Preservation of honey bee spermatozoa using egg yolk and soybean lecithin-based semen extenders and a modified cryopreservation protocol

Autor: Brandon K. Hopkins, M Emamverdi, Gholamali Nehzati-Paghaleh, Mahdi Zhandi, Fatemeh Dadkhah
Rok vydání: 2016
Předmět:
Zdroj: Journal of Apicultural Research. 55:279-283
ISSN: 2078-6913
0021-8839
Popis: Better protocols and suitable extenders for semen handling and cryopreservation are required for honey bees to enhance sperm quality and fertility similar to that of other species. The purpose of the present research is the improvement of honey bee sperm quality using different semen extenders and a modified cryopreservation protocol. Three different extenders were used: (1) buffer and egg yolk (EY); (2) buffer and 0.5% soybean lecithin (SL0.5); and (3) buffer and 2% soybean lecithin (SL2). Semen was collected and then diluted with the experimental extenders. The diluted semen was gradually cooled in a refrigerator to 5 °C and immediately loaded into straws and frozen with liquid nitrogen. Motility and viability data analyzed using the GENMOD and GLM procedure of SAS software. The results demonstrate that the mean fresh sperm motility in EY (4.75 ± 0.14) and SL2 (4.5 ± 0.2) were significantly (p
Databáze: OpenAIRE