RESEARCH PAPER

Effects of Polysaccharide of Atractylodes macrocephala Koidz on Growth Performance, Slaughter Performance and Immune Organ Development of Lingnan Yellow Chickens

  • CAO Nan ,
  • YANG Shuzhan ,
  • HU Chunyan ,
  • LU Zhier ,
  • LIU Jiena ,
  • QIAN Long ,
  • LI Wanyan ,
  • HUANG Yunmao ,
  • XU Danning
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  • 1. College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China;
    2. Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou 510225, China;
    3. Guangzhou Customs Technical Center, Guangzhou 510000, China

Received date: 2021-06-16

  Online published: 2022-01-18

Abstract

This study aims to explore the effects of polysaccharide of Atractylodes macrocephala Koidz (PAMK) on growth performance, slaughter performance and immune organ development of Lingnan yellow chickens. A total of 240 healthy one-day-old Lingnan yellow chickens were randomly divided into 4 groups with 6 replicates per group and 10 chickens per replicate. Chickens in the control group were fed a basal diet, and others in experimental groups were fed basal diets supplemented with 100 (PAMK100 group), 400 (PAMK400 group) and 800 mg/kg (PAMK800 group) polysaccharide of Atractylodes macrocephala Koidz, respectively. The experiment lasted for 35 days. The results showed as follows:1) compared with the control group, the average daily feed intake and feed to gain ratio of Lingnan yellow chickens during 1 to 21 days of age and 1 to 35 days of age of PAMK400 group were significantly decreased (P<0.05), and the total weight gain and average daily gain were increased (P>0.05). 2) Compared with the control group, the slaughter rate, half eviscerated rate and full evisceration rate of Lingnan yellow chickens at 35 days of age of PAMK100, PAMK400 and PAMK800 groups were significantly increased (P<0.05). 3) Compared with the control group, the spleen index of Lingnan yellow chickens at 21 days of age of PAMK100 group was significantly decreased (P<0.05), and the bursa of Fabricius index of Lingnan yellow chickens at 21 days of age of PAMK100 and PAMK400 group was significantly increased (P<0.05). 4) Compared with the control group, the number of binuclear cells in liver of Lingnan yellow chickens of PAMK400 group was increased, and the cell types of various types were good; the number of mature thymocytes in thymus was increased, and the cortex-medullary boundary was obvious; the lymphocytes in the spleen were densely arranged and orderly, with good morphology; the number of large lymphoid follicles in bursa of Fabricius was increased, and the follicles were arranged more closely. In conclusion, dietary 400 mg/kg polysaccharide of Atractylodes macrocephala Koidz can improve the growth performance and slaughter performance of Lingnan yellow chickens, and promote the growth and development of immune organs.

Cite this article

CAO Nan , YANG Shuzhan , HU Chunyan , LU Zhier , LIU Jiena , QIAN Long , LI Wanyan , HUANG Yunmao , XU Danning . Effects of Polysaccharide of Atractylodes macrocephala Koidz on Growth Performance, Slaughter Performance and Immune Organ Development of Lingnan Yellow Chickens[J]. Chinese Journal of Animal Nutrition, 2022 , 34(1) : 205 -214 . DOI: 10.3969/j.issn.1006-267x.2022.01.020

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