Some times, lambs born from multiple lambings are refused by their mothers, and as a result they lack of suitable care and attention which may end up in lamb mortality. It is also commonly stated for some yearlings after their first lambing, or in sheep that have particularly suffered during lambing.
Whenever they notice, some farmers try to recall the attention of sheep for these initially refused lambs. To do so, shepherds try to modify the smell and flavor of the outer layer of the lamb by spreading salt, perfume, or the remainings of placenta or amniotic liquid, or some other fragrant agent.
This solution may also be used to facilitate the adoption of a lamb born from another sheep.