Effects of dietary nitrogen and/or phosphorus reduction on mineral homeostasis and regulatory mechanisms in young goats

Autor: Luisa S. Zillinger, Karin Hustedt, Nadine Schnepel, Frank Hirche, Marion Schmicke, Gabriele I. Stangl, Alexandra S. Muscher-Banse
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Frontiers in Veterinary Science, Vol 11 (2024)
Druh dokumentu: article
ISSN: 2297-1769
DOI: 10.3389/fvets.2024.1375329
Popis: IntroductionThe reduction of nitrogen (N) and phosphorus (P) in ruminant feed is desirable due to costs and negative environmental impact. Ruminants are able to utilize N and P through endogenous recycling, particularly in times of scarcity. When N and/or P were reduced, changes in mineral homeostasis associated with modulation of renal calcitriol metabolism occurred. The aim of this study was to investigate the potential effects of dietary N- and/or P-reduction on the regulatory mechanisms of mineral transport in the kidney and its hormonal regulation in young goats.ResultsDuring N-reduction, calcium (Ca) and magnesium (Mg) concentrations in blood decreased, accompanied by a lower protein expression of cytochrome P450 family 27 subfamily B member 1 (CYP27B1) (p = 0.016). The P-reduced fed goats had low blood phosphate concentrations with simultaneously high Ca and Mg levels. The insulin-like growth factor 1 concentrations decreased significantly with P-reduction. Furthermore, gene expression of CYP27B1 (p
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