| 摘要 |
The present invention relates to feed for salmonids, comprising standard feed ingredients as fat, protein, including amino acids, minerals, vitamins etc. for reduction of cataracts. The feed should contain more than 1.15 weight % histidine, or corresponding amounts of histidine pre-cursors or histidines derivatives such as anserin, carnosinor ergothionein, of the total feed. Preferred histidine content in the feed is 1.3-2.0 weight %. Advantageously the feed contains more than 120 mg zinc/kg feed. |
