Na mgbakwunye na ọrụ nke ọnụ ụzọ nkịtị, ọnụ ụzọ ọkụ na-enwekwa ọrụ pụrụ iche nke mgbochi ọkụ, nkewa anwụrụ ọkụ, nkwụsị ọkụ na nchebe mgbapụ. Ọnụ ụzọ ọkụ ahụ nwere ike izute naanị ihe achọrọ nke iguzosi ike n’ezi ọkụ n’ime oge ọkụ ọkụ akọwapụtara, yana ọkwa ọkụ ọkụ bụ 1.0h, 1.5h, 2.0h na 3.0h n’otu n’otu.

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