The coalition also accused Mr Tinubu of undermining key institutions.
Mrs Jega, aged 40, died on Sunday.
Mr Bagudu said that Nigeria’s exceptional demographic growth, with youths as the highest, was both an advantage and a challenge.
Mr Jega reiterated the need for greater focus on the dairy sector to boost national development, adding that the policy is anchored on 11 strategic pillars.
Mr Jonathan said independent electoral commissions and unbiased security forces are the cornerstone of credible elections.
“Within a reasonable time frame, a maximum period of 10 years, we would see remarkable improvements in virtually all aspects of the livestock sector,” Mr Jega said.
President Bola Tinubu announced the creation of the Ministry of Livestock Development on Tuesday.
The ex-INEC chief’s alarm, while silent on citing Bola Tinubu by name, appeared to echo a key prong of the criticism the Nigerian president has faced since assuming office in May.
“We have a tendency to heap blame on the leadership of an electoral management body.”
Education minister Adamu Adamu has presented a new curriculum for Nigerian universities, saying it will add value to university graduates.
