Journal
JOURNAL OF POULTRY SCIENCE
Volume 59, Issue 3, Pages 286-290Publisher
JAPAN POULTRY SCIENCE ASSOC
DOI: 10.2141/jpsa.0210132
Keywords
chemosensory perception; chicken; herbs; TRPA1
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Funding
- JSPS KAKENHI [26850207]
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This study discovered chickens' chemosensory perception of herbal compounds, including eugenol and thymol, suggesting that chickens have a functional TRPA1 channel.
The pungency induced by spices and herbs plays an important role in food choice and appetite, and it is suggested that adding spices and herbs to feed as natural alternatives to antibiotics has beneficial effects in poultry farming. However, our knowledge of the chemosensory perception of herbal compounds in chickens is limited. Transient receptor potential ankyrin 1 (TRPA1) is involved in the sensory perception of various herbal compounds. Here, we performed calcium imaging and electrophysiological analyses using cells transiently expressing chicken TRPA1 (cTRPA1) and identified two novel cTRPA1 ligands???eugenol and thymol. In a behavioral assay, chickens responded to cTRPA1 ligands, including eugenol, thymol, cinnamaldehyde, carvacrol, and allyl isothiocyanate. These results provide evidence that chickens have a functional TRPA1 channel and chemosensory perception of various herbal compounds.
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