The effect of isoamylase application in cassava root meal on broiler growth performance, feed retention time, and metabolite profile

¹ Faculty of Animal Science, Universitas Brawijaya, Jl. Veteran, Kota Malang 65145, Indonesia
² Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Jl. Agatis, Kampus IPB Darmaga Bogor 16680, Indonesia

^* Corresponding author: nahrowi2504@yahoo.com

Abstract

The objectives of this study were to evaluate isoamylase application on the cassava root meal (CRM) and identify its effect on broiler growth performance, feed retention time, and metabolite profile. The experiment used 270 sexed broilers strain Lohman with an initial body weight of 45.88 ± 0.41 g were allotted into 3 treatments and 6 replications with 15 birds in each pen for 35 days. Dietary treatments were T0: Basal Ration + 0% CRM, T1: Basal Ration + 50% CRM, T2: Basal Ration + 50% CRM + 0.05% isoamylase. The results showed that the inclusion 50% of CRM both with and or without isoamylase was increased (P<0.01) feed intake and feed conversion ratio (FCR) and gave the same effect (P>0.05) on body weight, body weight gain, carcass weight, and carcass percentage during the overall period compared to fed T0. The treatment had no significant difference in coefisien total starch digestibility, metabolizable energy, and blood glucose levels. In conclusion, the inclusion of 50% cassava root meal with and or without isoamylase to subtitute corn in ration does not affect the broiler growth performance however FCR was higher than the control.