Table 6 The effect of dietary treatment on small intestinal morphology (Least-square means with their standard errors).

From: Organic acid-preserved grain improves growth and gut health in weanling pigs fed zinc oxide free diets

 

Treatment*

SEM

P value

Grain preservation method

Dried

OA-preserved

Dried

OA-preserved

Grain

ZnO

Grain x ZnO

Zinc Oxide supplementation

No

No

Yes

Yes

Duodenum

VH μm

271.3

269.6

260.7

233.4

23.56

0.538

0.335

0.587

CD μm

104.9

112.0

110.1

103.2

7.62

0.986

0.815

0.363

VH:CD

2.7

2.4

2.4

2.4

0.26

0.609

0.545

0.749

Jejunum

VH μm

273.9

187.1

289.0

248.7

22.69

0.006

0.089

0.281

CD μm

106.7

87.0

84.9

108.5

11.60

0.858

0.988

0.070

VH:CD

2.7

2.3

3.7

2.5

0.44

0.078

0.162

0.371

Ileum

VH μm

251.9a

189.3b

236.4a

257.8a

21.18

0.332

0.226

0.057

CD μm

108.8

106.6

90.7

94.7

6.70

0.898

0.036

0.648

VH:CD

2.4

1.8

2.8

2.8

0.30

0.416

0.027

0.280

  1. VH, villus height; CD, crypt depth; VH:CD, villus height to crypt depth ratio.
  2. * a total of seven replicates were used per treatment group.
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