| Registro completo |
| Provedor de dados: |
Arq. Bras. Med. Vet. Zootec.
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| País: |
Brazil
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| Título: |
Reproductive biology of Pêga Jackasses: characteristics of sperm-rich fraction collected using the split-ejaculate method
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| Autores: |
Carvalho,L.E.
Silva Filho,J.M.
Palhares,M.S.
Sales,A.L.R.
Gonczarowska,A.T.
Oliveira,H.N.
Resende Jr.,T.
Rossi,R.
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| Data: |
2016-08-01
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| Ano: |
2016
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| Palavras-chave: |
Jackass
Split-ejaculate method
Sperm-rich fraction
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| Resumo: |
ABSTRACT The aim of this study was to evaluate the physical and morphological characteristics of the sperm-rich fraction of jackass semen. To this end, 130 ejaculates from five Pêga jackasses were collected using an open model artificial vagina. The sperm-rich fraction was collected using the split-ejaculate method and assessed for the number of mounts/ejaculate, for physical and morphological characteristics of the semen and number of doses produced/ejaculate. It was observed that all characteristics evaluated differed among the five jackasses, except for the head defect rates. The mean values obtained for the jackass sperm-rich fraction collected were: number of mounts/ejaculate - 1.27; semen volume - 20.21mL; motility - 84.53%; vigor - 4.46; motility after dilution - 80.10%; sperm concentration/mL - 894.38 x 106; total sperm/ejaculate - 16.14 x 109; number of insemination doses/ejaculate (400x106 motile sptz) - 33.39; number of insemination doses/ejaculate (800 x 106 motile sptz) - 16.69; and percentage of normal sperm - 90.46%. Thus, in the present experiment the split-ejaculate method using an open artificial vagina worked well with the jackasses, and the sperm-rich fraction of the ejaculate of Pêga jackasses had high quality and sperm concentration, allowing its use for semen processing without reducing the number of insemination doses produced per ejaculate.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000400832
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| Editor: |
Universidade Federal de Minas Gerais, Escola de Veterinária
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| Relação: |
10.1590/1678-4162-7939
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| Formato: |
text/html
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| Fonte: |
Arquivo Brasileiro de Medicina Veterinária e Zootecnia v.68 n.4 2016
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| Direitos: |
info:eu-repo/semantics/openAccess
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