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Morphological variability of hybrid tilapia farmed in UPMKB

Kumar, Barathern Krishna (2023) Morphological variability of hybrid tilapia farmed in UPMKB. [Project Paper] (Submitted)

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Abstract

A study was carried out to determine the morphological variability of hybrid tilapia in UPMKB farm. The total length of the observed fish ranged from 17.8 – 30.2 cm. Body measurement and proportions are extensively used for identification of this species. The following 18 measurements are determined for each fish: Total length (TL); Standard length (SL); Body depth (BD); Pre-dorsal length (PDL); Pre-pectoral length (PPCL); Pre-pelvic length (PPVL); Pre-anal length (PAL); Depth of caudal peduncle (DCP); Length of caudal peduncle (LCP); Head length (HL); Eye diameter (ED); Snout length (SNL); Upper jaw length (UJL); Lower jaw length (LJL); Caudal fin length (CFL); Pectoral fin length (PFL); Length of dorsal fin base (LDFB); Length of anal fin base (LAFB). The rate of growth of different morphological body parts of the fish in relation to its total length is studied. Additionally, the total length and body weight relationship is found to be a straight line in logarithmic scale expressed as Log BW = 2.7951 Log TL - 14409. The value of regression co-efficient obtained for the length-weight relationship is 2.795. This finding suggests that selection for growth using this equation is a good alternative for measuring weight in the field, when accurate weighing balances are not available. Hence, the present study provides the information of the various body parts measurements of hybrid tilapias and establishes mathematical equations relating to these various morphometric relationships which can be utilized for the conversion of one measurement into another.

Item Type: Project Paper
Faculty: Faculty of Agriculture and Forestry Sciences
Depositing User: Mr. Azman Mohamad
Date Deposited: 12 Oct 2023 07:20
Last Modified: 12 Oct 2023 07:20
URI: http://psaspb.upm.edu.my/id/eprint/1543

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