Abstract Compensatory growth that can enhance the growth rate of animals and has been used commonly in production. However, the underlying mechanism is largely unknown, and the long-term effects of early protein restriction (PR) on pigs mostly remain unclear. This study aimed to investigate the long-term effects of early dietary protein restriction maintaining levels of lysine, methionine, threonine, and tryptophan on protein absorption and metabolism in pigs during the grower phase. Sixty-four weaning piglets (10.0 ± 0.73 kg) were divided into two groups: a control (NP, 200 g/kg crude protein, CP) and a protein-restricted group (RP, 140 g/kg CP). After a 30-day PR, both groups were offered the same diets ad libitum for another 74 days. PR to day 30 inhibited the growth of pigs but tended to enhance growth rate (P = 0.076) and significantly improved feed: gain in the period 70-104 days. PR significantly decreased (P

中文翻译：

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用于保育猪的赖氨酸、蛋氨酸、苏氨酸和色氨酸平衡的蛋白质限制饮食会引起随后的补偿性生长并对蛋白质代谢和器官发育产生长期影响

摘要 补偿生长可以提高动物的生长速度，在生产中得到了广泛应用。然而，其潜在机制在很大程度上是未知的，早期蛋白质限制 (PR) 对猪的长期影响大多仍不清楚。本研究旨在调查早期日粮蛋白质限制维持赖氨酸、蛋氨酸、苏氨酸和色氨酸水平对生长阶段猪蛋白质吸收和代谢的长期影响。64 头断奶仔猪（10.0 ± 0.73 kg）分为两组：对照组（NP，200 g/kg 粗蛋白，CP）和蛋白质限制组（RP，140 g/kg CP）。在 30 天 PR 后，两组均在另外 74 天内随意提供相同的饮食。PR 到第 30 天抑制了猪的生长，但倾向于提高生长速度（P = 0. 076) 和显着改善的饲料：70-104 天期间的增重。PR显着降低（P