Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/48929
Title: The effect of removal of seminal plasma, egg yolk level and season on sperm freezability of Canary buck (Capra hircus)
Authors: Cabrera, F. 
González, F.
Batista, M. 
Calero, P. 
Medrano, A.
Gracia, A. 
Keywords: Goat Spermatozoa
Angora-Goat
Semen
Frozen
Viability, et al
Issue Date: 2005
Publisher: 0936-6768
Journal: Reproduction in Domestic Animals 
Abstract: Goat semen is different from that of other domestic species in its limited tolerance to the inclusion of egg yolk in the freezing medium, and this tolerance depends on the presence of enzymes in the seminal plasma that react with egg yolk, producing toxic compounds to the spermatozoa. Moreover, the goat is a seasonal breeder that shows variations in semen quality throughout the year, and those variations may affect semen freezability; hence in freezing protocols, for instance, removal of seminal plasma (washing) yields varying results. This work was designed to study this problem in Canary goats: semen from six males was collected in spring, autumn or winter, washed or non-washed, diluted in a freezing extender with 1.5, 6 or 12% egg yolk, frozen, and thawed after 2 days, 2 or 6 months of cryopreservation. The effect of egg yolk concentration in the freezing extender was far more important than the effect of washing or season on sperm cryosurvival. The quality of frozen-thawed semen tended to improve as egg yolk concentration increased regardless of the effects of season, washing or period of cryopreservation. Washing produced a positive effect on frozen-thawed semen collected during spring or autumn, but the difference decreased as the concentration of yolk increased. However, washing produced a negative effect on frozen-thawed semen collected during winter, diluted with either 6 or 12% egg yolk. There was no apparent seasonal effect on gross measures of sperm production but the seasonal effect was ever present and was reinforced by freezing.
URI: http://hdl.handle.net/10553/48929
ISSN: 0936-6768
DOI: 10.1111/j.1439-0531.2005.00544.x
Source: Reproduction in Domestic Animals[ISSN 0936-6768],v. 40, p. 191-195
Appears in Collections:Artículos
Show full item record

SCOPUSTM   
Citations

61
checked on Dec 1, 2024

WEB OF SCIENCETM
Citations

56
checked on Nov 24, 2024

Page view(s)

107
checked on Oct 5, 2024

Google ScholarTM

Check

Altmetric


Share



Export metadata



Items in accedaCRIS are protected by copyright, with all rights reserved, unless otherwise indicated.