Light and fine structural studies of natural and artificially induced egg growth of penaeid shrimp.

dc.acquisition-srcen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorDuronslet, M.J.en_US
dc.contributor.authorYudin, A.I.en_US
dc.contributor.authorWheller, P.S.en_US
dc.contributor.authorClark, W.H., Jr.en_US
dc.contributor.otheren_US
dc.date.accessioned2010-02-15T16:53:44Z
dc.date.available2010-02-15T16:53:44Z
dc.date.issued1975en_US
dc.degreeen_US
dc.description13 p.en_US
dc.description-otheren_US
dc.description.abstractEgg differentiation in penaeids induced to undergo gonad maturation by eyestalk ablation has been examined with light and electron microscopes. Controls consisted of both wild brown and white shrimp (Penaeus aztecus and P. setiferus) caught south of Freeport, Texas and off Galveston, Texas, in various stages of ovarian maturation. These animals were sacrificed and ovarian tissues were excised and fixed in a cold (4 C) aldehyde mixture, post- fixed in osmic acid, dehydrated in acetone, and embedded in an epoxy resin. Experimental animals included laboratory-reared, wild immature, and wild mature animals which had resorbed ovarian tissues. These animals were ablated with hot surgical clamps and sacrificed at various time intervals. Tissues were prepared as described for the controls. The development of ova from experimental animals were compared to control animals. In the stages early oocyte, cisternal phase, platelet phase, cortical rod phase, and mature oocyte, the experimental oocytes appeared the same as the control tissues. Though further studies (e.g., biochemical and zygote development) are needed, these preliminary fine structural studies are encouraging. While ablation, a mechanical process, may not be the technique of choice for maturing shrimp, it does indicate that manipulation of the endocrine system will be successful.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeGalveston Bayen_US
dc.geo-codeFreeporten_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/19768
dc.latitudeen_US
dc.locationNOT AVAILABLE IN-HOUSE.en_US
dc.longitudeen_US
dc.notesen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries2006.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesGulf Coastal Fish. Ctr. Galveston Contrib. No. 203en_US
dc.subjectpenaeid shrimpen_US
dc.subjectPenaeus aztecusen_US
dc.subjectPenaeus setiferusen_US
dc.subjectwhite shrimpen_US
dc.subjectbrown shrimpen_US
dc.subjectreproductionen_US
dc.subjectbiological developmenten_US
dc.titleLight and fine structural studies of natural and artificially induced egg growth of penaeid shrimp.en_US
dc.typeBooken_US
dc.universityen_US
dc.vol-issueen_US

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