학술논문

Spermatophore and sperm quality of the pink shrimp Farfantepenaeus paulensis fed with fresh food supplemented with pollen and paprika
Document Type
Article
Source
Aquaculture. Mar2013, Vol. 380-383, p29-32. 4p.
Subject
*SPERMATOPHORES
*SPERMATOZOA
*PANDALUS borealis
*ANIMAL nutrition
*DIETARY supplements
*POLLEN as food
*PAPRIKA
Language
ISSN
0044-8486
Abstract
Abstract: An inadequate feeding strategy can compromise the larval production of penaeids through a decline in reproductive performance, including that of males. For Farfantepenaeus paulensis, it is known that the feed should contain fresh food to avoid a loss of spermatophore and sperm quality. However, new strategies need to be tested to improve male reproductive performance in captivity, particularly those aimed at decreasing melanization, which causes reproductive tract deterioration. Thus, the present study aims to evaluate the effect of supplementation of fresh food with pollen and paprika on the spermatophore and sperm quality of F. paulensis. An experiment was conducted composed of three dietary treatments: the control treatment, consisting of fresh foods (squid, blue crab and fish) without additional supplementation; the pollen treatment, consisting of fresh food supplemented with 2% pollen; and the paprika treatment, consisting of fresh food supplemented with 2% paprika. Food consumption was measured over three successive days for each treatment. Spermatophore and sperm quality was measured at the beginning (day zero) and at the end (day 30) of the experiment in terms of spermatophore weight, sperm count, percentage of normal sperm and presence of melanization. There was no significant difference in food consumption among the treatments. Shrimps fed with fresh food supplemented with pollen showed higher sperm counts, zero melanization and higher survival, whereas supplementation with paprika did not affect spermatophore or sperm quality. [Copyright &y& Elsevier]