Dry mass of sperm

Value 1.3E-11 Grams
Organism Cow Bos Taurus
Reference Bahr GF, Zeitler E. Study of bull spermatozoa. Quantitative electron microscopy. J Cell Biol. 1964 May21:175-89. p.183 table IIPubMed ID14153480
Method The image of a straight spermatozoon on the electron micrograph is moved through a slot-shaped aperture of the photometer while the cross-sectional transmission is concurrently recorded. Simple planimetry of such recordings permits the derivation of the mass of any desired part of the object.
Comments More than 150 measurements from each animal yield very close values of the median masses, which, being within the error limits of the standardization, can be considered as identical. Above is median mass for one bull. Another bull had median sperm mass of 1.335E-11 grams.
Entered by Uri M
ID 106854