| Penulis/Author |
Ir. Panjono, S.Pt., MP., Ph.D., IPM., ASEAN Eng. (1); Prof. Dr. Ir. Ali Agus, DAA., DEA., IPU., ASEAN Eng. (2) |
| Abstrak/Abstract |
This research was aimed to determine the effect of Peptida-G® dietary supplementation as alternative B-adrenergic agonist substitution on growth performance and carcass quality of Brahman Crossbred cattle. Fourty eight head of steers were used in this research. The initial age and body weight of the steers were 1.5 to 2 years and 363.13±18.34 kg, respectively. The cattle were randomly divided into two groups (B-adrenergic agonist and Peptida-G®) with the same number. B-adrenergic agonist group was given concentrates containing 30 ppm(30 mg/kg DM feed) B-adrenergic agonist named ractopamine hydrochloride and Peptida-G® group was given concentrates containing 0.15% (1.5 g/kg DM feed) Peptida-G®. Feed additives were given for 41 days at the late phase of fattening. The collected data were analyzed using Independent Sample t-test. Nutrients (dry matter, organic matter and crude protein) intake of both group were not significantly different. The average of dry matter, organic matter and crude protein intakes of B-adrenergic agonistgroup were 104.95, 91.34 and 12.83 g DM/kg BW0.75, respectively. Dry matter, organic matter and crude protein intakes of Peptida-G® group were 105.08, 91.47 and 12.88 g DM/kg BW0.75. Average daily gain of B-adrenergic agonist group was higher (P<0.05) than that of Peptida-G® group. Feed conversion ratio of B-adrenergic agonist group was lower (P<0.01) than that of Peptida-G® group. Feed cost per gain of B-adrenergic agonist group was higher (P<0.01) than that of Peptida-G® group. Carcass quality (slaughter weight, carcass weight, dressing percentage, back fat thickness, rib eye area, marbling score, meat colour score, and fat colour score) of both group were not significantly different. It was concluded that the utilization of Peptida-G® inconcentratesof Brahman Crossbred cattle result in lower growth performance and same carcass quality in comparison to B-adrenergic agonist, but feed cost per gain of Peptida-G® was better than B-adrenergic agonist |
