Final answer:
Pork intestine cannot be used as casing in the manufacture of halal sausages.
Step-by-step explanation:
In the manufacturing of halal sausages, pork intestine cannot be used as casing. Halal sausages are prepared according to Islamic dietary laws, which prohibit the consumption of pork. The use of pork intestine would make the sausages haram, or forbidden. Instead, sheep, sheep, goat, or cattle intestine is commonly used as casing for halal sausages.