<b>Effects of three different sources of pituitary extract on gonadal inducer in male and female pacu (<em>Piaractus mesopotamicus<em>)</b> - DOI: 10.4025/actascianimsci.v27i4.1146

  • Danilo Pedro Streit Júnior UEM
  • Gentil Vanini de Moraes UEM
  • Ricardo Pereira Ribeiro UEM
  • Eduardo Shigueiro Sakaguti UEM
  • Jayme Aparecido Povh UEM
  • Hedem Luiz Marquez Moreira UFPEL
DOI: https://doi.org/10.4025/actascianimsci.v27i4.1146

Abstract

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

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Author Biography

Gentil Vanini de Moraes, UEM
Atualmente é professor associado da Universidade Estadual de Maringá, Centro de Ciências Agrárias, Departamento de Zootecnia, Estado do Paraná. Tem experiência na área de Medicina Veterinária, com ênfase em Reprodução Animal, atuando principalmente nos seguintes temas: sêmen, reprodução, embriões, caprinos e bovinos, apesar de trabalhar também com outros animais de produção. Currículo Lattes
Published
2008-03-14
How to Cite
Streit Júnior, D. P., Moraes, G. V. de, Pereira Ribeiro, R., Shigueiro Sakaguti, E., Povh, J. A., & Marquez Moreira, H. L. (2008). <b>Effects of three different sources of pituitary extract on gonadal inducer in male and female pacu (<em>Piaractus mesopotamicus<em>)</b&gt; - DOI: 10.4025/actascianimsci.v27i4.1146. Acta Scientiarum. Animal Sciences, 27(4), 439-447. https://doi.org/10.4025/actascianimsci.v27i4.1146
Issue
Vol 27 No 4 (2005)
Section
Animal Breeding and Reproduction

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