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dc.contributor.authorPrimavera, Jurgenne H.
dc.contributor.authorPosadas, Ruth A.
dc.date.accessioned2012-08-17T12:53:14Z
dc.date.available2012-08-17T12:53:14Z
dc.date.issued1981
dc.identifier.citationPrimavera, J.H., & Posadas, R.A. (1981). Studies on the egg quality of Penaeus monodon Fabricius, based on morphology and hatching rates. Aquaculture, 22(3):269–277.en
dc.identifier.issn0044-8486
dc.identifier.urihttp://hdl.handle.net/10862/1028
dc.descriptionContribution no. 70 of the Aquaculture Department, Southeast Asian Fisheries Development Center.en
dc.description.abstractEggs of Penaeus monodon are classified into five different types on the basis of morphological criteria and hatching rates — A1 eggs undergo normal development with 58% hatching rate; A2 eggs show delayed and/or abnormal development with 32% hatching rate; and B, C and D eggs are unfertilized and do not hatch. Wild (unablated) females have the highest proportion of A1 eggs and highest hatching rate, followed by ablated wild stock; ablated pond stock show the lowest proportion of A1 eggs and the lowest hatching rate. There is a highly linear relationship between the percentage of A1 eggs and the hatching rate in spawnings from ablated females of both pond and wild stock. Discussion concentrates on the development of these egg types, comparison with other studies and the importance to hatchery operations of these findings.en
dc.language.isoenen
dc.publisherElsevieren
dc.subjectCrustacean cultureen
dc.subjectEggsen
dc.subjectPenaeus monodonen
dc.subjectPhilippinesen
dc.titleStudies on the egg quality of Penaeus monodon Fabricius, based on morphology and hatching ratesen
dc.typeArticleen
dc.date.updated2012-08-17T12:39:55Z
dc.identifier.doi10.1016/0044-8486(81)90152-6
dc.citation.volume22
dc.citation.issue3
dc.citation.spage269
dc.citation.epage277
dc.citation.journalTitleAquacultureen


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