STUDIES ON FECUNDITY, SEX RATIO AND CROSSBREEDING IN DIFFERENT STRAINS OF GUPPY
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Authors
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A. D. PALAV
Marine Biological Research Station (Konkan Agricultural University),
Peth Killa, Ratnagiri - 415 612.
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S. G. BELSARE
Marine Biological Research Station (Konkan Agricultural University),
Peth Killa, Ratnagiri - 415 612.
Abstract
Studies on the fecundity, sex ratio and crossbreeding in different
strains of the guppy Poecilia reticulata such as Butterfly I, Butterfly II
and Cobra strains was carried out. The highest fecundity among Butterfly
I strain was at the 5th breed while it was highest at the 6th and 8th breed
among Butterfly II and Cobra strain respectively. The average male
percentage was 39.88%, 43.39% and 45.02% among Butterfly I, Butterfly II
and Cobra strains respectively. The crossbreeding of strains showed good
results among crossbreeds of ButterflyQII ( ~) X Cobra ( (1) and Butterfly
I(~) X Cobra ( (1 ). The crossbreed among the Butterfly I(~) X Cobra ( 8)
proved to be excellent from the point of view of more percentage, rapid
growth, and brilliant body and finnage colouration.
