The improved trading was driven by Australia, where sales rose 3.4 per cent to A$2.02b and ebitda jumped 20 per cent to A$158.8m, beating its IPO forecast of A$153m.
"Overall poultry volumes increased 11.5 per cent with stronger-than-expected growth in Australia and improving New Zealand volume growth in the second half," chief executive Mick McMahon said in a statement.
Commenting on the outlook, McMahon said: "Continued growth in poultry volumes is expected".
"The effect of increasing feed prices over recent months is expected to be mitigated by forward cover arrangements, feed cost pass-through mechanisms with customers and market recovery of increased prices over time," he said. Some further assets sales were expected while capital expenditure was likely to reduce from its 2017 peak.
Ingham's said it has begun a strategic review of its commercial stock feed business.
The company's shares last traded at A$3.50 on the ASX and have gained 7 per cent in the past six months. US private equity firm TPG floated the business at A$3.15 per share.