DETERMINATION OF METABOLIC ENERGY VALUE OF LEUCEANA LEUCOCEPHALA LEAF MEAL ON LUONG PHUONG BROILER CHICKEN

Abstract

A study on determining the metabolic energy of L. leucocephala leaf meal with corrected energy based on the nitrogen retention in chicken body was carried out on 60 Luong Phuong broiler chickens from 43 to 49 days of age, divided into 2 groups and 30 chickens per group. The chickens of group 1 was fed basal diet (BD); group 2 was fed experimental diet containing 80% of BD + 20% of L. leucocephala leaf meal; and both diets were supplemented 1.5% insoluble mineral. Crude energy and dry matter (DM), insoluble mineral, nitrogen in DM of diets and fecal of 2 groups were determined, and then the metabolic energy of two diets and L. leucocephala leaf meal were calculated. The results showed that the metabolic energy values of 1 kg DM and 1 kg L. leucocephala leaf meal with 90.53% DM content were 2377.0 kcal and 2151.9 kcal respectively.