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Seminal Analysis, Cryogenic Preservation, and Fertility in Matrinxã Fish, Brycon cephalus (Günther, 1869)

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Academic year: 2019

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Figure  1  -  Ultrastructural  aspects  of  B.  cephalus  spermatozoa.  Head  (h),  midpiece  (mp),  flagellum  (f),  nucleus  (n),  proximal  centriole  (p),  basal  body  (d),  mitochondria  (m),  vesicle  (v),  cytoplasmatic  canal  (cc),  axoneme  (a)
Figure 2 - Ultrastructural aspects of fresh (C and F) and thawed (A,B,D,E,G,H) B. cephalus  spermatozoa  (TEM  and  SEM):  Head  (h),  midpiece  (mp),  flagellum  (f),  nucleus  (n),  mitochondria  (m),  vesicle  (v),  swollen  cytoplasm  membrane  (cm),
Figure  3 - Mean  hatching rate, related  to  control  test,  obtained  in all  treatments used  in  the  fertilization  assay  of  frozen  B
Table 1 - Optimal spermatozoa/eggs ratio in some teleosts updated (**) from Rurangwa (1998)

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