(US5082675-A)      Compsn. comprises a combination of formic- and octanoic acids. Pref., compsn. includes 10-50 wt.% water, and 0.5-10 wt.% octanoic acid per 100 wt.% of aq. soln. contg. 85 wt.% formic acid. Compsn. esp. comprises formic acid, propionic acid, octanoic acid, and ammonia. Wt. ratio propionic acid:octanoic acid is 2:1 or more, and formic acid: ammonia is 4:1 or more.    USE -   Silage is obtd. enhanced in residual sugars and reduced in lactic acid, without adverse effect on digestibility. @(7pp)    (ZA9005862-A)      Aq. compsns. suitable for ensiling substrates. Compsn. comprising formic acid and octanoic acid. The compsn. may contain in addition other components such as propionic acid and ammonia to improve ease of handling.    Octanoic acid, which when used alone, has no ensiling or fermentation activity, but when used in conjuction with formic acid it increases nutritionally desirable sugars in the ensiled product.    (EP411827-B1)      An aqueous composition suitable for use as an ensiling agent comprising a combination of formic acid and octanoic acid.    (JP2549455-B2)      Aq. compsn. suitable for use as an ensiling agent comprising a combination of formic acid (I) and octanoic acid (II).    Pref. aq. soln. comprises 10-50 wt.% water; compsn. contains 0.5-10 wt.% (II) per 100 wt.% of aq. (I) (contg. 85 wt.% (I)).    A compsn. comprising (I), (II), propionic acid (III) and ammonia (IV). Wt. ratio of (III): (II) is pref. at least 2:1 and the mole ratio of (I):(IV) at least 4:1. The compsn. may be applied to the substrate by direct mixing of the harvested substrate with the ensiling formulation or by impregnating a particulate and porous carrier material with the formulation and then uniformly distributing the impregnated carrier into the substrate. The substrate materials include grass, agricultural crops and whole plant materials used in preparing animal feedstuffs.    ADVANTAGE -   Combination of (I) and (II) has a synergistic effect, enhancing residual sugars in the ensiled substrate and also conferring an antimicrobial effect on the substrate. @(7pp Dwg.No.0/0)