https://commons.ru.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 https://commons.ru.ac.za/vital/access/manager/Repository/vital:5162 Wed 12 May 2021 23:08:18 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:3931 Wed 12 May 2021 22:17:42 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5207 154 mm TL were mature. S. marginata is a batch spawner, releasing a minimum of 3 batches of eggs per year. Relative fecundity is high (34000 eggs per year I kg) and this coupled with the protracted spawning season would make it possible to obtain adequate numbers of juveniles (for farming) for approximately five to six months of the year. Comparative analysis of the biological characteristics in relation to other soles farmed elsewhere in the world suggests that S. marginata is a suitable candidate for marine fish culture in South Africa.]]> Wed 12 May 2021 20:59:20 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4761 Wed 12 May 2021 20:35:41 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5780 Wed 12 May 2021 20:35:19 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5337 Wed 12 May 2021 20:26:41 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5694 0.05) between the results of the two methods of analysis, although direct observations appeared to be a superior method for assessing the diet of giraffe. The diet of giraffe in the Eastern Cape Province was similar to that within their native range with a deciduous species from the genus Acacia (Acacia karroo) being the most important component of the diet. However, giraffe in the Eastern Cape Province consumed more evergreen plant species than those within their native range. The relative lack of deciduous species in the Eastern Cape Province provides a likely explanation for such a result. Seasonal variation in the consumption of the most important species in the diet was evident and this was attributed to the deciduous nature of A. karroo and the seasonal growth of new shoots which were more palatable. The vegetation of the areas most commonly utilised by giraffe at each site was sampled using the point-centred-quarter method and the results related to the frequency of each species in the diet to calculate preference indices. Giraffe preference was strongest for A. karroo and this was attributed to the highly favourable chemical composition of the species. The browse utilisation of giraffe at each site was determined using the twig-length method and intake rates for the three most important species in the diet calculated using a pre-existing regression equation. Male giraffe fed at a higher rate than females. This was probably due to males adopting a “time-minimising” strategy to their feeding in order to allow more time for reproductive pursuits. Giraffe browse utilisation was highest where giraffe density was highest. However, several species were more heavily browsed than others even when giraffe density was low, suggesting that giraffe are capable of negatively affecting the indigenous flora of the province. I conclude that giraffe numbers should be reduced relative to property size in the Eastern Cape Province and that research into the impact of not only giraffe but the combined effects of giraffe and other extralimital herbivores on the indigenous flora and fauna be continued.]]> Wed 12 May 2021 20:07:54 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:10128 Wed 12 May 2021 19:52:19 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5914 Wed 12 May 2021 19:23:16 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:11004 Wed 12 May 2021 19:09:14 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5038 Wed 12 May 2021 19:00:22 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:11072 Wed 12 May 2021 18:54:25 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:3921 Wed 12 May 2021 18:42:58 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5007 Wed 12 May 2021 17:58:05 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5659 Wed 12 May 2021 17:54:49 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4628 Wed 12 May 2021 17:46:38 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4704 Wed 12 May 2021 17:37:34 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4756 Wed 12 May 2021 17:10:03 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4134 Wed 12 May 2021 17:09:04 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4093 Wed 12 May 2021 17:08:01 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5918 Wed 12 May 2021 15:45:05 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4767 Thu 15 Jul 2021 19:31:33 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5829 Thu 13 May 2021 13:43:18 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5197 0.05) in the specific growth rates, feed efficiencies and body composition were recorded for fish fed 2, 3 and 4 times a day. Feed intake was used to calculate an optimal daily ration and feeding two meals a day resulted in an optimal daily ration of 4% BW/day. A gut evacuation time of 7.25 hours indicates that fish fed twice a day probably had sufficient time to digest their food and evacuate their guts, resulting in the same daily feed intake as fish given 3 and 4 meals a day. Results conclude that under the present experimental conditions, a minimum daily ration of 4% BW/day, fed twice a day (in the morning and evening) is required for optimal growth (SGR= 1.33± 0.1), feed efficiency (FCR= 1.96± 0.4; PER= 1.44± 0.2) and body composition in juvenile dusky kob.]]> Thu 13 May 2021 08:53:20 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4870 Thu 13 May 2021 08:52:49 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5701 Thu 13 May 2021 08:45:56 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4591 Thu 13 May 2021 08:25:40 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5271 Thu 13 May 2021 07:23:07 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4133 Thu 13 May 2021 06:54:33 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5700 Thu 13 May 2021 06:42:32 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4583 Thu 13 May 2021 06:33:16 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4642 Thu 13 May 2021 06:12:00 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4705 Thu 13 May 2021 06:01:06 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:11094 Thu 13 May 2021 05:35:03 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:11087 Thu 13 May 2021 04:51:15 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:10422 Thu 13 May 2021 04:46:28 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4450 Thu 13 May 2021 03:23:18 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:11064 Thu 13 May 2021 03:21:19 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5376 Thu 13 May 2021 03:14:53 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:3763 Thu 13 May 2021 02:51:09 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:4387 Thu 13 May 2021 02:35:39 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:11086 Thu 13 May 2021 02:15:19 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5214 5 years) based on the F₀·₁ harvesting strategy. It is, therefore, recommended that the age-at-capture should be increased from 2.67 to 5 years to optimise yield.]]> Thu 13 May 2021 00:58:55 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:11005 Thu 13 May 2021 00:31:32 SAST ]]> https://commons.ru.ac.za/vital/access/manager/Repository/vital:5414 Thu 13 May 2021 00:19:55 SAST ]]>