Navel Development

The Influence of Navel Development on Chick Quality and Corrective Measures in the Incubator

Chick quality is a critical factor in the poultry industry, as it directly affects the overall productivity and profitability of the hatchery.

One aspect that significantly impacts chick quality is navel development. A well-developed and functional navel is essential for the chick's survival and long-term health.

This paper aims to explore the relationship between navel development and chick quality, discussing the various factors that can affect navel health and proposing corrective measures that can be implemented in the incubator to optimize chick quality.


  1. The successful development of a healthy chick begins inside the incubator. The incubation process plays a vital role in determining the chick's quality and subsequent performance. One critical aspect of chick quality is the development of the navel, which serves as a conduit for nutrient transfer and waste elimination during the incubation period. A poorly developed or infected navel can lead to reduced chick quality, increased mortality rates, and compromised growth.
  2. Importance of Navel Development The navel, also known as the umbilicus, is the point of connection between the chick and its yolk sac during incubation. It serves as a channel for the transfer of vital nutrients from the yolk to the developing chick embryo. Additionally, waste products are eliminated through the navel, ensuring a healthy environment for embryonic development. A well-developed navel ensures proper absorption of nutrients and contributes to the chick's overall vitality and vigor.
  3. Factors Affecting Navel Health Several factors can influence navel development and subsequently impact chick quality:
    • Eggshell Quality: Eggshell quality plays a crucial role in determining navel health. Weak or cracked eggshells increase the risk of contamination and infection, potentially leading to navel-related issues.
    • Incubation Temperature and Humidity: Incorrect temperature and humidity levels during incubation can result in abnormal navel development. High temperatures may cause excessive moisture loss, leading to dehydration and reduced navel closure, while low temperatures can hinder navel absorption.
    • Incubation Duration: Prolonged incubation durations can cause a delay in navel closure, making chicks more susceptible to infection and external contaminants.
    • Hygiene and Sanitation: Poor hygiene practices in the incubator can introduce pathogens, increasing the risk of navel infection and subsequent chick quality issues.


  1. Common Navel-related Problems Improper navel development can give rise to various problems in chicks, including:
    • Omphalitis: Omphalitis, or yolk sac infection, is a common issue associated with navel problems. It occurs when bacteria enter the chick's body through an open or infected navel, leading to inflammation and subsequent yolk sac infection.
    • Herniation: A weak or improperly sealed navel can result in herniation, where the intestine or other abdominal organs protrude from the body. Herniated chicks are at increased risk of infection and reduced growth rates.
  2. Corrective Measures in the Incubator To improve navel development and enhance chick quality, the following measures can be implemented during incubation:
    • Optimal Incubation Conditions: Maintaining appropriate temperature and humidity levels throughout incubation is crucial for navel development. Monitoring and adjusting these parameters regularly can help ensure optimal conditions.
    • Egg Selection and Quality Control: Thoroughly inspecting and selecting eggs with sound shell quality can reduce the risk of navel-related problems. Cracked or damaged eggs should be discarded to prevent contamination.
    • Sanitation and Hygiene: Strict adherence to proper hygiene practices in the incubator is essential. Regular cleaning and disinfection can minimize the presence of pathogens and reduce the risk of navel infection.
    • Correct Incubation Duration: Adhering to the recommended incubation duration is vital to promote healthy navel closure. Deviations from the recommended timeframe may lead to delayed closure and subsequent issues.

Post-Hatch Care: Proper post-hatch care includes ensuring a clean and dry environment for the newly hatched chicks. Adequate ventilation and maintaining optimum brooding temperatures contribute to navel healing and overall chick health.


  1. Conclusion: Navel development significantly influences chick quality, affecting their survival, growth, and future productivity. Understanding the factors that influence navel health and implementing appropriate corrective measures in the incubator can help optimize chick quality and improve overall hatchery performance. By maintaining optimal incubation conditions, practicing good hygiene, and ensuring proper post-hatch care, hatcheries can enhance navel development and contribute to the production of healthy and robust chicks.


EMKA Hatchery Equipment’s Dry Hatch Technology addresses the issue of closed navels through the incubation with the absence of condensation, allowing for the day old chick to dry faster and thus close the navel faster.


Get in touch with us to see how we can help you with a Dry Hatch.


EMKA Hatchery Equipment

Stunning performance, every time !