The report said the Chinese government undertook a number of measures to combat ASF's spread, following the outbreak of the disease in August last year.
This included the strengthening of border controls, with one possible vector for spreading ASF suspected to be the unofficial trade of goods.
"Beef has been going in to Hong Kong and Vietnam and then ... smuggled into China - they've really cracked down on that."
Listen below:
Holgate said this action at the border was suspected to have led to the recent dramatic fall in unofficial meat trade.
Stringent policing of China's borders is expected to continue through the first half of 2019, which will create further export opportunities for beef exporters like New Zealand, who solely operate through official channels, said Holgate.
Also in today's interview: Holgate comments on the expected fall in lamb prices
Read Rabobank's Beef Quarterly Report Q1 2019 below: