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Asian-Australas J Anim Sci > Accepted Articles
DOI: https://doi.org/10.5713/ajas.20.0012    [Accepted] Published online April 13, 2020.
Achyranthes japonica extracts supplementation to growing pigs positively influences growth performance, nutrient digestibility, fecal microbial shedding, and fecal gas emission
Xiao Liu1  , Sang In Lee1  , In Ho Kim1,* 
Department of Animal Resource and Science, Dankook University Cheonan 31116, Korea
Correspondence:  In Ho Kim, Tel: +82-41-550-3652, Fax: +82-41-565-2949, Email: inhokim@dankook.ac.kr
Received: 7 January 2020   • Revised: 19 January 2020   • Accepted: 9 April 2020
Abstract
Objective
An experiment was conducted to investigate the effects of Achyranthes japonica extracts (AJE) on the growth performance, nutrient digestibility, fecal microbial shedding, and fecal gas emission of growing pigs.
Methods
A total of 180 [(Landrace×Yorkshire)×Duroc] growing pigs with initial body weight (BW) of 23.94 ± 1.54 kg were used in this study to investigate the effects of AJE as a feed additive. Dietary treatments included: 1) CON (Basal diet), 2) TRT1 (Basal diet + 0.05% AJE), and 3) TRT2 (Basal diet + 0.10% AJE).
Results
As a result of the dietary supplementation of 0% to 0.10% AJE, a linear increase of BW (p<0.05) on d 21 and 42, a linear increase of average daily gain (ADG) (p<0.05) during d 21 to 42, a trend in linear increase of ADG (p<0.10) during d 0 to 21 and d 0 to 42, a linear increase of gain to feed ratio (G:F) (p<0.05) during d 0 to 42, and a tendency in the linear increase of G:F during d 21 to 42 were observed in this study. Additionally, dietary supplementation of 0% to 0.10% AJE had a linear increase (p<0.05) on the apparent total tract digestibility of dry matter (DM) and energy, a linear increase (p<0.05) on lactic acid bacteria counts, a tendency in reducing (linear effect, p<0.10) coliform bacteria counts, and a linear decrease (p<0.05) in excreta H2S emission content in growing pigs.
Conclusion
In conclusion, the results suggested that AJE had the potential to enhance growth performance, DM and energy digestibility, and fecal lactic acid bacteria counts, and decrease the fecal coliform bacteria counts and excreta H2S emission in growing pigs.
Keywords: Achyranthes japonica Extracts; Growth Performance; Nutrient Digestibility; Fecal Microbial Shedding; Fecal Gas Emissions; Growing Pigs


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