English to Portuguese Tech/Engineering Mechanics / Mech Engineering sistema de tratamento de camas de forragem

Sempre em relação ao manual sobre o sistema de tratamento de camas de forragem, encontro esta expressão:

"The procedures generally in force in the facility should be sufficient to assure that the disposal station is fed only with bedding and enrichments".

E ainda:

"The operator empties the dirty cages onto belt conveyor of the bedding disposal station (1). The operator is protected from allergens by the air curtain generated by the suction hood (2), while soiled bedding and enrichments fall onto the belt conveyor. The soiled materials are then dropped into the shredder, where they are reduced into particles."

Nesse caso como posso traduzir "enrichments"???

Poderia ser "adubos enriquecidos"???

Obrigada desde já.