• TABLE OF CONTENTS
HIDE
 Procedure
 Results and discussion
 Summary














Group Title: Department of Animal Science mimeograph series - University of Florida Department of Animal Science ; AN69-7
Title: Spectinomycin as a feed additive for pigs
CITATION PAGE IMAGE ZOOMABLE
Full Citation
STANDARD VIEW MARC VIEW
Permanent Link: http://ufdc.ufl.edu/UF00073009/00001
 Material Information
Title: Spectinomycin as a feed additive for pigs
Series Title: Department of Animal Science mimeograph series
Physical Description: 4 p. : ; 28 cm.
Language: English
Creator: Wallace, H. D ( Harold Dean )
Simmons, T. E
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: 1969
 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: H.D. Wallace, T.E. Simmons and G.E. Combs.
General Note: Caption title.
General Note: "March, 1969."
 Record Information
Bibliographic ID: UF00073009
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 78912781

Table of Contents
    Procedure
        Page 1
    Results and discussion
        Page 2
        Page 3
    Summary
        Page 4
Full Text
/00

Ao. i 6 5-9
Department of Animal Science Florida Agricultural
Mimeograph Series No. AN69-7 Experiment Station
March, 1969 Gainesville, Florida

SPECTINOMYCIN AS A FEED
ADDITIVE FOR PIGS 1/

H. D. Wallace, T. E. Simmons and G. E. Combs 2/


This experiment was undertaken to evaluate the influence of the antibiotic,
spectinomycin on the performance of growing-finishing pigs. Measurement criteria
included rate of gain and feed conversion... .

Procedure
Seventy-two pigs of mixed breeding were allotted to 24 concrete pens with
three pigs to each pen. Allottment was according..fo litter, sex and weight with
eight pens assigned to each of the following dietary treatments. When the pigs

1 Basal
2 Basal + 10 gm. spectinomycin per ton of feed
3 Basal + 20 gm. spectinomycin per ton of.feed

reached an average weight of approximately 100 lb. all pigs were moved to larger
pens and six pigs were placed in each pen. Thus from this point on there were
four pens of six pigs each on each of the dietary treatments. All pigs remained
on the original dietary assignments. Originally each pen contained 2 gilts and
1 barrow. During the finishing period, after pens were combined, r bh pen con-
tained 4 gilts and 2 barrows. "

The-basal diet is shown in Table 1.

Table 1. Basal Diet 4
Ground yellow corn 77
Soybean oilmeal (50%) 17. -'.
Deflourinated phosphate 1.8
Ground limestone 0.50 '
Iodized salt.a 0.50 O/
Trace mineral mixture a 0.10 0
B vitamin premix b 0.10
Vitamin B12 premix c 0.05
Vitamin A & D premix d 2.00
100.00
a/ Contained 11% calcium, 10% manganese, 10% iron, 10% zinc,
1% copper, 0.3% iodine and 0.1% cobalt.
b/ Contained 8,000, 14,720, 36,000 and 40,000 mg. per lb.,
respectively of riboflavin, pantothenic acid, niacin and
choline chloride.
c/ Contained 20 mg. B12 per lb.
d/ Contained 4.6 gm. Vitamin A supplement (30,000 I.U.'s/gm.),
0.25 gm. Vitamin D supplement (200,000 I.U.'s/gm.) and 449
gm. yellow corn per lb.

1/ Supported in part by a grant-in-aid from Abbott Laboratories, North
Chicago, Illinois.
2/ Wallace, Animal Nutritionist; Simmons, Graduate Assistant and Combs,
Animal Nutritionist, Department of Animal Science.








- 2-


Results and Discussion


Performance by pens through the first 28 days is summarized in Table 2.
Control pigs gained an average of 1.23 lb. per day and required 2.25 lb. feed
per lb. gain. Pigs on treatment 2 (10.gm. speqtinomycin per ton) gained 1.28 lb.
per day and required 2.22 lb. feed per lb. gain. Pigs on treatment 3 (20 gm.
spectinomycin per ton) gained 1.30 lb. per day and required 2.17 lb. feed per lb.
gain. It appeared that both levels of antibiotic may have induced a small im-
provement in rate of gain with little effect on feed conversion through the first
28 days.


Table 2. Influence of spectinomycin on gains and feed
first 28 days of experiment. .


Pen No.

1 :-
2
3
.4

6
7
8


Average


9
10
11
12
13
14
.: 15
: 16
Average.


Daily
Gain
Lb.

1.25
1.40
1.24
1.16
1.22
1.22
1.14
1.17
1.23

1.31
S 1.53
1.30
1.26
1.08
1.44
1.14
1.17
1.28

1.39
1.32
1.34
1.49
1.18
1.27
1.20
1.22
1.30


Average


conversion during


'Feed
Per Lb. Gain
SLb.

2.21
2.29
2.16
2.36
2.20
2.20
2.37
2.22
2.25


2.11
2.25
2.23
2.40
2.15
2.26
2.02
2.37
2.22

2.17
2.24
2.15
2.15
2.06
2.33
2.17
2.07
2.17


A summary for the overall experiment covering the
period is presented in Table 3.


entire 112 day feeding


Treatment


- -------C---


















Table 3. Influence of spectinomycin on feedlot performance of growing-finishing
swine (entire experiment) L/


Treatment

Lot No. !

No. pigs

Av. initial wt. lb.

Av. final vt. lb.

Av. daily feed in-
take, lb.

Av. daily gain, lb.

Feed/lb. gain Lb.


CONTROL


1

6

28.3

192.0


4.53

1.46

3.10


2

6

27.4

199.7


4.83

1.53

3.15


3

6

27.8

193.3


4.80

1.48

3.25


4

6

26.2

195.5


4.80

1.51

3.18


10 gmf. Spectinomycin/


5

6

29.4

190.8


4.46

1.44

3.09


6 6

27.7- 27'4'

195.2 196.0


4.61

.1,50

3.08


4.58

1.51

3.04


ton

8

6

25.5

190.0


4.60

1.47

3.14


20 gm. Spectinomycin/ton

9 10 11 12

6 6. 6 6

29.7 28.0 27.7, 24.5

204.5 207.8 198.8 196.0


4.86

1.56

3.12


4.88

1.61

3.04


4.81

1.53

3.14


4.77

1.53

3.11


1/ Duration of
2/ Lot numbers


experiment 112
during finishing


days
phase of


experiment


__


-^


--






-4-


Averages for rate of gain and feed conversion for the three treatment groups were
as follows. Pigs on the 20 gm. level ofispectinomycin made the best gains, how-

Daily gain, lb. Feed/Gain, lb.

1 Basal 1.50 3.19
2 Basal + 10 gm. spectinomycin 1.48 3.09
3 Basal + 20 gm. spectinomycin 1.56 3.10

ever none of the differences between lots were statistically significant (P < .05
Both treated groups were more efficient than the basal pigs but differences were
small.

Summary

A feeding experiment, involving a total of seventy-two growing-finishing
pigs, was conducted to evaluate spectinomycin as a feed additive. Two levels of
the antibiotic, 10 and 20 gm. per ton of feed, were studied. The pigs weighed
an average of about 27 lb. initially and were on test for 112 days.

During the early phase of the experiment both levels of spectinomycin
appeared to improve gain and feed conversion some. When the experiment was
terminated overall average daily gains were best for pigs which received the 20
gm. level of antibiotic. However, differences between treatments were not states
ticaliy significant. Further testing under varied conditions is necessary to
properly evaluate this antibiotic.




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