A second contaminated New Zealand milk product destined for China has been banned, just weeks after shipments of milk containing botulism bacteria were halted.

准备运往中国的第二种受到污染的新西兰乳制品被禁止出口。几星期前，出口中国的感染肉毒杆菌的新西兰乳制品被禁运。

New Zealand's agricultural regulator said Monday that it had cancelled export certificates for four consignments of lactoferrin, whichprovides antibacterial activity to human infants, after it was found to contain excessive levels of nitrate.

新西兰农业管理机构星期一说，在发现四批乳铁蛋白托运货品的硝酸盐含量超标后，已经吊销其出口许可证。乳铁蛋白可以增强婴儿的抗菌能力。

The producer, Westland Milk Products, said none of the batches had reached Chinese consumers.

生产这些乳铁蛋白制品的威士兰乳业公司说，中国消费者没有接触到这些产品。

New Zealand dairy giant Fonterra announced at the end of July that milk slated for export to China contained bacteria that causes botulism.

新西兰乳业巨头恒天然集团7月底宣布，向中国出口的乳制品含有肉毒杆菌。