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Survival, maturation, fecundity and hatching rates of unablated and ablated Penaeus indicus H.M. Edwards from brackishwater ponds

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Date
1982
Author
Primavera, Jurgenne H.
Young, Thomas
de los Reyes, Carol
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Abstract
Penaeus indicus H. M. Edwards harvested after three months of rearing in brackishwater ponds and averaging 6.9 g for females and 5.6 g for males were stocked in two 12 cu m flowthrough ferrocement tanks at 240 females and 200 males per tank. The females were ablated on one eyestalk in one tank and remained unablated in the other tank ; all males were unablated. Ablated females spawned up to 7 times per female; unablated females spawned up to only 3 times during the two month duration of the experiment. Ablated females produced a total number of 17.5 x 106 eggs, 6.6 x 106 nauplii, and an average of 23,480 eggs/spawning and 37.8 % hatching rate from a total of 757 spawnings. Unablated females produced a total of 2.0 x 106 eggs, 1.1 X 106 nauplii, and an average of 26,990 eggs/spawning and 53.9 % hatching rate from a total of 74 spawnings. Survival of ablated females was 53.5 % compared to 69.4 % for unablated females ; males in both tanks averaged more than 90% survival.
Description
ALSO IN: Quarterly Research Report / SEAFDEC. Aquaculture Department, 3(3), 14-17 1979.
URI
http://hdl.handle.net/10862/236
Suggested Citation
Primavera, J. H., Young, T., & de los Reyes, C. (1982). Survival, maturation, fecundity and hatching rates of unablated and ablated Penaeus indicus H.M. Edwards from brackishwater ponds. In E. G. Silas, P. V. Rao, P. V. R. Nair, K. Alagarswami, T. Jacob, K. C. George, … A. G. Ponniah (Eds.), Proceedings of the Symposium on Coastal Aquaculture held at Cochin from January 12 to 18, 1980. Part 1: Prawn Culture (pp. 48–54). Cochin, India: The Marine Biological Association of India.
Subject
eyestalk extirpation ASFA; induced ovulation ASFA; shrimp culture ASFA; Penaeus indicus
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  • AQD Conference Proceedings [296]

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