PMID- 25085939 OWN - NLM STAT- MEDLINE DCOM- 20150508 LR - 20200314 IS - 0032-5791 (Print) IS - 0032-5791 (Linking) VI - 93 IP - 10 DP - 2014 Oct TI - Effects of the composition of the basal diet on the evaluation of mineral phosphorus sources and interactions with phytate hydrolysis in broilers. PG - 2548-59 LID - 10.3382/ps.2014-03961 [doi] AB - The objectives of this study were to determine the availability of P from mineral phosphate sources by using different basal diets and measurement of P retention and prececal (pc) P digestibility as well as pc myo-inositol phosphate (InsP) degradation in broilers. Semi-synthetic and corn-soybean meal-based basal diets were used in experiment 1, and corn-based and wheat-based basal diets were used in experiment 2. Anhydrous monosodium phosphate (MSPa) or monocalcium phosphate monohydrate (MCPh) was supplemented to increment the P concentration by 0.05, 0.10, and 0.15% or by 0.075 and 0.150% in experiments 1 and 2, respectively. Titanium dioxide was used as an indigestible marker. Diets were pelleted through a 3-mm screen. In experiment 1, retention was measured based on total excreta collection from 20 to 24 d of age using 7 replicated birds per diet. In experiment 2, digesta from the terminal ileum was collected from 22-d-old broilers penned in groups of 19 with 5 replicated pens per diet. The P retention response to supplemented MSPa did not differ between the 2 basal diets in experiment 1. The response in pc P digestibility to MCPh supplements also did not differ between the 2 basal diets in experiment 2, as calculated by linear regression analysis. Hydrolysis of InsP6 measured on both the excreta and pc levels was high in the basal diets without a mineral P supplement. Mineral P supplementation significantly decreased (P < 0.05) InsP6 hydrolysis from the InsP-containing diets in both experiments. Thus, the choice of the basal diet did not affect the evaluation of the supplemented mineral P source. However, calculated values for mineral P sources need to be adjusted for the decline in hydrolysis of InsP contained in the basal diet that results from the P supplement. CI - (c)2014 Poultry Science Association Inc. FAU - Shastak, Y AU - Shastak Y AD - Institut fur Tierernahrung, Universitat Hohenheim, 70599 Stuttgart, Germany. FAU - Zeller, E AU - Zeller E AD - Institut fur Tierernahrung, Universitat Hohenheim, 70599 Stuttgart, Germany. FAU - Witzig, M AU - Witzig M AD - Institut fur Tierernahrung, Universitat Hohenheim, 70599 Stuttgart, Germany. FAU - Schollenberger, M AU - Schollenberger M AD - Institut fur Tierernahrung, Universitat Hohenheim, 70599 Stuttgart, Germany. FAU - Rodehutscord, M AU - Rodehutscord M AD - Institut fur Tierernahrung, Universitat Hohenheim, 70599 Stuttgart, Germany inst450@uni-hohenheim.de. LA - eng PT - Journal Article DEP - 20140801 PL - England TA - Poult Sci JT - Poultry science JID - 0401150 RN - 0 (Minerals) RN - 0 (Phosphates) RN - 0 (Phosphorus, Dietary) RN - 7IGF0S7R8I (Phytic Acid) RN - EC 3.1.3.2 (Phosphoric Monoester Hydrolases) RN - EC 3.1.3.8 (3-phytase) SB - IM MH - Animal Feed/analysis MH - Animal Nutritional Physiological Phenomena MH - Animals MH - Chickens/*physiology MH - Diet/*veterinary MH - Dietary Supplements/analysis MH - Digestion/*drug effects MH - Hydrolysis MH - Intestines/drug effects/physiology MH - Male MH - Minerals/metabolism MH - Phosphates/*metabolism MH - Phosphoric Monoester Hydrolases/metabolism MH - Phosphorus, Dietary/*metabolism MH - Phytic Acid/*metabolism MH - Random Allocation OTO - NOTNLM OT - hydrolysis OT - inositol phosphate OT - phosphorus OT - prececal digestibility OT - retention EDAT- 2014/08/03 06:00 MHDA- 2015/05/09 06:00 CRDT- 2014/08/03 06:00 PHST- 2014/08/03 06:00 [entrez] PHST- 2014/08/03 06:00 [pubmed] PHST- 2015/05/09 06:00 [medline] AID - S0032-5791(19)38500-1 [pii] AID - 10.3382/ps.2014-03961 [doi] PST - ppublish SO - Poult Sci. 2014 Oct;93(10):2548-59. doi: 10.3382/ps.2014-03961. Epub 2014 Aug 1.