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Seasonal effects on semen quality in Black Baladi and White New Zealand rabbit.

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Seasonal effects on semen quality in Black Baladi and White New Zealand rabbit.

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dc.contributor.author Safaa, H.M.
dc.contributor.author Emarah, M.E.
dc.contributor.author Saleh, N.F.A.
dc.date.accessioned 2010-08-02T11:04:34Z
dc.date.available 2010-08-02T11:04:34Z
dc.date.issued 2010-08-02
dc.identifier.issn 1257-5011
dc.identifier.uri http://hdl.handle.net/10251/8513
dc.description.abstract [EN] A total of 32 sexually mature rabbit bucks (at 6th month of age) were used in this experiment to study the effects of breed (Black Baladi -BB- vs. White New Zealand -WNZ-) and season (summer vs. winter) on libido and seminal parameters. The experimental design was completely random with four groups arranged factorially (two breeds and two seasons) with eight rabbits in each group and three months per season. The results obtained from this study indicated that, libido (14.5 vs. 21.9 sec) and physical semen characteristics represented by the volume of semen per ejaculate without gel fractions (0.70 vs. 0.49 mL), sperm-cell concentration (703 vs. 597¿106/mL), total sperm output (513 vs. 293¿106/ejaculate), sperm abnormalities (11.6 vs. 14.0%), acrosomal damages (8.6 vs. 11.5%), dead spermatozoa (13.9 vs. 16.0%), and advanced sperm motility (63.2 vs. 57.1%) were signifi cantly (P<0.01) better on BB rabbit bucks than on WNZ breed. In addition, these parameters proved to be signifi cantly (P<0.01) better in winter season (15.8 sec, 0.68 mL, 702¿106/mL, 487¿106/ejaculate, 10.7%, 8.4%, 12.7%, and 65.6%, respectively) than in summer (20.6 sec, 0.52 mL, 598¿106/mL, 319¿106/ejaculate, 15.0%, 11.7%, 17.3%, and 54.7%, respectively). Following the hypo-osmotic swelling test (HOST) at 75 mOsmol/L during incubation at 37oC for 20 min, the percentages of sperm motility, swollen spermatozoa, and spermatozoa with coiled tails were higher for BB bucks (16.98, 44.08, and 39.13) than for the WNZ breed (7.2, 32.3, and 26.0). This was also the case in the winter season (14.4, 42.7, and 38.5) when compared to summer (9.8, 33.7, and 26.6), respectively. We concluded that, under Egyptian conditions, both libido and semen quality in BB bucks seems to be better than those displayed by the WNZ bucks. Nevertheless, overall semen characteristics were better in winter than in the summer season. es_ES
dc.language Inglés es_ES
dc.publisher World Rabbit Science. ICTA. UPV en_EN
dc.relation.ispartof World Rabbit Science
dc.rights Reconocimiento - No comercial (by-nc) es_ES
dc.subject Rabbit es_ES
dc.subject Semen characteristics es_ES
dc.subject Season es_ES
dc.subject Breed es_ES
dc.title Seasonal effects on semen quality in Black Baladi and White New Zealand rabbit. es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.4995/wrs.2008.640 es_ES
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Safaa, H.; Emarah, M.; Saleh, N. (2010). Seasonal effects on semen quality in Black Baladi and White New Zealand rabbit. World Rabbit Science. 16(1). doi:10.4995/wrs.2008.640 es_ES
dc.relation.publisherversion https://doi.org/10.4995/wrs.2008.640 es_ES
dc.description.volume 16
dc.description.issue 1
dc.identifier.eissn 1989-8886 es_ES


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