气候变化领域集成服务门户(CCPortal): The effect of the rumen washing mechanism in sheep differs with concentration and size of abrasive particles

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DOI	10.1016/j.palaeo.2020.109728
	The effect of the rumen washing mechanism in sheep differs with concentration and size of abrasive particles
	Hatt J.-M.; Codron D.; Ackermans N.L.; Martin L.F.; Richter H.; Kircher P.R.; Gerspach C.; Hummel J.; Clauss M.
发表日期	2020
ISSN	0031-0182
卷号	550
英文摘要	Measures of tooth wear have widespread use as proxies in palaeobiological reconstructions. In order to apply these proxies, an understanding of potential influence factors on wear is important. The processes during the digestion in the ruminant organism lead, possibly inadvertently, to a washing of material before it is regurgitated for rumination chewing. Therefore, ruminants might experience less tooth wear from external abrasives such as dust and grit, which can be washed off, compared to nonruminant herbivores. Details of the washing mechanism, including its efficiency in relation to abrasive size, have not been explored so far. Here, we describe the location and quantity of external abrasives in the gastrointestinal tract of sheep fed seven diets containing external silica abrasives varying in concentration (0, 4, and 8%) and size (4, 50, and 130 μm). As typical for ruminants, external abrasives accumulated mainly in the fourth stomach section, the abomasum. Compared to the diet, the dorsal rumen contents – from where material for regurgitation and rumination is recruited – were depleted of external abrasives for the 130 μm silicates, and for the 8% concentration of 50 μm silicates, but not for the 4 μm silicates or the 4% concentration of 50 μm silicates. These results suggest that the rumen washing mechanism is probably more protective against abrasion from grit and sand, and potentially less efficient against fine dust. © 2020 Elsevier B.V.
英文关键词	Chewing; Grit; Phytoliths; Ruminant; Rumination; Tooth wear
语种	英语
scopus关键词	abrasion; concentration (composition); digestion; dust; paleobiology; reconstruction; sheep; tooth; wear; Ovis aries
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150496
作者单位	Clinic for Zoo Animals, Exotic Pets and Wildlife, Vetsuisse Faculty, University of Zurich, Winterthurerstr. 260, Zurich, 8057, Switzerland; Department of Zoology and Entomology, University of the Free State, PO Box 339, Bloemfontein, 9300, South Africa; Clinic for Diagnostic Imaging, Vetsuisse Faculty, University of Zurich, Winterthurerstr. 258c, Zurich, 8057, Switzerland; Clinic for Ruminants, Food Animal Department, Vetsuisse Faculty, University of Zurich, Winterthurerstr. 260, Zurich, 8057, Switzerland; Ruminant Nutrition, Department of Animal Sciences, University of Goettingen, Kellnerweg 6, Goettingen, 37077, Germany
推荐引用方式 GB/T 7714	Hatt J.-M.,Codron D.,Ackermans N.L.,et al. The effect of the rumen washing mechanism in sheep differs with concentration and size of abrasive particles[J],2020,550.
APA	Hatt J.-M..,Codron D..,Ackermans N.L..,Martin L.F..,Richter H..,...&Clauss M..(2020).The effect of the rumen washing mechanism in sheep differs with concentration and size of abrasive particles.Palaeogeography, Palaeoclimatology, Palaeoecology,550.
MLA	Hatt J.-M.,et al."The effect of the rumen washing mechanism in sheep differs with concentration and size of abrasive particles".Palaeogeography, Palaeoclimatology, Palaeoecology 550(2020).