scholarly journals Development of mechanical papillae of the tongue in the domestic goose (Anser anser f. domestica) during the embryonic period

PROTOPLASMA ◽  
2015 ◽  
Vol 254 (1) ◽  
pp. 147-160 ◽  
Author(s):  
Kinga Skieresz-Szewczyk ◽  
Hanna Jackowiak
Keyword(s):  
Anser Anser ◽  
Embryonic Period

scholarly journals Unique pattern of histogenesis of the parakeratinized epithelium on lingual prominence in the domestic goose embryos (Anser anser f. domestica)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kinga Skieresz-Szewczyk ◽  
Hanna Jackowiak ◽  
Marlena Ratajczak
Keyword(s):  
Adipose Tissue ◽  
Anser Anser ◽  
Protective Function ◽  
Unique Pattern ◽  
Embryonic Period ◽  
Intensive Formation ◽  
Characteristic Part ◽  
Endodermal Origin ◽  
Multilayered Epithelium ◽  
Medial Area

AbstractA triangular lingual prominence (LP) is a characteristic part of the tongue in Anseriformes containing adipose tissue. The parakeratinized epithelium (PEp) covers the LP. Studies aimed to describe the histogenesis of PEp during the process of the intensive formation of the LP in domestic goose during embryonic period and to determine the structural readiness to perform a protective function. The study were conducted by using LM, SEM and TEM technique. The results revealed that on day 16th the undifferentiated epithelium of LP transformed into the typical avian multilayered epithelium. Contrary to pattern of histogenesis of parakeratinized epithelium on the lingual body, on the medial and lateral areas of the elongating and bulging LP were formed epithelial furrows. Which around 20th day, on lateral areas of LP deepened up to half of epithelium, whereas on the medial area began to fade. The ultrastructure of cells lying in furrows indicated progressive apoptosis-like degeneration. On the 25th day, shallow furrows were only present on lateral areas, where bulging of LP was continued. Whereas the epithelium on medial area started cornification by the accumulation of cytokeratin fibers. Lack of the periderm during the development of the PEp of the LP indicated its endodermal origin.

Current Status of Anserinae Wintering in Azov-Black Sea Region of Ukraine

2019 ◽  
Vol 53 (4) ◽  
pp. 297-312
Author(s):  
Yu. O. Andryushchenko ◽  
V. S. Gavrilenko ◽  
V. A. Kostiushyn ◽  
V. N. Kucherenko ◽  
A. S. Mezinov ◽  
...  
Keyword(s):  
Black Sea ◽  
Current Status ◽  
Anser Anser ◽  
Scientific Publications ◽  
Climate Conditions ◽  
Black Sea Region ◽  
Chen Caerulescens ◽  
Branta Bernicla ◽  
The North ◽  
Different Seasons

Abstract In the article is analyzed own field data of the authors and scientific publications on the wintering of Anserinae in the Azov-Black Sea region of Ukraine in 1900–2017, but the main data was obtained in frame of international mid-winter counts (IWC) in 2005–2017. It was found that 9 species of Anserinae occur in this region during the different seasons of the year: Anser anser — nesting, wintering and migrating; Rufibrenta ruficollis, A. albifrons, A. erythropus, A. fabalis — migrating and wintering; Branta canadensis, Branta leucopsis, Branta bernicla, Chen caerulescens — vagrant or birds which flew away from captivity (zoo etc.). Eulabeia indica — is possible vagrant species. The most numerous wintering species is A. albifrons, common — Rufibrenta ruficollis, not numerous — Anser anser, the other species are not met annually and registered in a very small number. There was almost tenfold drop in number of wintering geese in the Azov-Black Sea region of Ukraine during the period of counts. The main reasons of such reducing of geese amount are the followwing: weather and climate conditions, changes in the forage acessibility, hunting and poaching pressure, poisoning as a result of deratization of agricultural lands, and from 2014 — the militarization of the Syvash area and stop of water supplying of Crimea through the North Crimean channell. It is likely that the factors mentioned above led to relocating of wintering areas of Anserinae, and resulted in decreasing of their amount in this region.

FIBROSSARCOMA CRANIANO EM GANSO-COMUM (Anser anser)

2020 ◽  
Author(s):  
Gabriela da Silveira Capriolli ◽  
William Lins Batista ◽  
Carolina Silveira Braga ◽  
Marcelo Meller Alievi
Keyword(s):  
Anser Anser

Видовой состав фауны эндопаразитов диких птиц отряда Пластинчатоклювые (Anseriformes) в регионе Северного Кавказа

2015 ◽  
pp. 36-38
Author(s):  
Вагид Шарапудинович Пашаев ◽  
Анатолий Мурашевич Биттиров ◽  
Црай Бесланович Кагермазов
Keyword(s):  
Anser Anser ◽  
Anas Crecca ◽  
Mergus Merganser ◽  
Anas Strepera ◽  
Anser Erythropus

В статье приведены сведения о видовом составе эндопаразитофауны у семи видов птиц отряда Пластинчатоклювые (Anseriformes) в регионе Северного Кавказа. У видов Anser anser L., Anser erythropus, Anas platyrhynehos L., Anas strepera L., Anas crecca L., Tadorna tadorna L., Mergus merganser L. определено 13 видов рода эймерия, 116 видов био- и геогельминтов, в том числе: Trematoda — 87 видов, Cestoda — 14 видов, Nematoda — 10 видов, Acantocephala — 5 видов с тенденцией формирования в организме птиц простых и сложных многокомпонентных паразитокомплексов. Исследования проводили в 2006 – 2014 гг. на базах ФГУ «Эльбрусский национальный парк», ФГУ «Кабардино-Балкарский государственный высокогорный заповедник», в 12 охотничьих хозяйствах и участках Кабардино-Балкарской Республики и Республики Дагестан на диких и синантропных птицах разного возраста. Паразитологическим исследованиям подвергнуты семь видов диких птиц отряда Пластинчатоклювые (всего 660 особей): серый гусь Anser anser L. — 110 особей, малый белолобый гусь Anser erythropus — 95 особей, обыкновенная кряква Anas platyrhynehos L. — 216 особей, серая утка Anas strepera L. — 100 особей, чирок-свистунок Anas crecca L. — 45 особей, пеганка Tadorna tadorna L. — 76 особей, большой крохаль Mergus merganser L. — 18 особей. Для изучения видовой структуры эндопаразитов применяли методы полного и неполного гельминтологического вскрытия. Использованы статистические методы дисперсионного анализа; вычисления выполнены с помощью программы Statistica 6.0.

BIOLOGICAL LAWS OF DEVELOPMENT OF THE FETUS IN CATTLE IN THE EMBRYONIC PERIOD OF ONTOGENESIS

2018 ◽  
Vol 6 (3) ◽  
pp. 83-85
Author(s):  
N.G. Fenchenko ◽  
◽  
N.I. Khairullina ◽  
D.H. Shamsutdinov ◽  
◽  
...  
Keyword(s):  
Embryonic Period ◽  
Biological Laws

Virtual ultrasound embryo autopsy – myth or reality? Part 1

2017 ◽  
Author(s):  
A.Yu. Blinov
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Prenatal Diagnosis ◽  
Medical Imaging ◽  
Embryonic Development ◽  
Human Embryos ◽  
Review Of Literature ◽  
Embryonic Period ◽  
New Methods ◽  
Central Nervous System Defects

A review of literature data on the study of human embryos using new methods of medical imaging is given. The possibility of prenatal diagnosis of severe central nervous system defects has been demonstrated already in the embryonic period at 8–10 weeks of gestation or at the age of 16 to 23 stages of the embryonic development period

Iron overload during the embryonic period develops hyperactive like behavior and dysregulation of biogenic amines in Drosophila melanogaster

2021 ◽  
Vol 475 ◽  
pp. 80-90
Author(s):  
Márcia Rósula Poetini ◽  
Elize Aparecida Santos Musachio ◽  
Stífani Machado Araujo ◽  
Francielli Polet Almeida ◽  
Mustafa Munir Mustafa Dahleh ◽  
...  
Keyword(s):  
Drosophila Melanogaster ◽  
Iron Overload ◽  
Biogenic Amines ◽  
Embryonic Period
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