Effect of DMSO combined with trehalose on cryopreservation of goose semen

Abstract

Poultry semen cryopreservation technology is one of the most direct methods to protect poultry germplasm, and in this study, the back and abdomen massage method is used to collect the semen of 20 Huoyan male geese, which is on the basis of EK diluent adding different combinations of dimethyl sulfoxide (DMSO) and trehalose, in total 7 different combinations treatments were achieved: D1T0 (5%DMSO), D1T1 (5% DMSO + 50 mM trehalose), D1T2 (5%DMSO + 100 mM trehalose), D2T0 (10% DMSO), D2T1 (10% DMSO + 50 mM trehalose), D2T2 (10% DMSO + 100 mol trehalose) and no addition group D0T0 (0% DMSO + 0 mM trehalose). Diluted semen was frozen in granules in liquid nitrogen vapour. After thawing in 40°C water bath, determinate sperm livability, acrosome integrity, plasma membrane integrity, catalase (CAT) activity, superoxide dismutase (SOD) activity, glutathione peroxidase (GSH-Px) activity, malondialdehyde (MDA) content and reactive oxygen species (ROS) level, and the results showed that 10% DMSO and 0.05 mol/L trehalose could significantly improve the sperm motility, acrosome integrity rate and plasma membrane integrity rate after thawing, and significantly increase the levels of antioxidant enzymes CAT, SOD and GSH-Px in seminal plasma (P < .05), significantly decreased MDA and ROS levels (P < .05).

Keywords

• DMSO
• trehalose
• goose
• semen cryopreservation