“When feeding young felids, they should be placed on their stomach on a flat surface (e.g., table). Cubs held in an upright or head back position during feeding are more prone to aspiration and death.”
Source: Jealousy, Distractions and Excuses – Big Cat Awareness
His young animals are cared for by his Nanny: Nanny Eli. A woman with no animal husbandry background other than what you see here.