@inproceedings{fdi:010072145,
  title = {{T}he use of the phytase in aquaculture, its zootechnical interests and the possibilities of incorporation in the feed [r{\'e}sum{\'e}]},
  author = {{N}iang, {M}.{S}. and {D}iadhiou, {H}.{D}. and {B}rehmer, {P}atrice},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he study turns on the use of the phytase in aquaculture, its zootechnical interests and the possibilities of incorporation in the feed. {T}he goal is to reduce the waste in phosphorus linked to the feeding of fishes, without any loss of zootechnical performances and with a decrease of feed costs. {W}e have studied the bibliography data, in order to enhance the value of the raw materials (total phosphorus, phytate and available phosphorus) used {G}ouessant for the manufacturing of rainbow trout of feed ; to determine the needs of phosphorus for aquaculture species; to determine the needs of phosphorus for aquaculture species, to determine the sings of lack of phosphorus for fishes; to study the antagonism between the phosphorus and the calcium and to study also the different forms of waste for the rainbow trout. {T}he results found in the bibliography enable us test several {H}ypothesis of feed formulation for rainbow trout with different raw materials. {T}his simulation and the calculation for wastes allowed to validate two formulation of feed: a control feed (0.5% of monocalcique phosphate) and a trial feed (supplementation with 0.002% of phytase {R}onozyme {PL} and without inorganic phosphate). {T}he feeds have been produced and sent to an experimental structure (agricultural college of {B}rehoulou).{T}he result of the formulation give a decrease of the phosphorus waste of 28% for the trial feed compared to the feed. {T}he supplementation enables a gain of 2.3 euro per ton. {T}he partial results of the current test show no significant difference yet for the zootechnical parameters (growth rate, mortality, weight gain and obvious conversion rate) between control feed and the trial one. {T}he waste measures do not show either significant difference between the control feed and the trial one, but however, the average difference would to decrease the wastes of 35.6% thanks to the use of phytase.},
  keywords = {{AFRIQUE} {DE} {L}'{OUEST} ; {SENEGAL} ; {ATLANTIQUE}},
  numero = {},
  pages = {125},
  booktitle = {{I}nternational conference {ICAWA} 2016 : extended book of abstract : the {AWA} project : ecosystem approach to the management of fisheries and the marine environment in {W}est {A}frican waters},
  year = {2017},
  ISBN = {978-2-9553602-0-5},
  URL = {https://www.documentation.ird.fr/hor/fdi:010072145},
}