Corn silage management: effects of maturity, inoculation, and mechanical processing on pack density and aerobic stability.

Three experiments were conducted to evaluate the effects of inoculation, maturity, and mechanical processing of corn silage on aerobic stability and pack density. Corn silage was stored in 20-L mini silos for the three aerobic stability experiments. Corn silage was stored in 80-L mini silos for the three pack-density experiments. The wet pack density of corn silage tended to decrease as maturity advanced in all of the pack-density experiments, and processed corn silage had a greater wet pack density compared with unprocessed corn silage in two of the three 20-L mini silo experiments. Aerobic stability, measured as the number of hours to reach 1.7 degrees C above ambient, was greater for processed corn silage in two of the three 20-L mini silo experiments, and was greater for inoculated corn silage across the three 20-L mini silo experiments. Inoculation of corn silage with lactic acid producing bacteria tended to improve aerobic stability of corn silage more than maturity and mechanical processing.

[1]  A. Wilkie,et al.  Investigations into the role of specific micro-organisms in the aerobic deterioration of maize silage , 1984, The Journal of Agricultural Science.

[2]  M. Endres,et al.  Effect of feeding silages from corn hybrids selected for leafiness or grain to lactating dairy cattle. , 1999, Journal of dairy science.

[3]  K. Shinners,et al.  Corn silage management: effects of hybrid, maturity, inoculation, and mechanical processing on fermentation characteristics. , 2003, Journal of dairy science.

[4]  E. Depeters,et al.  Effects of inoculants containing propionic acid bacteria on fermentation and aerobic stability of corn silage. , 1998 .

[5]  N. Asp,et al.  A Rapid Method for the Analysis of Starch , 1986 .

[6]  Richard E. Muck,et al.  FACTORS AFFECTING BUNKER SILO DENSITIES , 2000 .

[7]  W. Horwitz.  Official Methods of Analysis , 1980 .

[8]  L. Armentano,et al.  Influence of particle size on the effectiveness of the fiber in alfalfa silage. , 1999, Journal of dairy science.

[9]  K. Shinners,et al.  Corn silage management I: effects of hybrid, maturity, and mechanical processing on chemical and physical characteristics. , 2002, Journal of dairy science.

[10]  L. Kung,et al.  The effect of Lactobacillus buchneri, Lactobacillus plantarum, or a chemical preservative on the fermentation and aerobic stability of corn silage. , 2000, Journal of dairy science.

[11]  P. V. Soest,et al.  Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. , 1991, Journal of dairy science.

[12]  F. Smith,et al.  COLORIMETRIC METHOD FOR DETER-MINATION OF SUGAR AND RELATED SUBSTANCE , 1956 .

[13]  K. Shinners,et al.  Nutritive value of corn silage as affected by maturity and mechanical processing: a contemporary review. , 1999, Journal of dairy science.

[14]  K. Pettersson,et al.  Microbial dynamics during aerobic deterioration of silages , 1985 .

[15]  H. Goering.  Forage Fiber Analyses , 1970 .

[16]  R. Mutters,et al.  Anaerobic Digester Survey of California Dairy Producers , 1996 .

[17]  W. Weiss,et al.  Effect of oil content and kernel processing of corn silage on digestibility and milk production by dairy cows. , 2000, Journal of dairy science.

[18]  J. Coors,et al.  Impact of the maturity of corn for use as silage in the diets of dairy cows on intake, digestion, and milk production. , 1997, Journal of dairy science.