Dennis Melchert , Till Beuerle , Denny Wiedow , Jürgen Müller
{"title":"常用牧草保护方法对受沼泽马尾草(Equisetum palustre L.)侵扰的草地生物碱含量的影响","authors":"Dennis Melchert , Till Beuerle , Denny Wiedow , Jürgen Müller","doi":"10.1016/j.anifeedsci.2024.115942","DOIUrl":null,"url":null,"abstract":"<div><p>The toxic sporophyte marsh horsetail (<em>Equisetum palustre</em> L.) increasingly infests moist and wet grasslands in Europe because of climate change, deeutrophication actions, and rewetting measures. Farmers, veterinarians, and authorities are insecure how to address this newly emerging situation, as only little information on toxin levels is available and information for no effect levels in livestock is based on outdated analytical methods. Hence, an important question is to what extent feed conservation measures could lead to a significant reduction in alkaloid levels. We investigated the capabilities of the two most common forage conservation methods, haying and ensiling, in reducing the initial alkaloid levels of fresh <em>E. palustre</em> contaminated biomass by field and lab-scale experiments simulating favourable and no favourable conservation conditions. Haying reduced the main alkaloid content up to 25% under ideal drying conditions only, probably due to friability losses of horsetail plant parts. However, under non-favourable weather conditions, alkaloid concentrations increased. Ensiling procedures reduced the main alkaloid content by less than 10%. There were no significant effects of ensilage duration or wilting degree on alkaloid content, despite a tendency toward a higher reduction in fresh silages. Common forage conservation methods have limited potential for degradation of the main marsh horsetail alkaloids. Our results give reason to consider other biomass utilization paths, such as composting or biomethanization for contaminated grassland growth instead of classical feed preparation.</p></div>","PeriodicalId":7861,"journal":{"name":"Animal Feed Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0377840124000701/pdfft?md5=57fb192558a340de3b83ef39b6a67512&pid=1-s2.0-S0377840124000701-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Effects of common forage conservation methods on the alkaloid content of grassland growths infested by marsh horsetail (Equisetum palustre L.)\",\"authors\":\"Dennis Melchert , Till Beuerle , Denny Wiedow , Jürgen Müller\",\"doi\":\"10.1016/j.anifeedsci.2024.115942\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The toxic sporophyte marsh horsetail (<em>Equisetum palustre</em> L.) increasingly infests moist and wet grasslands in Europe because of climate change, deeutrophication actions, and rewetting measures. Farmers, veterinarians, and authorities are insecure how to address this newly emerging situation, as only little information on toxin levels is available and information for no effect levels in livestock is based on outdated analytical methods. Hence, an important question is to what extent feed conservation measures could lead to a significant reduction in alkaloid levels. We investigated the capabilities of the two most common forage conservation methods, haying and ensiling, in reducing the initial alkaloid levels of fresh <em>E. palustre</em> contaminated biomass by field and lab-scale experiments simulating favourable and no favourable conservation conditions. Haying reduced the main alkaloid content up to 25% under ideal drying conditions only, probably due to friability losses of horsetail plant parts. However, under non-favourable weather conditions, alkaloid concentrations increased. Ensiling procedures reduced the main alkaloid content by less than 10%. There were no significant effects of ensilage duration or wilting degree on alkaloid content, despite a tendency toward a higher reduction in fresh silages. Common forage conservation methods have limited potential for degradation of the main marsh horsetail alkaloids. Our results give reason to consider other biomass utilization paths, such as composting or biomethanization for contaminated grassland growth instead of classical feed preparation.</p></div>\",\"PeriodicalId\":7861,\"journal\":{\"name\":\"Animal Feed Science and Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2024-03-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S0377840124000701/pdfft?md5=57fb192558a340de3b83ef39b6a67512&pid=1-s2.0-S0377840124000701-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Animal Feed Science and Technology\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0377840124000701\",\"RegionNum\":2,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"AGRICULTURE, DAIRY & ANIMAL SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Animal Feed Science and Technology","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0377840124000701","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRICULTURE, DAIRY & ANIMAL SCIENCE","Score":null,"Total":0}
Effects of common forage conservation methods on the alkaloid content of grassland growths infested by marsh horsetail (Equisetum palustre L.)
The toxic sporophyte marsh horsetail (Equisetum palustre L.) increasingly infests moist and wet grasslands in Europe because of climate change, deeutrophication actions, and rewetting measures. Farmers, veterinarians, and authorities are insecure how to address this newly emerging situation, as only little information on toxin levels is available and information for no effect levels in livestock is based on outdated analytical methods. Hence, an important question is to what extent feed conservation measures could lead to a significant reduction in alkaloid levels. We investigated the capabilities of the two most common forage conservation methods, haying and ensiling, in reducing the initial alkaloid levels of fresh E. palustre contaminated biomass by field and lab-scale experiments simulating favourable and no favourable conservation conditions. Haying reduced the main alkaloid content up to 25% under ideal drying conditions only, probably due to friability losses of horsetail plant parts. However, under non-favourable weather conditions, alkaloid concentrations increased. Ensiling procedures reduced the main alkaloid content by less than 10%. There were no significant effects of ensilage duration or wilting degree on alkaloid content, despite a tendency toward a higher reduction in fresh silages. Common forage conservation methods have limited potential for degradation of the main marsh horsetail alkaloids. Our results give reason to consider other biomass utilization paths, such as composting or biomethanization for contaminated grassland growth instead of classical feed preparation.
期刊介绍:
Animal Feed Science and Technology is a unique journal publishing scientific papers of international interest focusing on animal feeds and their feeding.
Papers describing research on feed for ruminants and non-ruminants, including poultry, horses, companion animals and aquatic animals, are welcome.
The journal covers the following areas:
Nutritive value of feeds (e.g., assessment, improvement)
Methods of conserving and processing feeds that affect their nutritional value
Agronomic and climatic factors influencing the nutritive value of feeds
Utilization of feeds and the improvement of such
Metabolic, production, reproduction and health responses, as well as potential environmental impacts, of diet inputs and feed technologies (e.g., feeds, feed additives, feed components, mycotoxins)
Mathematical models relating directly to animal-feed interactions
Analytical and experimental methods for feed evaluation
Environmental impacts of feed technologies in animal production.