›› 2018, Vol. 45 ›› Issue (10): 2743-2751.doi: 10.16431/j.cnki.1671-7236.2018.10.011

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Effect of Dietary Picria fel-tarrae Lour. Extracts on Serum Biochemical Indexes and Immune Function of Piglets

LIU Yancan1, LI Xiaoyu1, CHEN Zhongwei2, DUAN Qunpeng2, ZHANG Ning3, GUO Xuan3, HUANG Hongye4, HU Tingjun1, HE Ying2   

  1. 1. College of Animal Science and Technology, Guangxi University, Nanning 530005, China;
    2. Guangxi Key Laboratory of Veterinary Biotechnology, Nanning 530001, China;
    3. Guangxi State Farms Yongxin Animal Husbandry Group Co., Ltd., Nanning 530022, China;
    4. Guangxi Beidouxing Animal Health Pharmaceutical Co., Ltd., Nanning 530003, China
  • Received:2018-04-08 Online:2018-10-20 Published:2018-10-20

Abstract:

This trial was conducted to investigate the effect of dietary Picria fel-tarrae Lour extracts on serum biochemical indexes,anti-oxidant indexes and some immune indexes of piglets to provide theoretical basis and production guidance for rational utilization of Picria fel-terrae Lour extracts in the production of piglets.A total of 250 healthy cross-breed pigs (Duroc×Landrace×Yorkshire) at 28-35 days were selected and randomly divided into 5 groups (groups A,B,C,D and E) with 5 replicates per treatment and 10 piglets per replicate.The piglets in groups A,B and C were fed basal diet supplemented with high (3.5 g/kg),middle (1.75 g/kg)and low doses (0.875 g/kg) Picria fel-tarrae Lour extracts,respectively,that in group D fed basal diet with 4.0 g/kg Qibusan,while that in group E was fed basal diet.The pre-feeding period was 7 d and the trial period was 30 d.Blood samples were obtained from the anterior vena cava by randomly selecting 10 piglets from each group on the 14th day after administration and the 14th day after drug withdrawal to analyze the biochemical,antioxidant and immune indexes.The results showed as follows:①There was no significant difference in blood biochemical indexes among experimental groups,indicating Picria fel-terrae Lour extracts had no adverse effects on glucose metabolism,lipid metabolism and digestive system in piglets.②From the antioxidant indexes,after administration for 14 d,NO content in group B was extremely significantly higher than that of other groups (P < 0.01),and the contents of T-AOC in group A was extremely significantly higher than that of other groups (P < 0.01),and that in groups B and D were extremely significantly or significantly higher than groups C and E (P < 0.01;P < 0.05).At 14th day after drug withdrawal,the contents of GSH in group E was significantly higher than that of groups B,C and D (P < 0.05).There was no significant difference in other indexes among all groups (P > 0.05).③From the immune indexes,after administration for 14 d,the level of IgG in group B was extremely significantly higher than that in other groups (P < 0.01) and the content of IL-6 in group A was significantly higher than that in groups B,D and E (P < 0.05).At 14th day after drug withdrawal,there was no significant difference in immune indexes among all groups (P > 0.05).In conclusion,the dietary supplementation of 0.875 to 3.5 g/kg Picria fel-tarrae Lour extracts had a good effect on enhancing the antioxidant function and improving the immune level of piglets with no adverse effects on piglets health.

Key words: piglets; Picria fel-tarrae Lour extracts; serum biochemical indexes; antioxidant indexes; immune indexes

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