Dry matter concentration, particle size distribution and sand presence in faeces from horses with and without colic.

This research aimed to analyze the fecal matter of horses suffering from colic and healthy ones to identify differences in dry matter concentration, particle size distribution, and sand presence. The results showed no significant difference between colic and non-colic groups, but horses diagnosed with an unknown cause of colic did have marginally larger particles within their feces.

Methodology

• The study was conducted on a population of 148 horses, with 74 each in the colic and control groups. These horses were all admitted to an animal hospital.
• Fecal samples were collected from all horses and subsequently subjected to analysis.
• Three major faecal characteristics were under scrutiny: dry matter concentration, particle size distribution (measured by wet sieving), and the presence of sand (identified using a sand sedimentation test).
• Additionally, data on each horse’s breed, age, gender, and feeding routine were collected and analyzed via Chi-square (χ) tests.

Comparative Analysis

• The researchers used a statistical procedure called a one-way ANOVA to compare the faecal dry matter concentration, particle size distribution, and sand score in colic and non-colic horses, and between horses with varying types of colic.
• The breed, age, gender, and basic feeding variables proved to be comparable in both the colic and non-colic groups, leading to a fair comparison between the two.
• There were no statistically noteworthy differences found in the faecal dry matter concentrations, particle size distributions, or sand scores between colic and non-colic horses.

Finding on Colic Sub-Groups

• Horses with an unidentified colic cause had a relatively higher proportion of larger particle sizes (>0.5 and <1.0 mm) than horses suffering from colic due to known reasons like impaction in the caecum or colon, torsion or gas buildup.
• However, the size difference was marginal and deemed insignificant for biological considerations.
• The faecal dry matter concentration and sand scores were also consistent across horses with different colic types.

Conclusion and Further Scope

• The understanding of the composition of particles of various sizes in the feces of horses can enhance current knowledge of the rate of passage of digesta (the content present in the digestive tract) in both colic and non-colic horses.
• This new understanding may help in the development of preventive measures for specific kinds of colic.