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The effect of season of the year on the characteristics and composition of dog semen
Author(s) -
TAHA M. B.,
NOAKES D. E.,
ALLEN W. EDWARD
Publication year - 1981
Publication title -
journal of small animal practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.7
H-Index - 67
eISSN - 1748-5827
pISSN - 0022-4510
DOI - 10.1111/j.1748-5827.1981.tb01403.x
Subject(s) - beagle , semen , medicine , sperm , libido , testosterone (patch) , sperm motility , andrology , ejaculation , semen analysis , semen quality , zoology , physiology , biology , infertility , pregnancy , genetics
ABSTRACT Semen (collected by digital manipulation) and peripheral blood samples were obtained twice weekly from five fully grown Beagle dogs for a twelve month period from 1st August to 31st July. Sperm concentration, sperm output and glycerylphosphorylcholine concentrations of the second fraction showed evidence of a seasonal variation with highest values recorded in the months of March, April, May and June. The libido of the dogs, volume of ejaculate, percentage dead and abnormal spermatozoa, sperm motility and plasma testosterone concentration showed no evidence of seasonal change.