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1 May 2003 Desiccation Tolerance of Spermatozoa Dried at Ambient Temperature: Production of Fetal Mice
Sankha Bhowmick, Liben Zhu, Lynda McGinnis, Joel Lawitts, Bharat D. Nath, Mehmet Toner, John Biggers
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Abstract

Long-term preservation of mouse sperm by desiccation is economically and logistically attractive. The current investigation is a feasibility study of the preservation of mouse sperm by convective drying in an inert gas (nitrogen). Mouse sperm from the B6D2F1 strain isolated in an EGTA-supplemented Tris-HCl buffer were dried using three different drying rates and were stored for 18–24 h at 4°C. The mean final moisture content was <5% for all the protocols. After intracytoplasmic sperm injection (ICSI), the mean blastocyst formation rates were 64%, 58%, and 35% using the rapid-, moderate-, and slow-drying protocols, respectively. The slow-drying protocol resulted in a rate of development significantly lower than that observed using rapid- and moderate-drying protocols and indicated that a slower drying rate may be detrimental to the DNA integrity of mouse sperm. The transfer of 85 two- or four-cell embryos that were produced using rapidly desiccated sperm resulted in 11 fetuses (13%) on Day 15 compared with the production of 34 fetuses (40%) produced using the transfer of 86 two- or four-cell embryos that were produced using fresh sperm (P < 0.05). The results demonstrate the feasibility of using a convective drying protocol for the successful desiccation of mouse sperm and identifies some of the important parameters required for optimization of the procedure.

Sankha Bhowmick, Liben Zhu, Lynda McGinnis, Joel Lawitts, Bharat D. Nath, Mehmet Toner, and John Biggers "Desiccation Tolerance of Spermatozoa Dried at Ambient Temperature: Production of Fetal Mice," Biology of Reproduction 68(5), 1779-1786, (1 May 2003). https://doi.org/10.1095/biolreprod.102.009407
Received: 17 July 2002; Accepted: 1 December 2002; Published: 1 May 2003
KEYWORDS
assisted reproductive technology
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