A.M. Evans
Department of Animal and Nutritional Sciences, Davis College of Agriculture, Davis, CA-95616, USA Natural Resources and Design, West Virginia University, WV-26506, Morgantown, North-Central West Virginia, USA
B.N. Swiger
Department of Animal and Nutritional Sciences, Davis College of Agriculture, Davis, CA-95616, USA Natural Resources and Design, West Virginia University, WV-26506, Morgantown, North-Central West Virginia, USA
K.P. Blemings
Department of Animal and Nutritional Sciences, Davis College of Agriculture, Davis, CA-95616, USA
M.S. Lilburn
Department of Animal Sciences, Ohio State University, OH-44691, Wooster, USA
J.S. Moritz
Department of Animal and Nutritional Sciences, Davis College of Agriculture, Davis, CA-95616, USA Natural Resources and Design, West Virginia University, WV-26506, Morgantown, North-Central West Virginia, USA
ABSTRACT
Sustainable practices relative to manure nutrient content are essential to commercial turkey production due to the perception that land application of poultry manure is a primary contributor to watershed eutrophication. The objective of our research was to determine the effect of finisher diet non-phytate phosphorus (nPP) levels on large tom performance and litter composition. Two experiments of similar concept were conducted and each experiment was a 2x2 factorial arrangement of treatments utilizing two commercial strains and two levels of dietary nPP (normal and low). In Experiment 1, dietary nPP was reduced during the last finisher diet [Normal (0.37) and Low (0.31)]. In Experiment 2, dietary nPP was reduced in the last 2 finisher diets [Normal (0.58) and Low (0.55) in the Finisher 1 diet and Normal (0.40) and Low (0.38) in the Finisher 2 diet]. Performance measurements were recorded from d 1-136 and d 1-126 in Exp 1 and 2, respectively and litter phosphorus (P) levels were determined. In Exp 1, both strains had similar ending weight (EW) and Strain B had an improved feed conversion ratio (FCR). There were no differences in performance or litter P due to nPP level, indicating the potential to decrease feed cost but not environmental impact. In Exp 2, Strain A had greater EW but increased FCR compared to Strain B. Regression equations that standardized strain EW predicted a decreased time of production and FCR for Strain A. The lower nPP level applied in both finisher diets decreased total litter P (p<0.065).
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How to cite this article
A.M. Evans, B.N. Swiger, K.P. Blemings, M.S. Lilburn and J.S. Moritz, 2014. Effect of Strain and Finisher Diet Non-Phytate Phosphorus Level on Performance and Litter Composition in Large Tom Production. International Journal of Poultry Science, 13: 246-252.
DOI: 10.3923/ijps.2014.246.252
URL: https://scialert.net/abstract/?doi=ijps.2014.246.252
DOI: 10.3923/ijps.2014.246.252
URL: https://scialert.net/abstract/?doi=ijps.2014.246.252
REFERENCES
- Angel, R., T.J. Tamim, A.S. Dhandu and L.E. Ellestad, 2002. Phytic acid chemistry: Influence on phytin-phosphorus availability and phytase efficacy. J. Applied Poult. Res., 11: 471-480.
CrossRefDirect Link - Case, L.A., B.J. Wood and S.P. Miller, 2012. The genetic parameters of feed efficiency and its component traits in the Turkey (Meleagris gallopavo). Genet. Sel. Evol., Vol. 44.
CrossRefDirect Link - NRC., 1994. Nutrient Requirements of Poultry. 9th Edn., National Academy Press, Washington, DC., USA., ISBN-13: 9780309048927, Pages: 176.
Direct Link - Rath, N.C., G.R. Huff, W.E. Huff and J.M. Balog, 2000. Factors regulating bone maturity and strength in poultry. Poult. Sci., 79: 1024-1032.
CrossRefPubMedDirect Link - Roberson, K.D., M.W. Klunzinger and R.A. Charbeneau, 2004. Benefit of feeding dietary calcium and nonphytate phosphorus levels above National Research Council recommendations to tom turkeys in the growing-finishing phases. Poult. Sci., 83: 689-695.
CrossRefDirect Link - Turner, K.A. and M.S. Lilburn, 1992. The effect of early protein restriction (zero to eight weeks) on skeletal development in turkey toms from two to eighteen weeks. Poult. Sci., 71: 1680-1686.
CrossRefDirect Link - Waldroup, P.W., 1999. Nutritional approaches to reducing phosphorus excretion by poultry. Poult. Sci., 78: 683-691.
CrossRefDirect Link