Zou CX, Yang ZM. Evaluation on sperm quality of freshly ejaculated boar semen during in vitro storage under different temperatures.
Theriogenology 2000;
53:1477-88. [PMID:
10898217 DOI:
10.1016/s0093-691x(00)00290-9]
[Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The purpose of this study was to assess the sperm quality of fresh ejaculated boar semen stored under different temperatures for up to 48 h in order to use the fresh semen efficiently. Spermatozoa were evaluated by 4 methods: Using trypan blue staining, the viability of spermatozoa stored at 39, 20, 15 and 4 degrees C for 48 h were 1.6, 46.9, 42.0 and 31.0%, respectively. Employing the hypoosmotic swelling test (HOST) showed 1.7%(39 degrees C), 28.7%(20 degrees C), 24.1%(15 degrees C), and 20.1%(4 degrees C) coiled-tail spermatozoa following 48 h storage. With Coomassie blue staining, the rates of acrosome-intact spermatozoa stored for 48 h were 4.5%(39 degrees C), 35.3%(20 degrees C), 55.7%(15 degrees C) and 22.8%(4 degrees C). Using fluorescein isothiocyanate-peanut agglutinin (FITC-PNA), the percentages of acrosome-intact spermatozoa stored for 48 h were 4.3%(39 degrees C), 43.2%(20 degrees C), 17.3%(15 degrees C) and 14.8%(4 degrees C), respectively. The cytoplasmic droplets were found in 18.66% of the spermatozoa in fresh semen and were gradually shed during storage. The results of these 4 methods were highly correlated and could be used to characterized sperm-cell quality effectively. These findings indicated that both membrane integrity and viability of spermatozoa could be preserved well during in vitro storage at 20 degrees C and 15 degrees C for 24 to 48 h.
Collapse