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Table 3 Effect of four successive weeks supplementation of Lactulose (Vetelact) on egg weight (g, mean ± SE) in layer chickens

From: Use of lactulose as a prebiotic in laying hens: its effect on growth, egg production, egg quality, blood biochemistry, digestive enzymes, gene expression and intestinal morphology

Egg weight (g)

Treatment groups

P value

Group 1 (control)

Group 2 (vetelact 0.05 ml/kg)

Group 3 (vetelact 0.1 ml/kg)

Group 4 (vetelact 0.15 ml/kg)

Week 1

57.90 ± 0.78 b

60.77 ± 0.88 a

60.11 ± 0.74 b

60.63 ± 0.75 a

0.043

Week 2

59.18 ± 0.59 b

61.84 ± 0.77 a

61.21 ± 0.63 ab

61.81 ± 0.79 a

0.027

Week 3

59.77 ± 0.58 b

62.17 ± 0.75 a

62.57 ± 0.88 a

61.48 ± 0.87 ab

0.024

Week 4

59.43 ± 0.76 b

62.02 ± .076 a

62.68 ± 0.92 a

61.88 ± 0.73 a

0.027

  1. Means within a row superscripted by different letters are significantly different (p < 0.05)
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BMC Veterinary Research

ISSN: 1746-6148

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