Produção Nacional
Revisado por pares
Parâmetros qualitativos do sêmen de dourado (Salminus maxillosus) em cativeiro
2008; INSTITUTO DE PESCA - APTA - SEC. DE AGR. E ABAST. - SP; Volume: 34; Issue: 3 Linguagem: Inglês
ISSN
1678-2305
AutoresDanilo Pedro Streit, Rodolfo Nardez Sirol, Ricardo Pereira Ribeiro, Gentil Vanini de Moraes, Juliana Minardi Galo, Melanie Digmayer,
Tópico(s)Aquaculture Nutrition and Growth
ResumoSeminal characteristics of thirty-five dourado (Salminus maxillosus) fish were investigated under pre- and post-hormonal induction by extract of carp pituitary. The progressive motility was increased from 67.31% up to 76.31% after the hormonal treatment, unlike the spermatic vigor which had similar performance under both conditions. The spermatozoa concentration was reduced from 15.92 x 109, before the hormonal induction, to 13.13 x 109 spermatozoa/mL (P<0.05) after the hormonal induction. The percentage of normal spermatozoa in pre-hormonal induction was 56.74% and the estimate in post-hormonal induction was 48.01%: a significant reduction (P<0.05). No significant differences were detected in the percentage of primary pathologies, but in the secondary ones the estimate of 13.3% in pre-hormonal induction was increased (P<0.05) up to 19.02% in post-hormonal induction. Bent tail (primary) and shoe hook tail (secondary) were the most frequent morphological pathologies.
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