Zinc: an important role for livestock and poultry reproduction
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July 16 11:28:05, 2025
Zinc is an essential trace element that plays a crucial role in the growth, development, and reproductive performance of livestock and poultry. It is vital for maintaining proper immune function, and when animals lack sufficient zinc, their immunity weakens, making them more susceptible to diseases. In addition, zinc deficiency can significantly impact fertility and overall productivity. Therefore, it is important to include zinc in animal feed to ensure optimal health and performance. Common sources of zinc in feed include zinc sulfate and zinc carbonate, which are widely used in the livestock and poultry industry.
In pigs, the amount of zinc required varies depending on the stage of growth and reproductive status. A diet lacking in zinc can lead to developmental issues in piglets, such as smaller femurs, which can hinder their growth. In male pigs, low zinc levels may reduce sperm production, while in sows, zinc deficiency can disrupt the entire reproductive cycle, leading to delayed estrus or even abortion.
For poultry, zinc is equally important. Hens with inadequate zinc intake often experience lower hatching rates and poor chick development. Studies have shown that zinc-deficient diets can decrease feed intake, weight gain, egg production, fertilization rates, and hatchability. These factors directly affect the profitability and efficiency of poultry farming.
In cattle and sheep, zinc deficiency can cause serious reproductive problems. Severe cases may result in irregular reproductive cycles, reduced fertility, and underdeveloped gonads in males. Ensuring adequate zinc levels is essential for maintaining healthy breeding herds and flocks.
It is worth noting that most feed ingredients, except for fishmeal, do not provide sufficient zinc to meet the needs of animals. As a result, it is necessary to supplement feed with zinc to prevent deficiencies and avoid the negative consequences that come with it. By paying attention to zinc supplementation, farmers can improve animal health, increase productivity, and ultimately achieve better economic returns.
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