Agricultural and Biosystems Engineering Publications

Document Type

Article

Publication Date

2001

Journal or Book Title

Applied Engineering in Agriculture

Volume

17

Issue

2

First Page

217

Last Page

221

Research Focus Area(s)

Animal Production Systems Engineering

Abstract

An economical, low–pressure (276 kPa, 40 psi) sprinkling system was tested for its efficacy of cooling laying hens in a commercial high–rise layer house [14 Ü 130 m (46 Ü 426 ft)] in Iowa. The sprinklers, rated at 2.1 mL/s (2 gal/h) each, were equally spaced at 3 m (10 ft) apart and 2.4 m (8 ft) above the floor in each cage aisle of the layer house. They were controlled to operate 10 s every 10 min when the inside temperature exceeded 32 _ C (90 _ F). The system was shown to improve egg production by 2.6% overall and 5.6% for the top deck (P < 0.01). There was no sign of sprinkling damage to eggshell integrity. Autocorrelation analysis has the potential to quantify the impact of heat stress history on subsequent egg production response of the hen. Work is needed to optimize the layout of the sprinklers for uniform water distribution and water application rate as a function of environmental conditions.

Comments

Journal Paper No J–18811 of the Iowa Agriculture and Home Economics Experiment Station, Iowa State University, Project No. 3311. Mention of vendor or product names is for presentation clarity and does not imply endorsement by the authors or Iowa State University nor exclusion of other suitable products.

This article is from Applied Engineering in Agriculture 17, no. 2 (2001): 217–221.

Copyright Owner

American Society of Agricultural Engineers

Language

en

Date Available

December 14, 2012

File Format

application/pdf

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