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Methods of semen collection in an ambulatory greater one‐horned rhinoceros ( rhinoceros unicornis )
Author(s) -
Schaffer N. E.,
Beehler B.,
Jeyendran R. S.,
Balke B.
Publication year - 1990
Publication title -
zoo biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.5
H-Index - 54
eISSN - 1098-2361
pISSN - 0733-3188
DOI - 10.1002/zoo.1430090304
Subject(s) - electroejaculation , semen collection , rhinoceros , biology , semen , captive breeding , artificial insemination , anatomy , endangered species , zoology , sperm motility , pregnancy , ecology , genetics , habitat
Illegal poaching and reduced habitats have led to the endangered status of rhinoceroses. Collection of semen for preservation and future artificial insemination would therefore increase the reproductive potential of the rhinoceros. Although various collection methods have been attemped with individual rhinos, comparison between methods on a single animal have not been reported. This report details the application of six semen collection techniques on an unsedated and unrestrained greater one‐horned rhino. The methods included different types of penile and/or rectal stimulation. Artificial vaginas and an inflatible probe for electroejaculation were specially constructed for semen collection. Of the various methods employed, penile massage consistently resulted in sperm‐poor seminal fluid, but when preceded by either rectal massage or electroejaculation, seminal fluid with high sperm concentration was obtained.