The most important thing is to read whatever contract you're thinking of signing. Talk to growers in your area.
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We have looked into purchasing an existing broiler farm (smaller scale operation) from an older guy who wants out. I'm wondering if it might be due to the high cost of upgrades, like you are saying. However, it seems like there are several farmers who seem to do quite well, but obviously by busting their butt.
The condition of the houses is paramount. Is it curtain sided or solid walled?
Landscaping (or lack thereof) will tell you a whole lot about the quality of house management. A clean place usually means the houses have been taken care of.
Walk the attics and look for leaks and backed out joining plates on the trusses. Check the ceiling insulation. Check the wall insulation. Darkling beetles will thrash sidewall insulation. How worn are the belts on the fan? If they're running a fraction of an inch low in the pulley, they've likely not been maintained very well. How dirty are the shutters?
Do a static pressure test on the building. Close all the vents and doors, then turn on the biggest size fan in the house. The static pressure should be at least 0.10" w.c. A pressure of 0.15" w.c. is ideal for a 40 x 500 house with one large (48") fan running. Anything less than 0.10" w.c. means there are big air leaks. Get some smoke bombs and have a friend smoke the outside while doing a leak test.
If the house has evaporative pads (cool cells), check for scale and algae problems. If you can get your hands on a static pressure gauge, test across the pads. It should be no higher than 0.07" w.c. Anything higher suggests blocked up pads.
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Would their be any advantages/differences in doing free-range?
This is an entirely different discussion. Much lower volume, but can command a higher price. Unless you have processing and distribution lined up, might be really tough. And not many folks willing to pay what it's worth to make money.
There are plenty of resources for growers and prospective growers across the broiler belt. Both Auburn (www.poultryhouse.com) and UGA (www.poultryventilation.com) have excellent extension outreach programs geared towards housing management. I work with both of the guys that run those programs and their information and perspective is spot-on.
Auburn has the National Poultry Technology Center. They have an extension economist who focuses solely on poultry on staff (Gene Simpson). Gene knows more about how to make a broiler house operation cash flow than anyone in the western hemisphere. His extension pubs will break down costs pretty well.
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You generally get a contract for a set number of years, and are out the costs of building new houses on your own. You are paid on gain, and the buyer supplies feed.
Gain is certainly part of the equation, but efficiency of feed usage is probably as important.
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You are responsible for everything else like utilities and labor.
This depends on the contract and the integrator. Some integrators pay part of the fuel (or all of the fuel in some cases), and other expenses, such as litter material. You will be responsible for all the labor. The integrator will supply birds, feed, technical support, veterinary care, and harvesting.
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If you get a bad batch of chickens, they are slow to supply you new flocks and/or have to heat them a lot in a cold winter to get them to gain weight, you can lose money.
You typically only have to use heat through the 3rd or 4th week. After that the birds provide enough heat to keep the house to temperature. Chickens produce roughly 5 BTU/lb/h. Not hard to do a heat balance to figure out how much heat you should expect to add if you know the R-value of the building. And typically, it's keeping them cool so that they'll gain weight - yes, even in winter.
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The bigger companies are all going to the new-style houses where they have flow-through ventilation and can control the temps better.
Housing design is dictated by the type of bird grown and tunnel ventilation is not "new". It has been used for 30 years in broiler production. Cross-ventilated (or conventional housing) has persisted in areas with small bird operations (fast food bird ~ 4 lb). And those houses can't compete on operation costs - not even close. If it's a heavy bird (6 lb or bigger) the house will be tunnel ventilated for sure. No other way to keep the birds cool.
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You're looking at hundreds of thousands of dollars to build a new location, these are big houses and you would normally have two or more to make it worthwhile.
For a four house farm, you're looking at at least $1M or better. A new house up to class A specs will run roughly $200k (per house) plus stack shed, mortality handling system, tractor, de-caking machine.
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You're going to need accessibility, good supply of water, probably three-phase electricity and natural gas line tie-ins wouldn't hurt, either.
Three phase isn't necessary at all. None of the commercial ventilation, feeding, or controls equipment is 3ph. It's all single phase. I'm sure you could order 3ph for the fans, but for integrators that require variable speed fans (VERY rare, and unnecessary), they use a VFD capable of converting single phase to 3ph.
Natural gas tends to be a better buy than propane and is less volatile than propane. We've been fortunate to have mild winters the last couple of years, and oil prices have been relatively cheap. 2008-2010 were cold winters and propane was $2+ in some areas.
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Most poultry operations are on sandy soils where they can dispose of the litter without dangerously building up the phosphorous levels.
This depends entirely on where you are. There are plenty of poultry operations on non-sandy soil. I'd wager that most growers in the broiler belt without row crop or pasture operations of their own sell their litter for fertilizer. At least that's the case in my travels. Talk to Craig Coufal on campus regarding litter disposal. Craig's the expert i the state, and a good guy. He can tell you what you can expect for waste handling issues in your area.
And to clarify - I work in a research/outreach capacity out of state and not for an integrator. I'd be happy to answer any questions you have about housing design and operation; that's my particular area of expertise.
[This message has been edited by AgEng98 (edited 3/19/2013 11:35p).]
[This message has been edited by AgEng98 (edited 3/19/2013 11:52p).]