Macro-microscopical aspects of the buffalo (Bubalus bubalis Linnaeus, 1758) pineal gland

Gross and microscopical aspects of the buffalo pineal gland were described in seasonal parturition animals, since this gland is responsible for melatonin secretion which acts upon the hypothalamus-hypophysis reproductive axis feedback system. (Hafez, 1995). For the present study, 11 cross-bred buffa...

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Main Authors: Francisco Javier Hernandez Blazquez, Celina Almeida Furlanetto Mançanares, Maria Angélica Miglino, Carlos Eduardo Ambrósio, Ana Flávia de Carvalho
Format: Article
Language:English
Published: Universidade Federal de Santa Catarina 2009-06-01
Series:Biotemas
Subjects:
Online Access:http://www.biotemas.ufsc.br/volumes/pdf/volume222/127a135.pdf
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author Francisco Javier Hernandez Blazquez
Celina Almeida Furlanetto Mançanares
Maria Angélica Miglino
Carlos Eduardo Ambrósio
Ana Flávia de Carvalho
author_facet Francisco Javier Hernandez Blazquez
Celina Almeida Furlanetto Mançanares
Maria Angélica Miglino
Carlos Eduardo Ambrósio
Ana Flávia de Carvalho
author_sort Francisco Javier Hernandez Blazquez
collection DOAJ
description Gross and microscopical aspects of the buffalo pineal gland were described in seasonal parturition animals, since this gland is responsible for melatonin secretion which acts upon the hypothalamus-hypophysis reproductive axis feedback system. (Hafez, 1995). For the present study, 11 cross-bred buffaloes, predominantly of the Mediterranean breed, from the Pirassununga Campus - USP (University of São Paulo), were killed in different photoperiods in the slaughterhouse. The pineal glands were obtained, fixed, weighed, measured, photographed, processed, cut into sections and stained. All glands demonstrated the same global shape, with a mean length of 8.82 ± 1.07mm and a width of 7.91 ± 0.83mm, and a stem length of 5.50 ± 4.18mm. The stems had a microscopically visible lumen. The mean gland weight was 251.45 ± 83.1mg. The buffalo pineal gland presented right and left lobes of different sizes. Microscopically, they were surrounded by a connective tissue layer with blood vessels infiltrating into the glandular parenchyma, which became separated into glial cell lobules. A great number of the pinealocytes were arranged in irregular strings, and cells from the connective tissue could be observed in the glandular parenchyma. We conclude that the buffalo pineal gland is similar to that of pineal cows and that it does not show morphologic alterations during different photoperiods of the year.
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spelling doaj.art-bfad31b345bd4975933cf6c61acf6b562022-12-22T01:38:37ZengUniversidade Federal de Santa CatarinaBiotemas0103-16432009-06-01222127135Macro-microscopical aspects of the buffalo (Bubalus bubalis Linnaeus, 1758) pineal glandFrancisco Javier Hernandez BlazquezCelina Almeida Furlanetto MançanaresMaria Angélica MiglinoCarlos Eduardo AmbrósioAna Flávia de CarvalhoGross and microscopical aspects of the buffalo pineal gland were described in seasonal parturition animals, since this gland is responsible for melatonin secretion which acts upon the hypothalamus-hypophysis reproductive axis feedback system. (Hafez, 1995). For the present study, 11 cross-bred buffaloes, predominantly of the Mediterranean breed, from the Pirassununga Campus - USP (University of São Paulo), were killed in different photoperiods in the slaughterhouse. The pineal glands were obtained, fixed, weighed, measured, photographed, processed, cut into sections and stained. All glands demonstrated the same global shape, with a mean length of 8.82 ± 1.07mm and a width of 7.91 ± 0.83mm, and a stem length of 5.50 ± 4.18mm. The stems had a microscopically visible lumen. The mean gland weight was 251.45 ± 83.1mg. The buffalo pineal gland presented right and left lobes of different sizes. Microscopically, they were surrounded by a connective tissue layer with blood vessels infiltrating into the glandular parenchyma, which became separated into glial cell lobules. A great number of the pinealocytes were arranged in irregular strings, and cells from the connective tissue could be observed in the glandular parenchyma. We conclude that the buffalo pineal gland is similar to that of pineal cows and that it does not show morphologic alterations during different photoperiods of the year.http://www.biotemas.ufsc.br/volumes/pdf/volume222/127a135.pdfpineal glandbuffalopinealocytes
spellingShingle Francisco Javier Hernandez Blazquez
Celina Almeida Furlanetto Mançanares
Maria Angélica Miglino
Carlos Eduardo Ambrósio
Ana Flávia de Carvalho
Macro-microscopical aspects of the buffalo (Bubalus bubalis Linnaeus, 1758) pineal gland
Biotemas
pineal gland
buffalo
pinealocytes
title Macro-microscopical aspects of the buffalo (Bubalus bubalis Linnaeus, 1758) pineal gland
title_full Macro-microscopical aspects of the buffalo (Bubalus bubalis Linnaeus, 1758) pineal gland
title_fullStr Macro-microscopical aspects of the buffalo (Bubalus bubalis Linnaeus, 1758) pineal gland
title_full_unstemmed Macro-microscopical aspects of the buffalo (Bubalus bubalis Linnaeus, 1758) pineal gland
title_short Macro-microscopical aspects of the buffalo (Bubalus bubalis Linnaeus, 1758) pineal gland
title_sort macro microscopical aspects of the buffalo bubalus bubalis linnaeus 1758 pineal gland
topic pineal gland
buffalo
pinealocytes
url http://www.biotemas.ufsc.br/volumes/pdf/volume222/127a135.pdf
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