Faecal Silica Levels in Large Herbivores and Their Teeth
Author Information
Author(s): Hummel Jürgen, Findeisen Eva, Südekum Karl-Heinz, Ruf Irina, Kaiser Thomas M., Bucher Martin, Clauss Marcus, Codron Daryl
Primary Institution: Institut für Tierwissenschaften, Universität Bonn
Hypothesis
Hypsodonty is reflected in the silica content of faeces.
Conclusion
The study found a strong positive correlation between faecal silica levels and hypsodonty in large African herbivores.
Supporting Evidence
- Faecal silica values ranged between 20 and 146 g kg−1 DM in ruminants.
- Hypsodonty increased across species with increasing C4 intake.
- The correlation between faecal silica and hypsodonty was significant in both dry and wet seasons.
- Faecal silica content reflects proportions of browse and grass in the diet.
Takeaway
This study shows that the amount of silica in the poop of big plant-eating animals can tell us about their teeth and how they eat.
Methodology
Faecal samples were collected from various herbivore species, and silica content was quantified using acid detergent insoluble ash.
Limitations
The study may not account for all factors influencing tooth wear and hypsodonty.
Participant Demographics
The study included 15 species of ruminants and hindgut fermenters from Africa.
Statistical Information
P-Value
p<0.0005
Statistical Significance
p<0.0005
Digital Object Identifier (DOI)
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