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Chemical composition and physical characteristics of faeces in horses with and without free faecal liquid - two case-control studies

Lindroth, Katrin and Dicksved, Johan and Vervuert, I. and Müller, Cecilia (2022). Chemical composition and physical characteristics of faeces in horses with and without free faecal liquid - two case-control studies. BMC Veterinary Research. 18 , 2
[Research article]

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Abstract

Background Free faecal liquid (FFL) is a condition in horses characterised by two-phase (one solid and one liquid) separation of faeces. Causes of the condition are unknown, but disturbed hindgut fermentation has been suggested as it may alter biochemical composition and appearance of faeces in equines. However, information on faecal composition in horses with FFL is scarce. Faecal chemical composition (dry matter, osmolality, ash, macro minerals, short-chain fatty acids (SCFA) and pH) and physical characteristics (free liquid, sand, water holding capacity and particle size distribution) were compared in horses with (case) and without (control) FFL in two sub-studies. In sub-study I, faeces from 50 case-control horse pairs in Sweden and Norway were sampled in three sampling periods (SP1-SP3). In sub-study II, faeces from 32 case-control horse pairs in Germany were sampled on one occasion. Results In sub-study I, faecal concentration and proportion of lactic acid (of total short-chain fatty acids, SCFA) and water holding capacity was lower in case compared to control horses. Other variables (content of dry matter, ash, sodium, calcium, phosphorous, magnesium, sulphur, and concentrations of i-butyric, n-valeric and total SCFA, ammonia-N as proportion of total N, and pH) were similar in faeces from case and control horses. In sub-study II, all analysed variables were similar in faecal samples from case and control horses. Faecal particle size distribution was similar in case and control horses, but the proportion of larger particles (2 and 1 mm) were lower and proportion of smaller particles (< 1 mm) was higher in sub-study I compared to in sub-study II. Conclusions To the authors' knowledge, this is the first study to investigate faecal chemical composition and physical characteristics in horses with FFL. Case and control horses had similar total SCFA, pH and osmolality, indicating that hindgut fermentation was similar. However, small differences in concentration and proportion (of total SCFA) of lactic acid and water holding capacity of faeces were shown and are of interest for further studies of horses with FFL.

Authors/Creators:Lindroth, Katrin and Dicksved, Johan and Vervuert, I. and Müller, Cecilia
Title:Chemical composition and physical characteristics of faeces in horses with and without free faecal liquid - two case-control studies
Series Name/Journal:BMC Veterinary Research
Year of publishing :2022
Volume:18
Article number:2
Number of Pages:9
Publisher:BMC
ISSN:1746-6148
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 403 Veterinary Science > Clinical Science
Keywords:Equine, Free faecal water, Lactic acid, Particle size, SCFA, Water absorptive capacity
URN:NBN:urn:nbn:se:slu:epsilon-p-115688
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-115688
Additional ID:
Type of IDID
DOI10.1186/s12917-021-03096-1
Web of Science (WoS)000737982200004
ID Code:26802
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Department:(VH) > Dept. of Animal Nutrition and Management
Deposited By: SLUpub Connector
Deposited On:21 Jan 2022 13:11
Metadata Last Modified:21 Jan 2022 13:21

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