|
|
Open Access
Copyright: The authors. This article is an open access
article licensed under the terms of the Creative Commons Attribution License
(http://creativecommons.org/licenses/by/2.0) which permits unrestricted use,
distribution and reproduction in any medium, provided the work is properly
cited.
Review Article
15. Faecal steroid
metabolites assay as a non-invasive monitoring of
reproductive status in animals - Ashok
Kumar, S Mehrotra, S S Dangi, G Singh, Subhash
chand, Lakhanpal Singh, A S Mahla, Sachin Kumar
and K Nehra
Vet World. 2013; 6(1): 59-63
doi:
10.5455/vetworld.201 3.59-63
Abstract
Measurement of faecal steroids as a non-invasive
technique is widely used to monitor reproductive
hormones in captive and free-ranging wild animals.
This method offers a great advantage over invasive
techniques like blood collection and deserves to
be used in domestic animals. Repeated blood
sampling is stressful, having animal welfare
issues, difficult to obtain in field condition. In
the faeces of cow, estradiol 17-α predominated,
whereas in mares and sows, estradiol 17-β and
estrone are main estrogens. Steroids are
metabolized in liver, excreted in faeces and
extraction is done by using a variety of methods
such as ethanol, methanol etc. Faecal estrogen and
progesterone metabolites evaluations are wel1
established approaches for monitoring of
reproductive functions in a variety of mammalian
species. So in future this method may be the most
suitable for monitoring of reproductive status in
farm animals particularly under field conditions.
Keywords: Faecal steroids, non-invasive
technique, estrogen, progesterone metabolites,
reproductive status
|
|
