Effects of Plant Essential Oil Preparation on Growth Performance of Weaned Piglets and Concentration of Microbial Aerosol and Ammonia in Air in House

WU Sheng; PENG Yan

doi:10.3969/j.issn.1006-267x.2019.10.038

2019 , Vol. 31 >Issue 10: 4729 - 4736

DOI: https://doi.org/10.3969/j.issn.1006-267x.2019.10.038

Effects of Plant Essential Oil Preparation on Growth Performance of Weaned Piglets and Concentration of Microbial Aerosol and Ammonia in Air in House

WU Sheng ,
PENG Yan

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Shanghai Menon Animal Nutrition Technology Co., Ltd., Shanghai 201821, China

Received date: 2019-03-15

Online published: 2019-10-17

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Abstract

This experiment was conducted to investigate the effects of plant essential oil preparation on growth performance of weaned piglets and concentration of microbial aerosol and ammonia (NH₃) in the air in house. The experiment selected 3 pig houses with similar structure in an intensive pig farm in Huaian city as the experimental pig house. A total of 660 healthy 28-day-old "Duroc×Langdrance×Large White" piglets with an average body weight of (10.84±0.28) kg were randomly allocated to 3 houses with 20 replicates per house and 11 piglets per replicates. Piglets in the control group were fed a basal diet, piglets in the test group 1 (EO1 group) were fed the basal diet+100 mg/kg plant essential oil preparation, and piglets in the test group 2 (EO2 group) were fed the basal diet+200 mg/kg plant essential oil preparation. The pre-experimental period lasted for 3 days, and the experimental period lasted for 7 days. The results showed as follows:1) compared with the control group, the final weight of EO2 group was increased by 1.15% (P<0.05), the average daily gain of EO2 group and EO1 group was increased by 4.19% (P<0.05) and 2.79% (P<0.05), respectively. 2) The concentration of airborne aerobic bacteria in the air of EO2 group was significantly lower than that of EO1 group and control group (P<0.05), and the concentration of fungus in the air of EO1 group was significantly lower than that of EO2 group and control group (P<0.05). The concentration of microbial aerosols in the levels Ⅰ and Ⅱ of EO2 group and EO1 group was decreased by 16.6%, 27.07% and 10.34%, 18.04% compared with the control group, respectively. 3) Among different pig house, the concentration of NH₃ in house at different times of the control group was significantly higher than that of EO1 group and EO2 group (P<0.01); the average concentration of NH₃ in house at different locations in EO2 group was significantly lower than that of EO1 group and control group (P<0.01), and that of EO1 group was significantly lower than that of the control group (P<0.01). In conclusion, dietary supplementation of plant essential oil preparation can improve the growth performance of piglets, decrease the concentration of microbial aerosol and NH₃ in piglet houses, and can effectively reduce the harm of harmful substances in the air to animals and humans.

Key words： plant essential oil preparation; weaned piglets; growth performance; micobial aerosoal; ammonia

Cite this article

WU Sheng , PENG Yan . Effects of Plant Essential Oil Preparation on Growth Performance of Weaned Piglets and Concentration of Microbial Aerosol and Ammonia in Air in House[J]. Chinese Journal of Animal Nutrition, 2019 , 31(10) : 4729 -4736 . DOI: 10.3969/j.issn.1006-267x.2019.10.038

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