The Supplementation of ZnSO4 and Zn-Cu Isoleusinate in the Local Feed Based at Last Gestation Period on Dry Matter Consumption and Digestibility and Calf Birth Weight of Bali Cattle

Abstract

An experiment has been conducted to investigate the effect of supplemented ZnSO4 and Zn-Cu Isoleusinate in the local feed based locally at last gestation period on the dry matter consumption and digestibility and calf birth weight of Bali Cattle. Twenty seven of Bali cows with aged of gestation of 7-9 months were use in this expepriment. The feed was fed local feedstuffs substituted with organic minerals of ZnSO4 and Zn-Cu Isoleusinate mixed with concentrate. Randomized Block Design with three treatments and nine replicates was use in the experiment. The three treatments were: R0 = freed cows in the pasture; R1 = R0 + legume; and R2 = R0 + concentrate contained 150 mg ZnSO4/kg dry matter and 200 mg Zn-Cu Isoleusinate/kg dry matter concentrate. Parameters measured were dry matter consumption, dry matter digestibility, and calf birth weight of Bali Cattle. The results of this experiment showed that the treatments signi cantly affected (P <0.05) on the dry matter consumption, dry matter digestibility, and calf birth weight of Bali Cattle. The treatment R2 produce an optimal response on the three treatments. It could be concluded that supplemented ZnSO4 and Zn-Cu Isoleusinate added in the concentrate increased dry matter consumption and the dry matter digestibility so they were able to increase of calf birth weight of Bali cattle.