Group Title: Department of Animal Science mimeograph series - University of Florida Agricultural Experiment Station ; 62-10
Title: Feed additives for growing-finishing swine
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Permanent Link: http://ufdc.ufl.edu/UF00072922/00001
 Material Information
Title: Feed additives for growing-finishing swine
Series Title: Department of Animal Science mimeograph series
Physical Description: 4 p. : ; 28 cm.
Language: English
Creator: Wallace, H. D ( Harold Dean )
Combs, G. E ( George Ernest ), 1927-
University of Florida -- Agricultural Experiment Station
Publisher: Florida Agricultural Experiment Station
Place of Publication: Gainesville Fla
Publication Date: 1962
 Subjects
Subject: Swine -- Feeding and feeds -- Florida   ( lcsh )
Antibiotics in animal nutrition -- 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: "March, 1962."
 Record Information
Bibliographic ID: UF00072922
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 77132878

Full Text
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Department of Animal Science Florida Agricultural
Mimeograph Series No. 62-10 Experiment Station
March, 1962 Gainesville, Florida

FEED ADDITIVES FOR GROWING-FINISHING SWINE /

H. D. Wallace and G. E. Combs 21


Results of previous experiments involving feed additives for
growing-finishing swine have been reported in Florida Animal Science
Mimeo. Series 59-2, 60-1, 60-15, 60-16, 61-10 and 61-11. It is the
purpose of this report to summarize three recent experiments which were
concerned with the growth stimulating properties of sodium acrylate
and the antibiotics aureomycin, tylosin and oleandomycin.

Experimental

Three experiments were conducted using weanling pigs of mixed
breeding. The pigs were self fed in concrete confinement in all
experiments.

Experiment I Forty pigs were divided on the basis of litter,
sex and weight into eight pens of five pigs each. Two pens of pigs
were fed on each of the following ration treatments:

S- Basal ration

2 Basal ration + 1000 gm. sodium acrylate per ton of feed

3 Basal ration + 50 gm. aureomycin per ton of feed

4 Basal ration + 1000 gm. sodium acrylate + 50 gm. aureomycin
per ton of feed

The aureomycin level in treatments 3 and 4 was reduced to 20 gm. per
ton of feed when the pigs reached an average weight of 125 lb.

Experiment 2 -- This experiment was conducted in a manner similar
to Experiment I except only four pigs were fed in each pen.

Experiment 3 -- Fifty pigs were divided on the basis of litter,
sex and weight into ten pens of five pigs each. Two pens of pigs were
fed on each of the following treatments:
---------------- .- ..^ ^,

I- Supported in part by funds and supplies from American Cya~amid Co.,
Eli Lilly and Co. and Charles Pfizer and Co. I
2/ --
-Wallace and Combs, Animal Nutritionist and Assistant Animr~bl u'titionist p
respectively, Florida Agricultural Experiment Station. The'assistance i',
of W. E. Collins and L. S. Taylor, Swine Herdsmen, is grateful'ly .
acknowledged.








Feeding Period

To market weight


2 Basal + 20 gm. tylosin per to'n
of feed
Basal + 10 gm. tylosin per ton
of feed

3 Basal + 20 gm. aureomycin per ton
of feed
Basal .+ 10 gm. aureomycin per ton
of feed

4 Basal.+ 20 gm. oleandomycin per ton
of feed
Basal + 10 gm. oleandomycin per ton
of feed

5 Basal + 500 gm. sodium acrylate per
ton of feed

The composition of the basal:ration use
presented in Table I.


To 100 Ib. body weight

To market weight


To 100 lb. body weight

To market weight


To 100 lb. body weight

To market weight


To market weight


d-in all experiments is


Table I. COMPOSITION OF BASAL RATION

Ground yellow corn 78.30
Soybean meal (501 protein) 19.00
Ground limestone 1.00
Steamed bonemeal 1.00
Iodized salt 0.50
Trace minerals/ 0.05
Pfizer vitamin supplement No, 12/ 0.10
Pfizer B12 supplement 3/ 0.05

-'/ Adds the following to ration (p.p.m.): manganese (29.6), iron
(36.5), copper (2.5), cobalt (.83), zinc (42.0) and potassium (3.9).

/ Contains 2000 mg. riboflavin, 4000 mg. pantothenic acid, 9000 mg.
niacin and 10,000 mg. choline chloride per pound of supplement.

/ Contains a minimum of 9 mg. vitamin B12 per pound of supplement.

Results and Discussion

The performance of the replicated pens in each of the experiments
was quite similar. For this reason replicated pens were combined for
presentation in the performance tables. Results of the experiments
are summarized in Tables 2 and 3. In experiment I sodium acrylate and
aureomycin appeared to stimulate gains some when added separately to
the ration. However when added in combination, the performance was
similar to the basal group. No improvements in feed conversion were


Ration


-2-


I Basal






-3-


Table 2. PERFORMANCE OF PIGS FED RATIONS CONTAINING
SODIUM ACRYLATE, AUREOMYCIN AND A COMBINATION OF SODIUM
ACRYLATE AND AUREOMYCIN


Treatment Basal Sodium Aureomycin Sodium
Acrylate Acrylate and
Aureorycin

(Experiment I)
No. pigs 10 10 10 10
Initial wt., Ib. 40.7 40.8 40.2 40.4
Final wt., Ib. 186.9 194.5 197.3 187.4
Daily gain, lb. 1.62 1.69 1.73 1.62
Daily feed, Ib. 5.27 5.60 5.71 5.34
Feed/Gain, Ib. 3.28 3.31 3.30 3.30
Days on test 91 91 91 91


(Experiment 2)
No. pigs 8 8 8 8
Initial wt., Ib. 62.7 62.4 61.9 62.1
Final wt., lb. 181.7 171.1 182.9 184.3
Daily gain, Ib. 1.75 1.60 1.78 1.80
Daily feed, Ib. 5.87 5.58 5.85 6.16
Feed/Gain, lb. 3.36 3.49 3.28 3.42
Days on test 68 68 68 68

(Experiments I and 2 Combined)
No. pigs 18 18 18 18
Initial wt., lb. 50.5 50.4 49.8 50.0
Final wt., Ib. 184.6 184.1 190.9 186.0
Daily gain, Ib. 1.68 1.65 1.75 1.70
Daily feed, lb. 5.54 5.59 5.77 5.70
Feed/Gain, lb. 3.32 3.39 3.29 3.35
Days on test 81 81 81 81


apparent from any of the treatments in this experiment.

In experiment 2 the results were somewhat different. Sodium acrylate
added by itself seemed to depress performance while the combination of
sodium acrylate and aureomycin produced the greatest response in gain.

The combined data for experiments I and 2 are presented at the bottom
of Table 2. The differences in gains were not statistically significant
but favored the treatments which included aureomycin. The overall effect
of sodium acrylate supplementation was slightly negative for both gains
and feed conversion.

The results of experiment 3, summarized in Table 3, again indicate
no improvement in performance due to sodium acrylate supplementation. In
this case the level was 500 gm. per ton instead of 1000 as was fed in the








-4-


Table 3. PERFORMANCE OF PIGS FED RATIONS CONTAINING TYLOSIN,
AURECMYCIN, OLEANDOMYCIN AND SODIUM ACRYLATE (EXPERIMENT 3)


Treatment Basal Tylosin Aureomycin Oleandomycin Sodium
Acrylate

No. pigs 10 10 10 10 10
Initial wt., Ib. 48.1 48.0 47.6 48.3 48.0
Final wt., Ib. 204.7 209.8 202.3 221.2 203.9
Daily gain, lb. 1.59 1.65 1.58 1.77* 1.59
Daily feed, lb. 5.23 5.19 5.43 5.36 5.08
Feed/Gain, lb. 3.28 3.14 3.44 3.05 3.20
Days on test 98 98 98 98 98

*Significantly different from basal (P .025)

first two experiments. Tylosin stimulated gains slightly and improved
feed conversion. Aureomycin did not improve performance in this experi-
ment. Oleandomycin stimulated gains significantly (P4.025) and improved
feed conversion markedly.

Summary

One hundred and twenty-two weanling pigs were self fed in concrete
confinement, a typical well fortified corn-soybean meal ration, to
study the supplementary effects of certain feed additives. Three
experiments were conducted. The first two compared the supplementary
effects of sodium acrylate and aureomycin separately and in combination.
The third test compared tylosin, aureomycin, oleandomycin and sodium
acrylate.

Sodium acrylate did not significantly affect performance when
added to the ration at levels of 1000 or 500 gm. per ton of feed.

Aureomycin improved performance slightly but not significantly in
the first two trials. This antibiotic was without effect in the third
trial.

Tylosin improved performance but the improvement was not statistically
significant.

Oleandomycin producedla significant improvement in gains (Pc .025)
and a marked improvement in feed conversion.




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