TY - BOOK AU - Hashimoto, A.G. AU - Varel, V. H. AU - Chen, Y. R. TI - Factors affecting methane yield and production rate U1 - 665.776 PY - 1979/// CY - Nebrasca PB - American Society of Agricultural Engineers KW - Metano KW - Residuos Animales KW - Temperatura KW - Biogas N1 - Fotocopia; 06548; The effects of temperature, ration constituentes, antibiotics and manure age on methane yield, and mixing and vacuum fermentation on methane production rate are discussed. Our results showed that temperature and antibiotics do not affect the methane yield; however, monensin did delay the start of active fermentation in batch fermenters ER -