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Comparative studies on tongue of Egretta ibis and Gallus
gallus
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Dalia A
Sabry |
Zoology Department,
Faculty of Science, Mansoura University, Mansoura, Egypt
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Abstract |
Avian
tongue is quite fit with the oral cavity
and possesses a characteristic beak-like structure adapted for feeding
habits. Tongue and beak structure of Egretta ibis and Gallus
gallus domesticus
were studied. Morphological studies revealed a correlation
between lingual structure and the type of food intake. Macroscopically,
Gallus species possessed triangular shaped tongue with distal transverse
conical papillae comparing with elongated slender-shaped structure of
Egretta ibis. The tongue
structure reflected the shape of beak region being slender, elongated
with pointed end in Egretta ibis compared with apparent short
beak and conical pointed bills in Gallus species. Lingual
keratinization and presence of taste buds are detected in Gallus
gallus domesticus in comparison with the Egretta ibis.
Lingual glands are characteristic of both species but more abundant in
Gallus gallus domesticus. Isoenzyme electrophoresis was done for
Lactic Dehydrogenase (LDH), Glucose 6-phosphate dehydrogenase (G6PDH),
Amylase and Carbonic Anhydrase (CAH). LDH, CAH and G6PDH isoenzymes are
denser in tongue of Egretta ibis reflecting more active role in
capturing food materials while amylase is denser in Gallus gallus
domesticus manifesting carbohydrate feeding habits. Finally the
author concluded that the studied avian species possessed varying
morphological, histological and assayed isoenzymes characteristic to
their feeding habits.
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Keywords:
Egretta; Gallus; tongue;
lingual glands; Alcian-PAS; silver methenamine nitrate;
isoenzyme electrophoresis |
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To cite this article:
Sabry DA,
2015.
Comparative studies on tongue of Egretta ibis
and Gallus gallus.
Res.
Opin.
Anim. Vet. Sci., 5(9): 375-382. |
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