The link below is a table detailing approved pesticides. Not all of the pesticides listed are labeled for sheep. Check the approved species column (4th from left) to make sure it is safe to use with sheep.
Ethinic holidays factor significantly in the demand for sheep meat and to a lesser extent for goat (chevon). The type (size, sex, and condition) of lamb (or goat) desired by particular people at particular holidays varies.
Internal parasites are the #1 health problem affecting small ruminants. Sheep and goats are more susceptible to internal parasites than other livestock, due to their grazing behavior and poor immunity.