What other’s ask the Silage Pro:
If a container is left open, HayPro® II will slowly evaporate, similar to an open can of gasoline.
The product can also freeze if temperatures drop into the teens. This can cause a separation of a heavier precipitate to settle to the bottom. Once the liquid warms up, everything will go back into solution. This causes no change in the product or its performance.
With cattle, softer hay also means less sorting. When first testing treated hay with horses, we learned that they are creatures of habit. If they eat left to right then whatever we fed on the left was eaten first. What ever hay we fed for two weeks was the hay they went to first if given a choice.
In trials done with The Cornell Vet School, we found that horses with respiratory problems recovered more quickly when fed treated hay. The treated hay was less dusty which eliminated respiratory irritation.
If anything, you should see better intake and palatability based on a softer and leafier hay.
SilagePro® can be sprayed on baleage with excellent results. Baleage, when put up at the proper moisture range will ferment like any other forage. Baleage is recommended to be put up at a range of 35% – 50% dry matter (50% – 65% moisture). The same mangement rules apply – 1) a nice tight pack and 2) enough wrap to prevent air from entering once it’s sealed. SilagePro® will then rapidly ferment the baleage, quickly drop the pH and produce a high quality feed. This process is exactly the same as any silage fermentation.
Your question suggests that you want to spray HayPro® on the hay as the hay is being cut or spray HayPro® on the wind row and bale the wind row later. Neither of these types of application will work well. Both have been tried with little success.
Evaporation is not an issue of concern. Once applied to the hay, the acid is absorbed into the plant with minimal evaporation.