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    Título
    Sperm parameters on Iberian red deer: Electroejaculation and post-mortem collection
    Autor
    Martínez, A. F.
    Martínez Pastor, FelipeAutoridad BuleriaORCID
    Álvarez García, MercedesAutoridad BuleriaORCID
    Fernández Santos, María Rocío
    Esteso, Milagros
    Paz Cabello, Paulino deAutoridad BuleriaORCID
    Garde López-Brea, Julián
    Anel Rodríguez, LuisAutoridad BuleriaORCID
    Facultad/Centro
    Facultad de Ciencias Biologicas y Ambientales
    Área de conocimiento
    Biologia Celular
    Datos de la obra
    Theriogenology, 2008, vol. 70, n. 2
    Editor
    Elsevier
    Fecha
    2008-07-15
    Abstract
    Artificial reproductive technologies (ART) for cervids have improved, but a need remains for the collection of basic data. We studied two models of sperm collection in Iberian red deer, post-mortem (PM) in a wild population (179 samples) and by electroejaculation (EE) in a farmed population (37 samples), recording: testicular and epididymal weight, testicular diameter, sperm quantity, pH and osmolality and spermatozoa quality (motility by CASA, abnormal forms, cytoplasmic droplets, viability and acrosomal status). We tested the relationship of these parameters with stag age and compared the two models (PM and EE; medians showed). Genitalia parameters were linearly related to stag age (testicular diameter: 31.5–50.5 mm for 2–9 years). Total number of spermatozoa collected were PM: 2.5 × 109 and EE: 3.6 × 109 (P > 0.05), increasing with age only for PM. We found a positive relationship between testicular size and spermatozoa collected for PM. Osmolality and pH were PM: 6.28 and 378 mOsm/kg; EE: 7.63 and 309 mOsm/kg (P < 0.05). The pH increased with age only for EE. Percentage of motile spermatozoa was similar for PM and EE, but motility quality was lower for PM. Abnormal forms, proximal and distal droplets were lower for EE (22%, 1.3%, 1.5% vs. PM: 23%, 4.3%, 83%). Viability was similar (74%) and intact acrosomes were higher for EE (97% vs. 89%). Both PM and EE samples could be used for germplasm banking. This study contributes with new data on red deer spermatology and for the development of ART in cervids.
    Materia
    Veterinaria
    Palabras clave
    Red deer
    Epididymal spermatozoa
    Electroejaculation
    Sperm evaluation
    Testicular growth
    Peer review
    SI
    URI
    http://hdl.handle.net/10612/10609
    Versión del editor
    https://www.sciencedirect.com/science/article/pii/S0093691X08001660#!
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