研究论文 RESEARCH PAPER

2种不同加工工艺氧化锌对断奶仔猪生长性能和肠道健康的比较研究

  • 赖金花 ,
  • 王仁杰 ,
  • 贾海 ,
  • 宋转 ,
  • 李俊 ,
  • 司雪萌 ,
  • 武振龙
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  • 1. 中国农业大学动物科学技术学院, 北京 100193;
    2. 成都大帝汉克生物科技有限公司, 成都 611130
赖金花(1997-),女,江西赣州人,硕士研究生,动物营养与饲料科学专业。E-mail:ljh854762223@163.com

收稿日期: 2022-02-17

  网络出版日期: 2022-10-17

Comparative Study of Zinc Oxide with Two Different Processing Techniques on Growth Performance and Intestinal Health of Weaned Piglets

  • LAI Jinhua ,
  • WANG Renjie ,
  • JIA Hai ,
  • SONG Zhuan ,
  • LI Jun ,
  • SI Xuemeng ,
  • WU Zhenlong
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  • 1. College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
    2. Chengdu Dadi Hanke Biotechnology Co., Ltd., Chengdu 611130, China

Received date: 2022-02-17

  Online published: 2022-10-17

摘要

本试验旨在比较2种不同加工工艺氧化锌对断奶仔猪生长性能、腹泻率、血清指标、营养物质消化率以及铜、铁、锌元素利用率和粪便中挥发性脂肪酸组成的影响。选取84头初始体重为(8.25±0.25) kg的断奶仔猪,按照体重相近原则随机分为3组,分别饲喂基础饲粮(对照组)、基础饲粮+1 500 mg/kg包被氧化锌形式的锌(包被氧化锌组)和基础饲粮+1 500 mg/kg包合氧化锌形式的锌(包合氧化锌组),每组4个重复,每个重复7头猪。试验期为14 d。结果表明:与对照组相比,饲粮中添加包被氧化锌或包合氧化锌均可显著提高断奶仔猪的平均日采食量(ADFI)和血清中葡萄糖含量(P < 0.05),但是显著降低了粗蛋白质的消化率(P < 0.05),对平均日增重(ADG)和料重比(F ∶ G)无显著影响(P>0.05);饲粮中添加包合氧化锌还显著降低了断奶仔猪的腹泻率和腹泻评分(P < 0.05),并且显著提高了血清中超氧化物歧化酶活性和粗纤维的消化率(P < 0.05);另外,饲粮中添加包被氧化锌或包合氧化锌均显著降低了断奶仔猪粪便中铜和铁含量(P < 0.05),并且显著提高了粪便中丁酸、戊酸和总挥发性脂肪酸的含量(P < 0.05)。综上所述,在饲粮中添加2种不同加工工艺氧化锌均能降低断奶仔猪的腹泻率,提高机体抗氧化能力,提高铜和铁的利用率,改善粪便中挥发性脂肪酸的组成,并且包合氧化锌的抗腹泻效果优于包被氧化锌。

本文引用格式

赖金花 , 王仁杰 , 贾海 , 宋转 , 李俊 , 司雪萌 , 武振龙 . 2种不同加工工艺氧化锌对断奶仔猪生长性能和肠道健康的比较研究[J]. 动物营养学报, 2022 , 34(10) : 6483 -6490 . DOI: 10.3969/j.issn.1006-267x.2022.10.043

Abstract

The aim of this study was to compare the effect of zinc oxide with two different processing technologies on growth performance, diarrhea rate, serum parameters, nutrient digestibility, utilization efficiency of copper, iron and zinc elements and volatile fatty acid composition in feces of weaned piglets. Eighty-four weaned piglets with the initial body weight of (8.25±0.25) kg were randomly divided into 3 groups, they are control group (basal diet), coated zinc oxide group (basal diet+1 500 mg/kg zinc from coated zinc oxide) and clathrate zinc oxide group (basal diet+1 500 mg/kg zinc from clathrate zinc oxide). There were 4 replicates in each group and 7 pigs in each replicate. The experiment lasted for 14 d. The results showed as follows: compared with the control group, diet supplemented with coated zinc oxide or clathrate zinc oxide both significantly increased the average daily feed intake (ADFI) and serum glucose (GLU) content of weaned piglets (P < 0.05), but reduced the digestibility of crude protein (P < 0.05), and had no significant effects on the average daily gain (ADG) and feed ∶ gain (F ∶ G) (P>0.05); diet supplemented with clathrate zinc oxide also significantly reduced the diarrhea rate and diarrhea score of weaned piglets (P < 0.05), and significantly improved the serum superoxide dismutase (SOD) activity and the digestibility of crude fiber (P < 0.05); in addition, diet supplemented with coated zinc oxide or clathrate zinc oxide significantly increased the contents of butyric acid, valeric acid and total volatile fatty acids in feces of weaned piglets (P < 0.05), and significantly decreased the copper and iron contents in feces of weaned piglets (P < 0.05). In conclusion, the addition of zinc oxide in diets with two different processing techniques both can reduce diarrhea rate and improve antioxidant ability, nutrient digestibility, copper and iron utilization efficiency and volatile fatty acid composition in feces of weaned piglets, and the anti-diarrhea effect of clathrate zinc oxide was better than that of coated zinc oxide.

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