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versión On-line ISSN 0717-9502
Int. J. Morphol. v.26 n.4 Temuco dic. 2008
Int. J. Morphol., 26(4):883-886, 2008.
Morphology of an Infundibulum of the Oviduct of the Sexually Mature Hens
Morfología de un Infundibulum del Oviducto de las Gallinas Sexualmente Madurasvo
Penza State Agricultural Academy, Russian Federation.
SUMMARY: Studied functional morphology of an infundibulum oviduct of the hens in an age interval 150-540 days. As indicators of development the following parameters served: length, weight, diameter of a infundibulum, sizes epithelial cells, height and width folds of a túnica mucosa, histological structure of a wall of a infundibulum. The results show dynamical increase of investigated parameters with 150- till 360-day's age, with their subsequent decrease to 540-day's age.
KEY WORDS: Oviduct; Reproductive system,; Morphology; Layer.
RESUMEN: Se estudió la morfología funcional del infundibulum del oviducto de gallinas en un intervalo de edad de 150-540 días. Sirvieron como indicadores de desarrollo los siguientes parámetros: longitud, peso, diámetro del infundibulum, tamaño de las células epiteliales, altura y ancho de los pliegues de la túnica mucosa y estructura histológica de la pared del infundibulum. Los resultados muestran incrementos dinámicos de los parámetros investigados con 150 días hasta 360 días de edad, con su posterior disminución a los 540 días de edad.
PALABRAS CLAVE: Oviducto; Sistema reproductor; Morfología; Capa.
Morphology of birds genitals during development studied Traynis (1968), Litovchenko (1971), Vernerova & Burda (1985), Sharandak (1985, 1987, 1988), Jigalova & Pilipenko (1988), Czareva (1990), Kelany et al. (1992), Yoshimura & Ogawa (1998), Williams & Ames (2004).
As is known, the oviduct of the hens in a cranial-ventralis direction are following departments: infundibulum, magnum, isthmus, shell-gland and excretory section (vagina). The precise border is present only between magnum and isthmus. They are precisely differentiated from each other through circular transparent, without glands a cavity (Tekhver, 1965).
The cranial edge of infundibulum forms protrusion -it is lip of an infundibulum extended in dorsoventral direction (Romanoff & Romanoff, 1949). This department on the basis of morphofunctional features divide into an own infundibulum and it cervix (Richardson, 1935; Aitken & Johuston, 1963). The túnica mucosa infundibulum is having not glands, it is cover of longitudinal folds, reminding on the pits. Epithelium in this part of an infundibulum consists basically of ciliated cell. In the cervix of infundibulum occur glandulae tubariae, which are especially numerous in end of an infundibulum and partially mix up with groups glands of magnum.
Earlier reports (Krok, 1962; Fedorova, 1987) at the intensively in-lay hen the infundibulum has length 4-7 cm.
Structural organization and functional activity of bodies as a whole and oviduct in particular can be correctly understand only at exact knowledge macro-and micromorphology.
The difficult aspects of features of functional morphology of reproductive system of a home bird are in initial stages of the decisión. Therefore our attention was inverted on study of formation of oviduct of the hens, which further provides their high-grade efficiency.
MATERIAL AND METHOD
The material for research were the Lohmann Brown hens in 150-, 180-, 210-, 360-, 570- day's age. Object of research was served infundibulum of the oviduct. For research were selected 6 hens, which alive weight was within the limits of 5 % from average valué of alive weight of general set (n =100) in the certain age.
The hens were killed by decapitation. Anatomic dis section of the birds spent on a technique Komarov (1981). Preparation oviduct was spent under stereoscopic microscope MBS-9. The oviduct was excised. Were determined the borders of departments infundibulum and followed by weighing on weights of the stamp Adventurer AR-3130. Length of infundibulum was defined with the help wax sewing. Then a known site sewing measured by a ruler.
For histological observations licks of infundibulum fixing in liquid Carnoy. After fixing tissues were dehydrated and embedded in paraffin. Sections of 5-8 um thickness were stained with hematoxylin and eosin. Sections were examined under a light microscope Micros MS-300. On histological sections definedheight epithelial cell, height and width of a folds of túnica mucosa, relative área of structural elements of an infundibulum wall with the help of a technique of the point calculation by Glagolev (1941) with use graticule by Aftandilov.
Weight of a infundibulum in 150-day's age has made 0.87+0.14 gm, that makes 1.79 % from weight oviduct and 0,049 % from alive weight the chicken. Length of a infundibulum has made 9.0+0.7 cm or 11.6 % from total length oviduct. The diameter infundibulum is equal 7.0+0.7 cm.
The túnica mucosa of infundibulum oviduct of the 150-day's hens forms longitudinal folds. The túnica mucosa are cover cylindrical ciliary, which height 12.9+0.8 um. Height folds of a túnica mucosa in this department is fit with 116.1+13.4 um. Width folds of a túnica mucosa is equal 47.2+3.1 um. In the infundibulum of the 150-day's hens on a share of a túnica mucosa it is account for 64.47+1.11 %, muscular 27.34+4.22 %, serous 8.19+0.70 %. In structure of a túnica mucosa the layer epithelial occupy 26.95+1.28 %, connective tissue membrane 35.14+1.13 %, glandular structures 2.38 %.
At 180-day's age weight of a infundibulum has made 0.87+0.16 gm that makes 1.66 % from weight of oviduct and 0.05 % from alive weight a bird. The length of a infundibulum has made 9.2+0.2 cm, that makes 10.77 % from length of the oviduct. The diameter of a infundibulum has made 7.8+0.4 cm.
Height layer epithelial of a túnica mucosa of a infundibulum in this age interval has made 18.5+0.6 um. Height folds of a túnica mucosa of a infundibulum has increased by 2 times and has made 234.2+15.7 um. Width folds of a mucous environment has increased more than in 2 times and has folds 105.5 + 10.9 um. In the infundibulum of oviduct of the 180-day's hens on a share of a túnica mucosa it is account 49.13+2.74 %, muscular 43.07+8.64 %, serous 7.79+0.80 %. In the structure a túnica mucosa of a infundibulum of oviduct the layer epithelial occupy 20.99+4.61 %, connective tissue membrane 25.76+2.70 %, on a share of glandular structures 2.38+0.92 %.
At210-day's age weight of a infundibulum 1.0+0.3 gm, that makes 1.68 % from weight of oviduct and 0.05 % from alive weight of the hens. Length of a infundibulum has 9.7+0.8 cm, that makes 10.84 % from length of oviduct. A diameter of a infundibulum has 8.2+0.2 cm. Height of epithelium of a túnica mucosa of a infundibulum oviduct is equal 16.2+0.8 um. Height folds of a mucous environment of a infundibulum has increased almost in 4 times and has made 921.6+35.4 um. Width folds of a túnica mucosa of a infundibulum of the oviduct has increased in 2.2 times and has made 230.8+9.8 um. On a share of a túnica mucosa it is account 75.92+2.82 %, muscular 16.20+5.43 % and serous 7.87+4.86 %. In a the túnica mucosa the layer epithelial occupy 39.81+2.84 %, connective tissue membrane 31.94+4.51 %, on a share of the glandular structures it is account 4.17+1.12%.
At 360-day's age weight of a infundibulum has increased on 0.1 gm and has made 1.1+0.1 gm, or on 1.53 % and 0.04 %, accordingly, from weight of oviduct and alive weight of the hens. Length of a infundibulum has increased in comparison with 210-day's age on 0.2 cm and is equal 9.9 cmor 11.1 % from length of oviduct. The diameter of a infundibulum has made 9.0+0.7 cm. Height epithelial cell makes 16.9+0.7 um. Height folds of a túnica mucosa is equal 946.4+51.3 um. Width folds of a túnica mucosa has made 251.4+11.3 um. On a share of a túnica mucosa it is account 64.32+5.37 %, muscular 33.12+1.51 %, serous 2.56+0.11 %. In the structure of a túnica mucosa on a share epithelium it is account 25.72+1.21 %, connective tissue membrane 30.5+2.45 %, the glandular structures occupy 8.1+0.38 %.
Weight of the infundibulum 540-day's age is equal 1.4+0.1 gm, that makes 1.62 % from oviduct weight and 0.08 % from alive weight a bird. Length of a infundibulum is equal 10.7+0.5 cm, that makes 12.4 % from total length of oviduct. A diameter of a infundibulum has 9.7+0.4 cm. Height of epithelium of a túnica mucosa of a infundibulum has made 10.0+0.5 um. Height folds of a túnica mucosa has 146.8+16.2 um. Width of folds has made 33.8+2.1 um. On a share of a túnica mucosa it is account 65.88+2.16 %, muscular 26.75+1.27 %, serous 7.38+0.61 %. In a túnica mucosa of a infundibulum the layer epithelial occupy 24.37+1.90 %, connective tissue membrane 36.35+2.40 %, on the glandular structures it is account 5.16+1.20%.
Our researches cover two periods of postnatal ontogénesis of the oviduct: 1) period "the intensive development of oviduct" and 2) period "the stable functioning of oviduct".
The period of intensive development of oviduct begins with 150-day's age and lasts up to 180-day's. The given period is characterized by intensive increase of weight, length and thickness of a wall of oviduct, differentiation of oviduct on departments. The second period proceeds from 210-day's age to 540-day's is characterized by a stable morphofunctional condition of oviduct.
During the period 150-540 days length of a infundibulum has increased on 18,9 %. Relative length of a infundibulum during the same period insignificantly changed thus in 150-day's age this parameter is fixed by greatest. Least relative length of a infundibulum is marked in 210-day's age. It is necessary to note, that dynamics of length of a infundibulum changes synchronously with total length of oviduct in the investigated period.
Analyzing dynamics of weight of a infundibulum we shall note, that this parameter for the analyzed period has increased by 61 %, while weight itself oviduct, for the same interval of time, has increased by 76 %. The greatest gain of weight of a infundibulum is marked during 360-540 days - 27 %. As for to relative weight of a infundibulum to total weight of oviduct, the greatest meaning of this parameter is fixed to 150-day's age. Least relative weight of a infundibulum has appeared in 360-day's age.
Analyzing dynamics of relative weight of a infundibulum to alive weight of the hens we shall note, that the least meaning of this parameter in 360-day's age, and maximal in 540-day's, and in an interval 360-540 days relative weight of a infundibulum to alive weight of the hens has increased in 2 times.
Histological research of a infundibulum have shown, that the túnica mucosa of a infundibulum thin-wall, make up fine folds and cover by ciliary cylindrical epithelium. Epithelial cells the infundibulum can be divided into two groups: ciliary and mucous (goblet cells). The sizes epithelial cells for the period of research change within the limits of 10-18 |J,m, that is predetermined by a functional condition of a organ as a whole and infundibulum in particular.
In a foundation folds of a infundibulum are lie the friable connecting tissue, rich by blood vessels. Analyzing changes of height folds of a túnica mucosa, it is necessary to note, that it, since 150-day's till 360-day's age is intensively increased, and greatest up of this parameter occurs during 180-210 days, when height folds has increased almost in 4 times. In the following age period 210-360 days the meaning of this parameter is stabilized, with the subsequent prompt reduction of height folds of a túnica mucosa to 540-day's age up to a level of a beginning oviposition (150 days).
As for to width folds of a túnica mucosa, the changes of meanings of this parameter have the same tendency, as well as height folds. Namely, during 150-210 days width folds has increased almost in 5 times and to 540-day's age corresponded to meaning of a beginning of research.
The analysis of structure of a wall of a infundibulum shows, that the greatest place, for the period of research, is occupy by a túnica mucosa, on its share it is account on the average 64 %. On a share muscular and serous of environments it is account 29 % and 7%, accordingly. Muscular the layer of a infundibulum is submitted by f asciculi smooth muscle cell. Serous tunic thin has folds, blood vessels and nervous plexuses.
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Correspondence to: Khokhlov Román Yurievich
Penza State Agricultural Academy, Russian Federation 4400014 st. Botanicheskaja, 30 Penza, RUSSIA. Telephone: (8412)699139 (8412)629390, Cell phone: 89063982333. Email: firstname.lastname@example.org
Received: 01-09-2008 Accepted: 02-10-2008