Changes in duodenal and nephritic Ca and P absorption in hens during different egg-laying periods
Jishuang San, Zaixiang Zhang, Shuyang Bu, Mingxi Zhang, Jianmin Hu, Jiancheng Yang, Gaofeng Wu
Abstract
mRNA expression was markedly lower during the peak and late egg-laying periods than during the early egg-laying period. In conclusion, the present study indicated that the increased duodenal and nephritic Ca absorption during the peak and late egg-laying periods may be associated with the VD-VDR pathway, while the decreased P absorption despite relatively stable serum P levels in all three egg-laying stages may associated with osteolysis.
Topics & Concepts
EggshellEndocrinologyInternal medicineBiologyAndrologyChemistryMedicineEcologyAnimal Nutrition and PhysiologyRegulation of Appetite and ObesityVitamin D Research Studies