Table 3 Effect of diets on gastrointestinal tract variables and intestinal morphology of piglets.

From: Influence of Chlorella vulgaris on growth, digestibility and gut morphology and microbiota of weaned piglet

 

Diets

SEM

P-value

Control

CH

CH + R

CH + M

Relative length of gastrointestinal tract, m/kg

Small intestine

0.733

0.657

0.656

0.710

0.010

0.0882

Large intestine

0.145

0.139

0.142

0.151

0.003

0.6056

Content viscosity, cP

Duodenum + jejunum

2.64a

3.64b

3.63b

3.70b

0.15

0.0202

Ileum

5.00

5.64

4.73

5.42

0.28

0.6762

pH

Stomach

3.95

4.10

4.07

3.86

0.063

0.4475

Duodenum + jejunum

5.67ab

5.42c

5.57bc

5.73a

0.033

0.0028

Ileum

6.37a

5.93b

5.87b

5.96b

0.069

0.0383

Caecum

5.67

5.71

5.65

5.92

0.055

0.3120

Colon

6.19

6.25

6.19

6.22

0.036

0.9260

Villus height, μm

Duodenum

339a

424b

414b

402b

10.8

0.0160

Jejunum

376

428

399

399

17.7

0.7893

Ileum

327

370

376

321

9.7

0.0978

Villus width, μm

Duodenum

187

175

177

192

2.9

0.1293

Jejunum

152

146

159

163

3.6

0.4021

Ileum

195

182

176

186

3.9

0.3696

Crypt depth, μm

Duodenum

503

469

489

431

11.2

0.1130

Jejunum

345

343

367

349

7.0

0.6332

Ileum

313

299

272

267

7.7

0.0902

Villus height/crypt depth

Duodenum

0.686a

0.911b

0.859b

0.967b

0.03

0.0088

Jejunum

1.10

1.26

1.10

1.14

0.05

0.6784

Ileum

1.07

1.26

1.44

1.24

0.05

0.0775

  1. Control = control diet; CH = Chlorella vulgaris diet; CH + R = C. vulgaris diet supplemented with Rovabio® Excel AP; CH + M = C. vulgaris diet supplemented with a pre-selected enzymatic mixture.
  2. a,b,cValues within a row with different superscripts differ significantly at P < 0.05.