Sains Malaysiana 54(1)(2025): 1-8
http://doi.org/10.17576/jsm-2025-5401-01
Nutritional
Profile Comparison of Wild and Tagal Indigenous Mahseer (Tor duoronensis) from
Borneo
(Perbandingan Profil Nutrisi Mahseer Asli Liar dan Tagal (Tor duoronensis) dari Borneo)
ROSSITA
SHAPAWI*, NAJAMUDDIN ABDUL BASRI, ANNITA YONG SEOK-KIAN, LIM LEONG SENG, CHING
FUI FUI
Higher
Institution Centre of Excellence (HICOE), Borneo Marine Research Institute, Universiti Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu,
Sabah, Malaysia
Received: 25
January 2024/Accepted: 1 November 2024
Abstract
Little
is known about the nutritional status of mahseer (Tor duoronensis),
a high-value indigenous freshwater species of Borneo. The present study
evaluated the proximate, fatty acid, and amino acid compositions in carcasses
of juvenile wild and conserved (tagal system)
mahseer. The crude lipid content of the wild-caught fish was significantly
higher (P < 0.05) than tagal fish. Mahseer
from tagal system contained significantly
higher (P < 0.05) fatty acid concentrations of C14:0, C15:0, C16:0,
C16.1, C17:0, C18:0, C18:1 n9t, C20:0, C20:4n6, C20:5n3, and C22:6n3, and lower
concentrations of C12:0, C18:1 n9c, C18:2 n6c, C18:3 n3, C20:1, and C21:0 fatty
acids than wild mahseer. The percentages of total saturated fatty acids and n-3:n-6 ratio were higher in the tagal system than in wild mahseer. Tor duoronensisharvested
from the tagal system showed higher total
amino acid concentration (756.74 ± 225.21 ng g-1) compared to wild
fish (652.10 ± 249.50 ng g-1). Among the amino acid recorded,
cysteine content was high in both wild (147.12 ± 206.62 ng g-1) and tagal fish (164.37 ± 229.39 ng g-1). Nine
essential amino acids (histidine, arginine, threonine, valine, methionine,
lysine, isoleucine, and phenylalanine) that are important in fish’s metabolic
and physiological responses were present in both fish groups. This study
indicates that the biochemical composition of Tor duoronensis was significantly influenced by their habitat, and these differences may be
explained by the components of the fish’s diet. The information generated from this study is beneficial for developing
nutritionally balanced practical feed for this species.
Keywords: Body
composition; feed development; Mahseer; Tagal system; Tor duoronensis
Abstrak
Setakat ini, sedikit yang diketahui mengenai status pemakanan ikan kelah (Tor duoronensis),
yang merupakan salah satu spesies air tawar asli bernilai tinggi di Borneo. Kajian ini membandingkan komposisi proksimat, asid lemak dan asid amino ikan kelah juvenil yang liar dan ikan kelah juvenil yang dilindungi (sistem Tagal). Kandungan lemak mentah ikan liar adalah signifikan lebih tinggi (P < 0.05) daripada ikan Tagal. Ikan kelah daripada sistem Tagal mengandungi kepekatan asid lemak yang signifikan lebih tinggi (P < 0.05) bagi C14:0,
C15:0, C16:0, C16.1, C17:0, C18:0, C18:1 n9t, C20:0, C20:4n6, C20:5n3 dan
C22:6n3 dan kepekatan lebih rendah bagi C12:0, C18:1
n9c, C18:2 n6c, C18:3 n3, C20:1 dan C21:0 berbanding kelah liar. Peratusan asid lemak tepu keseluruhan dan n-3:n-6 adalah lebih tinggi bagi ikan kelah sistem tagal berbanding ikan kelah liar. Tor duoronensis yang ditangkap dari sistem Tagal menunjukkan kepekatan asid amino keseluruhan yang lebih tinggi (756.74 ± 225.21 ng
g-1) berbanding ikan liar (652.10 ± 249.50 ng g-1). Bagi kandungan asid amino, didapati bahawa kandungan sisteina adalah tinggi dalam kedua-dua kelah liar
(147.12 ± 206.62 ng g-1) dan kelah Tagal (164.37 ± 229.39 ng g-1). Sembilan asid amino penting (histidina, arginina, treonina, valina, metionina, lisina, isoleusina dan fenilalanina) yang penting dalam tindak balas metabolik dan fisiologi ikan ditemui dalam kedua-dua kumpulan ikan. Kajian ini menunjukkan bahawa komposisi biokimia Tor duoronensis dipengaruhi secara signifikan oleh habitat mereka dan perbezaan ini mungkin dapat dijelaskan oleh komponen diet ikan tersebut. Maklumat yang dihasilkan daripada kajian ini berguna untuk membangunkan makanan seimbang secara nutrisi untuk spesies ini.
Kata kunci: Kelah; komposisi badan; pembangunan makanan; sistem Tagal; Tor duoronensis
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*Corresponding author; email:
rossita@ums.edu.my