Effects of Sodium Sulfate on Performance, Antioxidant Capacity, Intestinal Morphology and Cecal Microflora Population of Laying Hens

XIONG Pingwen; LIU Bing; CHEN Na; HE Junna; YU Dongyou

doi:10.3969/j.issn.1006-267x.2015.11.007

2015 , Vol. 27 >Issue 11: 3358 - 3365

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.11.007

POULTRY NUTRITION

Effects of Sodium Sulfate on Performance, Antioxidant Capacity, Intestinal Morphology and Cecal Microflora Population of Laying Hens

XIONG Pingwen ,
LIU Bing ,
CHEN Na ,
HE Junna ,
YU Dongyou

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Key Laboratory of Animal Nutrition and Feed in East China of Ministry of Agriculture, College of Animal Science, Zhejiang University, Hangzhou 310058, China

Received date: 2015-06-09

Online published: 2015-11-21

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Abstract

This experiment was conducted to evaluate the effects of sodium sulfate supplementation in laying hens diet by determining performance, antioxidant capacity, intestinal morphology and cecal microflora population. Four hundred and fifty 20-week-old Hyline White laying hens with similar body weight and laying rate were randomly allocated to 5 groups with 6 replicates per group and 15 hens per replicate. Hens in the control group was fed a basal diet, and hens in experimental groups were fed the basal diets supplemented with 0.3%, 0.6%, 1.5%, 3.0% sodium sulfate, respectively. The trial lasted for 8 weeks. The results showed as follows:1) diets supplemented with sodium sulfate tended to improve the laying performance of laying hens with no significant effect (P>0.05), and the effect of low dose groups (0.3% and 0.6%) was better. 2) Compared with control group, diets supplemented with sodium sulfate had no significant influences on antioxidant parameters (P>0.05). Compared with 0.6% group, the activities of glutathione peroxidase (GSH-Px) in plasma and total superoxide dismutase (T-SOD) in liver of high dose (1.5% and 3.0%) groups were significantly decreased (P<0.05 or P<0.01), group added by 3.0% had significantly reduced the total antioxidant capacity (T-AOC) in plasma and the activity of GSH-Px in liver (P<0.05). 3) Compared with control group, the villus height in duodenum and ileum of 0.6% group had significantly raised by 30.51% and 42.63% (P<0.01); the crypt depth in duodenum was significantly reduced (P<0.05) and the ratio of villus height to crypt depth (V/C) in duodenum was significantly raised (P<0.05). Compared with 0.6% group, the villus height in duodenum and ileum and V/C in duodenum of high dose (1.5% and 3.0%) groups were significantly decreased (P<0.01), and the crypt depth in duodenum and ileum of 3.0% group was significantly increased (P<0.01). 4) Compared with control group, 0.3% and 0.6% groups had remarkably reduced the number of Escherichia coli in cecum (P<0.01), and the group supplemented with 0.6% was the best; compared with 0.6% group, high dose (1.5% and 3.0%) groups had significantly increased the number of Enterobacteria and Escherichia coli in cecum (P<0.05 or P<0.01). It is concluded that dietary sodium sulfate supplemental level at 0.3% to 0.6% tend to improve the antioxidant capacity and intestinal morphology, and regulate the cecal microflora population in laying hens. The optimum supplemental level of sodium sulfate is 0.6% in laying hens diet.

Key words： sodium sulfate; laying hens; performance; antioxidant capacity; intestinal morphology; microflora population

Cite this article

XIONG Pingwen , LIU Bing , CHEN Na , HE Junna , YU Dongyou . Effects of Sodium Sulfate on Performance, Antioxidant Capacity, Intestinal Morphology and Cecal Microflora Population of Laying Hens[J]. Chinese Journal of Animal Nutrition, 2015 , 27(11) : 3358 -3365 . DOI: 10.3969/j.issn.1006-267x.2015.11.007

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