Voltar
Artigo Acesso aberto Produção Nacional Revisado por pares
BIBTEX RIS

Efeito de três diferentes fontes de extrato de pituitárias na indução gonadal em machos e fêmeas de pacu (<em>Piaractus mesopotamicus</em>)

2005; Editora da Universidade Estadual de Maringá (Eduem); Volume: 27; Issue: 4 Linguagem: Inglês

10.4025/actascianimsci.v27i4.1146

ISSN

1807-8672

Autores

Gentil Vanini de Moraes, Danilo Pedro Streit, Ricardo Pereira Ribeiro, Eduardo Shigueiro Sakaguti, Jayme Aparecido Povh, Hedem Luiz Marquez Moreira,

Tópico(s)

Sperm and Testicular Function

Resumo

Male and female pacus (Piaractus mesopotamicus) were induced with broiler chicken (BCPE), rabbit (RPE), and carp (CPE) pituitary extracts. The parameters for spermatic vigor, progressive motility, fertilization and hatching rate, according to semen origin, did not show any differences among the treatments (p > 0.05). RPE produced the lowest (p < 0.05) semen volume and the highest spermatozoa number and concentration (p < 0.05). No difference was observed (p > 0.05) in the total rate of abnormal spermatozoa among the treatments, but the secondary pathologies were higher (p < 0.05) in the treatment with RPE. The females induced with RPE did not present stimulus for hatching. No differences (p > 0.05) between BCPE and CPE were found for accumulated thermal unit, number of oocytes/spawning grams, fertilization and hatchery rates according to treatment origin. The result indicates that BCPE use is recommended for gonadal induction of P. mesopotamicus

Referência(s)