Effects of formic acid and lactic acid bacteria inoculant on main summer crop silages in Korea

To improve the fermentation quality of silage and reduce the nutrients loss of raw materials during the ensiling process, silage additives are widely used. The effect of additives on silage is also affected by the species of crop. Therefore...

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Main Authors: Sheng Nan Wei, Yan Fen Li, Eun Chan Jeong, Hak Jin Kim, Jong Geun Kim
Format: Article
Language:English
Published: Korean Society of Animal Sciences and Technology 2021-01-01
Series:Journal of Animal Science and Technology
Subjects:
Online Access:http://www.ejast.org/archive/view_article?pid=jast-63-1-91
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author Sheng Nan Wei
Yan Fen Li
Eun Chan Jeong
Hak Jin Kim
Jong Geun Kim
author_facet Sheng Nan Wei
Yan Fen Li
Eun Chan Jeong
Hak Jin Kim
Jong Geun Kim
author_sort Sheng Nan Wei
collection DOAJ
description To improve the fermentation quality of silage and reduce the nutrients loss of raw materials during the ensiling process, silage additives are widely used. The effect of additives on silage is also affected by the species of crop. Therefore, this study was designed to explore the effects of formic acid (FA) and lactic acid bacterial inoculant on the quality of main summer crop silage. The experiment was consisted on split-plot design with three replications. The experiment used the main summer forage crops of proso millet (“Geumsilchal”), silage corn (“Gwangpyeongok”), and a sorghum-sudangrass hybrid (“Turbo-gold”). Treatments included silage with Lactic acid bacterial Inoculant (Lactobacillus plantarum [LP], 1.0 × 106 CFU/g fresh matter), with FA (98%, 5 mL/kg), and a control (C, without additive). All silages were stored for 60 days after preparation. All additives significantly increased the crude protein content and in vitro dry matter digestibility (IVDMD) of the silages and also reduced the content of ammonia nitrogen (NH3-N) and pH. Corn had the highest content of IVDMD, total digestible nutrients and relative feed value among silages. Compared with the control, irrespective of whether FA or LP was added, the water soluble carbohydrate (WSC) of three crops was largely preserved and the WSC content in the proso millet treated with FA was the highest. The treatment of LP significantly increased the lactic acid content of the all silage, while the use of FA significantly increased the content of acetic acid (p < 0.05). The highest count of lactic acid bacteria (LAB) was detected in the LP treatment of corn. In all FA treatment groups, the total microorganism and mold numbers were significantly lower than those of the control and LP groups (p < 0.05). In conclusion, both additives improved the fermentation quality and nutritional composition of the main summer forage crops. The application of FA effectively inhibited the fermentation of the three crops, whereas LAB promoted fermentation. So, both FA and LP can improve the quality of various species of silage.
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spelling doaj.art-1352ecda99064864afda822d7f76cd9e2022-12-21T18:18:45ZengKorean Society of Animal Sciences and TechnologyJournal of Animal Science and Technology2672-01912055-03912021-01-016319110310.5187/jast.2021.e7jast-63-1-91Effects of formic acid and lactic acid bacteria inoculant on main summer crop silages in KoreaSheng Nan Wei0Yan Fen Li1Eun Chan Jeong2Hak Jin Kim3Jong Geun Kim4Graduate School of International Agricultural Technology, Seoul National University, Graduate School of International Agricultural Technology, Seoul National University, Graduate School of International Agricultural Technology, Seoul National University, Research Institute of Eco-friendly Livestock Science, GBST, Seoul National University, Graduate School of International Agricultural Technology, Seoul National University, To improve the fermentation quality of silage and reduce the nutrients loss of raw materials during the ensiling process, silage additives are widely used. The effect of additives on silage is also affected by the species of crop. Therefore, this study was designed to explore the effects of formic acid (FA) and lactic acid bacterial inoculant on the quality of main summer crop silage. The experiment was consisted on split-plot design with three replications. The experiment used the main summer forage crops of proso millet (“Geumsilchal”), silage corn (“Gwangpyeongok”), and a sorghum-sudangrass hybrid (“Turbo-gold”). Treatments included silage with Lactic acid bacterial Inoculant (Lactobacillus plantarum [LP], 1.0 × 106 CFU/g fresh matter), with FA (98%, 5 mL/kg), and a control (C, without additive). All silages were stored for 60 days after preparation. All additives significantly increased the crude protein content and in vitro dry matter digestibility (IVDMD) of the silages and also reduced the content of ammonia nitrogen (NH3-N) and pH. Corn had the highest content of IVDMD, total digestible nutrients and relative feed value among silages. Compared with the control, irrespective of whether FA or LP was added, the water soluble carbohydrate (WSC) of three crops was largely preserved and the WSC content in the proso millet treated with FA was the highest. The treatment of LP significantly increased the lactic acid content of the all silage, while the use of FA significantly increased the content of acetic acid (p < 0.05). The highest count of lactic acid bacteria (LAB) was detected in the LP treatment of corn. In all FA treatment groups, the total microorganism and mold numbers were significantly lower than those of the control and LP groups (p < 0.05). In conclusion, both additives improved the fermentation quality and nutritional composition of the main summer forage crops. The application of FA effectively inhibited the fermentation of the three crops, whereas LAB promoted fermentation. So, both FA and LP can improve the quality of various species of silage.http://www.ejast.org/archive/view_article?pid=jast-63-1-91cornsorghum-sudangrass hybridproso milletadditivessilage
spellingShingle Sheng Nan Wei
Yan Fen Li
Eun Chan Jeong
Hak Jin Kim
Jong Geun Kim
Effects of formic acid and lactic acid bacteria inoculant on main summer crop silages in Korea
Journal of Animal Science and Technology
corn
sorghum-sudangrass hybrid
proso millet
additives
silage
title Effects of formic acid and lactic acid bacteria inoculant on main summer crop silages in Korea
title_full Effects of formic acid and lactic acid bacteria inoculant on main summer crop silages in Korea
title_fullStr Effects of formic acid and lactic acid bacteria inoculant on main summer crop silages in Korea
title_full_unstemmed Effects of formic acid and lactic acid bacteria inoculant on main summer crop silages in Korea
title_short Effects of formic acid and lactic acid bacteria inoculant on main summer crop silages in Korea
title_sort effects of formic acid and lactic acid bacteria inoculant on main summer crop silages in korea
topic corn
sorghum-sudangrass hybrid
proso millet
additives
silage
url http://www.ejast.org/archive/view_article?pid=jast-63-1-91
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