 | Abstract 560Effect of urea addition on the fermentative characteristics and microbial population changes of silage made from cattle manure and final molasses.Hardy,-C; Piedra,-J; Reyes,-A; Cordero,-AJ Dep. Biochemistry, Inst. Ciencia Animal, Apartado 24, San Jose de las Lajas, Havana, Cuba. Tropical-Animal-Production. 1983, 8: 1, 19-26; 23 ref. Faeces from grazing cows were mixed with final molasses and urea in the properties 40:60:0, 40:58:2 and 40:57.5:2 and minerals 0.5 and fermented in laboratory "silos" for 30 days. No Salmonella or coliformis were detected. With urea the final pH was higher and the population of streptococci, yeasts and especially lactobacilli was lower, than without urea. The effect of urea was greater with minerals than without. After 8 days the population of all groups tended to decrease and the production of volatile fatty acids to increase. This abstract relates to the following species: |