1.054
IF5
1.150
IF
Q3
JCR
1.7
CiteScore
0.396
SJR
Q2
SJR
40
MNiSW
148.75
ICV
ORIGINAL PAPER
 
CC-BY 4.0
 
 

Seasonal variations in the morphometric analysis of the testis, testosterone production, and occurrence of pathological spermatozoa in the brown hare (Lepus europaeus)

P. Massányi 1,  
J. Slamečka 2,  
N. Lukáč 3,  
 
1
Slovak University of Agriculture, Department of Physiology and Anatomy of Farm Animals, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic
2
Research Institute of Animal Production, Department of Wild Animal Science, Hlohovská 2, 949 92 Nitra, Slovak Republic
3
Slovak University of Agriculture, Department of Reproduction and Disease Prevention, Hospodárska 7, 949 01 Nitra, Slovak Republic
J. Anim. Feed Sci. 2000;9(4):709–719
Publication date: 2000-10-04
KEYWORDS
ABSTRACT
Seasonal variations in the morphometric analysis of the testis, variations in testosterone production, and occurrence of pathological spermatozoa in the brown hare (Lepus europaeus) were studied. In evaluating the relative volume of germinal epithelium, interstitium and lumen in hare testis we found the highest relative volume of germinal epithelium in the winter (84.14%). The lowest level was found in the summer, but the highest relative volumes of interstitium (12.47%) and lumen (18.11%) were in the summer. The germinal epithelium achieved a maximum height in the winter (35.47 μm), when the diameter of the seminiferous tubules was also at a maximum (320.75 μm). These data are supported by analysis of testosterone production, which shows that the highest concentration of testosterone in blood was found in the winter (5.72 ng/ml), the lowest in the summer (0.87 ng/ml). This difference was significant (P<0.01). Analysis of pathological spermatozoa showed that their occurrence ranged from 11.50 to 24.17%, with the highest value in the spring. As the spermatozoa were collected from the epididymis, the most frequently found pathological form was spermatozoa with retention of the cytoplasmic drop.
 
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ISSN:1230-1388