Short Communication

Semen characteristics of goats with subacute, acute and chronic besnoitiosis : research communication

M.J. Njenga, S.J.M. Munyua, E.R. Mutiga, J.M. Gathuma, E.K. Kang’ethe, O. Bwangamoi, G.M. Mugera, B.N. Mitaru
Journal of the South African Veterinary Association | Vol 70, No 1 | a745 | DOI: https://doi.org/10.4102/jsava.v70i1.745 | © 1999 M.J. Njenga, S.J.M. Munyua, E.R. Mutiga, J.M. Gathuma, E.K. Kang’ethe, O. Bwangamoi, G.M. Mugera, B.N. Mitaru | This work is licensed under CC Attribution 4.0
Submitted: 12 July 1999 | Published: 12 July 1999

About the author(s)

M.J. Njenga,
S.J.M. Munyua,
E.R. Mutiga,
J.M. Gathuma,
E.K. Kang’ethe,
O. Bwangamoi,
G.M. Mugera,
B.N. Mitaru,

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Abstract

A study on the semen obtained from breeding goats suffering from mild to severe chronic besnoitiosis revealed marked changes in semen volume, colour, density, concentration, mass and individual motility and percentage live. There were also many neutrophils and spermatozoa with primary and secondary defects, including missing tails and deformed heads and tails. The observed changes were considered to be severe enough to account for the infertility observed in the flock. Sections of testes obtained for histopathology were characterised by massive blockage of the pampiniform plexus, degeneration of the germinal epithelium, tubular necrosis with an inflammatory infiltrate and, in some cases, accumulation of haemosiderin-like material in the tunica vaginalis.

Keywords

Besnoitiosis; Caprine; Orchitis; Semen Quality

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