Pig International - November 2012 - 19

| 19
Value for pig producers 

TABLE 1: Sow and piglet production performance
Control

FA2300S

Herd

A

B

A&B

A

B

No. of sows

48

40

88

49

38

87

39.1a

38.8

39.0

38.9b

38.8

38.9

Farrowing

22.0

17.7a

19.9a

22.7

19.6b

21.1b

Weaning

17.2

16.3a

16.8a

18.4

18.0b

18.2b

Sow rectal temperature, ˚C

A&B

Back fat depth, mm

Sow weight, kg
Farrowing

268

Weaning

223

Sow feed intake, kg 1)
lactation (6 days prior to f. -w.)

115

264
221

150a

121

115

165b

121

Litter size, number/litter
at birth (alive)

10.4

13.9

12.1

10.5

14.1

12.3

at weaning

8.7

11.5

10.1

9.1

11.9

10.5

1.51

1.48

1.50

1.45

1.49

1.47

5.4

6.4a

5.9a

5.4

7.0b

6.2b

15.6

19.8

17.7

15.1

20.4

17.7

47

73a

60a

49

84b

66b

185

175a

180a

188

198b

193b

at birth (alive)

0.30

0.25

0.27

0.28

0.26

0.27

at weaning

1.06

0.76a

0.91a

1.00

0.41b

0.70b

Average weight, kg/piglet
at birth (alive)
at weaning
Average litter weight, kg/litter
at birth (alive)
at weaning
Daily weight gain of piglets, g
birth - weaning
Within litter st.dev. for piglet weight

Different letters on means indicate P value <0.05.

The production facilities and other conditions differed between the herds and so
did the production performance. Sows in both herds responded more or less on the
dietary addition of dry semi-coated acidifier.
with four sows in the FA group and
the average temperature differed
significantly between groups in this
herd. Herd B had no sows with rectal
temperature passing 39.5 degrees C.
Sub-clinical disease may, however,
affect the weight gain of litters, even
when sow rectal temperature does
not exceed 39.5˚C. The litter size
at birth was not affected, but there
was a tendency for more piglets per
litter in the FA group at weaning in
both herds. The FA treatment did not
affect birth weight in either herd, but
the weaning weight and the weight
gain of the piglets were significantly
improved in Herd B. Improved litter
size in the FA treatment for both herds
combined with higher weight gains of

November/December 2012 | www.WATTAgNet.com

The results from this sow feeding
experiment demonstrate the potential
of using the acidifier to decrease
the risk of lactation failure and
increase sow feed intake and milk
yield. Additionally, acidifier increased
energy use which also have been
demonstrated for conventional mixtures
of organic acids. In an earlier study in
Thailand, the product was compared
with a medicated control diet and
still similar results were found.

the FA piglets in Herd B gave overall
significantly heavier litters at weaning.
The within-litter standard
deviation for piglet´s weight, as a
measure of variation in weight, did
not differ between control and FA
treatment at birth, but differed highly
significantly in Herd B at weaning. 
The health status and cause of
death was closely monitored in Herd
A. The numbers of piglets dead due
to weakness, runt syndrome and
diarrhea were in majority in the
control group as shown in Figure 1.
In the control group, 71 percent of
piglets once medicated for diarrhea
were repeatedly treated, compared
with none of the piglets in the FA group
needing medication for a second time.

❱❱ This trial indicated
that including acidifier
in a sow´s feed helps to
improve feed efficiency
and body condition. ❰❰
In practical pig production,
lactation failure (PDS, MMA, agalactia,
hypoagalactia) is a costly disease.
The clinical sickness is identified
and treated medically to a high cost,
but the question is if the subclinical
form of the disease is not as costly.
It has been experimentally proven
that there is a significant correlation
between the first day post-partum
rectal temperature in clinically
healthy sows never exceeding 39.5
degrees C at farrowing and piglet
mortality and homogeneity of the
litter in the first week of life.
This trial indicated that including
acidifier in a sow´s feed helps to
improve feed efficiency and body
condition. It also enhanced sow feed
intake during lactation and led to heavier
piglets at weaning, as well as less
diarrhea during the suckling period and
less variation in weight at weaning. PIGI

Leif Göransson is a pig nutritionist in the department of animal nutrition at the Swedish University
of Agr. Science and is also a part-time consultant.


http://www.piginternational-digital.com/piginternational/20121112_1//TrackLink.action?pageName=19&exitLink=http%3A%2F%2Fwww.WATTAgNet.com

Table of Contents for the Digital Edition of Pig International - November 2012

Contents
Pig International - November 2012 - Cover1
Pig International - November 2012 - Cover2
Pig International - November 2012 - Contents
Pig International - November 2012 - 2
Pig International - November 2012 - 3
Pig International - November 2012 - 4
Pig International - November 2012 - 5
Pig International - November 2012 - 6
Pig International - November 2012 - 7
Pig International - November 2012 - 8
Pig International - November 2012 - 9
Pig International - November 2012 - 10
Pig International - November 2012 - 11
Pig International - November 2012 - 12
Pig International - November 2012 - 13
Pig International - November 2012 - 14
Pig International - November 2012 - 15
Pig International - November 2012 - 16
Pig International - November 2012 - 17
Pig International - November 2012 - 18
Pig International - November 2012 - 19
Pig International - November 2012 - 20
Pig International - November 2012 - 21
Pig International - November 2012 - 22
Pig International - November 2012 - 23
Pig International - November 2012 - 24
Pig International - November 2012 - 25
Pig International - November 2012 - 26
Pig International - November 2012 - 27
Pig International - November 2012 - 28
Pig International - November 2012 - Cover3
Pig International - November 2012 - Cover4
http://www.piginternational-digital.com/201711
http://www.piginternational-digital.com/201710
http://www.piginternational-digital.com/201709
http://www.piginternational-digital.com/201707
http://www.piginternational-digital.com/201705
http://www.piginternational-digital.com/201703
http://www.piginternational-digital.com/201701
http://www.piginternational-digital.com/201611
http://www.piginternational-digital.com/201610
http://www.nxtbook.com/nxtbooks/watt/pigi_201609
http://www.piginternational-digital.com/201607
http://www.piginternational-digital.com/201605
http://www.piginternational-digital.com/201603
http://www.piginternational-digital.com/201601
http://www.piginternational-digital.com/201511
http://www.piginternational-digital.com/201510
http://www.nxtbook.com/nxtbooks/watt/pigi_201509
http://www.piginternational-digital.com/201507
http://www.piginternational-digital.com/201505
http://www.piginternational-digital.com/201503
http://www.piginternational-digital.com/201501
http://www.piginternational-digital.com/201411
http://www.piginternational-digital.com/201410
http://www.piginternational-digital.com/201409
http://www.piginternational-digital.com/201407
http://www.piginternational-digital.com/201405
http://www.piginternational-digital.com/201403
http://www.piginternational-digital.com/201401
http://www.nxtbook.com/nxtbooks/watt/pigi_201311
http://www.piginternational-digital.com/201310
http://www.piginternational-digital.com/201309
http://www.piginternational-digital.com/201307
http://www.piginternational-digital.com/201305
http://www.piginternational-digital.com/201303
http://www.piginternational-digital.com/201301
http://www.piginternational-digital.com/201211
http://www.piginternational-digital.com/201210
http://www.piginternational-digital.com/201209
http://www.piginternational-digital.com/201207
http://www.piginternational-digital.com/201205
http://www.piginternational-digital.com/201203
http://www.piginternational-digital.com/201201
http://www.nxtbookMEDIA.com