PA Finishing Swine Barn Experience: Changing from Mortality Burial to a Michigan Style Composting Barn

Animal Manure Management May 22, 2017 Print Friendly and PDF
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Purpose            

In the spring of 2014, the farmer with a 2020 finishing pig barn, wanted to change from burial of mortality to composting the mortality. We will document the change and the use of the composting barn from July 2014 to Dec 2016.

What did we do? 

This 2020 finish pig barn space has about 3% mortality and expects about 250 deaths per year to compost. We discussed building a PA Michigan single wall compost barn design. The farmer built a 24x40 compost barn, with a 3 feet center dividing wall. The barn was completed in the summer of 2014 and we will track the pig barn turns and compost barn mortality loadings from July 2014 to December 2016. The barn has used about 56 cubic yards of woodchips/ bark mulch the first year and then replaced with about 40 cubic yards of sawdust for the second year.

The compost temperatures have reached 130 Degrees F and the farmer is very pleased with how the barn works and how he can mix and turn the compost. The presentation will cover barn costs, barn design and sawdust mortality loading and turning.

Field with windmills and barn
PA Michigan compost barn built at the end of the hog barn

Compost heap under shelter
Excellent example of free flowing air into the compost piles while
having a center push up wall to help turn the piles

What have we learned?              

We have documented the farmers use of the barn, the mortality rates, compost sawdust and woodchip use, and mixing schedules. We have also documented the mortality cost rates for this farm.

Future Plans    

We will highlight this PA Michigan compost barn type to other pig barns and document the use of them in Pennsylvania.

Corresponding author, title, and affiliation        

J Craig Williams

Corresponding author email    

Jcw17@psu.edu

Additional information                

http://extension.psu.edu/animals/health/composting

http://msue.anr.msu.edu/program/info/managing_animal_mortalities

The authors are solely responsible for the content of these proceedings. The technical information does not necessarily reflect the official position of the sponsoring agencies or institutions represented by planning committee members, and inclusion and distribution herein does not constitute an endorsement of views expressed by the same. Printed materials included herein are not refereed publications. Citations should appear as follows. EXAMPLE: Authors. 2017. Title of presentation. Waste to Worth: Spreading Science and Solutions. Cary, NC. April 18-21, 2017. URL of this page. Accessed on: today’s date.

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USDA / NIFA

This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.