A gross anatomical and histo-morphological study of the vagina of the emu (Dromaius novaehollandiae) and ostrich (Struthio camelus)

Madekurozwa, Mary-Catherine

doi:10.1071/ea08129

Cited by 3 publications

(4 citation statements)

References 20 publications

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“…It was the longest part of the oviduct that had welldeveloped tubular glands that produced the albumin. The mucosal folds were numerous and variable in size than those of the infundibulum, branched into primary and secondary folds, lined with pseudo stratified columnar ciliated secretory epithelium, the lamina propriasubmucosa contained branched tubular glands, and the tunica muscularis-mucosa contained inner circular and outer longitudinal smooth muscle layers (Figure 3C); these results were in parallel to that mentioned by (37) in birds, (40) in ostrich; (22) in turkey and pigeon.…”

Section: Magnumsupporting

confidence: 82%

Gross and Histomorphological Study of the Ovary and Oviduct of Turkey Hen with Especial Emphasis on the Sperm-Host Gland

et al. 2021

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Turkey bird is one of the popular poultry species which is reared primarily for meat production and considered as one of the major sources of animal protein. With such importance of this species, this study was designed to investigate the gross and histomorphology of the ovary and oviduct with especial emphasis on sperm-host glands of the turkey hen involving ten mature female turkeys (Meleagris gallopavo). The present study highlighted the distribution pattern of sperm-host glands (SHGs) in the oviduct of turkey hen that has a potential role in producing a fertile egg in poultry industries. The oviduct of turkey consists of the infundibulum, magnum, isthmus, uterus, and vagina which are sole distributors for making nutrition enriched egg. The tissue samples were collected from the ovary, different segments of the oviduct and especially uterovaginal junction (UVJ) and infundiomagnal junction of the oviduct. The ovaries and the oviducts were dissected and fixed in Bouins solution and processed for a light microscopic study. Histologically, the left ovary of turkey consisted of an outer cortex and inner medulla, with different stages of follicles. In all areas of the oviduct except the infundibulum and vagina, the tunica mucosa epithelium was lined with ciliated pseudo stratified columnar epithelium, and the lamina propria-submucosa contained branched tubular glands. Sperm-storage tubules were observed in the uterovaginal junction and infundibulo-magnum junction. These tubules were mostly branched, slightly coiled and extended into the lamina propria from the bases of the mucosal folds. These glands had proximal and distal parts; the proximal part was lined by pseudostratified columnar epithelium and distal part by non-ciliated simple columnar epithelium. The number of sperm host glands was more at uterovaginal junction than infundibulomagnal junction. The sperm-host glands might play a functional role in the storage and release of spermatozoa from the SHGs in response to oviposition or ovulation. The results would help poultry scientists and farmers in developing effective disease control and growth strategies.

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Section: Magnumsupporting

confidence: 82%

Gross and Histomorphological Study of the Ovary and Oviduct of Turkey Hen with Especial Emphasis on the Sperm-Host Gland

et al. 2021

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“…Wyburn et al. (1970) and Madekurozwa and Mpango (2020) observed electron dense secretory granules in ciliated cells of the magnum of the domestic fowl, and similar structures have been seen in the ostrich uterus (Muwazi et al., 1982; Saber et al., 2009) and vagina (Madekurozwa, 2008) and in the uterus (Johnston et al., 1963) and infundibulum (Aitken and Johnston 1963, Wyburn et al., 1970) of the domestic fowl. Ciliated cells containing mucin droplets have also been described in the vagina of the Rhea (Parizzi et al., 2008).…”

Section: Discussionmentioning

confidence: 77%

“…To date, little is known about glycosylation in the avian reproductive tract and, of those few studies available, none has traced changes in glycan expression along its total length from infundibulum to vagina. Mostly PAS and Alcian Blue staining have been used, which only distinguish between neutral and acidic or sulphated mucopolysaccharides (Aitken and Johnston 1963; Johnston et al., 1963; Madekurozwa, 2008; Madekurozwa & Mpango, 2020; Muwazi et al., 1982; Robinson et al 1968; Wyburn et al., 1970, Wyburn et al., 1973; Saber et al., 2009; Sharaf et al., 2012; Sharaf et al., 2013; Wani et al., 2017), but reports of mucin localization have been sketchy and often incomplete. Lectin histochemistry performed on resin semi‐thin sections allows the localization of glycans to cells and their organelles with excellent resolution, maintaining the structural identity of the tissues, and enabling the identification of all classes of glycan to particular cell types.…”

Section: Introductionmentioning

confidence: 99%

A preliminary study on the glycosylation of the reproductive tract in the Ostrich (Struthio camelus camelus)

Jones

Aplin

Ververs

et al. 2020

Reprod Domestic Animals

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Glycosylation of the reproductive tract of an adult female red‐necked ostrich (Struthio camelus camelus) carrying a fully formed calcified egg in her uterus when accidently killed by a blow to the head was examined using lectin histochemistry on samples from the infundibulum, magnum, uterus and vagina. Glycans in the luminal epithelium and underlying glands were described after staining with 23 lectins after neuraminidase pre‐treatment in some cases. Ciliated and non‐ciliated cells were evident at all levels in the luminal epithelium, the latter full of richly glycosylated secretory granules. The ciliated cells also showed glycosylation and, in the magnum, these cells often stained more intensely than the non‐ciliated cells. High mannose and complex N‐glycans, α1,6‐linked fucosyl and sialic acid residues were present throughout the tract and there was a complete absence of GalNAcα1,3(LFucα1,2)Galß1,3/4GlcNAcß1‐ and rare terminal GalNAcα1‐ residues. Fucose in α1,2‐linkage as H2 antigen and Ley was also rare in the luminal epithelium and completely absent in glands. Terminal galactose was present in the luminal epithelium apart from in the infundibulum. Gland epithelium showed similar glycosylation to the luminal epithelium except in the magnum where there were significant differences and here the glands were packed full of large secretory granules, unlike the glands in the rest of the tract. Each section of the tract had its own specific pattern of glycosylation which could be related to the stage of egg formation.

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“…Current gross anatomical literature focuses on the thoracoabdominal viscera and the circulatory, respiratory and musculoskeletal systems of the emu and ostrich (Cho et al., 1984; Maina and King, 1989; Fowler, 1991; Patak and Baldwin, 1993, 1998; Wagner et al., 2001; Dzialowski and Greyner, 2008; Goetz et al., 2008). Literature on the reproductive systems of the emu focuses on the immunohistochemistry of the testicle (Ozegbe et al., 2008, 2010) ovary (Madekurozwa, 2007) and histology of the vagina (Madekurozwa, 2008). This investigation will focus on the gross anatomy of the non‐laying, female emu reproductive tract.…”

Section: Introductionmentioning

confidence: 99%

Macroscopic Anatomy of the Reproductive Tract of the Reproductively Quiescent Female Emu (Dromaius novaehollandiae)

Reed

Cope

Blackford

2010

Anat Histol Embryol

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Three reproductively quiescent female emus (Dromaius novaehollandiae) were embalmed with 10% formalin solution. The reproductive tract was dissected and described. The reproductive tract consists of an ovary and oviduct situated on the left side of the abdominal cavity. The left ovary is dark brown to black in colour with follicles covering the ventral surface. The ovary is located medial to the spleen and closely associated with the ventral surface of the cranial and middle lobes of the left kidney. The oviduct is a relatively straight tube that extends from the level of the cranial extent of the left ilium to the caudal border of the left pubic bone. The oviduct is grossly divided into the infundibulum, magnum, isthmus, uterus and vagina using variations in the mucosal fold pattern.

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A gross anatomical and histo-morphological study of the vagina of the emu (Dromaius novaehollandiae) and ostrich (Struthio camelus)

Cited by 3 publications

References 20 publications

Gross and Histomorphological Study of the Ovary and Oviduct of Turkey Hen with Especial Emphasis on the Sperm-Host Gland

Gross and Histomorphological Study of the Ovary and Oviduct of Turkey Hen with Especial Emphasis on the Sperm-Host Gland

A preliminary study on the glycosylation of the reproductive tract in the Ostrich (Struthio camelus camelus)

Macroscopic Anatomy of the Reproductive Tract of the Reproductively Quiescent Female Emu (Dromaius novaehollandiae)

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