https://vital.seals.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 https://vital.seals.ac.za/vital/access/manager/Repository/vital:4802 Wed 12 May 2021 20:08:55 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:3811 Wed 12 May 2021 19:30:12 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:5443 Wed 12 May 2021 18:55:44 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:4587 Wed 12 May 2021 18:40:04 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:3881 Wed 12 May 2021 18:16:06 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:5597 Wed 12 May 2021 18:03:34 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:5448 Wed 12 May 2021 17:40:55 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:4959 Wed 12 May 2021 16:12:30 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:5622 Wed 12 May 2021 15:45:11 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:5188 Wed 07 Jul 2021 11:21:52 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:21150 18oC) on the nutrient requirements of rainbow trout. This review led to the hypothesis that as the temperature exceeds the optimum the growth potential of trout decreases with a theoretical concomitant decrease in the protein requirement. However, the increased metabolic rates of the fish should be reflected by an increased demand for lipids. The experiments designed to test this hypothesis revealed that at temperatures in excess of 18 oC the protein requirement for small (4.5g) and larger (>25g) juvenile rainbow trout are 40 and 35% respectively. This represents a decrease of 10% for the small juveniles and no change for larger juveniles compared to their requirements at optimum temperatures. The lipid requirements for the small as well as the larger juveniles increased by approximately 5 percent, to between 20 and 23 percent, compared to the requirement at optimum temperatures. Consequently the hypothesis was accepted. A review of practical diet formulation is presented along with a description of the experiments conducted to test several "least cost" diets under South African conditions. Recommendations that winter and summer diets be formulated and that the trout producers manufacture their own feeds are made. The most appropriate diet formulated and tested effected a 21 to 29.9 percent saving compared to the currently available feeds in South Africa.]]> Thu 21 Sep 2017 21:20:18 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:3879 Thu 13 May 2021 16:00:27 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:4569 Thu 13 May 2021 08:13:21 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:4881 Thu 13 May 2021 07:12:02 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:4296 Thu 13 May 2021 06:58:59 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:4905 Thu 13 May 2021 06:46:20 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:5190 Thu 13 May 2021 05:18:38 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:5445 Thu 13 May 2021 04:52:35 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:3880 Thu 13 May 2021 03:40:51 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:4570 Thu 13 May 2021 02:53:29 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:3810 Thu 13 May 2021 02:10:30 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:5194 Thu 13 May 2021 01:39:11 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:5208 Thu 13 May 2021 01:36:19 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:5392 Thu 13 May 2021 00:33:19 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:5599 Thu 13 May 2021 00:31:14 SAST ]]>