Sains Malaysiana 46(3)(2017):
429–437
http://dx.doi.org/10.17576/jsm-2017-4603-10
Carcass Yield, Non-Carcass Parts,
Internal Organs and Meat Quality Characteristics of Karayaka Male Lambs with
Different Birth Weight Fed Free-Choice Feeding
(Hasil Bangkai, Bahagian Bukan-Bangkai, Organ Dalaman
dan Ciri Kualiti Daging Biri-biri Jantan Karayaka dengan Berat Kelahiran
Berbeza Diberi Pemakanan Pilihan Sendiri)
ARDA YILDIRIM1*, ZAFER ULUTAŞ2, NUH OCAK3 & MUHAMMET KAPTAN4
1Department of Animal Science, Faculty of Agriculture,
University of Gaziosmanpaşa,
Tokat, Turkey
2Department of Animal Production and Technologies, Faculty of
Agricultural Sciences
and Technologies, University of
Niğde, Niğde, Turkey
3Department of Animal Science, Faculty of Agriculture,
University of Ondokuz May?s, Samsun
Turkey
4Department of Plant and Animal Production, Gokcebey Mithat
Mehmet Canakci
Vocational School, University of Bulent
Ecevit, Zonguldak, Turkey
Diserahkan: 11 Jun 2015/Diterima: 4 Ogos
2016
ABSTRACT
In order to investigate the changes
in meat quality characteristics and some serum metabolites as well
as carcass yield, non-carcass parts, internal organs of lambs as
influenced by birth weight (BtW) and feeding system (FS), 28 Karayaka male lambs (150
days of age) obtained from four comparable groups that consisted
of seven replicates according to a 2 × 2 factorial arrangement
for 2 BtW (low, 4.1 ± 0.06 kg and high, 5.0 ± 0.09
kg) and 2 FS (total mixed ration, TMR
and free choice feeding, FCF) were used. After weaning (90 days
of age), lambs with low BtW and high BtW were fed individually a
TMR
ad libitum
or fed on the same ingredients (FCF) as that of TMR.
The TMR was consisted of 80% of a compound feed and 20% of roughage
based on a dry matter basis (140 g crude protein and 10.7 ME
MJ/kg). The carcass weight and yield of lambs were
not affected by the BtW, FS and BtWxFS interaction. The slaughter body weight, cold
carcass weight and yield of FCF-fed lambs were higher than
those of TMR-fed animals. The pH45
and shear force of semitendinosus muscle decreased
and increased by the FCF
systems, respectively. These results showed that BtW
of lambs did not affect the studied parameter and that feeding system
created more differences in terms of some parameters due to the
fact that the FCF lead to improvement in carcass
and some meat quality traits.
Keywords: Cafeteria feeding; carcass
weight; digestive tract; lamb meat; organ weights
ABSTRAK
Dalam usaha untuk mengkaji perubahan
dalam ciri kualiti daging serta sesetengah metabolit serum serta
hasil bangkai, bahagian bangkai, organ dalaman biri-biri kerana
dipengaruhi oleh berat kelahiran (BtW) dan sistem memberi makan
(FS),
28 biri-biri jantan Karayaka (usia 150 hari) diperoleh daripada
empat kumpulan perbandingan yang terdiri daripada tujuh replikat
mengikut aturan faktoran 2 × 2 untuk 2 BtW (rendah, 4.1 ±
0.06 kg dan tinggi, 5.0 ± 0.09 kg) serta 2 FS
(jumlah campuran catuan, TMR dan pilihan pemakanan bebas,
FCF) telah digunakan. Selepas cerai susu (usia 90 hari),
biri-biri jantan dengan BtW rendah dan tinggi diberi makan TMR ad libitum
atau diberi bahan-bahan sama (FCF) seperti TMR secara
individu. TMR tersebut terdiri daripada 80% sebatian makanan dan 20%
hampas berdasarkan asas bahan kering (140 g protin gentian dan 10.7
ME
MJ/kg). Berat bangkai dan hasil daripada biri-biri
jantan tidak terjejas oleh interaksi BtW, FS dan BtWxFS. Berat badan penyembelihan,
berat bangkai sejuk dan hasil biri-biri jantan diberi makan FCF
adalah lebih tinggi berbanding haiwan diberi makan
TMR.
PH45 dan ricih daya otot separa tendon menurun dan meningkat
masing-masing mengikut sistem FCF. Keputusan ini menunjukkan
bahawa BtW biri-biri jantan tidak menjejaskan parameter yang dikaji
dan sistem pemakanan mewujudkan lebih banyak perbezaan daripada
segi parameter yang disebabkan oleh FCF membawa kepada peningkatan dalam
bangkai dan sebahagian sifat kualiti daging.
Kata
kunci: Berat organ; berat bangkai; daging biri-biri; pemakanan kafeteria;
saluran penghadaman
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*Pengarang untuk
surat-menyurat; email: arda.yildirim@gop.edu.tr
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