Total and water-soluble phosphorus in broiler litter over three flocks with alum litter treatment and dietary inclusion of high available phosphorus corn and phytase supplementation
| Autor: | B. D. Lott, D. R. Smith, Moore Pa, D. M. Miles, Stilborn Hl, J. D. Simmons, D. R. Rowe, S. L. Branton, Rice Dw |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Litter (animal)
chemistry.chemical_element Biology Zea mays Feces chemistry.chemical_compound Starter Animal science Animals Animal Husbandry Mortality Dent corn Poultry litter 6-Phytase Alum Phosphorus Body Weight Broiler Water General Medicine biology.organism_classification Diet Solubility chemistry Agronomy Alum Compounds Animal Nutritional Physiological Phenomena Animal Science and Zoology Phytase Chickens |
| Zdroj: | Poultry Science. 82:1544-1549 |
| ISSN: | 0032-5791 |
| DOI: | 10.1093/ps/82.10.1544 |
| Popis: | Three pen trials were conducted to determine the main effect of alum addition to litter on form of poultry litter P using a 2 x 2 factorial structure of the subunit treatments: diets including high available phosphorus/low phytate corn (HAPC) and phytase (PHYT). Male broilers (1,760 per flock) were grown to 42 d having starter diets with 0.45% available P and grower diets with 0.35% available P. In the first trial, total litter P (tP) was greatest for the yellow dent corn (YDC) diet (12 g/kg) and least for the HAPC and PHYT combination (H&P) diet (6.9 g/kg) with the individual PHYT and HAPC diets falling in between at 9.1 g/kg and 9.4 g/kg tP. Also in the first trial, the litter water-soluble P (wP) was highest for PHYT (2.8 g/kg), least for the HAPC and H&P diets (1.5 g/kg) with the YDC diet falling between (2.2 g/kg). Alum was added to the litter after the first experiment. In the second and third experiments, alum inclusion significantly reduced the wP when compared with the treatments with no alum. In the third trial, the least wP was present in the alum-HAPC treatment. Phytase, YDC, and HAPC diets with no alum litter treatment generated the most wP. Since these diets appear to have little or no difference with respect to quantity of wP, this work suggests that form of litter P generated by alternative diets should be considered as criteria when attempting to reduce P in broiler litter applied to land. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|