Re-ensiling translocated triticale silage: To inoculate or not to inoculate?


Bacterial inoculation

How to Cite

Solórzano, L. C., Solórzano, L. L., & Rodríguez-Carías, A. (2016). Re-ensiling translocated triticale silage: To inoculate or not to inoculate?. The Journal of Agriculture of the University of Puerto Rico, 100(2), 171–181.


Triticale (x Triticosecale spp.) silage initially inoculated or not with homolactic bacteria (HBI) was stored in 3 L capacity PVC mini-silos for 120 d. After opening four mini-silos per treatment, silages were mixed and exposed to air (AE) for 5 h. Then half of the non-inoculated silage and half of the inoculated silage were re-treated with a water soluble HBI or water, thus resulting in four combinations of experimental treatments (initial ensiling/re-ensiling): 1) noninoculated/ non-inoculated (N/N); 2) non-inoculated/HBI (N/HBI); 3) HBI/noninoculated (HBI/N); 4) inoculated/inoculated (HBI/HBI). Silages were re-ensiled for 120 d at a temperature of 20 to 23° C using four vacuum sealed, 0.946 L capacity glass mini-silos per treatment. Upon opening the mini-silos, silages were sampled and analyzed for nutritional and fermentation characteristics and aerobic stability (AS). Inoculation at the initial ensiling (treatments HBI/N and HBI/HBI) was key in preserving the protein fraction and improving fiber digestibility, while decreasing the pH and contents of fiber fractions, NH3-N and ethanol. The resulting silages were all aerobically stable and there were no differences among treatments. The benefits of inoculating at the initial ensiling carried through re-ensiling. Inoculation at re-ensiling was neither beneficial nor detrimental to any of the characteristics evaluated.


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