Do Chickens Need Calcium Supplements: A Healthy Boost

Chickens Foraging on Plants (image by Kim Gorga)

Article Summary

  • Calcium is crucial for chickens for various reasons, including egg production, bone development, and overall health.
  • Symptoms of calcium deficiency in chickens include a decline in egg production, osteoporosis, muscle spasms, and abnormal food cravings.
  • Monitoring eggshell quality, bird health, and diet helps determine the optimal calcium amounts for a flock, ensuring their health and productivity.

Calcium is an essential mineral for chickens that aids in egg production, bone development, and overall health. While most flocks get adequate calcium from their feed, supplements can be beneficial in certain situations. Here’s what you need to know about calcium and chickens.

How Much Calcium Do Chickens Need?

The calcium requirements for chickens depend on age and whether they are laying eggs. Laying hens need the most calcium – about 4% of their feed intake. This equates to roughly 3.75 grams of calcium per day for standard-sized laying hens.

Young chicks require 1% calcium in their starter feed. Their calcium needs increase as they mature to support bone growth and development. Mature hens that are not laying only need about 2% calcium in their diet.

What Is A Good Source Of Calcium For Chickens?

The best sources of calcium for chickens come from their feed. Most layer feeds are formulated with optimum calcium levels. Oyster shells and limestone are commonly used as calcium supplements in commercial chicken feeds.

Oyster shells and limestone are commonly used as calcium supplements…

In addition to feeds, chickens can get calcium from their environment. Grit, such as crushed oyster shells or granite, contains calcium and helps chickens digest their food. Chickens also will pick at egg shells, bones, and limestone deposits as sources of supplemental calcium. Offering these items free choice ensures chickens can meet their calcium needs.

Signs Of Too Much Calcium In Chickens

While calcium is important, chickens can get too much of a good thing. Excess calcium can cause health issues such as hypercalcemia.

Signs of calcium overdose in chickens include:

  • Decreased appetite and lethargy
  • Excess urates or thick urates in droppings
  • Lameness or stiff joints
  • Soft-shelled or shell-less eggs
  • Kidney problems or kidney failure

These symptoms occur because too much calcium in the bloodstream interferes with normal body processes. Reducing calcium levels usually resolves the issue.

Symptoms Of Calcium Deficiency In Chickens

A calcium deficiency can cause even more serious issues in chickens. Lack of calcium will directly impact egg production and cause the following symptoms:

  • Decline in egg production, soft or thin-shelled eggs
  • Osteoporosis and brittle bones
  • Rickets in young birds
  • Tetany, muscle spasms, or paralysis
  • Increased appetite and abnormal food cravings
  • Nest eating – consuming eggshells
Oyster Shells in The Market
Oyster Shells in The Market

These deficiency signs show the importance of adequate calcium for normal health and productivity in backyard chickens.

Do Chickens Need Calcium Supplements?

Most healthy chickens eating a balanced commercial feed will get sufficient calcium from their diet. However, certain scenarios may call for calcium supplementation:

  • Extremely high-producing hens laying over 300 eggs annually
  • Chickens fed homemade or imbalanced diets
  • Chickens not consuming enough feed
  • Older hens with increased calcium needs
  • In winter months, when hens eat less feed
  • Transition periods when hens stop laying

Talk to your veterinarian to determine if your flock would benefit from extra calcium supplementation.

Do Chickens Need Calcium In The Winter?

Winter weather can increase the calcium needs of chickens. Shorter daylight hours and colder temperatures often cause a drop in feed intake. But hens continue shelling out eggs, creating an increased demand for calcium.

FACT

Supplementing with additional oyster shells or limestone will support hen health and egg production during the winter. Providing a calcium boost 2-3 times a week helps buffer the effects of reduced feed intake.

How Often Do Chickens Need Calcium?

The ideal calcium schedule depends on your chickens’ diets and ages. Most backyard chickens only need calcium supplements periodically, not daily. Here are some general guidelines on calcium supplementation frequency:

  • Laying hens – 2-3 times per week
  • Chickens on balanced layer feed – 1-2 times per week
  • Chickens on homemade diets – 3-5 times per week
  • Young chicks – Available free choice
  • Broilers or non-laying hens – No supplementation needed

Monitor eggshell quality, bird health, and diet to determine optimal calcium amounts for your flock. Staying aware of calcium intake ensures healthy, productive chickens.

Chickens Inside a Tractor Coop
Chickens Inside a Tractor Coop

Regularly assessing your chickens’ diet and nutrition is essential for maintaining their overall well-being and egg production. You can support your chickens’ health and ensure they continue to lay strong and healthy eggs by providing balanced nutrition and appropriate calcium supplementation.

Frequently Asked Questions

What can I give my chicken for calcium?

You can provide calcium to your chickens through various sources such as crushed eggshells, oyster shells, limestone, or commercially available calcium supplements specifically formulated for poultry. These supplements help maintain their bone health and support eggshell formation.

When should I start giving my chickens calcium?

Chickens should start receiving calcium supplements when they reach the point of lay, typically around 18-20 weeks of age. At this stage, they require additional calcium to support the development of strong eggshells.

What happens if chickens don’t get enough calcium?

If chickens don’t receive enough calcium, they may develop health issues such as weak or thin eggshells, bone fractures, or even a condition called “egg-binding,” where an egg gets stuck inside the hen’s reproductive tract, leading to serious health complications.

What problems can arise if laying hens lack proper calcium levels?

Laying hens lacking proper calcium levels can suffer from a range of issues, including thin or soft eggshells, decreased egg production, bone weakness, and an increased risk of health problems like egg-binding or osteoporosis.

Will chickens eat too much calcium?

Chickens typically regulate their calcium intake well and are unlikely to consume excessive amounts of calcium if provided with appropriate sources. However, offering calcium supplements in moderation is essential to avoid imbalances or potential health issues.