Sophie Bennett
Composting dead chickens is an environmentally and economically sound alternative to burial, incineration, or rendering. Properly managed composters have minimal odour, but if you're looking to keep your dead chicken composter from stinking, there are a few things to keep in mind. Firstly, the location of your composter matters. It should be well-drained and away from neighbours or residences. The size of your composter is also important; it should be big enough to retain all the heat produced during decomposition. You'll also need two types of composting bins: primary and secondary. In terms of materials, you'll need carbon, nitrogen, oxygen, and moisture. The right balance of these elements will produce heat to kill pathogens. Dead birds supply the nitrogen, while carbon materials can include straw, sawdust, paper, and cornstalks. Managing the amount of moisture is crucial; the ideal moisture content is 40-50% of the total content of the compost.
| Characteristics | Values |
|---|---|
| Microorganisms | Require air, water, nitrogen, and carbon to produce heat to kill pathogens |
| Carbon Sources | Straw, sawdust, peanut hulls, rice hulls, paper, cornstalks, pine shavings, etc. |
| Nitrogen Sources | Dead birds |
| Moisture Content | 40-50% of total content; add water if too dry, cover if too wet |
| Temperature | Optimum of 140° F |
| Bin Design | Well-drained, accessible location; concrete foundation; roof for rainwater control; two bins for primary and secondary composting |
| Bin Size | Large enough to retain heat; minimum dimensions: 36" high x 40" wide |
| Layering | Alternate layers of carcasses, bulky ingredients, and litter; final layer of 10-12" of litter |
| Proportions | Carbon to nitrogen ratio of 30:1; 2 parts poultry litter to 1 part straw |
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What You'll Learn
Avoid excess moisture
The art of composting involves managing the amount of moisture. If there is too much moisture, the compost will begin to smell. The moisture content should be 40-50% of the total content of the compost. To determine whether the compost has the appropriate level of moisture, squeeze a handful of the compost mix. The amount of moisture is correct if the compost leaves wetness on the palm of your hand but does not form drops.
A small amount of water may be needed after each carcass layer. Typically, thoroughly wetting the carcasses will add sufficient water to the mix to achieve the needed moisture level. If a lot of water is needed, the litter is likely too dry and low in live bacteria. Using finished compost material or fresh litter directly out of the chicken house can prevent this situation.
If your compost starts to stink, then you probably have too much green material and not enough brown material. Brown materials can absorb excess moisture and help contain odour-causing bacteria. Simply add more brown material to your compost and give it a turn to mix in the new materials. For cold composting, you can constantly add both brown and green material to your compost pile as it ages and naturally decomposes. For hot composting, you will want to build up a pile to turn into hot compost. While you turn the first pile into compost, start a second pile where you can constantly add new brown and green materials.
The site of the composter should be well-drained. A concrete foundation keeps out rodents, dogs, etc., and prevents contamination of the surrounding area. The concrete foundation should be a minimum of 6 inches thick. A roof also controls rainwater and percolation, which can be serious problems.
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Maintain the right temperature
Maintaining the right temperature is key to keeping your dead chicken composter from stinking. The optimum composting temperature is 140° F (60° C). This temperature is required to kill any pathogens present. To reach this temperature, you must layer different composting materials in your composter. A common recipe is to use two parts poultry litter to one part chopped straw. You can also use other carbon materials such as sawdust, paper, cornstalks, and other bulky, fibrous materials.
The size of your composter is important. Mini-composters should be big enough to retain all the heat produced during decomposition. The minimum recommended dimensions for a box design are 36 inches high by 40 inches wide.
It is also important to monitor the moisture level of your compost. If there is too little moisture, the tissues of the dead birds will dehydrate and become difficult to break down. If there is too much moisture, the compost will begin to smell. The moisture content should be 40-50% of the total content of the compost. You can determine whether your compost has the appropriate level of moisture by squeezing a handful of the mix. If the compost leaves wetness on your palm but does not form drops, the amount of moisture is correct.
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Use the correct bin
When composting dead chickens, it is important to use the correct bin to prevent odour problems. The correct bin will be properly designed and constructed, with the right capacity, location, structure, and materials.
Firstly, consider the size of the bin. If you only have a few chickens, a mini-composter may be sufficient. Mini-composters can be simple wooden boxes or commercially available plastic tubs. The minimum recommended dimensions for a box design are 36 inches high by 40 inches wide. It should be big enough to retain all the heat produced during decomposition. If you have a larger number of chickens, you may need a larger composter or multiple bins, such as a primary and secondary composting bin.
Next, consider the location of the bin. It should be in a well-drained area, away from neighbours or residences, to prevent any potential odour issues. Access to spreader trucks and an all-weather road and work area are also desirable.
The bin should have a weight-bearing foundation, preferably made of concrete, to keep out rodents and dogs and prevent contamination. The concrete foundation should be at least 6 inches thick.
Use pressure-treated lumber or other rot-resistant materials for the bin construction, as these withstand the biological activity of composting.
A roof is also necessary to ensure year-round operation and control rainwater and percolation.
By using the correct bin with the proper features, you can effectively compost dead chickens while minimising odour problems.
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Get the balance of materials right
Getting the balance of materials right is key to keeping your dead chicken composter from stinking. The art of composting involves managing the amount of moisture, air, nitrogen, and carbon.
Firstly, it is important to layer different composting materials to reach the optimum composting temperature of 140° F before placing the dead birds in the bin. A compost thermometer is necessary to determine when the bin is ready for loading. A common recipe for starting compost is to use two parts poultry litter to one part chopped straw.
Secondly, the moisture content should be 40-50% of the total content of the compost. To check this, squeeze a handful of the compost mix. If there is too little moisture, the tissues of the dead birds will dehydrate and become difficult to break down. If there is too much moisture, the compost will begin to smell. A small amount of water may be needed after each carcass layer. Typically, thoroughly wetting the carcasses will add sufficient water to the mix to achieve the needed moisture level.
Thirdly, carbon materials such as sawdust, straw, paper, cornstalks, and other bulky, fibrous materials must be provided. The carbon source will perform two functions: providing carbon and acting as a bulking agent that creates pores within the pile, allowing oxygen to flow through the material. If poultry litter is to be used as the carbon source, 2-3 parts by volume of litter combined with one part by volume of dead birds should reach the desired carbon-to-nitrogen ratio.
Finally, dead birds supply the nitrogen needed for composting. The greater the microbial growth, the faster the carcasses will decompose.
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Ensure proper management
Proper management of your composter is vital to avoid odour issues and nuisance complaints. The first step in proper management is to ensure your composter is properly designed and constructed. The size of your composter is important; it should be big enough to retain all the heat produced during decomposition. The minimum recommended dimensions for a box design are 36 inches high by 40 inches wide. You will also need two types of composting bins: a primary or first-stage composting bin and a secondary or second-stage composting bin.
The location of your composter is also key. It should be well-drained, with access for spreader trucks, and an all-weather road and work area. It should not be placed near neighbours or the farm residence. A concrete foundation is critical to keep out rodents and dogs and prevent contamination of the surrounding area. It should be at least 6 inches thick. The building materials should be pressure-treated lumber or other rot-resistant materials that can withstand the biological activity of composting. A roof is also necessary to ensure year-round operation and control rainwater and percolation.
The right balance of air, water, nitrogen, and carbon in the compost will produce heat to kill any pathogens present. Dead birds supply the nitrogen, and carbon materials such as sawdust, straw, paper, cornstalks, and other bulky, fibrous materials must also be provided. The moisture content should be 40-50% of the total content of the compost. To check, squeeze a handful of the compost mix; it should leave wetness on your palm without forming drops.
To begin the composting process, layer different composting materials to reach an optimum temperature of 140° F before adding the dead birds. A compost thermometer is necessary to determine when the bin is ready and to maintain the proper temperature. A common recipe is to use two parts poultry litter to one part chopped straw. After adding the dead birds, add a layer of litter that is twice as thick (6-8 inches) as the layer of carcasses. Continue adding subsequent layers of carcasses, bulky ingredients, and litter until a height of 5-6 feet is reached. The last layer should be a cap of 10-12 inches of litter.
The greater the microbial growth, the faster the carcasses will decompose. A small amount of water may be needed after each carcass layer to achieve the right moisture level. If a lot of water is needed, the litter is likely too dry and low in live bacteria. Using finished compost material or fresh litter directly from the chicken house can prevent this.
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Frequently asked questions
You will need two types of composting bins: a primary or first-stage composting bin and a secondary or second-stage composting bin. The capacity of the first-stage composter bins can be calculated using a formula based on farm capacity, bird size at the end of the production cycle, and market weight. The unit should not be placed near neighbours or the farm residence. The site should be well-drained and provide access to spreader trucks. The foundation should be made of concrete, at least 6 inches thick, to keep out rodents and dogs. The roof should be covered to control rainwater and percolation.
The moisture content should be 40-50% of the total content of the compost. To check, squeeze a handful of the compost mix. If it leaves wetness on your palm but does not form drops, the amount of moisture is correct. If there is too little moisture, the tissues of the dead birds will dehydrate and be difficult to break down. If there is too much moisture, the compost will begin to smell.
You want a ratio of 2 parts brown materials to 1 part green material, or about twice as much brown material as green material. Brown material includes carbon sources such as wood shavings, straw, sawdust, peanut hulls, rice hulls, paper, and untreated paper. Green material includes fruit and vegetable scraps, eggshells, and old bread. If your compost starts to stink, you probably have too much green material.
