AQUACULTURE3countries like the United State have also developed a genetic manipulation of rainbow troutembryo sex chromosomes that lead to the production of triploid females which do not possess a characteristic of hook-like jaws ensuring customers attraction(Omaima Harun, Zou, Zhang, Nie & Secombes, 2014). Rainbow trout do not naturally spawn naturally in the culture system making the juveniles to be obtained by the collecting eggs from a wild stock or from the artificialhatchery(Tower, 2012).Environmental and Culturing Conditions Different populations of a rainbow trout will require various habitats including small to large livers, cool lakes, cold headwaters, oceans, andtributaries(Heather, 2012). Rainbow troutwill use almost all thesehabitats depending on the genetic habitants and trout population(Tower, 2012). The prime rainbow trout water habitats are usually clear, clean and cold(Berrill, MacIntyre, Noble, Kankainen & Turnbull, 2012). Rainbow trout rely on different types of food substances making them be opportunistic feeders. Their feeds range from small insects to crayfish( FAO ,2015). The advantage of farming rainbow trout in the artificial pound is that they quickly adaptto different types of artificial food provided. Rainbow trout normallyspawn in main river channels and in lakes tributaries including both inlets and outlets( FAO ,2015). This usually happens once or twice in a year during the spring and early summer. The female rainbowtrout normally lay a portion of her eggs where male will later pass on and fertilize them(Heather, 2012). Farmers can harvest juveniles later and take them to their fish ponds. Rainbow trout do not spawn on the fisheries thus the juveniles can only be artificiallyhatched or collected in the tributaries(Heather, 2012). A sufficient water depth is required in the tributaries to ensure the eggs get enough oxygen and the metabolic waste can be freely be removed.

+13062052269

info@desklib.com

New Zealand Trout Farming Industry Analysis

Contribute Materials