Chemical composition and in vitro digestibility of corn stover during field exposure and the fermentation characteristics of silage prepared with microbial additives
Objective To effectively use corn stover resources as animal feed, we explored the chemical composition and in vitro digestibility of corn stover during field exposure and the fermentation characteristics of silage prepared with lactic acid bacteria (LAB) and cellulase. Methods Corn ears including t...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Asian-Australasian Association of Animal Production Societies
2019-12-01
|
| Series: | Asian-Australasian Journal of Animal Sciences |
| Subjects: | |
| Online Access: | http://www.ajas.info/upload/pdf/ajas-18-0886.pdf |
| _version_ | 1811270141268197376 |
|---|---|
| author | Jun Lei Gao Peng Wang Chang Hai Zhou Ping Li Hong Yu Tang Jia Bao Zhang Yimin Cai |
| author_facet | Jun Lei Gao Peng Wang Chang Hai Zhou Ping Li Hong Yu Tang Jia Bao Zhang Yimin Cai |
| author_sort | Jun Lei Gao |
| collection | DOAJ |
| description | Objective To effectively use corn stover resources as animal feed, we explored the chemical composition and in vitro digestibility of corn stover during field exposure and the fermentation characteristics of silage prepared with lactic acid bacteria (LAB) and cellulase. Methods Corn ears including the cobs and shucks were harvested at the ripe stage. The corn stover was exposed in the field under natural weather conditions. Silages were prepared after 0, 2, 4, 7, 15, 30, and 60 d of exposure. Corn stover was chopped into approximately 1 to 2 cm lengths and then packed into 5 liter plastic silos. The ensiling density was 550.1±20.0 g/L of fresh matter, and the silos were kept at room temperature (10°C to 25°C). Silage treatments were designed as follows: without additives (control), with LAB, with cellulase, and with LAB+ cellulase. After 45 d of fermentation, the silos were opened for chemical composition, fermentation quality and in vitro digestion analyses. Results After harvest, corn stover contained 78.19% moisture, 9.01% crude protein (CP) and 64.54% neutral detergent fiber (NDF) on a dry matter (DM) basis. During field exposure, the DM, NDF, and acid detergent fiber (ADF) contents of corn stover increased, whereas the CP and water-soluble carbohydrate contents and in vitro digestibility of the DM and CP decreased (p<0.05). Compared to the control silage, cellulase-treated silage had lower (p<0.05) NDF and ADF contents. The pH values were lower in silage treated with LAB, cellulase, or LAB+cellulase, and lactic acid contents were higher (p<0.05) than those of the control. Silage treated with cellulase or LAB+cellulase improved (p<0.05) the in vitro DM digestibility (IVDMD) compared to that of the control or LAB-treated silage. Conclusion Corn stover silage should be prepared using fresh materials since stover nutrients are lost during field exposure, and LAB and cellulase can improve silage fermentation and IVDMD. |
| first_indexed | 2024-04-12T21:54:24Z |
| format | Article |
| id | doaj.art-c2e816a9674f48eab5bc22eb77852412 |
| institution | Directory Open Access Journal |
| issn | 1011-2367 1976-5517 |
| language | English |
| last_indexed | 2024-04-12T21:54:24Z |
| publishDate | 2019-12-01 |
| publisher | Asian-Australasian Association of Animal Production Societies |
| record_format | Article |
| series | Asian-Australasian Journal of Animal Sciences |
| spelling | doaj.art-c2e816a9674f48eab5bc22eb778524122022-12-22T03:15:21ZengAsian-Australasian Association of Animal Production SocietiesAsian-Australasian Journal of Animal Sciences1011-23671976-55172019-12-0132121854186310.5713/ajas.18.088624254Chemical composition and in vitro digestibility of corn stover during field exposure and the fermentation characteristics of silage prepared with microbial additivesJun Lei Gao0Peng Wang1Chang Hai Zhou2Ping Li3Hong Yu Tang4Jia Bao Zhang5Yimin Cai6 College of Animal Science, Jilin University, Changchun 130062, China College of Animal Science, Jilin University, Changchun 130062, China College of Animal Science, Jilin University, Changchun 130062, China School of Architecture and Civil Engineering, Changchun Sci-Tech University, Changchun 130600, China College of Animal Science, Jilin University, Changchun 130062, China College of Animal Science, Jilin University, Changchun 130062, China Japan International Research Center for Agricultural Sciences, Tsukuba 305-8686, JapanObjective To effectively use corn stover resources as animal feed, we explored the chemical composition and in vitro digestibility of corn stover during field exposure and the fermentation characteristics of silage prepared with lactic acid bacteria (LAB) and cellulase. Methods Corn ears including the cobs and shucks were harvested at the ripe stage. The corn stover was exposed in the field under natural weather conditions. Silages were prepared after 0, 2, 4, 7, 15, 30, and 60 d of exposure. Corn stover was chopped into approximately 1 to 2 cm lengths and then packed into 5 liter plastic silos. The ensiling density was 550.1±20.0 g/L of fresh matter, and the silos were kept at room temperature (10°C to 25°C). Silage treatments were designed as follows: without additives (control), with LAB, with cellulase, and with LAB+ cellulase. After 45 d of fermentation, the silos were opened for chemical composition, fermentation quality and in vitro digestion analyses. Results After harvest, corn stover contained 78.19% moisture, 9.01% crude protein (CP) and 64.54% neutral detergent fiber (NDF) on a dry matter (DM) basis. During field exposure, the DM, NDF, and acid detergent fiber (ADF) contents of corn stover increased, whereas the CP and water-soluble carbohydrate contents and in vitro digestibility of the DM and CP decreased (p<0.05). Compared to the control silage, cellulase-treated silage had lower (p<0.05) NDF and ADF contents. The pH values were lower in silage treated with LAB, cellulase, or LAB+cellulase, and lactic acid contents were higher (p<0.05) than those of the control. Silage treated with cellulase or LAB+cellulase improved (p<0.05) the in vitro DM digestibility (IVDMD) compared to that of the control or LAB-treated silage. Conclusion Corn stover silage should be prepared using fresh materials since stover nutrients are lost during field exposure, and LAB and cellulase can improve silage fermentation and IVDMD.http://www.ajas.info/upload/pdf/ajas-18-0886.pdfcellulasecorn stover digestibilitylactic acid bacteriasilage fermentation |
| spellingShingle | Jun Lei Gao Peng Wang Chang Hai Zhou Ping Li Hong Yu Tang Jia Bao Zhang Yimin Cai Chemical composition and in vitro digestibility of corn stover during field exposure and the fermentation characteristics of silage prepared with microbial additives Asian-Australasian Journal of Animal Sciences cellulase corn stover digestibility lactic acid bacteria silage fermentation |
| title | Chemical composition and in vitro digestibility of corn stover during field exposure and the fermentation characteristics of silage prepared with microbial additives |
| title_full | Chemical composition and in vitro digestibility of corn stover during field exposure and the fermentation characteristics of silage prepared with microbial additives |
| title_fullStr | Chemical composition and in vitro digestibility of corn stover during field exposure and the fermentation characteristics of silage prepared with microbial additives |
| title_full_unstemmed | Chemical composition and in vitro digestibility of corn stover during field exposure and the fermentation characteristics of silage prepared with microbial additives |
| title_short | Chemical composition and in vitro digestibility of corn stover during field exposure and the fermentation characteristics of silage prepared with microbial additives |
| title_sort | chemical composition and in vitro digestibility of corn stover during field exposure and the fermentation characteristics of silage prepared with microbial additives |
| topic | cellulase corn stover digestibility lactic acid bacteria silage fermentation |
| url | http://www.ajas.info/upload/pdf/ajas-18-0886.pdf |
| work_keys_str_mv | AT junleigao chemicalcompositionandinvitrodigestibilityofcornstoverduringfieldexposureandthefermentationcharacteristicsofsilagepreparedwithmicrobialadditives AT pengwang chemicalcompositionandinvitrodigestibilityofcornstoverduringfieldexposureandthefermentationcharacteristicsofsilagepreparedwithmicrobialadditives AT changhaizhou chemicalcompositionandinvitrodigestibilityofcornstoverduringfieldexposureandthefermentationcharacteristicsofsilagepreparedwithmicrobialadditives AT pingli chemicalcompositionandinvitrodigestibilityofcornstoverduringfieldexposureandthefermentationcharacteristicsofsilagepreparedwithmicrobialadditives AT hongyutang chemicalcompositionandinvitrodigestibilityofcornstoverduringfieldexposureandthefermentationcharacteristicsofsilagepreparedwithmicrobialadditives AT jiabaozhang chemicalcompositionandinvitrodigestibilityofcornstoverduringfieldexposureandthefermentationcharacteristicsofsilagepreparedwithmicrobialadditives AT yimincai chemicalcompositionandinvitrodigestibilityofcornstoverduringfieldexposureandthefermentationcharacteristicsofsilagepreparedwithmicrobialadditives |