Feed efficiency and income over feed cost of Ettawa crossbred goats fed different quality of dry complete feed supplemented with mineral

Abstract

This study aim was to evaluate the effect of different quality of dry complete feed and mineral (Zn-Se) supplementation on feed efficiency and income over feed cost of Ettawa crossbred goats. Sixteen weaned female goats aged 4-month-old were used in this study. The experiment was conducted in factorial 2x2 in a completely randomized design with 4 replications and 2 factors. The first factor was different levels of energy and protein in the diets: 14% CP + 63% TDN (T1); and 16% CP + 67% TDN (T2). The second factor was the Zn-Se supplementation (treatment and control). The concentration of Zn and Se in the supplement were 20 mg/kg and 0.2 mg/kg, respectively. Results showed that goats in T1 group lost the body weight (BW) by 11.07 g, whereas T2 group gained 10.48 g of BW within 6 weeks of experimental period. Supplementation of Zn-Se in the T2 diets prevented the BW lost and resulted in the highest BW gain (7.15 kg) within 14 weeks. Moreover, the T2 diets plus Zn-Se supplement also resulted in the highest feed efficiency (11.82%) as well as income over feed cost (IDR. 1,722 head/d). It is concluded that dry complete feed containing 16%CP and 67% TDN with Zn-Se supplementation (Zn 20 mg/kg + Se 0.2 mg/kg). It is recommended for female weaned-goat for the optimal growth and increase the income over feed cost. It is recommended for female kid goat at the growth phase.