Effects of Dietary Superoxide Dismutase Mimics on Growth Performance, Serum Immune Indexes and Intestinal Antioxidant Indexes and Digestive Enzyme Activities of Broilers

MA Weiqing; WANG Sibo; YANG Ji; CUI Hongxia; ZHAO Danhua; XU Li

doi:10.3969/j.issn.1006-267x.2020.01.050

2020 , Vol. 32 >Issue 1: 432 - 439

DOI: https://doi.org/10.3969/j.issn.1006-267x.2020.01.050

Effects of Dietary Superoxide Dismutase Mimics on Growth Performance, Serum Immune Indexes and Intestinal Antioxidant Indexes and Digestive Enzyme Activities of Broilers

MA Weiqing ,
WANG Sibo ,
YANG Ji ,
CUI Hongxia ,
ZHAO Danhua ,
XU Li

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College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China

Received date: 2019-07-02

Online published: 2020-01-19

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Abstract

This study was to investigate the effects of dietary superoxide dismutase mimics (SODm) on growth performance, serum immune indexes and intestinal antioxidant indexes and digestive enzyme activities of broilers. A total of 288 one-day-old male Arbor Acres (AA) broilers were randomly divided into 4 groups with 6 replicates in each group and 12 replicates in each group. Broilers in the control group (group Ⅰ) were fed a basal diet, and the others in experimental groups (groups Ⅱ, Ⅲ and Ⅳ) were fed the basal diet supplemented with 1.0, 2.0 and 3.0 g/kg SODm, respectively. The experiment lasted for 42 days. The results showed as follows:1) dietary SODm had no significant effect on the growth performance of broilers (P>0.05). 2) On 21 days of age, the serum immunoglobulin G (IgG) content of group Ⅲ was significantly higher than that of the control group (P<0.05), the serum immunoglobulin M (IgM) content of group Ⅳ was significantly higher than that of other groups (P<0.05), and there was no significant difference in serum immunoglobulin A (IgA) content among all groups (P>0.05). On 42 days of age, there were no significant differences in contents of IgA, IgG and IgM in serum among all groups (P>0.05). 3) On 21 days of age, the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in intestine of group Ⅲ were significantly higher than those of the control group (P<0.05), and the malondialdehyde (MDA) content was significantly lower than that of the control group (P<0.05). On 42 days of age, the intestinal total antioxidant capacity (T-AOC) of group Ⅳ was significantly higher than that of other groups (P<0.05); and the intestinal MDA content of groups Ⅲ and Ⅳ was significantly lower than that of the control group (P<0.05). 4) On 21 days of age, the activities of trypsin, pepsin and lipase in intestine of groups Ⅱ and Ⅲ were significantly higher than those of the control group (P<0.05); on 42 days of age, the intestinal pepsin activity of group Ⅲ was significantly higher than that of other groups (P<0.05). It can be seen that dietary SODm can improve the serum immune indexes and intestinal antioxidant capacity and digestive enzyme activities of broilers.

Key words： superoxide dismutase mimics; broilers; immune; antioxidant; digestive enzyme

Cite this article

MA Weiqing , WANG Sibo , YANG Ji , CUI Hongxia , ZHAO Danhua , XU Li . Effects of Dietary Superoxide Dismutase Mimics on Growth Performance, Serum Immune Indexes and Intestinal Antioxidant Indexes and Digestive Enzyme Activities of Broilers[J]. Chinese Journal of Animal Nutrition, 2020 , 32(1) : 432 -439 . DOI: 10.3969/j.issn.1006-267x.2020.01.050

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