ANALISIS MORFOMETRIK DAN MERISTIK NILA (Oreochromis sp.) STRAIN LARASATI F5 DAN TETUANYA
Abstract: Cross-breeding
between Janti’s Black Tilapia (female parent) and Janti’s White Tilapia (male
parent) has been performed by Institution of Germination and Freshwater Fish
Farming which is located at Janti Village – District of Klaten and produced
Tilapia Larasati (Red Tilapia Strain Janti) F5. This study aimed to compare the
Tilapia Larasati F5 and it parents based on morphometric and meristic
characters, and to know the length-weight relationship of three strains of
tilapia. Analysis of morphometric characters performed by Principal Component
Analysis (PCA) while the meristic character analyzed descriptively by reviewing
the literature. Kinship of three strains were tested by cluster analysis while
length-weight relationship analysis was conducted to determine the pattern of fi
sh growth and condition factor . The scatter plot results of the 12
morphometric characters showed that Tilapia Larasati F5 has a similar body form
with Janti’s Black Tilapia and has a slightly different form of Janti’s White
Tilapia especially in the part of head. Tilapia Larasati F5 and Janti’s Black
Tilapia obtained on a longer body, longer forehead, longer jaw (big mouth), and
long face and long nose. It result supported by cluster analysis which showed
that Tilapia Larasati F5 has a closer kinship distance to Janti’s Black Tilapia
viewed from morphometric characters. Analysis of meristic characters showed
that the number of scales on the dorsal fi n in front of the Tilapia Larasati F5
and Janti’s Black Tilapia amounted to more than the Janti’s White Tilapia.
Third tilapia strains had isometric growth pattern. Analysis of the value of
condition factor indicates that Tilapia Larasati F5 has the best body
condition.
Keywords: breeding, meristics,
morphometric, principal component analysis, Tilapia Larasati F5
Penulis: Muhotimah Muhotimah,
Bambang Triyatmo, Susilo B. Priyono, Toni Kuswoyo
Kode Jurnal: jpperikanandd130668