Detection of estrus in Indian blackbuck: behavioural, hormonal and urinary volatiles evaluation

General and Comparative Endocrinology
Govindaraju Archunan, Thangavel Rajagopal

Abstract

The determination of the reproductive status is one of the most important factors for effective wild life conservation and management, and effective use of assisted reproductive techniques like artificial insemination, in vitro fertilization/embryo transfer depends on the knowledge of the basic reproductive physiology. In this context the reproductive status of female blackbucks (Antelope cervicapra L.) was assessed by behaviour and determination, sex steroid hormones in faeces and urinary volatile compounds. The male and female blackbucks exhibited as many as 31 different reproductive/courtship behaviour patterns. Particularly, the males showed a more extensive repertoire: i.e. 23 behavioural patterns by territorial males, 11 by bachelor males and 4 by females. The behaviours such as, mounting, Flehmen, clockwise and anticlockwise movements were significantly higher in male blackbuck when exposed to estrus. By contrast, such courtship behaviours were completely absent in male when exposed to diestrus. It clearly indicates that, the estrus female produces specific chemical cues (pheromone) through urine, which would involve in attracting the conspecifics. In addition, the average faecal oestrogen concentration was significantly...Continue Reading

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Citations

Aug 12, 2014·General and Comparative Endocrinology·Devaraj SankarGaneshShanmugam Achiraman
Nov 15, 2014·Behavioral Ecology and Sociobiology·Iris Dröscher, Peter M Kappeler
Oct 7, 2017·Journal of Chemical Ecology·Courtney MarneweckAdrian M Shrader
Sep 25, 2019·Scientific Reports·Marlen KücklichAnja Widdig
Jul 12, 2018·Journal of Chemical Ecology·Holly A CoombesJane L Hurst
Jan 13, 2017·Proceedings. Biological Sciences·Courtney MarneweckAdrian M Shrader
Apr 21, 2020·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·S Craig RobertsBen Langford
Nov 1, 2020·Animals : an Open Access Journal From MDPI·Jacqueline Poldy

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