Studies on the egg quality of Penaeus monodon Fabricius based on morphology and hatching rates

Eggs of P. monodon are classified into 5 different types on the basis of morphological criteria and hatching rates: A sub(1) eggs, which undergo normal development with 58% hatching rate; A sub(2) eggs, which show delayed and/or abnormal development with 32% hatching rate; B eggs, which are unfertilized and characterized by irregular cytoplasmic formation; C eggs, which are unfertilized and show no change in appearance; and D eggs, which are unfertilized and show extensive bacterial presence. The establishment of a highly linear relationship between percent A sub(1) eggs and hatching rate provides a useful tool to aid the hatchery technician in determining which spawnings to reject outright and which to rear through the larval and post-larval stages.

Bibliographic Details

Main Authors:	Primavera, Jurgenne, Posadas, Ruth
Format:	article biblioteca
Language:	English
Published:	1980
Subjects:	Aquaculture, Biology, Crustacean culture, Eggs, Hatching, Quality control, Penaeus monodon,
Online Access:	http://hdl.handle.net/1834/34086
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