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A preliminary study on the use of jenny colostrum to improve quality in extenders for freezing donkey semen.

07:00 EST 24th January 2019 | BioPortfolio

Summary of "A preliminary study on the use of jenny colostrum to improve quality in extenders for freezing donkey semen."

Sperm quality in donkeys (Equus asinus) after freezing thawing is still considered lower than that from other animals, including horses. The aim of this study was to test a new freezing extender supplemented with jenny colostrum on donkey sperm. After thawing, we evaluated sperm motility by means of computer-assisted analysis, viability by SYBR-14 and propidium iodide (PI), membrane functional integrity by HOS-test and acrosome integrity by isothiocyanate conjugated with peanut agglutinin (FITC-PNA) and PI. Ejaculates were collected from five fertile Donkeys. Sperm samples were pooled, diluted and cryopreserved into three experimental extender groups: BotuCrio, lactose-extender supplemented with egg yolk (20%) and lactose-extender supplemented with jenny colostrum (20%). The results demonstrated that lactose-jenny colostrum samples displayed significantly higher values in almost all parameters evaluated (p < 0.05) compared with the other two extenders after thawing (BotuCrio and lactose-egg yolk based extender, respectively) -Total Motility, Viability, HOS test, VCL, VSL and VAP. Acrosome status, LIN, STR and WOB despite showing lower values, none of them were statistically significant (p > 0.05). In conclusion, the extender containing jenny colostrum can be successfully used for donkey semen crypreservation and could effectively improve donkey sperm qualities after freezing -thawing.

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This article was published in the following journal.

Name: Cryobiology
ISSN: 1090-2392
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