| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
Seminal analysis, cryogenic preservation, and fertility in matrinxã fish, Brycon cephalus (Günther, 1869)
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| Autores: |
Ninhaus-Silveira,Alexandre
Foresti,Fausto
Veríssimo-Silveira,Rosicleire
Senhorini,José Augusto
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| Data: |
2006-07-01
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| Ano: |
2006
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| Palavras-chave: |
Semen characteristics
Cryopreservation
Brycon cephalus
Ultrastructure
Fish
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| Resumo: |
Aiming to improve fish reproduction techniques, the characterization and cryopreservation of semen of Brycon cephalus were performed. The seminal characteristics observed were: an almost transparent, milky semen with a mean volume of 4mL, and sperm concentration of 9.617±1.630 x 10(6) spermatozoa/mm³. Spermatozoa (length = 31.288 ±4.47µm) were of the aquasperm type and displayed a small, round head (length = 1.727 ±0.18 µm; width = 1.752 ±0.17µm) without acrosomal vesicle, nucleus with highly condensed chromatin forming coarse clots and centriolar complex located in the nuclear fossa; a midpiece (length = 2.561±0.44µm), narrowed rearward, with a cytoplasmic canal; and a flagellum (length = 29.521 ±4.37µm). Fertilization tests with thawed semen demonstrated a significant effect (alpha= 0.05) on the increase of thawed semen fertility with diluent type B in both 0.5mL and 4.0 mL straws. No significant effect (alpha= 0.05) on hatching rate was observed in both straw sizes used.
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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=S1516-89132006000500015
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-89132006000500015
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.49 n.4 2006
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| Direitos: |
info:eu-repo/semantics/openAccess
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