EJPAU 2013. Kulawik M. , Godynicki S. , Frąckowiak H. LIGHT MICROSCOPIC OBSERVATIONS OF VALLATE PAPILLAE IN PRENATAL AND POSTNATAL PERIODS OF RABBIT (<i>ORYCTOLAGUS CUNICULUS F. DOMESTICA</i>)

Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

2013
Volume 16
Issue 3

Topic:

Animal Husbandry

ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES

Kulawik M. , Godynicki S. , Frąckowiak H. 2013. LIGHT MICROSCOPIC OBSERVATIONS OF VALLATE PAPILLAE IN PRENATAL AND POSTNATAL PERIODS OF RABBIT (ORYCTOLAGUS CUNICULUS F. DOMESTICA), EJPAU 16(3), #02.
Available Online: http://www.ejpau.media.pl/volume16/issue3/abs-02.html

LIGHT MICROSCOPIC OBSERVATIONS OF VALLATE PAPILLAE IN PRENATAL AND POSTNATAL PERIODS OF RABBIT (ORYCTOLAGUS CUNICULUS F. DOMESTICA)

Mirosława Kulawik¹, Szymon Godynicki², Hieronim Frąckowiak¹
¹ Institute of Zoology, Department of Animal Anatomy, Poznań University of Life Sciences
² Department of Histology and Embryology, Institute of Zoology, Poznań University of Life Sciences

ABSTRACT

This study was conducted on 87 tongues of the rabbits Oryctolagus cuniculus
f. domestica,of both sexes, which were collected at day 15, 18, 20, 22 and
26 of prenatal development (E) and at day 1, 15 and 30 of postnatal period (P).
Samples of lingual tissue with the vallate papillae were prepared for observation
under a light microscope (LM). The Masson-Goldner staining or HE were applied
in this study. Light microscopic study revealed that the first primordia of vallate
papillae were thickenings of the epithelium. The thickenings were observed in
the period from E15 to E20. Starting from E22 the lamina propria of mucosa formed
the body of developing vallate papillae. It was surrounded by a circular primary
epithelial streak. From E26 the epithelium covering primordia of vallate papillae
grew into the body of papillae, forming secondary epithelial streaks. The furrow
of vallate papillae started to form from E22. The taste buds were observed from
P1 in places where the primary epithelial streak cleaved, forming the furrow
of the papilla. They were identified both in the epithelium covering the body
of papilla and in the epithelium of the outer wall from the side of the furrow.
Occasionally taste buds were observed in the epithelium covering the vallate
papillae dorsally, where they accompany openings of excretory ducts of lingual
glands. The epithelium covering the developing vallate papillae changed in the
investigated periods from a three-layer epithelium into nonkeratinized stratified
squamous epithelium.

Key words: Light microscope, morphogenesis, rabbit, tongue, vallate papillae.

Mirosława Kulawik
Institute of Zoology, Department of Animal Anatomy, Poznań University of Life Sciences
ul. Wojska Polskiego 71 C
60-625, Poznań
tel: 48 61 8487625
email: kulawik@au.poznan.pl

Szymon Godynicki
Department of Histology and Embryology, Institute of Zoology, Poznań University of Life Sciences
ul. Wojska Polskiego 71 C
60-625, Poznań
email: gody@up.poznan.pl

Hieronim Frąckowiak
Institute of Zoology, Department of Animal Anatomy, Poznań University of Life Sciences
ul. Wojska Polskiego 71 C
60-625, Poznań
email: hierofro@up.poznan.pl

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.