Why Are My Chickens Skinny

Why Are My Chickens Skinny


Chickens are beloved farm animals that provide us with fresh eggs and often entertain us with their quirky behaviors. However, there are times when we notice that our chickens are becoming skinny or underweight. This can be a cause for concern, as it might indicate underlying health issues. In this post, we will delve into various factors that can contribute to skinny chickens and discuss ways to prevent and address this issue.

Factors Leading to Skinny Chickens


Chickens, like any living creatures, can experience stress. Stress can result from changes in their environment, such as sudden temperature shifts, predator attacks, traveling, shows, or illness. The impact of stress on chickens can be profound – it can lead to a decrease in their appetite, ultimately causing weight loss.


Worms and parasites that inhabit a chicken’s digestive tract can have detrimental effects on their overall health. These unwelcome guests can reduce the chicken’s appetite, leading to weight loss and compromised well-being.

Chicken Thrush

Chicken thrush is a fungal infection that can lead to a temporary increase in weight, followed by a decrease in appetite and subsequent weight loss. This infection can significantly affect a chicken’s eating habits and body condition.


Viruses and bacterial diseases are a major concern for chickens. These illnesses can result in a dramatic loss of appetite, which can lead to rapid weight loss. It’s crucial to address any signs of illness promptly to prevent further complications.


Hens that are brooding, or in the process of incubating eggs, often reduce their food intake. This decrease in appetite can lead to weight loss, as their focus shifts to their maternal duties.

Increased Exercise

Chickens that engage in more physical activity than usual may require additional nourishment to compensate for the expended energy. Failure to adjust their diet accordingly can result in weight loss.

Preventing Skinny Chickens

To ensure the well-being of your chickens and prevent weight loss, consider implementing the following strategies:

Balanced Diet

Provide your chickens with a balanced diet that includes chicken feed, vegetables, and fruits. A diverse diet can help meet their nutritional needs and maintain a healthy weight.

Coop Hygiene

Maintain a clean and pest-free coop environment. A clean living space contributes to your chickens’ overall health and reduces stress factors.

Stress Management

Create a safe and comfortable environment to minimize stress. Comfortable chickens are less likely to experience appetite disruptions and weight loss.

Regular Deworming

Regularly deworm your chickens to prevent parasitic infestations that can lead to decreased appetite and weight loss.

Monitoring and Veterinary Care

Keep a close eye on your chickens‘ weight and overall health. If you notice any changes or concerns, consult a veterinarian for professional guidance.

Assessing Chicken Weight

Underweight Chickens

Underweight chickens are at risk of illness and stress-related problems. To assess whether your chicken is underweight, feel for the keel bone – the bone that separates the breasts. If the keel bone is sharp and prominent, your chicken may be underweight.

Overweight Chickens

Overweight chickens can face difficulties in egg laying and may be prone to prolapse. To determine if your chicken is overweight, feel for the keel bone again. If you sense a layer of fat over the keel bone, the chicken might be overweight.

Managing Chicken Weight

Adding Weight

For underweight chickens, consider:

  • Supplementing their feed with growth or layer rations, scratch, or cracked corn.
  • Feeding high-fat and high-protein foods like cooked eggs, yogurt, and cheese.
  • Ensuring access to grit to aid in digestion.

Reducing Weight

For overweight chickens, try:

  • Increasing their exercise and encouraging more movement.
  • Limiting calorie-rich treats to control their weight.


Q1: What are the common reasons for chickens becoming skinny?

A1: Chickens can become skinny due to stress, parasites, chicken thrush, illness, brooding, or increased exercise. These factors can lead to a decrease in appetite and subsequent weight loss.

Q2: How can I prevent my chickens from losing weight?

A2: To prevent weight loss in chickens, ensure a balanced diet with chicken feed, vegetables, and fruits. Keep their living environment clean and stress-free, regularly deworm them, and monitor their weight. Consult a veterinarian for any concerns.

Q3: How can I assess if my chicken is underweight or overweight?

A3: Check the keel bone – if it’s sharp and prominent, the chicken may be underweight. If there’s a layer of fat, it might be overweight.

Q4: How can I help my underweight chicken gain weight?

A4: Feed high-fat and high-protein foods, supplement with growth or layer rations, and provide access to grit for digestion.

Q5: How can I help my overweight chicken lose weight?

A5: Increase their exercise, limit calorie-rich treats, and encourage movement.


Maintaining a healthy weight is crucial for the well-being of your chickens. Addressing the factors that contribute to weight loss, such as stress, parasites, illness, and inadequate diet, is essential for their overall health. By following a balanced diet, providing a clean and comfortable environment, and monitoring their weight regularly, you can ensure that your chickens remain vibrant and thriving members of your flock. If you ever have concerns about your chickens’ weight or health, consulting a veterinarian is the best course of action. Your efforts will be rewarded with happy and healthy chickens that continue to bring joy to your homestead.

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