Our biological silage additives improve silage feedout, enabling farmers to produce more milk and meat from homegrown forage. The scheme seeks to identify those products with independently verified trial data, so that the farmer can be confident that his purchase is cost effective
Sure Sile contains 3 strains of elite lactic acid bacteria, enzymes, micronutrients and clostridiaphages, which work together to rapidly drop silage pH. This retains more nutrients so that the silage feedout is improved. The Sure Sile formula has successfully treated over 50 million tonnes of silage which is probably more than any other biological product.
       
Most bacterial silage inoculants produce primarily lactic acid during the fermentation process. The most common lactic acid producing bacteria used in silage inoculants are Lactobacillus plantarum, L. acidophilus, Pediococcus cerevisiae, P. acidilactici and Enterocccus faecium.  These organisms have been demonstrated to increase the rate of pH decline during fermentation, decrease losses of silage DM, and in many cases, animal performance is improved.  However, silage fermentation products produced by homofermentative bacterial inoculants sometimes can result in silage that is less stable when exposed to air than silages that have not been inoculated.  This is possible because lactic acid produced by homofermentative bacteria can be readily metabolized by some species of yeast and mold upon exposure to oxygen.
When applied at the time of ensiling at the rate of up to 5 x 105 CFU per gram of fresh material, L. buchneri has been demonstrated to improve aerobic stability of high moisture corn, corn silage, alfalfa silage and small grain silages relative to untreated controls.
The beneficial impact of L. buchneri appears to be related to the production of acetic acid.  Although the precise mechanism has not yet been determined it is likely that aerobic stability is improved because acetic acid inhibits growth of specific species of yeast that are responsible for heating upon exposure to oxygen.
In research trials yeast and mold growth in silage treated with L. buchneri has been lower at feed-out than for untreated control silages.  Yeast and mold levels in silage inoculated with L. buchneri also do not increase as rapidly as in untreated controls when exposed to air.  As a result, the temperature of silage inoculated with L. buchneri does not readily rise upon exposure to air and tends to remain similar to ambient temperature for several days, even in warm weather.
Treating silage with L. buchneri most likely would be beneficial under circumstances where problems with aerobic instability are expected. Corn silage, small grain silage and high moisture corn are more susceptible to spoilage once exposed to air than legume or grass silage, and therefore L. buchneri inoculation may be a benefit.  L. buchneri can also be applied to legume silage if aerobic stability is a problem.
    It should be remembered that high ambient temperatures, slow filling, improper packing, low surface removal rate and poor feed bunk management are all factors that can decrease aerobic stability of silage.  It is likely that L. buchneri would improve aerobic stability in circumstances where untreated silage or silage treated with lactic acid producing bacteria have a history of heating at feed out.  It is unlikely that L. buchneri will improve silage quality in situations where silage has a history of being aerobically stable at feed out.  In fact, under such circumstances, the potential reduction in silage dry matter recovery due to this organism’s heterofermentative fermentation may actually make L. buchneri a less desirable silage inoculant than homofermentative bacterial inoculants.
    Acetic acid can reduce feed intake in ruminants. It is not clear at this time whether enough acetic acid is produced in silages treated with L. buchneri to affect feed intake.  We found in a recently completed lactation trial that feed intake and milk production were similar when cattle were fed total mixed rations containing untreated or L. buchneri inoculated high moisture corn.  Corn inoculated with L. buchneri had higher concentrations of acetic acid and was aerobically more stable than untreated corn.
University of Delaware researchers have also reported that acetate levels were elevated in alfalfa silage and barley silage inoculated with L. buchneri compared to untreated controls.  Milk production and feed intake were not different when dairy cows were fed TMR’s containing either treated or untreated alfalfa silage, or treated or untreated barley silage.
 
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