Effect of lysine restriction on compensatory growth, body composition and nitrogen balance of immunocastrated pigs

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This research investigates how lysine restriction influences growth, body composition, and nitrogen balance in pigs following immunocastration.
Randomly assigned 64 entire male pigs to four dietary treatments: Control (no restriction), Lys-14, Lys-28, and Lys-42.
Evaluated growth performance and nitrogen balance during a lysine restriction phase for 28 days after immunocastration.
Lysine restriction significantly affected compensatory growth rates, with growth differing across treatment groups.
Body composition analysis revealed variations in fat and muscle deposition related to lysine levels.
Nitrogen balance showed that lower lysine diets led to differences in retention rates.

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Evaluates lysine restriction impact on growth, composition, and nitrogen balance in pigs, indicating dietary implications.

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Silva et al. (2026) studied this question.

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