wilted perennial ryegrass ( lolium perenne l. cv . endura ) was ensiled without additive or after addition of a mixture of equal volumes of formic acid ( 850 g/kg ) and formalin ( 380 g formaldehyde/kg ) applied at a rate of 35 g formaldehyde/kg herbage crude protein ( nitrogen x 6.25 ) .
C0949307
formalin
C0016564
formaldehyde