Emily Carter
A big lump on a chicken's neck is usually a full crop, a pouch in the oesophagus where food is stored and ground up for digestion. However, if the crop does not empty overnight, it can cause a condition called sour crop, where the food begins to spoil and the crop contents become toxic. This can lead to food poisoning and even death. In some cases, the crop may become impacted, resulting in a hard lump that can be caused by overfeeding dry feed or not providing enough grit or water. While minor impactions can sometimes be treated at home, it is ideal to seek veterinary care for impacted crops.
| Characteristics | Values |
|---|---|
| Name | Crop, Breast Blister or Keel Cyst, Sternal Bursitis |
| Location | Base of the front of the neck, beneath the neck, against the breast |
| Consistency | Can be soft or hard |
| Causes | Eating indigestible material, overfeeding dry feed, not enough water, eating too much, eating and drinking too much when cold |
| Treatment | Withhold feed, give raw apple cider vinegar with water, vegetable or olive oil, probiotics, live culture yoghurt, soaked feed with a vitamin electrolyte mix |
| Prevention | Provide gravel or grit, probiotics, soft bedding or padding |
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What You'll Learn
The lump is likely the chicken's crop
The lump on your chicken's neck is most likely its crop, an expandable pouch in the oesophagus of chickens and other birds. The crop is a vital part of a chicken's digestive system, acting as a storage space for food after it has been swallowed. Food remains in the crop until it moves into the stomach, and an empty crop stimulates a chicken's appetite.
After a chicken has eaten, it is normal for the crop to feel swollen and slightly firm. However, if the swelling does not go down overnight, this could indicate a crop impaction. This can occur if the chicken has eaten indigestible material, such as straw, wood chips, or long strands of grass, or if it has not ingested enough grit or gravel to aid digestion. Impacted crops can be serious and may require veterinary attention, particularly if the mass does not pass after a few days.
If you suspect your chicken has an impacted crop, you can try treating it at home by administering a few drops of edible oil, such as vegetable or olive oil, into the back of the chicken's mouth. Allow the chicken to swallow the oil, then wait 15-20 minutes before gently massaging the crop to help the mass pass. Repeat this process two to three times throughout the day.
Another issue that can affect a chicken's crop is sour crop, a common illness caused by a yeast infection that leads to fermentation of the food in the crop. Sour crop is characterised by a swollen, squishy crop, and other symptoms include lethargy, lack of appetite, and sour-smelling breath. Treatment for sour crop involves isolating the affected bird and ensuring it has access to plenty of fresh water. In severe cases, veterinary intervention may be required, including emptying the crop and administering anti-fungal medication.
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Impacted crop
A lump on the side of a chicken's neck is usually its crop, an expandable pouch in the oesophagus of chickens and other birds. It is used to store food for digestion later in the day.
However, a chicken's crop can sometimes become impacted. This occurs when the crop becomes blocked or obstructed, preventing food from passing through the digestive system. This blockage can be caused by large food particles, foreign objects, or excessive dry feed being ingested. It can also be caused by a lack of grit or gravel in a chicken's diet, which is used to help them grind up food.
Symptoms of an impacted crop include a hard lump on the chicken's neck that does not change in size, as well as lethargy, changes in appetite, and regurgitation of food. If you suspect your chicken has an impacted crop, you should first withhold feed for a couple of days, while still providing water. You can also try to treat it at home by administering a few drops of edible oil, such as vegetable or olive oil, into the back of the chicken's mouth, followed by a gentle massage of the crop. If the mass does not pass by the next day, you should take the chicken to a veterinarian, as surgery may be required.
It is important to distinguish an impacted crop from a sour crop, which is caused by food spoiling and fermenting inside the crop, leading to a foul odour. Sour crop is treated with crop massage and antifungal remedies.
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Sour crop
A lump on the side of a chicken's neck is usually its crop, an expandable pouch in the oesophagus of chickens and other birds. The crop is an essential part of a chicken's digestive system. After a chicken swallows food, it goes to the crop, where it is temporarily stored and dissolved before passing into the gizzard and small stomach.
The key symptoms of sour crop include lethargy, lack of appetite, sour-smelling breath, and a crop that remains full and squishy. It can also lead to diarrhoea in chickens. If left untreated, sour crop can cause the chicken to become lethargic, fail to gain weight, and move its head constantly in search of food. In severe cases, it can even lead to death.
To treat sour crop, the affected chicken should be isolated from the flock and provided with ample fresh water. Food should be withheld for the first 24 hours to allow the crop to empty. Some sources recommend adding apple cider vinegar to the drinking water to combat the yeast infection. In mild cases, home treatment may be effective. However, in more severe cases, veterinary intervention may be required, and surgery may be necessary to remove the blockage.
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Breast blister
A big lump on a chicken's neck is most likely a crop, an expandable pouch in the oesophagus of chickens and other birds that is part of the digestive system. The crop can become impacted, causing a hard lump, if the chicken eats indigestible matter, such as straw, wood chips, or long weeds, or if it is not given enough grit or gravel to digest its food. This can be treated at home by placing a few drops of vegetable or olive oil at the back of the chicken's mouth and gently massaging the crop. If the mass does not pass by the next day, a veterinarian should be consulted.
Another possible cause of a hard lump on a chicken's chest is a breast blister, also known as a keel cyst or sternal bursitis. This lump results from inflammation of the chicken's keel bone and is most common in chickens that are injured, sick, or obese. Treatment for breast blisters includes the use of antibiotics to prevent secondary infection, and providing soft bedding or padding to prevent further irritation.
Treatment for breast blisters in chickens involves addressing the underlying cause and managing symptoms. It is important to provide a soft and comfortable environment for the chicken, with bedding or padding to reduce pressure on the keel bone. In some cases, antibiotics may be necessary to prevent secondary infections, especially if the blister has broken the skin.
Prevention of breast blisters includes maintaining a healthy weight in chickens and providing a clean, dry, and spacious environment to reduce the risk of injury and infection. It is also important to regularly inspect chickens for any signs of discomfort or abnormal behaviour, as early detection can help prevent more serious complications.
In summary, a big lump on a chicken's neck is most likely an impacted crop, which can be treated at home or by a veterinarian. Another possible cause is a breast blister, which is a serious condition requiring immediate treatment and preventative measures to ensure the chicken's comfort and health.
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Treatment options
If the crop does not empty overnight, it can cause a condition called "sour crop", where the contents of the crop begin to spoil, causing a bad smell and a watery, squishy texture. In this case, the crop contents should be removed by holding the chicken upside down and gently milking out the contents. This can be followed by offering a water and raw apple cider vinegar mixture (1 tablespoon of vinegar to 1/2 cup of water) to neutralise the effects of the soured crop contents. Alternatively, a few drops of a baking soda and water solution can be offered. It is important to note that this condition can be severe and sometimes irreversible, so seeking veterinary advice is recommended.
If the crop feels swollen and hard, it is likely impacted. This can be caused by overfeeding dry feed and not providing enough water, or by the chicken eating indigestible material such as straw, wood chips, or long weeds. Impacted crops can sometimes be treated at home, but veterinary care is ideal, especially if the impaction does not pass. A home treatment option involves using an eyedropper to place a few drops of edible oil, such as vegetable or olive oil, at the back of the chicken's mouth, allowing it to reach and suffuse the impaction. This can be followed by gently massaging the crop. If the mass does not pass within a day, veterinary attention is necessary, and surgery may be required.
In some cases, a lump on a chicken's neck could indicate squamous cell carcinoma (SCC), a type of skin tumour that can occur anywhere on the chicken's body but is most common in the oral cavity and esophagus. SCC should be treated by a veterinarian, and treatment options may include surgery, radiation therapy, or amputation of the affected area, depending on the location and severity of the tumour.
Another potential cause of a lump on a chicken's chest is a breast blister, also known as keel cyst or sternal bursitis. This is more common in injured or sick chickens that spend a lot of time lying on their breast bone. Treatment for breast blisters may include the use of antibiotics to prevent secondary infection if the skin is broken. Providing soft bedding or padding and replacing damp bedding promptly can help prevent this condition.
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Frequently asked questions
The big lump on a chicken's neck is most likely its crop, an expandable pouch in the oesophagus of chickens and other birds, where food is stored and dissolved before passing into the gizzard and small stomach.
A hard crop is usually indicative of an impacted crop, which can be caused by a lack of grit or gravel to aid digestion, overfeeding dry feed, or feeding long strands of grass or hay.
If the impaction is minor, you can try treating your chicken at home. With assistance, drop some edible oil (such as vegetable or olive oil) into the back of the chicken's mouth and wait 15-20 minutes before gently massaging the crop. If the mass doesn't pass by the next day, you will need to take your chicken to a vet, as surgery may be required.
