ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2019, Vol. 50 ›› Issue (9): 1841-1848.doi: 10.11843/j.issn.0366-6964.2019.09.011

• ANIMAL NUTRITION AND FEEDS • Previous Articles     Next Articles

A Survey on Distribution of Phosphorus Contents in Feedstuffs for Livestock and Poultry in China

LIU Guoqing1, ZHANG Liyang1, MA Xuelian1, WANG Liangzhi2, LIU Dongyuan3, XING Guanzhong4, YANG Liu4, LI Sufen4, LIAO Xiudong1, Lü Lin1*, LUO Xugang1*   

  1. 1. Mineral Nutrition Research Division, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    2. College of Life Science and Technology, Southwest Minzu University, Chengdu 610041, China;
    3. Beijing Yuanchuang Zhihui Biotechnology Co., Ltd, Beijing 100020, China;
    4. College of Animal Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
  • Received:2019-02-11 Online:2019-09-23 Published:2019-09-23

Abstract: In order to investigate the distribution of phosphorus (P) contents in feedstuffs from different regions of China and make a rational use of feed resources, we analyzed P contents in 4 054 feed samples collected from 31 provinces (cities, municipalities) in China. The results showed that:1) The average P contents in different kinds of feedstuffs ranged from 0.35% to 7.77%. The distribution regularities of P contents were as follows:mineral feeds > animal protein feeds > plant protein feeds > cereal by-products > forage grass feeds > straw feeds > cereals. A significant difference was also observed in P contents among different feeds in the same category(P<0.05). 2) Regional comparisons among different provinces were made in P contents of corn, wheat and soybean meal, and the results showed that the P contents in feedstuffs were greatly affected by environmental changes in different regions(P<0.05). P contents in feedstuffs varied with the types of feedstuffs and different regions. The formulation of diets by using the average P contents in feedstuffs could influence its accuracy. The results from the current study would be of great significance toward having a knowledge of actual P contents in the feedstuffs to precisely formulate diets in order to ensure animal health and efficient production, and reduce feed cost and the environmental pollution of P excretion.

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