Mar 26, 2020

A new approach for quantifying phosphorus requirement in an Amazonian fish using CT-scanning

BioRxiv : the Preprint Server for Biology
L. MenezesC. Souto

Abstract

Phosphorus (P) is an essential mineral for fish growth, as it plays pivotal roles in skeletal development and energy transfer reactions. However, the dietary requirement of this mineral is variable among fish species and the growth stages. Thus, this study aimed to determine the digestible P (dP) requirement for tambaqui in the initial growth stage ({+/-}17 to 150g) using growth data, mineralization of the whole body, vertebrae and scales, as well as blood chemistry as response parameters. A total of 192 tambaqui juveniles of approximately 17 {+/-} 0.85 g were stocked into a water recirculation system. Fish were assigned to 24 70L-tanks using randomized block design (two floors) with six treatments (1.3, 2.4, 4.8, 6.3, 7.8 and 8.8 g kg -1 dP) and four replicates. Fish were fed six semi-purified diets with increasing levels of dP for 90 days. The dietary requirement of P was estimated using regression models (P <0.05). Duncan and SNK multiple range tests were used when regression models were not fitted. No mortality or apparent signs of P deficiency were observed. All performance variables were improved with increasing levels of dP in the diet. Based on weight gain, the P requirement was 6.3g kg -1 diet while for increased carca...Continue Reading

  • References
  • Citations

References

  • We're still populating references for this paper, please check back later.
  • References
  • Citations

Citations

  • This paper may not have been cited yet.

Mentioned in this Paper

Strategy
Genome
Genome Assembly Sequence
Genetic Research
Drosophila
Bio-Informatics
Genomics
Comparative Genomic Analysis
Psathyrella
Drosophila

Related Feeds

BioRxiv & MedRxiv Preprints

BioRxiv and MedRxiv are the preprint servers for biology and health sciences respectively, operated by Cold Spring Harbor Laboratory. Here are the latest preprint articles (which are not peer-reviewed) from BioRxiv and MedRxiv.

Bioinformatics in Biomedicine (Preprints)

Bioinformatics in biomedicine incorporates computer science, biology, chemistry, medicine, mathematics and statistics. Discover the latest preprints on bioinformatics in biomedicine here.