Efficacy of Natuphos in sorghum-based diets of finishing swine

Journal of Animal Science
P R O'QuinnE J Gregg

Abstract

The efficacy of a recombinantly derived microbial phytase (Natuphos 5000, BASF Corp.) was evaluated in sorghum-soybean meal-based diets of finishing swine. During the 50- to 80- and 80- to 118-kg BW intervals, diets contained .40 and .39% plant P, respectively; control diets fed during the two weight intervals were supplemented with .08 and .04% inorganic P from dicalcium phosphate. The all plant-P diets were supplemented with 0, 300, or 500 phytase units (FTU) per kilogram of diet. Supplemental P (P = .09) and phytase (linear, P = .01) increased growth rate but did not affect feed efficiency. Dietary treatment did not affect quantitative carcass traits, CP, fat, or moisture content of the loin or taste panel scores of the cooked loin other than a quadratic decrease (P = .02) in connective tissue amount as phytase supplementation increased. Apparent ileal and total tract digestibilities of DM, GE, and N were not affected (P > .25) by phytase supplementation, whereas ileal and total tract digestibilities of Ca and P increased (P < .05 or P < .01) with increasing phytase supplementation. Ultimate load and ash content of the third and fourth metacarpals and metatarsals and serum P levels increased in response to inorganic P and ph...Continue Reading

Citations

Feb 19, 2010·Animal Science Journal = Nihon Chikusan Gakkaihō·Joshua A Jendza, Olayiwola Adeola
Nov 20, 1998·Folia Microbiologica·J Dvoráková
Apr 16, 2003·Critical Reviews in Biotechnology·Ashima Vohra, T Satyanarayana
Oct 4, 2012·Animal : an International Journal of Animal Bioscience·M P Létourneau-MontminyA Narcy

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