Environment and flock productivity in nine commercial broiler flocks during winter conditions

Eileen Fabian, Robert W.J. Weiss, Jennifer L. Smith, Ralph Michael Hulet

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

Research has shown the detrimental effect of high ammonia level on bird performance. This study documented that significant and surprisingly high ammonia levels (27 to 122 ppm on day of chick placement) and temperature stratification (38°C [5.4°F] below target at chick level at placement) were prevalent in the broiler houses under study. Three typical commercial houses were monitored over three flock cycles to document environment conditions (temperature, humidity, ammonia) during cold weather and relate these to bird productivity. Poor flock ranking and productivity followed exposure to ammonia above 80 ppm on day of chick placement. Some flocks were successfully raised under ammonia levels at double the recommended 25 ppm brooding threshold. The growers were not aware of the magnitude of the ammonia. Reused litter, ratherthan new litter, made the problem worse.

Original languageEnglish (US)
Pages4937-4968
Number of pages32
StatePublished - Dec 1 2000
Event2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century - Milwaukee, WI., United States
Duration: Jul 9 2000Jul 12 2000

Other

Other2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century
CountryUnited States
CityMilwaukee, WI.
Period7/9/007/12/00

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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