Low-phosphorus diet: Maintenance of growth performance and mitigation of fecal phosphorus excretion in Xia-Nan cattle.

ABSTRACT: This study was to evaluate how low phosphorus (P) diets affect growth performance and fecal P excretion in Xia-Nan cattle and to elucidate the underlying mechanisms. Thirty-two healthy Xia-Nan bulls with similar body weights (BW; 267.42 ± 45.77 kg) were assigned to four groups with eight individual replicate pens per group in a completely randomized block design, stratified by initial BW and average dry matter intake (DMI). Cattle were fed total mixed rations (concentrate-to-forage ratio 40:60) with varying dietary P levels (DM basis): 0.16% (XPA), 0.19% (XPB), 0.22% (XPC), and 0.25% (XPD; control) for 90 d. The first three groups were considered low-P treatments. Compared with the XPD group, XPA showed significantly lower average daily gain (ADG; P = 0.018) and DMI (P = 0.04

SUBMITTER: Song Y 

PROVIDER: S-EPMC12664806 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature