SPERMATOZOAN CHARACTERISTICS IN MICE OF DIFFERENT AGES

in Reproduction
Authors:
R. A. BEATTY
Search for other papers by R. A. BEATTY in
Current site
Google Scholar
PubMed
Close
and
D. P. MUKHERJEE
Search for other papers by D. P. MUKHERJEE in
Current site
Google Scholar
PubMed
Close
Free access

Sign up for journal news

Summary.

In inbred male mice sampled at a standard time of year, increased age was accompanied by a marked fall in the proportion of spermatozoa with normal acrosomal caps, thus indicating a concomitant fall in fertility. Age trends were noted in the projected area of the midpiece and perhaps also in the breadth of the spermatozoan head. There was no significant age trend in the projected area of the spermatozoan head or the length of the midpiece. No difference of any kind was detected between the spermatozoa of albino and heterozygous albino males.

 

  • Collapse
  • Expand