Journal for Veterinary Medicine, Biotechnology and Biosafety
Volume
10, Issue 1, March 2024, Pages 7–13
ISSN 2411-3174 (print version) ISSN 2411-0388
(online version)
MORPHOLOGICAL FEATURES OF THE FERAL
PIGEON’S (COLUMBA LIVIA
F. URBANA) DIGESTIVE SYSTEM
Кolomak I. O.
Poltava State Agrarian
University, Poltava, Ukraine, e-mail: kolomak-ihor@ukr.net
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PDF (print version)
Citation for print version: Кolomak, I. O.
(2024) ‘Morphological features of the feral pigeon’s (Columba livia f. urbana) digestive system’, Journal for Veterinary Medicine, Biotechnology and
Biosafety, 10(1), pp. 7–13.
Download
PDF (online version)
Citation for online version: Кolomak, I. O.
(2024) ‘Morphological features of the feral pigeon’s (Columba livia f. urbana) digestive system’, Journal for Veterinary Medicine, Biotechnology and
Biosafety. [Online] 10(1), pp. 7–13. DOI: 10.36016/JVMBBS-2024-10-1-2.
Summary. Peculiarities of the morphological structure of the
feral pigeon’s (Columba livia f. urbana) digestive system have been established. In the
process of evolution, the digestive system has acquired certain anatomical
changes that perform adaptive mechanisms for flying and egg-laying.
In pigeons, the rostral part of the skull is represented
by a beak consisting of an upper bill (maxilla) and gnathotheca (mandible)
part. Due to the absence of a palatal fold, the digestive tract begins with the
oropharynx, which lacks lips, teeth, and gums. The gorge is present in both
sexes, consists of the right and left parts, and performs the function of
accumulating fodder and secreting gorge milk, which is fed
to the young through regurgitation. The mucous membrane of the esophagus forms
longitudinal folds. There is a large number of digestive glands in the
proventriculus. The cavity of the muscular stomach contains gastroliths, which
act as teeth, ensuring grinding of food mass. The small intestine consists of
the duodenum and ileum, which are joined by the
mesentery and form three loops. The mucous membrane is
developed, represented by numerous crypts that ensure the absorption of
nutrients. The large intestine is represented by the paired
rectal cecum and the rectum. The mucous membrane of the thick intestine is represented by leaf-like villi. The muscle layer is the
most developed, myocytes are located in circular and longitudinal directions,
forming folds
Keywords: anatomy,
histology, synanthropic pigeons
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