Morphological study of laying and non-laying female genital system in peacock (Pavo cristatus)

Although the avian female genital system has been studied in several birds, it's yet not been done regarding peacocks. Thus, this study approved recognizing its morphological architecture of it during laying and non-Laying periods with blood supply. The left ovary during active season showed three types of follicles: small, medium, and large; the same in non-laying with less measurement. The left oviduct was more convoluted in laying than in non-laying; its length is double that of non-laying. Both included six regions. The infundibulum had two parts; funnel and neck. The funnel internally showed a translucent rough surface, with not very well noTable folds changed into obviously distinguished folds towards the neck. Neck: very low longitudinal mucosal folds started to increase in depth towards the magnum, which was the longest and the most highly coiled part, compared to other regions with huge mucosal folds of wavy borders separated by indentations. Isthmus appeared shorter, thinner, and less coiled, with longitudinally mucosal folds straighter and lower than magnum; however, they were more prominent in laying than in non-laying. The uterus was the thickest and the widest region, its mucosal folds arranged longitudinally, intersected by 4-5 transverse furrows, in non-laying it was less thickness and size with the same arrangement. The (UVJ) in both laying and non-laying peahens is a very short region connecting the uterus into the vagina and protruding above lumens, characterized by numerous short mucosal folds. The vaginal mucosal folds were continuation to those of the junction region and appeared whitish and longitudinally oriented

HISTOLOGICAL STUDY 0F THE OVARY AND INFUNDIBULUM OF TURKEY HEN Meleagris Gallopavo

The present study showed that the ovary of adult turkey hens Meleagris Gallopavo is covered with simple cuboidal epithelium (germinal epithelium). Internally, two distinct regions can be distinguished. The cortex, a peripheral region contains a numerous follicles in different stages of development that are classified as primordial, primary, secondary and tertiary follicles. The primordial follicle appear distributed to the surface of sub capsular cortex surrounded by a single layer of follicular cells contains a small oocyte, showing a cytoplasm of filamentous aspect. The primary follicle appear distributed in the periphery and middle of the ovarian cortex contains and oocyte that shows an homogeneous cytoplasm with fine granules

ANATOMICAL STUDY OF THE TRACHEAL CAST AND LUNG IN LOCAL BREED CATS Felis Cactus Domesticus.L.

Cast technique includes ten cats (5 male, 5 female) used the polymerizing resin (cold acrylic) to study the bronchial tree and blood vessels. the examination of bronchial tree of the cats (felis catus) Lung is done by using cold resin in order to prepare cast specimens. The diameter of right principal bronchi of cats mean (7.34 mm± 0.36) and diameter of left principal bronchi means (6.07mm 0.36). The right principal bronchi large than left principal. The air flow in right Lung faster than the left. This result is supported by the researcher .These results are obtained from the cast model showing that the pulmonary trunk divides into right and left pulmonary arteries after arising from the right ventricle of heart. The right pulmonary artery the diameter about (4.18 mm) and diameter of left pulmonary artery about (3.40 mm) that the right pulmonary larger than the left pulmonary arter

HISTOMORPHOLGICAL STUDY OF CILIARY BODY AND CILIARY PROCESS IN ONE HUMPED CAMEL (CAMELUS DROMEDARIUS)

Ten eyes (5 right + 5 left ) of five healthy one humped camels (3 male +2 females) aged between (8-12) years old, brought from Shulla slaughter house at Baghdad governorate -Iraq. The study showed that the ciliary body located at the base of iris inside the eye ball (Topographically at limbus) in histological section of eye ball appeared as triangular area.The microscopical examination observed the ora ciliaris retinae ( line of ending Retinae and choroid ) this site represent limits and indicate the area of gradually changed choroid to ciliary body, which posses (111-115) ciliary prosses act as site of zonulary ligament attachment. That important in modification of eye lens during visio

Histomorphological study of the spleen in indigenous Gazelle (Gazella subgutturosa)

     The study aimed to investigate the anatomical and histomorphometrical features of spleen in gazelle. To achieve this goal, spleens of 7 animals were used. The gross aspect of the study revealed that the spleen of gazelle appeared dark brown in color with elliptical shape and was situated at the left lateral surface of the rumen. It occupied the area extended from the 8th rib to 11th rib. Length and width of the spleens were calculated and the mean were 7.94±0.1, 5.88±0.2 respectively. There were three ligaments connected the spleen with adjacent structures, namely splenogastric, splenorenal and splenophrenic. The blood supply of the spleen was studied using X-rays and resin injection methods. The splenic artery was divided into three primary branches, each one subdivided into two secondary branches. The latter branched into tertiary branches which were distributed all over the splenic parenchyma. Microscopic findings showed that the capsule of spleen in gazelle was composed from of two layers, the outer one made of mainly of dense connective tissue; whereas the inner layer of capsule consisted of connective tissue fibers in addition to abundance of smooth muscle fibers interweaving among them. The total mean thickness of the capsule was 210.51+8.3 µm. The splenic parenchyma in gazelle consisted of white pulp represented by lymphoid follicles with their marginal zones and periarterial lymphatic sheath while the red pulp represented by splenic cords and sinusoids. The area of white pulp in the gazelle comprised about 9.6% of the spleen parenchyma. Red pulp composed mainly from cords of connective tissue and small sinuses or sinusoids filled with blood cellular element which extended among these cords and was lined by flattened endothelial cells with relatively large spaces or slits between them. The sinusoids were found to be lymphocytes, reticular, plasma, macrophages and occasional megakaryocytes whereas the megakaryocyte appeared large with acidophilic cytoplasm and dark elongated multilobated nucleus. This research work was performed in order to establish the basic histomorphological information helpful for the veterinary medical practice and veterinary surgions to developing their work on gazelle like designing the approach of some surgical operations like spleenectomy or any surgical entrance may be needed in these animal species.</jats:p

58 Histomorphological Study of Epididymis, ductus deferens and phallus in Adult Male Guinea Fowl (Numida meleagris)

This study was conducted to investigate the anatomical, histological characteristic features of epididymis, ductus deferens and phallus of male guinea fowl (Numidia meleagris ). Fifteen healthy male guinea fowl aged between 18-24 months, weighing 1280 - 1405 gram were used in current study which brought from local market in Baghdad governorate. The epididymis of guinea fowl consisted from rete testis, efferent ductless, connecting duct and epididymal duct. The study revealed that the mean diameter of epididymal ducts was 285.17± 2.43µm lined with pseudostratified columnar epithelium. The epididymal duct continuous with ductus deferens which become wider caudally towards the cloaca, the length of right and left ductus deferens were 9.16±1.20 cm and 9.80±1.24cm respectively. The copulatory organ (phallus) of guinea fowl was not well developed and non-intermittent type consist from right and left lateral lymphoid bodies with median eminences, the transverse width 5.01±0.24mm, the cranio-caudal width 3.51±0.07mm and dorso- ventral width 4.32±0.25mm. The lining epithelium of coprodeum was pseudo stratified columnar epithelium. This study concluded that the epididymis of male guinea fowl located on dorsomedial surface of the testes and without definite parts as in domestic animals, the ductus deferens of guinea fowl was tortuous, the phallus of guinea fowl is non - intermittent type.</jats:p

Histological study of the pecten oculi and Cornea of the falcon"s eye ball (circus cyaneus c.)

The histological study of the pecten oculi of falcon eyeball is consists from 11-12 pecten plates connected to the pectin bridge. The pectin oculi extending from optic nerve toward the virtous body. Its characterization are highly visualization and continuous capillary network which infiltrated by melanocyte. The pecten oculi without muscles and nerve fibers. The study revealed that cornea of falcon eyeball was characterized by fine curvature, translucent with peripheral thickness. The cornea occupied the quarter of fibrous tunica. It consists from five layers: - anterior corneal epithelium, Bowman's membrane, stroma, Descement's membrane and endothelium.</jats:p