Group Title: Animal Science Department mimeograph report - Florida Agricultural Experiment Station ; AN64-1
Title: The influence of Zymo-Pabst on the performance of young pigs
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 Material Information
Title: The influence of Zymo-Pabst on the performance of young pigs
Series Title: Animal Science Department mimeograph report
Physical Description: 3 p. : ; 28 cm.
Language: English
Creator: Combs, G. E ( George Ernest ), 1927-
Wallace, H. D ( Harold Dean )
Berry, Thomas Hart, 1934-
University of Florida -- Agricultural Experiment Station
Publisher: Florida Agricultural Experiment Station
Place of Publication: Gainesville Fla
Publication Date: 1963
Subject: Piglets -- Feeding and feeds -- Florida   ( lcsh )
Swine -- Growth -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
Statement of Responsibility: G.E. Combs, H.D. Wallace, and T.H. Berry.
General Note: Caption title.
General Note: "July, 1963."
 Record Information
Bibliographic ID: UF00072939
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 77519913

Full Text

'AN /-/

Animal Science Department Florida Agricultural
Mimeograph Report AN64-1 Experiment Station
Gainesville, Florida
July, 1963


G. E. Combs, H. D. Wallace and T. H. Berry I/

The inability of the young pig to utilize certain feedstuffs as
efficiently as others has been demonstrated many times. This inability
has been associated with a deficiency of various digestive enzymes dur-
ing the early weeks of the pigs post natal life. Past attempts to correct
this enzyme insufficiency have in general been unsuccessful.

However, the differences in cost between such feedstuffs as soybean
meal and dried skim milk are such to warrant continued efforts to find
methods which would permit more efficient utilization of these less
costly ingredients. The following study was designed to investigate
the effects of adding Zymo-Pabst, a mixture of digestive enzymes, to
pig starter rations.


Two trials were conducted with pigs weaned at 2 weeks of age. In
both trials the pigs were self fed in concrete floor pens and water was
provided by automatic waterers. The composition of the basal ration is
presented in table I.

Trial I Sixty pigs were allotted on the basis of litter and
outcome group to 3 treatment groups of 20 pigs each. Treatment group
I was given access to two feed mixtures, the basal ration and the basal
ration supplemented with Zymo-Pabst; treatment group 2 was given access
to the basal ration only and treatment group 3 was given access to the
basaJ ration sQ0plemented wltt: Zymo-Pabst only. FoOr feeders
were used with the group receiving both the basal and enzyme supple-
mented rations whereas when either the basal or enzyme supplemented
ration was offered only 2 feeders were used.

1/ Combs, Wallace and Berry, Associate Animal Nutritionist, Animal
Nutritionist, and Research Assistant, respectively, Department
of Animal Science. The assistance of W. E. Collins and L. S.
Taylor, Swine Herdsmen is gratefully acknowledged.

The product Zymo-Pabst contained a mixture of proteases, amy-
lases and gumases and was supplied by the Pabst Brewing Co.


In both instances the feeders were rotated twice weekly to aid in con-
trolling feeder position preference.

Trial 2 Thirty-seven unthrifty pigs were used primarily to study
their preference for the basal or basal plus enzyme rations used in
trial I. The pigs were divided into groups of 19 and 18 pigs each and
were given access to feeders containing either the basal or basal plus
Zymo-Pabst rations. Only feed consumption data was recorded.

Results and Discussion

The average performance data for trial I are summarized in table
2. The pigs that were offered both the supplemented and unsupplemented
rations gained significantly faster than those pigs that received only
the enzyme supplemented ration. The pigs receiving the basal ration
gained at a rate similar to that of both the other two treatment groups.
The increased daily feed intake of those pigs given access to both rations
undoubtedly accounts for the increased rate of gain. The consumption of
the basal ration by this group was approximately 0.2 of a pound per
day more than the enzyme containing ration; however, in view of the
performance of pigs fed only the basal ration it appears probable that
total feed consumption rather than consumption of either of the indi-
vidual rations accounts for this significantly increased rate of gain.

The comparatively slow rate of gain and small daily feed intake
of the group receiving only the Zymo-Pabst ration indicate that a del-
eterious rather than beneficial effect was produced when this digestive
enzyme.mixture was added to the basal raflon.

The daily feed consumption of 37 pigs (trial 2) given access to
both the basal and Zymo-Pabst supplemented rations were 0.58 and 0.32
pounds, respectively. These figures tend to confirm the results
obtained in trial 1.


The results obtained from feeding 97 pigs weaned at 2 weeks of
age rations with and without Zymo-Pabst show that they markedly pre-
ferred the ration without the added enzyme mixture. This would indi-
cate that with pig starter rations of similar formulation Zymo-Pabst
has limited value when added at the rate of 5 pounds per ton of feed.

Table I. Composition of Basal Ration8


Ground yellow corn
Soybean meal
Bonemea I
Trace minerals
Vitamin supplement I/
Vitamin BI2 supplement 2/
Aurofac 10
Vitamin A and D premix 3/


a/ Zymo-Pabst added at
per ton of feed.

the expense of corn on the rate of 5 pounds

/ Contained the following per pound: riboflavin, 2000 mg.; panto-
thenic acid, 4000 mg.; niacin, 9000 mg. and choline chloride,
10,000 mg.

2/ Contained 12 mg. vitamin 812 per pound.

3/ Contained 10 gm. vitamin A (10,000 l.U./gm.), 1.10 gm. vitamin
02 (9000 l.U./gm.) and 896.9 gm. corn.

Table 2. Response of Young Pigs to Rations
Contain ng Zymo-Pabst

Ration Offered Basal and Basal Zymo-Pabst

No. pigs 20 20 20
Av init. weight, lb. 8.1 8.1 8.1
Av. final weight, lb. 26.8 24.5 22.9
Av. daily gain, Ib. .44a/ .39 .35
Av. daily feed, Ib. l.I1/ .99 .85
Feed per lb. gain 2.57 2.54 2.43
Days on test 38 38 38

a/ Pigs receiving both the
significantly faster (P
Zymo-Pabst ration.

basal and Zymo-Pabst rations gained
<.05) than those receiving only the

b/ Pigs in this group consumed 0.68 lb. basal and 0.45 Ib. of the
Zymo-Pabst ration daily.

1000 copies



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