Molecular Nutrition

Effects of Plant Essential Oils on Growth Performance, Blood Indexes and Immune Capability of Weaning Piglets

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  • 1. Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China;
    2. Chengdu Hualuo Sheng Technology Co. Ltd., Chengdu 610052, China

Received date: 2017-01-27

  Online published: 2017-07-05

Abstract

The objective of present study was to investigate the effects of dietary plant essential oils (PEO) on growth performance, blood indexes and immune capability of weaning piglets. Twenty-four healthy "Duroc×Landrace×Yorkshire" weaning piglets weaned at 30 days of age with similar body weight were randomly divided into 4 groups with 6 replicates per group and 1 pig per replicate. Pigs in the 4 groups were fed the basal diets supplemented with 50 mg/kg colistin sulfate (CS group) and 50 (group Ⅰ), 100 (group Ⅱ) and 200 mg/kg PEO (group Ⅲ), respectively. The preliminary period lasted for 6 days and the formal period lasted for 14 days. The results showed as follows: 1) the average daily gain (ADG) of weaning piglets in group Ⅲ was significantly higher than that in CS group (P<0.05), and it showed an increasing trend on ADG compared with group Ⅰ and group Ⅱ (P=0.05, P=0.06). The ratio of feed to gain (F/G) of weaning piglets in group Ⅲ was lower than that in other groups, but had no significant difference (P>0.05). 2) The dry matter (DM) digestibility in group Ⅰ was significantly lower than that in other groups (P<0.05), the crude protein (CP) digestibility in group Ⅲ showed an increasing trend compared with group Ⅰ (P=0.07). 3) The red blood cell count in group Ⅲ was significantly higher than that in CS group (P<0.05); the mean corpuscular hemoglobin concentration in group Ⅱ was significantly higher than that in CS group (P<0.05); the serum glucose content in group Ⅲ was higher than that in other groups, but had no significant difference (P>0.05); and the serum albumin content in group Ⅲ was significantly higher than that in other groups (P<0.05). 4) The serum immunoglobulin G content in group Ⅲ was significantly higher than that in CS group and group Ⅰ (P<0.05), the serum immunoglobulin A content in group Ⅲ was significantly higher than that in group Ⅰ (P<0.05). In conclusion, diets supplemented with 200 mg/kg PEO has the effects for improving blood effective components content, and improve body immunity, enhancing weaned piglets health and improving growth. Therefore, the PEO has a potential value in weaning piglets.

Cite this article

ZHOU Xuanwu, WANG Yu, CHEN Daiwen, YU Bing, CHEN Guang, LI Yan, HE Jun . Effects of Plant Essential Oils on Growth Performance, Blood Indexes and Immune Capability of Weaning Piglets[J]. Chinese Journal of Animal Nutrition, 2017 , 29(7) : 2512 -2519 . DOI: 10.3969/j.issn.1006-267x.2017.07.036

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