Pengaruh pemberian gula, insulin dan lama istirahat sebelum pemotongan pada domba setelah pengangkutan terhadap kualitas daging

Abstract

Tujuan penelitian ini adalah untuk mempelajari pengaruh pemberian gula insulin dan lama istirahat sebelum pemotongan domba pada domba setelah transportasi setelah terhadap kualitas daging. Penelitian ini menggunakan 54 ekor domba betina dengan kisaran umur antara 10 dan 12 bulan dan bobot hidup antara 14 dan 17 kg. Domba yang digunakan berasal dari Pasirangin, Megamendung, Bogor. Penelitian ini menggunakan rancangan acap lengkap pola factorial 2x3x3. Faktor pertama adalah pemberian gula dengan 2 level yaitu level 0 dan 6 g/kg dari bobot hidup.

An experiment was conducted to study the effects of sucrose supplementation, insulin injection, and resting period prior to slaughtering on meat quality in sheep exposed to stressf1.11tr ansportation. FiRy four female local sheep (10 to 12 months of age) with weight ranging from I4 to 17 kg. The experimental sheep were assigned into a completely randomized design with a 2x3~3 factorial arrangement with 3 replications. The first factor was sucrose supplementation wih 2 leveb (0 and 6 @g body weight). The second factor was insulin injection afkr transportation with 3 levels (0, 0,3 and 0-6 ILTlkgBW). The third factor was the duration of resting perid with 3 levels (2,4 and 6 h prior to slaughtering). Parameters measured were rectal temperature and heart rate, live weight, carcass percentage, blood glucose concentration, meat glycogen concentration, meat lactate concentration, meat pH, water holding capacity, meat tenderness, cooking loss and meat color. The results of the experiment indicated that sheep supplemented with sucrose after transportation had higher meat glycogen and lactate concentration but lower meat pH and cooking loss. Insulin injection decreased blood glucose concentration but increased meat glycogen and lactate concentration. The longer the resting period prior to slaughtering the lower the live weight but the higher carcass percentage. B l d glucose concentration decreased with the increased resting period prior to slaughtering. Water holding capacity, meat tenderness and meat colour did nor show significant differences. It was concluded that sucrose supplementation, insulin injection, and resting period prior to slaughtering in sheep exposed to stressful transportation could improve meat quality.