RESEARCH PAPER

Effects of Dietary Different Types and Different Levels of Acidifiers on Growth Performance, Nutrient Apparent Metabolic Rates and Serum Biochemical, Antioxidant and Immune Indexes of Broilers

  • LIU Xinze ,
  • HU Youjun ,
  • ZHAO Xiaonan ,
  • ZHANG Ruiyang ,
  • ZHU Yujing ,
  • ZHANG Yong ,
  • LI Fangfang
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  • 1. College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China;
    2. Guangdong Nuacid Biotech Co., Ltd., Qingyuan 511500, China

Received date: 2021-11-02

  Online published: 2022-05-14

Abstract

This experiment was conducted to investigate the effects of dietary different types and different levels of acidifiers on growth performance, nutrient apparent metabolic rates and serum biochemical, antioxidant and immune indexes of broilers, to provide a reasonable reference for the use of acidifiers in broiler diets. A 4×2 factorial design was adopted, a total of 1 080 healthy 7-day-old Arbor Acres (AA) broilers were randomly divided into 9 groups with 6 replicates per group and 20 broilers per replicate. Broilers in 9 groups were fed basal diet (group Ⅰ), basal diet+0.1% formic acid ammonium formate compound acidifier (Ⅱ), basal diet+0.2% formic acid ammonium formate compound acidifier (group Ⅲ), basal diet+0.1% (formic acid ammonium formate+ essential oil) compound acidifier (group Ⅳ), basal diet+0.2% (formic acid ammonium formate+ essential oil) compound acidifier (group Ⅴ), basal diet+0.1% sustained-release formic acid (group Ⅵ), basal diet+0.2% sustained-release formic acid (group Ⅶ), basal diet+0.1% (sustained-release formic acid+essential oil) compound acidifier (group Ⅷ) and basal diet+0.2% (sustained-release formic acid+essential oil) compound acidifier (group Ⅸ). The experiment lasted for 42 days. The results showed as follows:1) compared with the control group, the feed to gain ratio of broilers in early stage of groups Ⅴ, Ⅵ and Ⅸ was significantly increased (P<0.05), and the average daily feed intake of broilers in whole period of groups Ⅱ, Ⅲ, Ⅳ, Ⅴ, Ⅵ, Ⅶ and Ⅸ was significantly increased (P<0.05). 2) Compared with the control group, the apparent metabolic rates of ether extract, crude protein, calcium and phosphorus of broilers of groups Ⅳ, Ⅴ, Ⅵ, Ⅶ and Ⅷ were significantly increased (P<0.05). 3) Compared with the control group, the serum albumin content of groups Ⅳ, Ⅵ, Ⅶ and Ⅷ was significantly increased (P<0.05), the serum urea nitrogen content of groups Ⅳ and Ⅸ was significantly decreased (P<0.05), and the serum corticosterone content of groups Ⅲ, Ⅳ, Ⅶ and Ⅸ was significantly decreased (P<0.05). 4) Compared with the control group, the serum total antioxidant capacity of groups Ⅴ, Ⅷ and Ⅸ was significantly increased (P<0.05), the serum superoxide dismutase activity of group Ⅵ was significantly increased (P<0.05), the serum glutathione peroxidase activity of group Ⅲ was significantly increased (P<0.05), and the serum malondialdehyde content of groups Ⅵ and Ⅷ was significantly decreased (P<0.05). 5) Compared with the control group, the serum immunoglobulin A content of groups Ⅳ and Ⅷ was significantly increased (P<0.05), and the serum immunoglobulin G content of groups Ⅳ, Ⅴ, Ⅵ, Ⅶ, Ⅷ and Ⅸ was significantly increased (P<0.05). In conclusion, dietary adding 0.1% (ammonium formate+essential oil) compound acidifier can improve the growth performance, nutrient apparent metabolic rates and immune function of broilers. Therefore, under this experimental condition, it is recommended to use 0.1% (ammonium formate+essential oil) compound acidifier in broiler diets.

Cite this article

LIU Xinze , HU Youjun , ZHAO Xiaonan , ZHANG Ruiyang , ZHU Yujing , ZHANG Yong , LI Fangfang . Effects of Dietary Different Types and Different Levels of Acidifiers on Growth Performance, Nutrient Apparent Metabolic Rates and Serum Biochemical, Antioxidant and Immune Indexes of Broilers[J]. Chinese Journal of Animal Nutrition, 2022 , 34(5) : 2949 -2960 . DOI: 10.3969/j.issn.1006-267x.2022.05.024

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