Ảnh hưởng của đệm lót chuồng lên men vi sinh vật và giàn đậu đến một số chỉ tiêu phúc lợi và khả năng sinh trưởng của gà thịt lông màu

Effect of microbial fermented litter and perches on welfare quality and growth performance was studied in colored broiler. A total of 360 broiler chickens (Ho × Luong Phuong) at four weeks old were housed in 4 treatment groups, 30 broilers per group and 3 replication pens, under semi-commercial conditions over 9 weeks. Birds were housed in one of 4 treatment groups including control group (DC, chickens raising under rice husk bedding), TN1 (DC + bamboo perches), TN2 (DC + microbial fermented litter), and TN3 (combinated both TN1 and TN2). The weight of bird individuals from pens was recorded weekly for performance assessment. At the end of the experiment, bird inviduals from pens were held and kept for assesment of comb scratches, plumage cleanliness, hock burns, footpad dermatitis, and breast deformities. Results showed that the birds housed with TN1 and TN3 groups had greater proportion of plumage cleanliness, crooked breast and a lower proportion of comb scratches compared to birds with DC and TN2 groups (P <0.05). Treatments did not significantly affect hock burns and footpad dermatitis (P >0.05). In addition, treatment groups had no significant effect on parameters such as mortality rates, growth performances, and feed conversion ratio (P >0.05). It is concluded that, colored broilers housed in pens supplemented with bamboo perches and both bamboo perches and microbial fermented litter under semi-commercial conditions has the potential of improving animal welfare without positive effects on the performance