by feeding them feed ration rich in proteins, energy, fibres as well as vitamins, minerals and amino acids. products for poultry farming although vitamins and minerals present a small part of feed, they are essential for successful breeding. only the right quantity and ratio between vitamins and minerals...
in the deep sea, in arctic sea ice, in fish and shellfish. image : satellite image of the aral sea then and now satellite images of the aral sea in central asia show how much it has shrunk by since rivers flowing into the lake were dammed to irrigate cotton fields in the s. this image was taken in and...