3Van der Klis JD,et al.The efficacy of phytase in corn-soybean meal-based diets for laying hens[J].Poult Sci,1997,76:1535-1542. 被引量：2
4Boling SD,et al.The effects of dietary available phosphorous levels and phytase on performance of young and older laying hens[J].Poult Sci,2000,79:224-230. 被引量：1
5Yi Z,et al.Improving phytate phosphorous avaibility in corn and soybean meal for broilers using microbial phytase and calculation of equivalency values for phytase poult[J].Science,1996,75:240-249. 被引量：1
9Pallauf J, Huter J . Studies on the Influence of Calcium Formate on Growth, Digestibility of Crude Nutrients, Nitrogen Balance and Calcium Retention in Weaned Piglets [ J ]. Animal Feed Science and Technology ,1993 ,43:65 -76. 被引量：1
10Bolling S D, Webel D M. Marvormichelis C M, et al. The Effect of Citric Acid on Phytate Phosphorus Utilization in Young Chicks and Pigs[J]. J Anim Sci, 2000,78:682 -689. 被引量：1
