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Morphology of the interstitial tissue of active and resting testis of the Guinea fowl / Morfología del tejido intersticial del testículo activo y en reposo de la gallina de Guinea
Dharani, Palanisamy; Kumary, S. Usha; Sundaram, Venkatesan; Joseph, Cecilia; Ramesh, Geetha.
  • Dharani, Palanisamy; Tamilnadu Veterinary and Animal Sciences University. Madras Veterinary College. Department of Veterinary Anatomy. Chennai. IN
  • Kumary, S. Usha; Tamilnadu Veterinary and Animal Sciences University. Madras Veterinary College. Department of Veterinary Anatomy. Chennai. IN
  • Sundaram, Venkatesan; The University of The West Indies. Faculty of Medical Sciences. School of Veterinary Medicine. Department of Basic Veterinary Sciences. TT
  • Joseph, Cecilia; Tamilnadu Veterinary and Animal Sciences University. Madras Veterinary College. Department of Veterinary Anatomy. Chennai. IN
  • Ramesh, Geetha; Tamilnadu Veterinary and Animal Sciences University. Madras Veterinary College. Department of Veterinary Anatomy. Chennai. IN
Int. j. morphol ; 35(4): 1359-1362, Dec. 2017. graf
Article in English | LILACS | ID: biblio-893142
ABSTRACT

SUMMARY:

The morphology of the interstitial tissue of sexually active and resting testis of the guinea fowl were studied. Six adult health birds of active and resting phases of reproductive cycle were used for this study. The interstitial tissue consisted of loose connective tissue, interstitial cells (Leydig cells), few connective cells, blood vessels and adrenergic nerve fibres in the present study in both active and resting testes. The interstitial tissue was compact in sexually active testis whereas, the volume of the tissue was found to be increased in resting testis. The loose connective tissue of the interstitial tissue composed of mainly of collagen fibres and few reticular fibres whereas elastic fibres were absent in both groups studied. The interstitial cells appeared in clusters of a few cells and were relatively less in the active testis than the resting testis. The interstitial cells were pale staining or polygonal cells with euchromatic nuclei with few large lipid droplets in the active testis whereas the cells were flat and highly heterochromatic with numerous small lipid droplets in resting testis. Few macrophages were found only in resting testis. Interstitial cells showed negative reaction to alkaline, acid phosphatases and PAS in both groups studied but positive for lipids. The interstitial tissue was well vascularised with centrally located blood vessels in the active testis whereas the blood vessels were small and inconspicuous in the resting testis. The lymphatic vessels were not identified in both groups studied.
RESUMEN
RESUMEN Se estudió la morfología del tejido conectivo intersticial en testículos sexualmente activos y en reposo de la gallina de Guinea (Numida meleagris). Se utilizaron seis gallinas de Guinea machos adultos sanos, en fase activa y de reposo del ciclo reproductivo. El tejido conectivo intersticial estaba formado por tejido conectivo laxo, células endocrinas intersticiales, pocas células conectivas, vasos sanguíneos y fibras nerviosas adrenérgicas, tanto en testículos activos como en reposo. El espacio intertubular en los testículos sexualmente activos era menor en comparación a los del testículos en reposo. El tejido conectivo laxo estaba compuesto principalmente de fibras colágenas y en menor cantidad de fibras reticulares. Las fibras elásticas estaban ausentes en ambos grupos. Las células endocrinas intersticiales se organizaban en racimos de pocas células y se observaban con menor frecuencia en los testículos sexualmente activos. Las células endocrinas intersticiales de los testículos activos presentaban forma poligonal, citoplasma levemente eosinofílico con algunas gotas lipídicas de gran tamaño en su interior y nucleos redondos con cromatina laxa. Las células intersticiales de los testículos en reposo eran planas y altamente heterocromáticas, con numerosas gotas lipídicas pequeñas en su citoplasma. Las células intersticiales mostraron una reacción negativa a las fosfatasas ácidas, alcalinas y PAS en ambos grupos, Sin embargo presentaron reacción positivas para los lípidos. El tejido conectivo intersticial estaba bien vascularizado con vasos sanguíneos situados centralmente en el testículo activo y vasos sanguíneos pequeños y discretos en el testículo en reposo. Los vasos linfáticos no fueron identificados en los dos grupos estudiados.Los macrófagos fueron observados solo en los testículos en reposo, aunque en escasa cantidad.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Testis / Connective Tissue Cells / Galliformes Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2017 Type: Article Affiliation country: India / Trinidad and Tobago Institution/Affiliation country: Tamilnadu Veterinary and Animal Sciences University/IN / The University of The West Indies/TT

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Full text: Available Index: LILACS (Americas) Main subject: Testis / Connective Tissue Cells / Galliformes Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2017 Type: Article Affiliation country: India / Trinidad and Tobago Institution/Affiliation country: Tamilnadu Veterinary and Animal Sciences University/IN / The University of The West Indies/TT