Effects of excessive or restricted phosphorus and calcium intake during early life on markers of bone architecture and composition in pigs. (17th March 2020)

• Record Type: Journal Article
• Authors: Gerlinger, Christian; Oster, Michael; Reyer, Henry; Polley, Christian; Vollmar, Brigitte; Muráni, Eduard; Wimmers, Klaus; Wolf, Petra
• Other Names: Dobenecker Britta guestEditor.; Böswald Linda guestEditor.
• Is Part Of: Journal of animal physiology and animal nutrition. Volume 105(2021)Supplement 2
• Page Start: 52
• Page End: 62
• Publication Date: 2020-03-17
• Subjects: bone structure -- calcium homeostasis -- dietary mineral intake -- phosphorus homeostasis -- trabecular bone; Animal nutrition -- Periodicals; Feeds -- Periodicals; 636.085
• DOI: 10.1111/jpn.13286
• Languages: English
• ISSNs: 0931-2439

Abstract

Abstract: Sufficient supply of pigs with calcium (Ca) and phosphorus (P) is essential for animal health and welfare during the growth period. However, the P content in animal manure is considered as a cause of massive environmental problems in soil and aquatic ecosystems. To complement previous findings, the objective of this study is the investigation of effects of a reduced and increased Ca and P supplementation on bone mineralization and bone structure compared with the current dietary recommendation. Another aim is to find possible serum markers that would allow the assessment of adequacy of P supply for bone health during growth. The result validated that the recommended Ca and P supply is sufficient, without the addition of microbial phytases. However, addition of P has no further beneficial effects on bone stability, while P supplementation below the recommended level affects bone development and growth performance. Reduced P levels have consequences for cancellous bone density and trabecular architecture. Further fine‐tuning of the P supply in conjunction with an appropriate Ca supply will contribute to a reduction in P waste and associated environmental impact while maintaining animal health and welfare.