Abstract
Penaeus monodon were reared in captivity in tanks over three generations with full pedigree information. Weights of animals were measured at six ages between 7 and 54 weeks along with survival in each period. Females were more variable in weight than males after week 16, and variances between each sex were standardised prior to estimation of heritability and genetic correlations. The phenotypic mean (standard deviation) of weights at week 40 were 35 (6) g for males and 44 (10) g for females. Heritability with standard errors at 16, 30, 40 and 54 weeks were 0.56 ± 0.04, 0.55 ± 0.07, 0.45 ± 0.11 and 0.53 ± 0.14 respectively. Heritability for family survival, determined from mean survival within each family, was 0.51 + 0.18, 0.36 ± 0.18 and 0.71 ± 0.17 over periods 4 to 10, 10 to 16 and 16 to 32 weeks respectively. The genetic correlations between weight and survival revealed no significant trend. The results from this study indicate significant concurrent improvements in both growth and survival are possible through selective breeding.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
