost to fortify each mixture
the per ton cost was $128.20 for the simple formula and $130.62 for the more
complex formula.


Summary

A feeding trial, involving 42 finishing pigs, was conducted to compare a
simplified corn-soybean meal mixture with a more complex mixture which included
5% of each ground whole oats, alfalfa meal and rice bran. Rate and efficiency
of gain favored slightly the simplified mixture and formulation costs were
$2.42 per ton less for this mixture.







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