Authors : Cabrera-Mendoza , P.R. Rosiles-Martinez , A.H. Ramirez-Perez , F. Castrejon-Pineda , V.O. Fuentes- Hernandez and V.O. Fuentes- Hernandez
Abstract: With the objective of studying PH changes, acetic, propyonic, butyric and lactic acids concentrations together with dry matter and mineral content during the process of ensiling mixtures of porcine fresh manure with choped sugar cane. A series of microsilos was made following a factorial design with 60 and 70% porcine faeces and 30 and 40% chopped sugar cane, respectively, samples were taken at 0, 30. 45 and 60 days with 5 repetitions each. The differences in PH and concentration of dry matter, short chain fatty acids and minerals were used to determine the quality of ensiling. No change was observed in the concentration of dry matter in all treatments (p>0.05), PH tended to be more acid as ensiling time progressed. Acidity was correlated to the concentration of short chain fatty acids (r=0.99). The production of Lactic acid predominated and butyric acid was used as an indicator of ensiling quality. The concentration of Acetic, propyonic, lactic and butyric acids present were with in the range of what is considered a good quality silage. The concentration of minerals was related to the % of porcine manure used in the silo. These results shows that monitoring the contents of fatty acids, PH, dry matter and minerals can be useful when this type of silage is intended for ruminants feed.
Cabrera-Mendoza , P.R. Rosiles-Martinez , A.H. Ramirez-Perez , F. Castrejon-Pineda , V.O. Fuentes- Hernandez and V.O. Fuentes- Hernandez , 2006. Changes in the Concentration of Short Chain Fatty Acids, PH, Dry Matter and Minerals Duringthe Process of Ensiling a Mixture of Swine Manure and Choped Sugar Cane. Agricultural Journal, 1: 104-108.