Verification of the glue-free bone meal feeding to sows

animal tissues bone meal bones calcio calcium cerdas compound feeds dicalcium phosphate farine d'os feed supplements fosfato dicalcico fosforo harina de huesos heavy metals huesos lait leche metales pesados milk os phosphate dicalcique phosphore phosphorus piensos compuestos piglets porcelet sows suplementos de piensos tejidos animales tissu animal truie