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 Experimental
 Results and summary






Group Title: Animal husbandry and nutrition mimeograph series - University of Florida Animal Husbandry and Nutrition Dept. ; no. 60-15
Title: Observations on new antibiotics for swine
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Permanent Link: http://ufdc.ufl.edu/UF00072899/00001
 Material Information
Title: Observations on new antibiotics for swine
Alternate Title: Aspartocin in starter and grower rations
Spiramycin for growing-finishing swine
Physical Description: 4 p. : ; 28 cm.
Language: English
Creator: Combs, G. E. ( George Ernest ), 1927-
University of Florida -- Agricultural Experiment Station
Publisher: Florida Agricultural Experiment Station
Place of Publication: Gainesville, Fla.
Publication Date: 1960
 Subjects
Subject: Antibiotics in animal nutrition -- Research -- Florida   ( lcsh )
Swine -- Feeding and feeds -- Florida   ( lcsh )
Swine -- Growth -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
General Note: Caption title.
General Note: "February, 1960."
General Note: "This study was supported in part by funds and materials from American Cyanamid Co., Pearl River, New York and Rhodia, Inc., New York, N.Y."
Funding: Animal husbandry and nutrition mimeograph series - University of Florida Animal Husbandry and Nutrition Dept. ; no. 60-15
Statement of Responsibility: by G.E. Combs ... et al..
 Record Information
Bibliographic ID: UF00072899
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 77059447

Table of Contents
    Experimental
        Page 1
    Results and summary
        Page 2
        Page 3
        Page 4
Full Text



Animal Husbandry and Nutrition F. -Florida'Agricultural
Mimeograph Series No. 60-15 Experiment Station
Gainesville, Florida
February 1960


Observations On New Antibiotics for Swine I/
,. Aspartocin in Starter.and Grower:Rations
11. Spiramycin for Growing-Fin'ishing Swine

By

G. E. Combs, J. M. Vandepopuliere H. D. Wallace
and R. B, Christmas /



Approximately ten years ago antibbitids were found to have a stimulating
effect on both the rate and efficiency of swine gains. Since this finding
many new antibiotics have become available. In order to.provide swine.
producers with the most effective and the most economical antibiotics the
ones showing the most potential must be studied.

The present study was undertaken to evaluate the possible growth-
promoting properties of two new antibiotics, Aspartocin and Spiramycin for
swine.

Experimental

Experiment -. Forty pigs weaned at approximately two weeks.of age.
were allotted on the basis'of ago, breed and weight to four ration treatments.
The pigs were housed in sheltered concrete-floored pens and feed and-water
were supplied ad lbitum.

Ration treatments were as follows:

1. Basal ration

2. Basal ration plus 10 gm. Aspartocin/ton of ration

3. Basal ration plus 20 gm. Aspartocin/ton of ration

4. Basal ration plus 40 gm. Aspartocin/ton of ration



J/ This study was supported in part by funds and materials r
Cyanamid Co., Pearl River, Now York and Rhodia, Inc., e York N.

2/ Combs, Vandepopuliere, Wallace and Christmas, Assista frofesgor,
Research Assistant, Associate Professor and Research stant respect '
Department of Animal Husbandry and Nutrition. The ass a nce at jf
W. E. Collins and L. S. Taylor, Swine Herdsmen is grate 4 A& -ied.









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Experiment It Forty weanling pigs were randomly allotted from out-
come groups to four replicated pens of five pigs each. The treatment
groups'were self-fed and confined on concrete throughout the trial.

Ration treatments were as follows:

1. Basal ration

2. Basal ration plus 10 gm. Spiramycin/ton of ration

3. Basal ration plus 20 gm. Spiramycin/ton of ration

4. Basal ration plus 40 gm. Spiramycin/ton of ration

The composition of the basal rations used in both experiments is
presented in Table I.

Results and Summary

A summary of the results is presented in Table 2 and Table 3.
It is evident that neither the 10, 20 nor 40 gram level of Aspartocin was
effective in stimulating either rate or efficiency of gain; periodic
instances of scouring in both the basal and the treated groups indicate
that Aspartocin exerted little, if any, beneficial influence on this
condition.

These findings indicated that Aspartocin had limited value in starter
and grower rations for pigs weaned at two weeks of age.

Spiramycin proved effective in stimulating daily gains at all levels
studied. The percent increase over the basal-fed group was approximately
5, 6 and 9% respectively for the 10, 20 and'40 gram levels. Feed
efficiency was only slightly influenced by the use of Spiramycin.

These data Indicated that the antibiotic Spiramycin was an effective
growth promotant for growing-finishing swine.






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Comnogition of Ranal Rationn


Ingredient

Ground yellow corn

Cane Sugar

Dried skimmilk

Soybean meal

Tankage

Lard

Salt

Steamed bone meal

Ground limestone

Trace minerals

Vitamin premix

Totals


Experiment t I/

Starter Grower

22.15 77.40

22.25

40.00

9.00 1.5.00

.--- 4.00

3.00

.50 ..50

1.00 I.00


.10

2.00a

100.00


.10

2.00a

100.00


Experiment IIY/


78.30





S 19.00





.50

1.00

1.00

.05

.15

100.00


I/ Starter fed for first four weeks of experiment and growerfor the
last two weeks.

2/ When the pigs averaged 125 Ibs. this ration was modified by increasing
the corn to 84.3 Ibs. and decreasing the soybean to 13.0 Ibs. .

3/ Supplied the following in the ration (ppm); Mn. (30) Fe. (36), Cu.(2,5)
Co. (.83) Zn.(42) and K (3.9) when added'at the .05 level.

a Supplied the following vitamins per pound of ration: vltamin'A, 2000
I.U.; vitamin D, 400 I.U.; niacin, 20 mg., riboflavin, 3,mg.; pantothenic
acid, 10 mg.; choline, 500 mg.; thiamine, 3 mg.; pyridoxine, I mg. and
vitamin B12, 20 mcg,

b Consisted of .10 Ib. of a mixture that contained 2,000 mg. riboflavin,.
4000 mg. pantothenic acid, 900 mg. niacin and 10,000 mg. choline
chloride per lb. plus .05 Ib. of a B12 supplement containing 9 mg.
B12 per lb.


Table I


~
- ---





I






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Table 2.
'


Influence of Aspartocin On Rate
and Efficiency of Gain with Young Pigs-1


Aspartocin. -m./ton 0


Number of pigs

Av, Initial wt., Ibs.

Av. final wt. lbs,

Av. daily gain, lbs,

Av. dal'y feed, Ibs.

Lb. feed/lb. gain, Ibs.

Days bo'.test.


10.

8.1

30.4

.53

1.05

.1,99

* 42


10

10

8,0

28,3

.48

1.02

2.12-

42


20

10

8.1

28.1

.48

0.95

1.99

42


40

10

8.1

30.3

.53

1.05

1.99

42


1/ Aspartocin added as crude Aspartocin that contained 27 gm. of
antibiotic activity per.kilogram of crude material.




Table 3. Performance of Growing Finishing Swine
., F'd Various Levels ofSpiramycin

Soiramycin, gm./ton 0 10 20 40

Number of pigs 10 10 10 10

Av. initial wt., lbs. 53.0 53.3 53.1 52.8

Av. final wt,, .bs. 169.7 176.1 178.0. 180.2

Av, daily gain,.lbs. 1.52 1.60 1.62 1.66

Av. daily feed, Ibs. 5.05 5.36 5.31 5.36

Lb. feed/Ib. gain, Ibs.. 3.34 3.6 3.28 3.24


Animal Husbandry Dept.
2/5/60 amc
1000 copies


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