In fact, our ancestors who aimed to raise professional egg-laying hens also used similar training methods. Through continuous artificial breeding, they gradually improved the hens’ laying performance, increased their egg production, and eventually developed into specialized layers. When selecting high-performance laying hens, egg production is the most critical metric, but appearance also plays an important role that shouldn’t be overlooked.
Many people might think, “What’s the difference between a layer and a regular chicken? They all look the same.†However, there's more to it than meets the eye. The size of a laying hen is crucial because it directly affects how many eggs she can produce. What defines a good laying hen in terms of size? One key indicator is the width of her chest.
Pan Yuhua explains: "If you want to select hens with a wide chest, the egg production rate will be higher, and the egg production will increase." This is a skeletal structure found in laying hens, and the angle formed by the chest is known as the keel. Why does a wider chest influence egg production?
Teacher Pan explains: "This is related to genetics. A wider chest means the bird has more flesh, which grows faster. If the meat grows faster, the hen lays fewer eggs. Genetically, there's a trade-off between meat growth and egg production—when one increases, the other tends to decrease. So if you focus too much on meat yield, egg production drops. Conversely, if you emphasize egg production, the chest becomes narrower."
To summarize, the expert says: "Hens that grow faster in meat tend to lay fewer eggs, while those that are leaner and not overly fat tend to lay more eggs. Therefore, a slim and well-proportioned body is another characteristic of high-producing laying hens."
The ability to lay eggs and maintain a good appearance is a key trait of professional laying hens. When choosing them, these characteristics should be considered. However, after years of selective breeding, there are now many varieties of professional laying hens. Each breed has its own name and strain, and it's important to know the differences among them.
Teacher Pan adds: "Generally speaking, today’s professional laying hens are mainly categorized based on the color of the eggshells—brown-shelled eggs, white-shelled eggs, and more recently, pink-shelled eggs. These are the main types, though there are also some less common ones."
In China, the three main strains of commercial laying hens are white-shell, brown-shell, and pink-shell chickens. Within each group, there are numerous well-established and refined varieties. Choosing from within this range ensures you get a reliable and high-performing layer hen.
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Whether you're heading back to the gym after the easing of pandemic restrictions or you're continuing to invest in home exercise equipment, online classes or fitness subscriptions, it's a good opportunity to make sure that you have the best tools for muscle recovery in your arsenal to help you reach your fitness goals. To achieve true workout recovery, you'll need a blend of nutrition and physical manipulation, but you can also take advantage of high-tech recovery tools meant to minimize muscle soreness (including the hard-to-resist CBD-infused activewear). If you're looking for a workout tool with science on its side, consider a Massage Gun.
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Percussive therapy is said to help muscles recover faster while reducing muscle pain, muscle fatigue and lactic acid buildup. A percussion gun allows you to focus on a certain muscle group for immediate pain relief. They can also improve your range of motion and flexibility, encourage blood flow, help with muscle stiffness and more. Percussive therapy may even help with stress and sleep. Also, not that you should invest in one for this reason alone, but the slow-motion videos of massage guns punching muscles look insanely Insta-worthy. Just be careful with using one if you have any injuries beyond a muscle ache from a tough workout.
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