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Titolo:
Effect of dietary phosphorus and vitamin D-3 on phosphorus levels in effluent from the experimental culture of rainbow trout (Oncorhynchus mykiss)
Autore:
Coloso, RM; Basantes, SP; King, K; Hendrix, MA; Fletcher, JW; Weis, P; Ferraris, RP;
Indirizzi:
Univ Med & Dent New Jersey, New Jersey Med Sch, Dept Physiol & Pharmacol, Newark, NJ 07103 USA Univ Med & Dent New Jersey Newark NJ USA 07103 acol, Newark, NJ 07103 USA SE Asian Fisheries Dev Ctr, Dept Aquaculture, Iloilo 5021, Philippines SE Asian Fisheries Dev Ctr Iloilo Philippines 5021 ilo 5021, Philippines US Fish & Wildlife Serv, NE Fishery Ctr, Dept Interior, Lamar, PA 16848 USA US Fish & Wildlife Serv Lamar PA USA 16848 Interior, Lamar, PA 16848 USA Univ Med & Dent New Jersey, New Jersey Med Sch, Dept Anat Cell Biol & Injury Sci, Newark, NJ 07103 USA Univ Med & Dent New Jersey Newark NJ USA 07103 Sci, Newark, NJ 07103 USA
Titolo Testata:
AQUACULTURE
fascicolo: 1-2, volume: 202, anno: 2001,
pagine: 145 - 161
SICI:
0044-8486(20011019)202:1-2<145:EODPAV>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTESTINAL PHOSPHATE ABSORPTION; MICROBIAL PHYTASE; CHOLECALCIFEROL; CALCIUM; TRANSPORTERS; REQUIREMENT;
Keywords:
Oncorhynchus mykiss; phosphorus; vitamin D; aquaculture effluents; environment; pollution;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Ferraris, RP Univ Med & Dent New Jersey, New Jersey Med Sch, Dept Physiol & Pharmacol, MSB-H621,185 S Orange Ave, Newark, NJ 07103 USA Univ Med & Dent New Jersey MSB-H621,185 S Orange Ave Newark NJ USA 07103
Citazione:
R.M. Coloso et al., "Effect of dietary phosphorus and vitamin D-3 on phosphorus levels in effluent from the experimental culture of rainbow trout (Oncorhynchus mykiss)", AQUACULTURE, 202(1-2), 2001, pp. 145-161

Abstract

Excessive phosphorus (P) levels in aquaculture effluents violate federallymandated limits and pose a serious threat to the freshwater environment. In rainbow trout culture, effluent P probably originates as fecal and metabolic waste product because assimilation of dietary P is relatively low. We therefore decreased dietary P and increased dietary vitamin D-3 levels, methods that enhance P assimilation in mammals, in purified and semi-purified trout diets, then monitored effluent P. Soluble effluent P reached a peak right after feeding and returned to baseline levels in between feeding times. The peak and average concentrations of soluble P in the effluent were mainly influenced by dietary P. Average P in fecal dry matter also decreased with dietary P. Neither dietary P nor vitamin D, under the conditions of the experiment had significant effects on whole body P ceffluent indicating a strategy whereby effluent P concentrations can be reduced by regulation of Pmetabolism content but P deposition (as a percentage of P intake) decreased with increased dietary P. The dietary combination of low P and high vitamin D-3 decreased soluble and fecal P levels in the (C) 2001 Elsevier Science BN. Ail rights reserved.

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Documento generato il 26/11/20 alle ore 10:20:44