High-nutrient brooding chicks have rapid growth and metabolism, but they have small stomach volume and low digestibility. They are often affected by stress changes such as temperature changes, immunity, medication, and severe rickets, affecting feed intake and body shape development. Therefore, in the early brooding period (0 to 4 weeks old), the diet should be carefully prepared so that the actual dietary nutrient level reaches 12.5 to 12.9 MJ/kg, crude protein 20% to 22%, methionine 0.45%, and sulfur. Amino acid 0.8%, lysine 1.15%, and to ensure the supply of calcium, phosphorus and other mineral trace elements and a variety of vitamins. This not only helps the chicks to form a good skeletal system, but also contributes to the formation of an effective immune system and promotes the growth of feathers so that the length and weight of the chicks can reach the standard in advance.
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