| Title: | Enriching the nutritive value of marigold (Tagetes erecta L) crop residues as a ruminant feed by lactic acid bacteria during ensilage |
| Author(s): | Hou Z; Liu J; Cai M; Liu Y; Mu L; Gao Y; Wanapat M; Huang B; |
| Address: | "College of Animal Science and Technology, Yunnan Agricultural University, Kunming, 650201, China. Yunnan Academy of Grassland and Animal Science, Kunming, 650212, China. Institute of Alpine Economic Plant, Yunnan Academy of Agricultural Sciences, Lijiang, 674199, China. College of Landscape and Horticulture, Southwest Forestry University, Kunming, 650224, China. Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Tropical Feed Resources Research and Development Center, Khon Kaen, 40002, Thailand. Yunnan Academy of Grassland and Animal Science, Kunming, 650212, China. hbz@ynbp.cn" |
| DOI: | 10.1186/s12917-021-02762-8 |
| ISSN/ISBN: | 1746-6148 (Electronic) 1746-6148 (Linking) |
| Abstract: | "BACKGROUND: Marigold (Tagetes erecta L) accounts for over half of the world's loose flower production, and marigold crop residue (MCR) are abundantly available and should be used as a forage. In this study, MCR from the last commercial flower pickings was ensilaged with lactic acid bacteria (LAB) and the shift in their volatile organic compounds (VOCs) profiles was monitored. Samples were collected at 6 different times during ensilage (3, 6, 9, 12, 15, 30 days) to determine and quantify the VOCs changes using a solid-phase microextraction (SPME) technique and gas chromatography - mass spectrometry (GC-MS). RESULTS: After 30 days, the caryophyllene and piperitone, which account for 14.7 and 12.1% of total VOCs, decreased by 32.9 and 9.6% respectively, alcohols increased from 2.8 to 8.1%, and the acetic acid content increased by 560%. CONCLUSION: We have confirmed LAB can degrade the content of terpenes and enhance the content of alcohols and acids in MCR, which was for the first time on terpene degradation in fodder by ensilage. These results have shed light on our understanding of how to improve fodder odor and to enhance terpene degradation by lactic acid bacteria fermentation" |
| Keywords: | Animal Feed/*analysis *Lactobacillales Nutritive Value Silage/*analysis/microbiology Tagetes/*chemistry Volatile Organic Compounds/analysis Biodegradation Marigold Terpenes Volatile organic compounds; |
| Notes: | "MedlineHou, Zhijiang Liu, Jianyong Cai, Ming Liu, Yanpei Mu, Lan Gao, Yuee Wanapat, Metha Huang, Bizhi eng CARS-37/China Agriculture Research System/ 2018IC074/Academician workstation of Zhibiao Nan/ 2012HA012/High-tech Talents Introduction Program of Yunnan Province/ 2019HB035/Yunnan Province Candidate talents Project for Academic and Technical leaders of Middle-aged and Young talents/ 2020/Light of West China/ 202001AU070094/Yunnan Fundamental Research Projects/ 16190051/Demonstration Project of Exploitation and Utilization of High-Quality Green and Rough Feed Resources/ England 2021/02/14 BMC Vet Res. 2021 Feb 12; 17(1):74. doi: 10.1186/s12917-021-02762-8" |
