Reproductive activity after induced anestrus using altrenogest in Tursiops truncatus females in captivity in marine environment

i nterest to reproduce Bottlenose dolphin ( Tursiops truncatus ) in captivity has increased due to the international restrictions for its commercialization and the risks and logistical difficulties for transporting specimens. Therefore, it has become important to study its reproductive biology in...

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Main Authors: J. A. Herrera, R. Sánchez, J. A. Bernal, A. López, J. G. Rivera, A. Guzmán, A. Ávalos
Format: Article
Language:Spanish
Published: Universidad Nacional de Colombia 2015-01-01
Series:Revista de la Facultad de Medicina Veterinaria y de Zootecnia
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Online Access:http://www.redalyc.org/articulo.oa?id=407642416003
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author J. A. Herrera
R. Sánchez
J. A. Bernal
A. López
J. G. Rivera
A. Guzmán
A. Ávalos
author_facet J. A. Herrera
R. Sánchez
J. A. Bernal
A. López
J. G. Rivera
A. Guzmán
A. Ávalos
author_sort J. A. Herrera
collection DOAJ
description i nterest to reproduce Bottlenose dolphin ( Tursiops truncatus ) in captivity has increased due to the international restrictions for its commercialization and the risks and logistical difficulties for transporting specimens. Therefore, it has become important to study its reproductive biology in captivity. The objective of the present study was to determine altrenogest ( r egumate ®) post-treatment indicators of vaginal cytology, estradiol levels and restarting of reproductive activity of T. truncatus females in captivity in marine environment. Twelve females received altrenogest at a daily dose of 0.07mg kg -1 for a year. a total 420 slides of vaginal cytology of each female were performed to determine the percentage of cornified cells. a lso, 60 blood samples of each animal were analyzed to determine estradiol levels. r egarding the vaginal cytology; percentage of cornified cells increased between 60 and 70% from day 4 to day 9 after removing the altrenogest treatment and between 70 and 80% from day 12 to day 19. e stradiol levels were in the range of 16 to 114pg ml -1 during the entire monitoring period. a positive correlation (r = 0.7062; P<0.05) was found between these indicators. Therefore, we conclude that treatment with altrenogest and monitoring the estrous cycle with simple techniques such as vaginal cytology might be used for designing protocols for assisted reproduction for groups of T truncatus in captivity.
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issn 0120-2952
2357-3813
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publisher Universidad Nacional de Colombia
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series Revista de la Facultad de Medicina Veterinaria y de Zootecnia
spelling doaj-art-e925bbf467894653a18d41a9e725ce532025-02-07T19:46:43ZspaUniversidad Nacional de ColombiaRevista de la Facultad de Medicina Veterinaria y de Zootecnia0120-29522357-38132015-01-016221622Reproductive activity after induced anestrus using altrenogest in Tursiops truncatus females in captivity in marine environmentJ. A. HerreraR. SánchezJ. A. BernalA. LópezJ. G. RiveraA. GuzmánA. Ávalosi nterest to reproduce Bottlenose dolphin ( Tursiops truncatus ) in captivity has increased due to the international restrictions for its commercialization and the risks and logistical difficulties for transporting specimens. Therefore, it has become important to study its reproductive biology in captivity. The objective of the present study was to determine altrenogest ( r egumate ®) post-treatment indicators of vaginal cytology, estradiol levels and restarting of reproductive activity of T. truncatus females in captivity in marine environment. Twelve females received altrenogest at a daily dose of 0.07mg kg -1 for a year. a total 420 slides of vaginal cytology of each female were performed to determine the percentage of cornified cells. a lso, 60 blood samples of each animal were analyzed to determine estradiol levels. r egarding the vaginal cytology; percentage of cornified cells increased between 60 and 70% from day 4 to day 9 after removing the altrenogest treatment and between 70 and 80% from day 12 to day 19. e stradiol levels were in the range of 16 to 114pg ml -1 during the entire monitoring period. a positive correlation (r = 0.7062; P<0.05) was found between these indicators. Therefore, we conclude that treatment with altrenogest and monitoring the estrous cycle with simple techniques such as vaginal cytology might be used for designing protocols for assisted reproduction for groups of T truncatus in captivity.http://www.redalyc.org/articulo.oa?id=407642416003altrenogestbottlen osedestrousreproduction
spellingShingle J. A. Herrera
R. Sánchez
J. A. Bernal
A. López
J. G. Rivera
A. Guzmán
A. Ávalos
Reproductive activity after induced anestrus using altrenogest in Tursiops truncatus females in captivity in marine environment
Revista de la Facultad de Medicina Veterinaria y de Zootecnia
altrenogest
bottle
n osed
estrous
reproduction
title Reproductive activity after induced anestrus using altrenogest in Tursiops truncatus females in captivity in marine environment
title_full Reproductive activity after induced anestrus using altrenogest in Tursiops truncatus females in captivity in marine environment
title_fullStr Reproductive activity after induced anestrus using altrenogest in Tursiops truncatus females in captivity in marine environment
title_full_unstemmed Reproductive activity after induced anestrus using altrenogest in Tursiops truncatus females in captivity in marine environment
title_short Reproductive activity after induced anestrus using altrenogest in Tursiops truncatus females in captivity in marine environment
title_sort reproductive activity after induced anestrus using altrenogest in tursiops truncatus females in captivity in marine environment
topic altrenogest
bottle
n osed
estrous
reproduction
url http://www.redalyc.org/articulo.oa?id=407642416003
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AT jabernal reproductiveactivityafterinducedanestrususingaltrenogestintursiopstruncatusfemalesincaptivityinmarineenvironment
AT alopez reproductiveactivityafterinducedanestrususingaltrenogestintursiopstruncatusfemalesincaptivityinmarineenvironment
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AT aguzman reproductiveactivityafterinducedanestrususingaltrenogestintursiopstruncatusfemalesincaptivityinmarineenvironment
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