Silage making process can be explained very simply, it is actually very complex and dependant on
many factors, such as the natural microbial population, harvesting conditions and the sugar content
of the forage. Consequently, silage quality can be very variable and the only way to effectively
control the fermentation process is to use an additive. Additives are natural or industrial products
added in rather large quantities to the forage or grain mass. Additives control or prevent certain
types of fermentation, thus reducing losses and improving silage stability. In order to assist in the
fermentation process, various silage additives have been used to improve the nutrient and energy
recovery in silage, often with subsequent improvements in animal performance. The purpose for
applying additives to the silage is to ensure that the growth of lactic bacteria predominates during
the fermentation process, producing lactic acid in quantities high enough to ensure good silage.
Therefore this review is made to focus on some practical aspects of the fermentation process and
the uses of some common silage additives that include microbial inoculants, enzymes, and propionic
acid.
Silage making process can be explained very simply, it is actually very complex and dependant onmany factors, such as the natural microbial population, harvesting conditions and the sugar contentof the forage. Consequently, silage quality can be very variable and the only way to effectivelycontrol the fermentation process is to use an additive. Additives are natural or industrial productsadded in rather large quantities to the forage or grain mass. Additives control or prevent certaintypes of fermentation, thus reducing losses and improving silage stability. In order to assist in thefermentation process, various silage additives have been used to improve the nutrient and energyrecovery in silage, often with subsequent improvements in animal performance. The purpose forapplying additives to the silage is to ensure that the growth of lactic bacteria predominates duringthe fermentation process, producing lactic acid in quantities high enough to ensure good silage.Therefore this review is made to focus on some practical aspects of the fermentation process andthe uses of some common silage additives that include microbial inoculants, enzymes, and propionicacid.
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