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The effects of temperature on the aerobic stability of wheat and corn silages

G. Ashbell ¹, Z.G. Weinberg ¹, Y. Hen ¹ and I. Filya ².

¹Forage Preservation and By-Products Research Unit, The Volcani Center, Bet Dagan 50250, Israel
²Departrnenf of Animal Science, Faculty of Agriculture, Uludag University, Bursa 16384, Turkey

Abstract: The aim of this work was to study the effects of temperature on the aerobic stability of wheat and corn silages. Three silage samples from each crop were taken from the faces of six different commercial bunker silos immediately after unloading them. The samples were exposed to air for 3 or 6 days at 10,20,30 or 40°C. The most intensive deterioration occurred at 30°C. Samples incubated at 30°C had the highest yeast counts, most prolific CO₂ production and greatest increases in pH. Silage samples exposed to 10 or 40°C remained stable. The duration of exposure had a significant effect on aerobic stability, especially at 30°C. Temperature has a significant effect on silage aerobic stability. In a warm climate, special care should be taken during unloading of silage in order to prevent intensive aerobic deterioration.

Jornal of Industrial Microbiology & Biotechnology (2002)

Key Words: wheat silage; corn silage; aerobic stability; temperature

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