Group Title: Mimeo report - North Florida Experiment Station, University of Florida - 55-4
Title: Effect of aureomycin added to rations of swine grazing high quality pastures
CITATION PAGE IMAGE ZOOMABLE PAGE TEXT
Full Citation
STANDARD VIEW MARC VIEW
Permanent Link: http://ufdc.ufl.edu/UF00073288/00001
 Material Information
Title: Effect of aureomycin added to rations of swine grazing high quality pastures
Series Title: NFES mimeo rpt.
Physical Description: 2 leaves : ; 28 cm.
Language: English
Creator: Baker, F. S ( Frank Sloan ), 1921-
North Florida Experiment Station
Publisher: North Florida Experiment Station
Place of Publication: Quincy Fla
Publication Date: 1955
 Subjects
Subject: Swine -- Feeding and feeds -- Florida   ( lcsh )
Antibiotics in animal nutrition   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
Statement of Responsibility: by F.S. Baker, Jr.
General Note: Caption title.
General Note: "March 29, 1955."
Funding: Florida Historical Agriculture and Rural Life
 Record Information
Bibliographic ID: UF00073288
Volume ID: VID00001
Source Institution: Marston Science Library, George A. Smathers Libraries, University of Florida
Holding Location: Florida Agricultural Experiment Station, Florida Cooperative Extension Service, Florida Department of Agriculture and Consumer Services, and the Engineering and Industrial Experiment Station; Institute for Food and Agricultural Services (IFAS), University of Florida
Rights Management: All rights reserved, Board of Trustees of the University of Florida
Resource Identifier: oclc - 82959696

Full Text


iORTH FLORIDA EXPERIi~INT STATION
QUINCY, FLORIDA
iiarch 29, 1955
NFES Mimeo Rpt. 55-4
EFFECT OF AUREOhYCIN ADDSD -.0 RATIONS OF S:tINEi GRAZING HIGE QUALITY PASTURE
by F. S. Baker, Jr.
Assistant Animal Fusbandmen
In recent trials at this Station, adding an aureomycin supplement to a
ration of corn, soybean oil meal, minerals, and high-quality non-legume pasture slightly
increased pig gains in some instances but did not greatly affect ,iins in others.1 Response
to the antibiotic was obtained during the first half of the growing-fattening period
(from weaning to 125 pounds) rather than during the last half (125 pounds to market
weight). This is in agreement with results obtained at the Illinois Station from feed-
ing soybean oil meal rations with and without aureomycin suplementation to pigs on rye
pPsture.2
PROCEDURE
Duroc sows producing the experimental pirs were fed a ration of corn, soybean oil
meal, and minerals on good pasture. Steamed bonemeal was added to the soybean oil meal
at the rate of 7 pounds per 100 pounds of oil meal to insure adequate calcium consumption.
Pigs were weaned and placed on experimental rations at approximately 60 days of age.
Each litter was divided as equally as possible into two groups which were fed the follow-
ing rations:
Lot I Lot II
Corn self-fed Corn self-fed
93 lbs. 41% soybean oil meal) 95)0.5 lb. 93 lbs. 41 soybean oil meal)0.5 lb.
7 Ibs. steamed bonemeal ) )per head 7 Ibs. steamed bonemeal )per head
Aureomycin supplement 5P) daily. ------ )daily.
Mineral mixture self-fed Mineral mixture self-fed
Pasture Pasture
The Pureomycin supplement (Aurofac) contained 1.8 grams of aureomycin hydrochloride
and 1.8 mg. of vitamin B12 activity per pound. Five pounds Aurofac was added to 95
pounds soybean oil meal to which 71 steamed bonemeal had previously been added.
The mineral mixture consisted of two parts ground limestone, two parts steamed
bonemeal, and one part salt. Because of cases of bone fracture which occurred in the
past, steamed bonemeal wrs also included in the protein supplement as previously described.
Oats were grazed during the first of the feeding period, and millet pasture was
used when the oats matured.
RESULTS
Table 1-635 gives the results of the feeding trial. The grout given Pureomycin
supplementation (Lot I) gained slightly faster than those not fed the antibiotic (Lot II).
The latter, however, ate less feed, and made somewhat cheaper gains. Pert of the corn
fed to both groups was "hogged-off" in the field, and the yield was estimated. The
rather high corn consumption may be due to either waste in the field or to an inaccurate
estimate of the yield. It appears that the quantity of corn fed to the pigs in Lot I was
higher than would normally be consumed. The cost of gain of the pigs in Lot I was $2.06
higher per 100 pounds than that of the pies in Lot II.
SUTiiARY
Supplementing a ration of corn, soybean oil meal, minerals, and excellent non-legume
pasture with an aureomycin supplement resulted in a slightly increased rate of gain from
weaning to market weight of 220 pounds. The increase from the antibiotic occurred during
the last as well as the first of the feeding period. Pigs fed the antibiotic ate more feed

ACY 'NOWLEDGEi.IENT
Aurofac for this trial was furnished through the courtesy of Lederle Laboratories,
Pearl River, New York.




SNOV R8 IhA




l3eker, F.S. Jr. Effect of Aureomycin Added to Rations of Swine Grazing High Quality
Pasture. i.imeo. Rpt. 1952, iiimeo. Rpt. 2-635(1953), Mimeo aRt. NFES 54-3 (1954), Mimeo.
Rpt. 54-7 (1954).
2Becker, D.E., C.R. Adams, S. ,. Terrill, and R. J. Meade, 1953. The Influence of Heat
Treatment and Solvent upon Iutritive Value of Soybepn Oil Meal for Swine. Jour. An. Sci.
12:107.







Table 1-635: Pigs Fed Aureomycin Supplement versus Litter Mates Receiving no
Antibiotic.


Lot I
Ear Corn
95~ (Soybean oil meal
(plus 7% bonemeal
5, (Aurofac (Lederle)
Mineral mixture
Pacture


Lot II
Ear Corn
Soybean oil mes-
plus 7o bon.-meal

Mineral mixture
Pasture


A. Fprqw.3n-ir to a.mraximately 1 01 Mounds

Number pigs 26
Average initial weight 41.3
Average initial age (days) 64.1
Average final weight 127.1
Averag-i fira age (days) 129.0
Av er.ge ?ain 85.8
A-.- ;:. daily gain 1.32

2., .Frc:z r ei_.tly 12 voyands to market weight.

iu'r'ber pigs 26
Average initial weight 127.1
Aveorsg initial age (days) 129.0
Average final weight 220.4
Averasg final age (days) 177.4
Avers2a, gain 93.3
Terage idaly gain 1.93



in.ube-r cf nigs 26
Average initial weight 41.3
Aver ge i-itial. age 64.1
Average final weight 220.4
Avcra~o filal age 177.4
Average gain 179.0
Av rae dlays, weaning to market 113.3
Average daily gain 1.58


Shelled ccrn
Protei:i supplement
Mineral as pa re (acres)
Millse & oats pasture (acres)


707.2
56.1
3.81
0.13


Shell e corn
Protein supplem-nt
Mineral mixture
Millet & oats pasture


6.24
0.50
0.034
Free access


5.30
0.50
0.025
Free access


Pounds of Feed ay r 100 pounds eain:
Shelled corn
Protein supplement
Mineral mixture
Millet & cats pasture (acres)

e 'eTd cost per 100 pounds gain


25
41.6
64.9
121.0
128.4
79.4
1.25


25
121.0
123,4
221.6
184.7
100.6
1.79


25
41.6
64.9
221.6
184.7
180.0
119.8
1.50


635.0
59.3
3.00
0.14


394.97
31.33
2.13
0.075

$15.37


352.80
32.96
1.67
0.078

$13.31


haesdi prices used: Shelled corn, $60 ton; soybean oil meal, $90 ton; Aurofac, $0.60
1. Mineral mixture, $100 ton; pasture, $15 acre.




University of Florida Home Page
© 2004 - 2010 University of Florida George A. Smathers Libraries.
All rights reserved.

Acceptable Use, Copyright, and Disclaimer Statement
Last updated October 10, 2010 - - mvs