Abstract: The present study was designed to evaluate the influence of different rearing modes and seasonal factors on growth performance,slaughter traits and meat quality of broilers.Two batches of broiler chicks with the same variety were included in this study;the first batch was reared from October to December and the second one was reared from March to May;starting from 5-week-old,the broiler chicks within each batch were randomly allocated into three groups which were reared under three different rearing modes viz.scattered rearing mode,net rearing mode and fermentation bed rearing mode,respectively.The growth performance of broilers was determined weekly from 5-to 10-week-old,and the slaughter traits and meat quality were determined after 10-week-old.The evaluation indexes of the broilers reared under different rearing modes within the same batch and reared in different seasons(batches)under the same rearing mode were statistically compared,respectively.The results showed that in the first batch,the 10-week-old weight of the broilers under scattered rearing mode was extremely significantly higher than that under fermentation bed rearing mode(P<0.01),and in the second batch,the 10-week-old weight of the broilers under scattered rearing mode was extremely significantly higher than that under the other two rearing modes(P<0.01);in the first batch,the meat color and crude fat content of breast muscle of the broilers under scattered rearing mode was extremely significantly higher than that under the other two rearing modes(P<0.01),and in the second batch,the crude fat content of breast muscle of the broilers under scattered rearing mode was extremely significantly higher than that under the other two rearing modes(P<0.01);in the second batch,the broilers under scattered rearing mode had extremely significantly lower moisture content of leg muscle compared to those under the other two rearing modes(P<0.01),and had extremely significantly higher crude fat content of leg muscle compared to those under the other two rearing modes(P<0.01).The 8-,9-,and 10-week-old weights of the broilers in the second batch were simultaneously found extremely significantly higher compared to those of the broilers in the first batch under the three different rearing modes(P<0.01);under the net rearing mode,significantly higher dressing percentage and whole net carcass rate were observed in the first batch(P<0.05);under the net rearing mode and scattered rearing mode,the breast muscle percentage of the first batch was extremely significantly higher(P<0.01);under the three different rearing modes,extremely significantly higher crude protein content of breast muscle was simultaneously observed in the second batch(P<0.01),and extremely significantly higher meat color,shear stress and water holding capacity of leg muscle were simultaneously observed in the first batch(P<0.01).Collectively,these data reveal that the broilers perform better in growth performance and meat quality under the scattered rearing mode compare to the other two rearing modes,and seasonal factors have certain effect on growth performance,slaughter traits and meat quality of broilers.