Pig International - July/August 2017 - 18

18 ❙ PigInternational
METHIONINE BEYOND PROTEIN SYNTHESIS
proved milk quality, resulting in
increased piglet weight gain during the two first weeks of lactation. The highest body weight was
observed with DL-HMTBA; piglets were 700 g heavier compared

to control at 14 days of age.
During the post-weaning period, piglets were fed a control
diet adequate in TSAA and diets
supplemented with either DL-Met
or DL-HMTBA, 25 percent above

Fractional portal balance in pigs
fed different sources of methionine
Source: Fang et al. (2010)

Apparent amino acid digestibility (%)

30
25

D-Met

DL-HMTBA

25
22

27

26

23

22

20
15
10

the NRC recommendation for
TSAA. Piglets in the DL-HMTBA
group were 900 g heavier than the
DL-Met group. Growth retardation and intestinal dysfunction
are commonly seen at weaning
and are more pronounced if carried out early. This is associated
with oxidative stress, on which
DL-HMTBA was shown to have a
positive effect. Interestingly, feeding higher levels of methionine
as DL-HMTBA to both sows and
piglets resulted in relatively higher
plasma glutathione peroxidase.
Greater villus height, villus height/
crypt depth ratio and number of
goblet cells were also observed in
piglets fed with the DL-HMTBA
supplemented diet.

5

Future nutrition

0
0-3h

3-6h

0-6h

The fraction of L-Met extracted by the intestine in its first pass is similar
between DL-HMTBA and DL-Met diets.

The effect of total sulphur amino
acid (TSAA) level on post-weaning
piglet performance
TSAA-

TSAA+

P value

Initial body weight (kg)

9.36

9.26

0.85

Final body weight (kg)

12.3

13

0.24

Feed intake (g/day)

378

381

n/a

Daily weight gain (g/day)

292

375

<0.001

Gain to feed (g/g)

0.78

0.99

<0.01

Source: Conde-Aguilera et al. (2010)

Daily weight gain and gain to feed were significantly reduced
when piglets were fed a diet 30 percent deficient in TSAAs (TSAA-)
compared to one containing the recommended level (TSAA+).

Providing adequate methionine
levels improves the performance
of pigs in all rearing phases. The
bioequivalence of DL-Met and
DL-HMTBA to sustain growth
has been thoroughly demonstrated. However, DL-HMTBA shows
additional benefits, in particular
its highly efficient absorption and
positive effect on portal plasma
flow. The improved digestion of
protein and amino acids results
in better growth and efficiency.
Maternal supplementation of methionine as DL-HMTBA above
requirements has been shown to
benefit early growth of neonatal
piglets. In addition, supplementation above requirements after
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Table of Contents for the Digital Edition of Pig International - July/August 2017

Pig International - July/August 2017
Contents
Pigs and Money
Industry Happenings
World pork production to grow at a slower rate
5 ways phytogenics improve pig feed efficiency
Methionine beyond protein synthesis in growing pigs
Understanding pseudorabies in pigs leads to prevention
6 fiber insights for formulating livestock feed
Salmonella control: Do organic acids solve the problem?
How lactic fermented feed benefits pig production
How to treat iron deficiency in neonatal pigs
Products
Marketplace
Advertisers’ Index
Pig International - July/August 2017 - Pig International - July/August 2017
Pig International - July/August 2017 - Cover2
Pig International - July/August 2017 - Contents
Pig International - July/August 2017 - Pigs and Money
Pig International - July/August 2017 - Industry Happenings
Pig International - July/August 2017 - World pork production to grow at a slower rate
Pig International - July/August 2017 - 5
Pig International - July/August 2017 - 6
Pig International - July/August 2017 - 7
Pig International - July/August 2017 - 8
Pig International - July/August 2017 - 9
Pig International - July/August 2017 - 5 ways phytogenics improve pig feed efficiency
Pig International - July/August 2017 - 11
Pig International - July/August 2017 - 12
Pig International - July/August 2017 - 13
Pig International - July/August 2017 - Methionine beyond protein synthesis in growing pigs
Pig International - July/August 2017 - 15
Pig International - July/August 2017 - 16
Pig International - July/August 2017 - 17
Pig International - July/August 2017 - 18
Pig International - July/August 2017 - 19
Pig International - July/August 2017 - Understanding pseudorabies in pigs leads to prevention
Pig International - July/August 2017 - 21
Pig International - July/August 2017 - 22
Pig International - July/August 2017 - 23
Pig International - July/August 2017 - 6 fiber insights for formulating livestock feed
Pig International - July/August 2017 - 25
Pig International - July/August 2017 - Salmonella control: Do organic acids solve the problem?
Pig International - July/August 2017 - 27
Pig International - July/August 2017 - 28
Pig International - July/August 2017 - 29
Pig International - July/August 2017 - How lactic fermented feed benefits pig production
Pig International - July/August 2017 - 31
Pig International - July/August 2017 - 32
Pig International - July/August 2017 - 33
Pig International - July/August 2017 - How to treat iron deficiency in neonatal pigs
Pig International - July/August 2017 - 35
Pig International - July/August 2017 - 36
Pig International - July/August 2017 - 37
Pig International - July/August 2017 - Products
Pig International - July/August 2017 - 39
Pig International - July/August 2017 - Advertisers’ Index
Pig International - July/August 2017 - Cover3
Pig International - July/August 2017 - Cover4
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