This study aimed to evaluate physicochemical and microbiological aspects of wet corn gluten feed (WCGF) according to time of ensilage. The WCGF was evaluated in experimental silos and after one, three, seven, 14, 21, 28 and 42 days, physical, chemical and microbiological evaluation of the silage was carried out. The results were analyzed as a completely randomized design with four replications and regression equations as a function of time. The number of days of ensiling did not affect neutral detergent fiber, acid detergent fiber, crude protein, mineral matter, non-nitrogenous extract and total digestive nutrients percentages, as well as clostridia count. Dry matter, ether extract, effluents losses and percentages of gas losses and lactic acid bacteria count with variations of 46.54 and 49.05%; 0.96 and 1.71%; 17.97 and 35.14g kg-1; 1.90 and 5.68% and 5.0 and 6.9log CFUg-1 of silage, respectively, all had low coefficient of determination (r2≤0.6).The pH (Y=4.12926-0.00894days+0.00024126days2,r2=0.75) and temperature (19.82657+0.11734days-0.00502days2,r2=0.73) had their minor and major values, respectively, in 18.5 and 11.7 days. Moulds and yeasts count decrease with time of ensilage (Y=6.8983-0.0363days,r2=0.84). The ensiling allows efficient conservation of the chemical, microbiological and physical aspects of WCGF until 42 days of ensilage
byproducts; Clostridium sp.; Lactobacillus sp.; preservation; Zea mays
