Effects of Different Additives on the Chemical Composition, Fermentation Profile, In Vitro and In Situ Digestibility of Paper mulberry Silage

Paper mulberry <i>(Broussonetia papyrifera</i>) plants are served as a local roughage in China, and they are mostly processed as silage for ruminants. This study aimed to explore the effects of different silage additives on the chemical composition, fermentation profile, as well as the i...

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Main Authors: Wei Wang, Yangyi Hao, Chenglong Luo, Qianqian Wang, Zhonghan Wang, Dong Li, Jing Yuan, Zhijun Cao, Hongjian Yang, Shengli Li
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Fermentation
Subjects:
Online Access:https://www.mdpi.com/2311-5637/8/9/435
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author Wei Wang
Yangyi Hao
Chenglong Luo
Qianqian Wang
Zhonghan Wang
Dong Li
Jing Yuan
Zhijun Cao
Hongjian Yang
Shengli Li
author_facet Wei Wang
Yangyi Hao
Chenglong Luo
Qianqian Wang
Zhonghan Wang
Dong Li
Jing Yuan
Zhijun Cao
Hongjian Yang
Shengli Li
author_sort Wei Wang
collection DOAJ
description Paper mulberry <i>(Broussonetia papyrifera</i>) plants are served as a local roughage in China, and they are mostly processed as silage for ruminants. This study aimed to explore the effects of different silage additives on the chemical composition, fermentation profile, as well as the in vitro and in situ digestibility of paper mulberry (PM) silage. Four groups consisting of PM silage, three with additives and one without any additives as the control group (CON), were established. The three experimental groups with additives were set up as follows: CON with 5 × 10<sup>6</sup> CFU per gram of fresh PM weight of lactic acid bacteria (<i>Lactobacillus plantarum</i>) (LAB); CON with 3% fresh PM weight of molasses (MOL) added to the PM silage; and CON with both LAB and MOL added (LM). After 45 days of ensiling at 20 °C, all of the PM treatment groups increased their ash content and decreased their water-soluble carbohydrate content (<i>p</i> < 0.05). Meanwhile, the pH and NH<sub>3</sub>-N content of the PM silage were lower in the additive treatment groups than in the CON group (<i>p</i> < 0.05). Lactic acid in the LM group was the highest (<i>p</i> < 0.05) among the four groups, and trace amounts of butyric acid was detected only in the CON group. In vitro dry matter digestibility was similar among all groups. Results of the in situ experiment found that the effective digestibility of the PM silage dry matter, as well as the acid detergent fiber digestibility was higher in the LM group than in the CON group (<i>p</i> < 0.05). In conclusion, the addition of LAB, MOL, and their combination can improve PM silage fermentation and improve the in situ digestibility of dry matter and acid detergent fiber; however they do not affect in the vitro digestibility of PM silage.
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spelling doaj.art-95c95468b48e4af2a092c87f9a9003582023-11-23T16:10:38ZengMDPI AGFermentation2311-56372022-09-018943510.3390/fermentation8090435Effects of Different Additives on the Chemical Composition, Fermentation Profile, In Vitro and In Situ Digestibility of Paper mulberry SilageWei Wang0Yangyi Hao1Chenglong Luo2Qianqian Wang3Zhonghan Wang4Dong Li5Jing Yuan6Zhijun Cao7Hongjian Yang8Shengli Li9College of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaCollege of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaCollege of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaCollege of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaCollege of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaCollege of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaCollege of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaCollege of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaCollege of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaCollege of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaPaper mulberry <i>(Broussonetia papyrifera</i>) plants are served as a local roughage in China, and they are mostly processed as silage for ruminants. This study aimed to explore the effects of different silage additives on the chemical composition, fermentation profile, as well as the in vitro and in situ digestibility of paper mulberry (PM) silage. Four groups consisting of PM silage, three with additives and one without any additives as the control group (CON), were established. The three experimental groups with additives were set up as follows: CON with 5 × 10<sup>6</sup> CFU per gram of fresh PM weight of lactic acid bacteria (<i>Lactobacillus plantarum</i>) (LAB); CON with 3% fresh PM weight of molasses (MOL) added to the PM silage; and CON with both LAB and MOL added (LM). After 45 days of ensiling at 20 °C, all of the PM treatment groups increased their ash content and decreased their water-soluble carbohydrate content (<i>p</i> < 0.05). Meanwhile, the pH and NH<sub>3</sub>-N content of the PM silage were lower in the additive treatment groups than in the CON group (<i>p</i> < 0.05). Lactic acid in the LM group was the highest (<i>p</i> < 0.05) among the four groups, and trace amounts of butyric acid was detected only in the CON group. In vitro dry matter digestibility was similar among all groups. Results of the in situ experiment found that the effective digestibility of the PM silage dry matter, as well as the acid detergent fiber digestibility was higher in the LM group than in the CON group (<i>p</i> < 0.05). In conclusion, the addition of LAB, MOL, and their combination can improve PM silage fermentation and improve the in situ digestibility of dry matter and acid detergent fiber; however they do not affect in the vitro digestibility of PM silage.https://www.mdpi.com/2311-5637/8/9/435paper mulberry silagelactic acid bacteriamolassesin vitro digestibilityin situ digestibility
spellingShingle Wei Wang
Yangyi Hao
Chenglong Luo
Qianqian Wang
Zhonghan Wang
Dong Li
Jing Yuan
Zhijun Cao
Hongjian Yang
Shengli Li
Effects of Different Additives on the Chemical Composition, Fermentation Profile, In Vitro and In Situ Digestibility of Paper mulberry Silage
Fermentation
paper mulberry silage
lactic acid bacteria
molasses
in vitro digestibility
in situ digestibility
title Effects of Different Additives on the Chemical Composition, Fermentation Profile, In Vitro and In Situ Digestibility of Paper mulberry Silage
title_full Effects of Different Additives on the Chemical Composition, Fermentation Profile, In Vitro and In Situ Digestibility of Paper mulberry Silage
title_fullStr Effects of Different Additives on the Chemical Composition, Fermentation Profile, In Vitro and In Situ Digestibility of Paper mulberry Silage
title_full_unstemmed Effects of Different Additives on the Chemical Composition, Fermentation Profile, In Vitro and In Situ Digestibility of Paper mulberry Silage
title_short Effects of Different Additives on the Chemical Composition, Fermentation Profile, In Vitro and In Situ Digestibility of Paper mulberry Silage
title_sort effects of different additives on the chemical composition fermentation profile in vitro and in situ digestibility of paper mulberry silage
topic paper mulberry silage
lactic acid bacteria
molasses
in vitro digestibility
in situ digestibility
url https://www.mdpi.com/2311-5637/8/9/435
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