Study on the use of probiotic products in commercial laying hens and broiler chicken
This study was conducted to evaluate the effectiveness of Baci Extra multi-strain probiotic powder at different supplementation rates in the diets of commercial egg and broiler chickens. The study consisted of 02 experiments: Experiment 1 was conducted on 750 Ho - Luong Phuong crossbred chickens (3/4 Luong Phuong) 1 day old, arranged in a completely randomized manner, divided into 5 experimental groups, 3 replications with mixed feed rations (Control group); supplemented with powdered probiotic at a rate of 0.1% (TN1 group); 0.2% (TN2 group); 0.3% (TN3 group) and 0.4% (TN4 group); indicators of growth ability, feed conversion, disease incidence and carcass yield were monitored until 12 weeks of age. The results showed that the use of 0.4% probiotic preparation significantly affected the growth ability, feed conversion ratio, disease prevention and carcass yield of experimental chickens; the average daily weight increased by 10.01%, FCR decreased by 9.12%, survival rate by 96.67%, and increased the carcass rate. Supplementing BACI EXTRA preparation into the diet improved the growth ability, feed conversion, disease rate and carcass yield. Experiment 2 was carried out on 750 1-day-old Isa Brown laying hens, arranged in a completely randomized manner, divided into 5 experimental groups, 3 replicates with mixed feed rations (Control group); supplemented with powdered probiotic preparation at a rate of 0.15% (TN1 group); 0.25% (TN2 group); 0.35% (TN3 group) and 0.45% (TN4 group); Growth performance, feed conversion, and egg productivity were monitored until 32 weeks of age. When 0.35% probiotics were used in the feed for laying hens, egg weight reached 62.10g/egg, increasing by 2.76%, feed consumption per 10 eggs decreased by 9.75%, and cumulative egg productivity was 3.7% higher than the batch without probiotics. The results showed that adding BACI EXTRA to the diet increased the laying rate, increased egg weight, egg productivity, and reduced feed consumption for commercial egg-laying hens.
