Functional changes in fowl sperm during their passage through the excurrent ducts of the male

Munro, S. S.

doi:10.1002/jez.1400790106

Cited by 63 publications

(37 citation statements)

References 17 publications

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“…Este estende-se do epidídimo até a cloaca, local em que se abre latero-ventralmente, na região do urodeo, pró-ximo ao ureter, como descrito por Marvan (1968). O trajeto sinuoso do ducto deferente descrito por Munro (1938) e Viegas (2004, saindo do epidídimo até próximo à cloaca e antes de desembocar na cloaca tornar-se mais retilíneo, terminando em uma curta papila, também é comum aos resultados macroscópicos em emas adultas.…”

Section: Discussionunclassified

Morfologia dos órgãos genitais masculinos e da cloaca da ema (Rhea americana americana)

et al. 2011

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ABSTRACT.-Santos T.C., Sousa, J.A., Oliveira M.F., Santos J.M., Parizzi R. The rhea (Rhea americana americana) is a bird that belongs to the group of the Ratitas, order Rheiforme and family Rheidae. Macroscopic and microscopic morphology of the male genital organ (testes, epididymis, deferent ducts, and phallus) and the cloaca were analyzed in 23 emas, four chicken (2 weeks old), young (3 to 10 months old), and twelve adult ones (3 years old), from Cooperativa Emas do Brasil, RS and from CEMAS, Mossoró, RN. The testis of rhea had elongated shape and were located inside coelomatic cavity, in dorsal region of abdominal cavity, with medium length and width of 7.6±1.2cm and 2.6±0.7cm at adult animals; 4.5±1.5cm and 0.9±0.4cm at young animals; and 0.8±0.3cm, and 0.2±0.1cm at chicken. The testis were recovered by the tunica albuginea and its parenchyma had seminiferous tubules composed by spermatogenic epithelium and by sustentation cells, and also interstitial tissue, with interstitial endocrine cells, connective tissue and vessels. At the adult animals were observed all the cells from spermatogenic lineage, whilst at the youngs with 3 months the seminiferous tubules had a smale lumen with spermatogonia and undifferentiated sustentacular cells. The efferents ductus were composed by a cubic ciliated epithelium, while the epididimydis duct had a columnar epithelium. The epididymis was elongated and fusiform closely to medial testis board. The deferent duct had sinuous stretch at adult animals, rectilineae at young animal, convolute at its medium portion, decreasing its sigmoid shape at caudal portion, next to cloaca. The epithelium was pseudostratified ciliated, irregular lumen at adult animal, and circular at young animal, closely with urether. The cloaca was divided into three segments: coprodeum, urodeum and proctodeum. At urodeum the deferent ducts discharged into papillas at the ventral side wall, next to fibrous phallus's insertion. The phallus was a lymphatic fibrous organ, located at ventral wall, at the cloaca floor, and was composed by two portions: one rigid forked and twisted, and another simple spiraled and flexible, which normally was inverted. In forced exposition, the phallus had 14 cm in length. In a general way the Rhea genital organs shared the morphology from others birds, mainly those described to the ostrich.

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Section: Discussionunclassified

Morfologia dos órgãos genitais masculinos e da cloaca da ema (Rhea americana americana)

et al. 2011

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“…This stalk breaks at the time of spermiation, and the retraction and rounding up of the proximal end of the stalk forms the cytoplasmic droplet in the neck region of the free spermatozoon. The remainder of the spermatid cytoplasm is engulfed by Sertoli cells. Functional changes in spermatozoa during passage through the excurrent ducts of the cock are reported by Munro (1938). Motility is minimal in the testis, noticeably increased in the epididymal region and maximal in the ductus deferens.…”

Section: Discussionmentioning

confidence: 99%

Observations on the Fine Structure of Spermatozoa in the Testis and Excurrent Ducts of the Male Fowl, Gallus Domesticus

Tingari¹

1973

Reproduction

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“…Semen collection was done once a week because the time range required for semen to pass from the testes to the distal region of the ductus deferens varies from 1 to 4 days (22). The time of semen collection was between 0800 and 0900 hours, and the method of collection was the abdominal manual massage method described previously (23,24).…”

Section: Animal and Semen Collectionmentioning

confidence: 99%

Evaluation of the ejaculate quality of the red jungle fowl, domestic chicken, and bantam chicken in Malaysia

Malik¹,

Haron²,

Yusoff³

et al. 2013

Turk J Vet Anim Sci

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Functional changes in fowl sperm during their passage through the excurrent ducts of the male

Cited by 63 publications

References 17 publications

Morfologia dos órgãos genitais masculinos e da cloaca da ema (Rhea americana americana)

Morfologia dos órgãos genitais masculinos e da cloaca da ema (Rhea americana americana)

Observations on the Fine Structure of Spermatozoa in the Testis and Excurrent Ducts of the Male Fowl, Gallus Domesticus

Evaluation of the ejaculate quality of the red jungle fowl, domestic chicken, and bantam chicken in Malaysia

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