Daily Rhythm of Urea in Sheep
Author Information
Author(s): Piccione Giuseppe, Foà Augusto, Bertolucci Cristiano, Caola Giovanni
Primary Institution: Università di Messina
Hypothesis
The study aimed to investigate the rhythmic pattern of salivary and serum urea concentrations in sheep.
Conclusion
In sheep, both salivary and serum urea concentrations showed daily fluctuations influenced by feeding times.
Supporting Evidence
- Serum and salivary urea peaked during the light phase.
- Daily mean levels of urea were significantly higher in serum than in saliva.
- The study used a non-invasive method to measure urea concentrations.
Takeaway
Sheep have different levels of urea in their saliva and blood throughout the day, which changes based on when they eat.
Methodology
Six female sheep were sampled every 4 hours for 48 hours, and urea concentrations were measured using a UV spectrophotometer.
Limitations
The study cannot exclude the possibility that urea fluctuations were influenced by feeding times.
Participant Demographics
Six 3-year-old female sheep, clinically healthy, non-pregnant, and non-lactating.
Statistical Information
P-Value
p < 0.0001
Confidence Interval
(4.56–5.67) for serum urea on Day 1
Statistical Significance
p < 0.0001
Digital Object Identifier (DOI)
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