Egg Industry Presentations

Options for Conversion and Renovation -- Tom Lohr -- Henning Construction

 

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Tom Lohr of Henning Construction recently reviewed options available to producers to renovate, convert or upgrade conventional A-Frame housing to alternative confined and caged systems. His presentation at the 2014 Egg Industry Issues Forum is reproduced for the benefit of those that did not attend the program.

Lohr considered alternatives including keeping the main structure with either removal of the interior and the installation of new equipment or erecting new larger houses. An important consideration is the permitting process which in many cases allows modification and upgrading without requiring additional authorization from planning bodies.

In his presentation Lohr considered both enrichable and enriched modules and aviaries.

One of the options considered was to renovate high-rise houses by installing two 3-tier enriched modules in an existing unit with A-frame cages over a pit. At a density of 67 inches2 holding 200,000 hens, cost would range from $14 to $17 per bird. At 116 inches2 the house would hold 120,000 hens at a cost of $21 to $26 per bird.

Converting an existing high-rise house to an aviary system would allow from 76,000 to 94,000 to be housed depending on selection of modules and the eave-height of the house. Based on capacity the cost per hen for the conversion would range from $23 to $33 with a 2-floor configuration. If a single-floor option is dictated by the height of the house, the cost to accommodate 39,000 to 47,000 hens would range from $26 to $35 per bird.

Some conversions have involved demolition of two adjacent high-rise houses holding 100,000 hens each and erecting one large house with manure storage. At 67 inches2 a single large house could hold 372,000 hens at $15 per bird. Using enrichable modules at an allowance of 116 inches2 and a capacity of 215,000 hens, the cost would rise to $26 per bird.

If enriched cages are installed, allowing 116 inches2 and holding 215,000 hens, the cost for the project would be $27 per bird. At an allowance of 124 inches2 the cost would rise to $29 per bird.


• View the Online Slide Presentation

• Download the Presentation as a PDF file

• Download the Presentation as a PowerPoint file