Effects of Cordyceps cicadae Polysaccharide and Plant Extract on Growth Performance and Immune Function of Yandang Ma-Chicken

LI Ruiping; LIU Zhangguo; DONG Liyan; WANG Qiuxia; XU Shixiang; LI Guoqin; TIAN Yong; CHAI Yiqiu; LIU Suzhen; LU Lizhi

doi:10.3969/j.issn.1006-267x.2020.11.050

2020 , Vol. 32 >Issue 11: 5433 - 5440

DOI: https://doi.org/10.3969/j.issn.1006-267x.2020.11.050

Effects of Cordyceps cicadae Polysaccharide and Plant Extract on Growth Performance and Immune Function of Yandang Ma-Chicken

LI Ruiping ,
LIU Zhangguo ,
DONG Liyan ,
WANG Qiuxia ,
XU Shixiang ,
LI Guoqin ,
TIAN Yong ,
CHAI Yiqiu ,
LIU Suzhen ,
LU Lizhi

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1. College of Animal Science and Technology, Zhejiang A&F University, Hangzhou 311300, China;
2. Animal Husbandry and Veterinary Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China;
3. College of Animal Science, Wenzhou Vocational College of Science and Technology, Wenzhou 325000, China;
4. Key Laboratory of Entomogenous Fungus Resources Research and Development of Wenzhou, Zhejiang Institute of Subtropical Crops, Wenzhou 325005, China

Received date: 2020-03-27

Online published: 2020-11-16

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Abstract

This study investigated the effects of Cordyceps cicadae polysaccharide and plant extract on the growth performance and immune function of Yandang Ma-chicken. A total of 315 Yandang Ma-chicks of 1-day-old randomly selected from the same batch were randomly divided into 7 groups (each group containing 3 replicates and 15 chicks in each replicate) as blank control group (group A), immune control group (group B), antibiotics control group (group C), Cordyceps cicadae polysaccharide group (group D), the low-dose compound of Cordyceps cicadae polysaccharide and plant extract group (group E), the high-dose compound of Cordyceps cicadae polysaccharide and plant extract group (group F), and the plant extract group (group G). The chickens were drenched once per day at the ages of 11 to 17 days and 25 to 31 days, respectively. Group A and group B received 0.5 mL normal saline per bird, group C was administrated with 0.5 mL bacitracin zinc per bird (50 mg/kg BW), group D to group G were administrated with 0.5 mL Cordyceps cicadae polysaccharide per bird (50 mg/kg BW), 0.5 mL Cordyceps cicadae polysaccharide (25 mg/kg BW)+plant extract (125 mg/kg BW) per bird, 0.5 mL Cordyceps cicadae polysaccharide (50 mg/kg BW)+plant extract (125 mg/kg BW) per bird, and 0.5 mL plant extract (250 mg/kg BW) per bird, respectively. The trial lasted for 42 days. The results showed as follows: 1) from 10 to 28 days of age, the average daily gain of Yandang Ma-chicken in group D to group G was significantly higher than that in group B (P<0.05), and compared with group B and group C, the feed to gain ratio in group G was reduced (P>0.05). 2) From 29 to 42 days of age, the average daily gain of Yandang Ma-chicken in group D and group F was significantly higher than that in group B and group C (P<0.05). 3) At the age of 42 days, compared with group B, the body weight of Yandang Ma-chicken in group D and group E was significantly increased (P<0.05). 4) The serum immunoglobulin A content of Yandang Ma-chicken in group F and group G was significantly higher than that in group A and group C (P<0.05), the serum immunoglobulin G content of Yandang Ma-chicken in group F was significantly higher than that in group A to group C (P<0.05), and the serum complement 3 content of Yandang Ma-chicken in group D and group F was significantly higher than that in group C (P<0.05). 5) Compared with group A and group B, the serum contents of interferon-γ, tumor necrosis factor-α and interleukin-2 of Yandang Ma-chicken in group E and group G were all significantly increased (P<0.05), and the serum IL-4 content of Yandang Ma-chicken in group D and group F was significantly higher than that in group A to group C (P<0.05). To sum up, the results show that Cordyceps cicadae polysaccharide, plant extract and their compound can promote the growth and enhance the immunity of Yandang Ma-chicken. Under the condition of this experiment, the high-dose combination group of Cordyceps cicadae polysaccharide (50 mg/kg BW) and (125 mg/kg BW) has the best effect.

Key words： Cordyceps cicadae polysaccharide; plant extract; Yandang Ma-chicken; growth performance; immune function

Cite this article

LI Ruiping , LIU Zhangguo , DONG Liyan , WANG Qiuxia , XU Shixiang , LI Guoqin , TIAN Yong , CHAI Yiqiu , LIU Suzhen , LU Lizhi . Effects of Cordyceps cicadae Polysaccharide and Plant Extract on Growth Performance and Immune Function of Yandang Ma-Chicken[J]. Chinese Journal of Animal Nutrition, 2020 , 32(11) : 5433 -5440 . DOI: 10.3969/j.issn.1006-267x.2020.11.050

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