Comparison of fecal hormone extraction methods and analysis on reproductive hormones in female Malayan tapirs

Non-invasive hormone monitoring provides an important tool to optimize breeding strategies of wildlife species including tapir in captive managements. Previous studies stated that tapir sp. would have been excreted low amount of steroids (progesterone and 17β-oestradiol) in their feces. In additi...

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Main Author:	Ruslan, Muhammad Najib
Format:	Thesis
Language:	English
Published:	2018
Subjects:	Tapirs - Reproduction Hormone receptors
Online Access:	http://psasir.upm.edu.my/id/eprint/83562/1/FS%202018%2099%20-%20ir.pdf
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spelling	my-upm-ir.835622022-01-06T03:20:53Z Comparison of fecal hormone extraction methods and analysis on reproductive hormones in female Malayan tapirs 2018-02 Ruslan, Muhammad Najib Non-invasive hormone monitoring provides an important tool to optimize breeding strategies of wildlife species including tapir in captive managements. Previous studies stated that tapir sp. would have been excreted low amount of steroids (progesterone and 17β-oestradiol) in their feces. In addition, there is still no standardized fecal extraction protocol for Malayan Tapir. Therefore, it is important to detect that low amount of hormones (progesterone and 17β-oestradiol) through several fecal extraction protocols in Schwarzenberger et al. (1996a) (Method A and B), Brown et al. (2001) (Method C), and Shutt et al. (2012) (Method D). The fecal extraction method provides differences in the steps of the method and solvents that used to extract the steroid hormones. Fecal samples were collected from four female Malayan Tapir (N=4) at Sungai Dusun Wildlife Reserve (n=2), Zoo Taiping (n=1) and Zoo Negara (n=1), Malaysia. Results from Liquid Chromatography Mass Spectrometry (LCMS) confirmed the presence of progesterone but not for 17β-oestradiol in fecal samples. Meanwhile, results from Enzyme Linked Immunosorbent Assay (ELISA) showed that there was not a significant difference between all methods in progesterone and its relation to reproductive status (p>0.05). In contrary, there was significant difference between methods in 17β-oestradiol and its relation to reproductive status (p<0.05). These results suggest that, validating the progesterone immunoassay is needed as it might underestimate the actual progesterone concentration. Besides, all extraction protocols for 17β-oestradiol resulted in different concentration range between nonpregnant and pregnant animals. Nevertheless, fecal 17β-oestradiol analysis could be suitable for determining pregnancy status in female Malayan Tapirs. Tapirs - Reproduction Hormone receptors 2018-02 Thesis http://psasir.upm.edu.my/id/eprint/83562/ http://psasir.upm.edu.my/id/eprint/83562/1/FS%202018%2099%20-%20ir.pdf text en public masters Universiti Putra Malaysia Tapirs - Reproduction Hormone receptors Shikh Maidin, Mashitah
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
advisor	Shikh Maidin, Mashitah
topic	Tapirs - Reproduction Hormone receptors
spellingShingle	Tapirs - Reproduction Hormone receptors Ruslan, Muhammad Najib Comparison of fecal hormone extraction methods and analysis on reproductive hormones in female Malayan tapirs
description	Non-invasive hormone monitoring provides an important tool to optimize breeding strategies of wildlife species including tapir in captive managements. Previous studies stated that tapir sp. would have been excreted low amount of steroids (progesterone and 17β-oestradiol) in their feces. In addition, there is still no standardized fecal extraction protocol for Malayan Tapir. Therefore, it is important to detect that low amount of hormones (progesterone and 17β-oestradiol) through several fecal extraction protocols in Schwarzenberger et al. (1996a) (Method A and B), Brown et al. (2001) (Method C), and Shutt et al. (2012) (Method D). The fecal extraction method provides differences in the steps of the method and solvents that used to extract the steroid hormones. Fecal samples were collected from four female Malayan Tapir (N=4) at Sungai Dusun Wildlife Reserve (n=2), Zoo Taiping (n=1) and Zoo Negara (n=1), Malaysia. Results from Liquid Chromatography Mass Spectrometry (LCMS) confirmed the presence of progesterone but not for 17β-oestradiol in fecal samples. Meanwhile, results from Enzyme Linked Immunosorbent Assay (ELISA) showed that there was not a significant difference between all methods in progesterone and its relation to reproductive status (p>0.05). In contrary, there was significant difference between methods in 17β-oestradiol and its relation to reproductive status (p<0.05). These results suggest that, validating the progesterone immunoassay is needed as it might underestimate the actual progesterone concentration. Besides, all extraction protocols for 17β-oestradiol resulted in different concentration range between nonpregnant and pregnant animals. Nevertheless, fecal 17β-oestradiol analysis could be suitable for determining pregnancy status in female Malayan Tapirs.
format	Thesis
qualification_level	Master's degree
author	Ruslan, Muhammad Najib
author_facet	Ruslan, Muhammad Najib
author_sort	Ruslan, Muhammad Najib
title	Comparison of fecal hormone extraction methods and analysis on reproductive hormones in female Malayan tapirs
title_short	Comparison of fecal hormone extraction methods and analysis on reproductive hormones in female Malayan tapirs
title_full	Comparison of fecal hormone extraction methods and analysis on reproductive hormones in female Malayan tapirs
title_fullStr	Comparison of fecal hormone extraction methods and analysis on reproductive hormones in female Malayan tapirs
title_full_unstemmed	Comparison of fecal hormone extraction methods and analysis on reproductive hormones in female Malayan tapirs
title_sort	comparison of fecal hormone extraction methods and analysis on reproductive hormones in female malayan tapirs
granting_institution	Universiti Putra Malaysia
publishDate	2018
url	http://psasir.upm.edu.my/id/eprint/83562/1/FS%202018%2099%20-%20ir.pdf
_version_	1747813397022375936

Comparison of fecal hormone extraction methods and analysis on reproductive hormones in female Malayan tapirs

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