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Bovine serum albumin: survival and osmolarity effect in bovine spermatozoa stored above freezing point
Author(s) -
Nang C. F.,
Osman K.,
Budin S. B.,
Ismail M. I.,
Jaffar F. H. F.,
Mohamad S. F. S.,
Ibrahim S. F.
Publication year - 2012
Publication title -
andrologia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.633
H-Index - 59
eISSN - 1439-0272
pISSN - 0303-4569
DOI - 10.1111/j.1439-0272.2011.01203.x
Subject(s) - bovine serum albumin , andrology , osmotic concentration , incubation , cryopreservation , semen , sperm , freezing point , biology , liquid nitrogen , zoology , chemistry , biochemistry , embryo , medicine , fishery , physics , thermodynamics , organic chemistry
Summary Liquid nitrogen preservation in remote farms is a limitation. The goal of this study was to determine optimum temperature above freezing point for bovine spermatozoa preservation using bovine serum albumin (BSA) as a supplementation. Pooled semen sample from three ejaculates was subjected to various BSA concentration (1, 4, 8 and 12 mg ml −1 ), before incubation in different above freezing point temperatures (4, 25 and 37 °C). Viability assessment was carried out against time from day 0 (fresh sample) until all spermatozoa become nonviable. Optimal condition for bovine spermatozoa storage was at 4 °C with 1 mg ml −1 BSA for almost 7 days. BSA improved bovine spermatozoa viability declining rate to 44.28% at day 4 and 57.59% at day 7 compared to control, with 80.54% and 98.57% at day 4 and 7 respectively. Increase in BSA concentration did not improve sperm viability. Our results also confirmed that there was a strong negative correlation between media osmolarity and bovine spermatozoa survival rate with r = 0.885, P < 0.0001. Bovine serum albumin helps to improve survival rate of bovine spermatozoa stored above freezing point.