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홍종욱;김인호;권오석;민병준;이원백;문태현;이지훈
- Korean Journal of Organic Agriculture
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- v.10 no.2
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- pp.85-94
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- 2002
For Exp, 1, eighty [(DurocYorkshire)Landrace) pigs(38.63$\pm$0.68kg average initial BW) were used to evaluate the effects microbial phytase supplementation on the growth performance and nutrient digestibility in growing pigs. There were ten pigs per pen and four pens per treatment. Treatments were 1) CON(com-SBM based diet), 2) Low-P(low-P diet+500 FTU/kg microbial phytase). For overall period, ADG, ADFI and gain/feed were significantly improved(P<0.05) by supplementation of Low-P diet. Also, pigs fed Low-P diet increased N, crude ash, Ca and P digestibilities compared to pigs fed CON diet(P<0.05). For Exp. 2, sox [(DurocYorkshire) Landrace) pigs(32.7kg average initial BW) were used to evaluate the effects microbial phytase supplementation on the nutrient excretion in growing pigs. Experimental treatments were as described for Exp. 1. pigs fed Low-P diet decreased N(8.70 vs 6.43g/d), crude ash(38.13 vs. 25.33 g/d), Ca(6.03 vs. 3.93g/d) and P(4.53 vs. 2.77g/d) excretion compared to pigs fed CON diet(P<0.05). In conclusion, microbial phytase supplementation in low P diets improved growth and nutrient digestibility.
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