Performance and feed digestibility of sentul chicken fed hydrolyzed maggot (Hermetia illucens) meal produced by crude enzymes from tempeh yeast

Abstract

Maggot is the larva of the Black Soldier Fly (BSF) which has the potential as an alternative protein source for poultry. The study aimed to examine the supplementation of hydrolyzed and non-hydrolyzed maggot meals to increase the performance and feed digestibility of Sentul chicken feed. Crude enzymes produced from Tempeh yeast were used as inoculum starters. The research method used was a completely randomized design (CRD) with 7 treatments and 3 replications, each replication consisted of five Sentul chickens of four weeks old. The treatments were R0 = basal feed (control), R1 = R0 + 2% non-hydrolyzed maggot, R2 = R0 + 4% non-hydrolyzed maggot, R3 = R0 + 6% non-hydrolyzed maggot, R4 = R0 + 2% hydrolyzed maggot, R5 = R0 + 4% hydrolyzed maggot, R6 = R0 + 6% hydrolyzed maggot. Variables observed were feed intake (FI), total weight (TW), weight gain (WG), feed conversion ratio (FCR), crude protein digestibility (CPD), and crude fiber digestibility (CFD). The data were analyzed utilizing Analysis of Variance (ANOVA) and Tukey's honestly significance difference (HSD) test was also conducted. The results demonstrated that the addition of maggot meal had a significant impact (P<0.01) on the variables TW, WG, FCR, and CPD, and a moderately significant impact (P<0.05) on FI and CFD. When supplemented with 4% and 6% non-hydrolyzed maggot meal, FI and CFD were raised. However, when supplemented with the same percentage of hydrolyzed maggot meal, there was a significant increase in WG and TW while also decreasing the FCR value. Incorporation of 4% hydrolyzed (R5) maggot meal optimized WG, TW and FCR values, and boosted the CPD coefficient from 82.16 ± 1.46 (R0) to 93.14 ± 0.15 and CFD from 60.01 ± 2.40 (R0) to 83.90 ± 0.40 (R6) at the 6% level. In conclusion, the supplementation of hydrolyzed maggot (Hermetia illucens) meal, with crude enzymes from Tempeh yeast, significantly enhanced the performance and feed digestibility of Sentul chicken diets. Supplementation of 4 and 6% gave relatively the same performance, but the best digestibility was found in addition of 6%. Key words: enzymes, digestibility, larvae, performance, sentul-chicken, tempeh, supplementation, hydrolysis