Benutting van landbouneweprodukte en gesuiwerde rioolwater in akwakultuur in ontwikkelende gebiede van Suid-Afrika
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie/South African Journal of Science and Technology
| Field | Value | |
| Title | Benutting van landbouneweprodukte en gesuiwerde rioolwater in akwakultuur in ontwikkelende gebiede van Suid-Afrika The Utilization of agricultural by-products and treated effluent water for aquaculture in developing areas of South Africa | |
| Creator | Prinsloo, J. F. | |
| Description | Die ernstige tekort aan water vir huishoudelike, landhou - en nywerheidsgebruik noodsaak die optimale benutting van hierdie skaars hulpbron in Suid - Afrika. Die gelyktydige aanwending van water in geïntegreerde voedselproduksiesisteme, waar dieselfde volume water benut word vir vis-, eend- en groenteproduksie, is een wyse waarop water veeldoelig benut kan word. Landbouafval- stowwe soos o.a. hoender-, bees- en eendemis is aangewend as organiese bemestingstowwe om die visproduksiepotensiaal daarvan met en sonder bykomende voeding, in visdamme te evalueer. Die invloed van watertemperatuur op die visproduksie potensiaal is ook ondersoek. Gebruik is gemaak van ’n kombinasie van visspesies bestaande uit Europese en Sjinese karpspesies asook die skerptandbaber, om die verskillende trofiese vlakke in 'n visdam-ekostelsel optimaal te benut. Byvoeding het uit 18- 45% proteien-vispille bestaan. As alternatief tot organiese bemesting is die produksiepotensiaal van behandelde rioolwater met die byvoeging van vispille in vismono- en -polikultuursisteem ook ondersoek. Die Europese karp en die skerptandbaber is vir die doel gebruik. Die moontlike waarde van sodanige geïntegreerde landbou-akwakultuursisteme vir landelike swart gemeenskaps- ontwikkelingprogramme word bespreek. The serious shortage of potable water supplies for domestic, agricultural and industrial requirements necessitates an investigation into the optimal utilization of this scarce commodity in South Africa. The multipurpose use of water in agriculture through its effective utilization in integrated aquaculture-agriculture food production systems is one way of optimising the application of such water. In the present series of investigations, agricultural wastes such as chicken, cattle and duck manure were applied as organic nutrient in freshwaterfish ponds with and without supplementary feeds. Fish used in polyculture production for the optimal utilization of the various trophic levels in manured fishpond ecosystems included the European and Chinese carp species and the sharptooth catfish. Supplementary food consisted of 18-45% protein fish pellets. As an alternative to organic manures, treated sewage effluent with fish pellets was used to evaluate its fish-production potential. Fish species used in monoculture and polyculture production included the European common carp and the sharptooth catfish. The role of water temperature on the fish-production potential of these systems was also investigated. The possible value of integrated aquaculture-agriculture systems in protein production in rural community development in South Africa is discussed. | |
| Publisher | AOSIS | |
| Date | 1993-07-09 | |
| Identifier | 10.4102/satnt.v12i3.566 | |
| Source | Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 12, No 3 (1993); 72-79 Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 12, No 3 (1993); 72-79 2222-4173 0254-3486 | |
| Language | eng | |
| Relation |
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:
https://journals.satnt.aosis.co.za/index.php/satnt/article/view/566/1012
|
|
ADVERTISEMENT
