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SPERM ABNORMALITIES AS POSSIBLE INDICATORS OF RABBIT CHRONIC HEAT STRESS

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SPERM ABNORMALITIES AS POSSIBLE INDICATORS OF RABBIT CHRONIC HEAT STRESS

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dc.contributor.author Finzi, A.
dc.contributor.author Morera, P.
dc.contributor.author Kuzminsky, G.
dc.date.accessioned 2011-03-21T13:56:39Z
dc.date.available 2011-03-21T13:56:39Z
dc.date.issued 1995
dc.identifier.issn 1257-5011
dc.identifier.uri http://hdl.handle.net/10251/10500
dc.description.abstract [EN] Rabbit sperm abnormalities have been studied in conditions of chronic heat stress. Very significant increases (P<0.001) have been observad. The max1mum was in the 1ourth week of stress when total abnormalities were 40.5 ± 13.2 % (+122.5 % in comparison with the pi:e-stress period) ; tail abnormalitles were 26.5 ± 10.5 % (+94.9 %) ; broken spermatozoa 11.1±7.1 % (+552.9 %) ; benttails ~.3±1.7 % (+76.9 %) ; coiled tails 24.1 ± 10.3 % (+164.8 %). Head abnormalities and cytoplasmic droplets showed a decrease in the first weeks followed by a late increase. Combinad ratas have been studied to be usad as chronic heat stress indexes. Ratio between percentages of broken spermatozoa and tail abnormalities showed a quick and constant increase, while ratio between percentages of cytoplasmic droplets and coiled tails decreasea to zero lrom the second to the fourth week to increase regularly after this period. Simultaneous observation of the two ratio trends should permit to judge about the time lag rabbits have been exposed to heat stress es_ES
dc.description.abstract [FR] On a étuaié les anoma/ies des spermatozoides de lapins soumis au stress de cha/eur chronique. De tres significativas augmentations (P<0.001) de ces anomalies ont été observées. Le maximum se situe a la 4eme semaine de stress quand le total des anoma/ies a atteint la valeur de 40.5 ± 13.2 % (+122.5 % comparé a la période de préstress); les queues anormales représentent 26.5 ± 10.5 % (+94.~ %) ; fes spermatozoides cassés 11. 1 ± 7. 1 % (+55~.9 %). ; les queues incurvées 2.3 ± 1.7 % (+76.9 %) ; les queues 'fr'isées 24.1 ± 10.3 % (+164.8 %). Le nombre de tetes anormales et de gouttes cytoplasmiques a diminué dans les premieres semaines, puis augmenté les semaines suivantes. On a étudié les rapports eventuellement utilisables comme index du stress tnermique chronique. Le rapport entre les pourcentages de spermatozoides cassés et les pourcentages de queues anorm8.les a montré des valeurs rapidemenf et régulierement croissantes, tandis que le r~port entre les pourcentages de gouttes cytoplasmiques et les pourcentages des queues frisées a montré une diminution jusqu'a zéro de la 2eme a la 4eme semaine, suivi par un accroissement régulier. L'observation contemporaine des deux tendances permettrait d'évaluer pendant cambien de temps les lapins ont été exposés au stress de chaleur.
dc.description.sponsorship Research supported by the National Research Council of Italy, Special Project RAISA, Sub-project n. 3, Paper n. 2290
dc.language Inglés es_ES
dc.publisher World Rabbit Science. ICTA. UPV es_ES
dc.relation.ispartof World Rabbit Science
dc.rights Reconocimiento - No comercial (by-nc) es_ES
dc.title SPERM ABNORMALITIES AS POSSIBLE INDICATORS OF RABBIT CHRONIC HEAT STRESS es_ES
dc.type Artículo es_ES
dc.date.updated 2011-03-21T13:36:22Z
dc.identifier.doi 10.4995/wrs.1995.256
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Finzi, A.; Morera, P.; Kuzminsky, G. (1995). SPERM ABNORMALITIES AS POSSIBLE INDICATORS OF RABBIT CHRONIC HEAT STRESS. World Rabbit Science. 3(4). doi:10.4995/wrs.1995.256. es_ES
dc.relation.publisherversion https://doi.org/10.4995/wrs.1995.256
dc.description.volume 3
dc.description.issue 4
dc.identifier.eissn 1989-8886 es_ES


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