He says the "rig count" in the natural gas market - an indicator of production - supports a possible price rise, but warns inventories are high and demand weak.
In Brazil, where exports account for approximately 30 percent of total poultry output, the price of day-old chicks, an early warning indicator of potential production changes, is down sharply.
在出口量占全部禽肉产量30%的巴西，作为潜在产量变化早期预警指标的日龄鸡苗价格大幅度下降。
3
But Mr Martins shows few signs of worry. He says that the growth in demand for iron ore in China - a good indicator of steel production - is slowing down.