ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2014, Vol. 45 ›› Issue (2): 249-254.doi: 10.11843/j.issn.0366-6964.2014.02.012

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Research on Measuring Ammonia Emissions of Broilers in Respiration Chambers

ZHANG Xiao-di,LU Qing-ping*,ZHANG Hong-fu,MENG Li-hui,TANG Xiang-fang   

  1. (State Key Laboratory of Animal Nutrition,Institute of Animal Science,Chinese Academy of Agricultural Sciences,Beijing 100193,China)
  • Received:2013-04-10 Online:2014-02-23 Published:2014-02-23

Abstract:

This experiment was conducted to measure the NH3 emission rate and investigate emission characteristics using respiratory chamber. Three hundred and 1-day-old healthy Arbor Acres broilers with similar body weight were randomly allotted into three respiratory chambers.The broilers were reared on the net and manure was not cleaned until 42 d.A continual monitoring system for monitoring ventilation rate and the NH3 concentration was used in this research to determine ammonia emission.The results showed as follows:total ammonia emissions during 1 to 42 d were estimated to (2 777.78±55.58)mg per bird,and mean ER was (66.14±1.32)(mg·bird-1)·d-1 with body weight (2 530.95±57.74)g.The daily ER during 1 to 18 d remains stable,and then showed a increasing trend with age of broiler.

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