The end of a strong run for New Zealand's beef export trade is looming as the United States continues to ramp up production and the market faces increased tariffs in Japan.
Japan - New Zealand's fourth-biggest market for beef and its most lucrative - has raised its import tariff on frozen product to 50% from 38.5% until the end of March next year in response to import levels breaching pre-set levels.
Frozen beef accounts for about 70% of New Zealand's beef exports to Japan.
"When you have those two issues together on the supply side, it can make it a bit more challenging for the market place, even with robust demand across most major markets," ANZ rural economist Con Williams said.
US beef farmers have been playing catch-up after production there took a hit in 2013 and 2014 in response to drought and poor profitability for cow-calf operators.
AgriHQ said the outlook for beef prices was weakening in the US, the largest market for New Zealand beef, after a US Department of Agriculture report showed cattle numbers at a nine-year high as farmers rebuilt their herds.
Rival exporter Australia, which has a free-trade agreement with Japan, has increased supplies, and a rise in the NZ dollar is hurting margins, AgriHQ said.
"Sentiment in the US towards imported beef has turned negative, largely on the belief that US domestic prices will weaken in the next few months," AgriHQ analyst Reece Brick said in a report.