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核心技术专利：CN118964589B侵权必究

核心技术专利：CN118964589B侵权必究

McMurtry J P, Plavnik I, Rosebrough R W, Steele N C, Proudman J A

USDA-Agricultural Research Service, Beltsville Agricultural Research Center, MD 20705.

Comp Biochem Physiol A Comp Physiol. 1988;91(1):67-70. doi: 10.1016/0300-9629(88)91593-9.

Plasma GH was greater (P less than 0.05) on day 12 in ad libitum-fed birds compared to restricted chicks. Conversely, maximum GH levels were found to occur in the nutrient restricted chicks during the period of accelerated growth (day 42). 2. A significant decline in circulating insulin concentrations with advancing age was evident in both ad libitum-fed and restricted chicks. 3. Feed restriction significantly suppressed circulating T3 in restricted chicks, with concentrations returning to control levels upon refeeding. 4. A significant increase in T4 with advancing age was evident in both treatment groups, with T4 being significantly greater in controls compared to restricted chicks at 54 days of age.

与限饲雏鸡相比，自由采食的鸡在第12天时血浆生长激素水平更高（P<0.05）。相反，在加速生长阶段（第42天），限饲雏鸡出现了最高的生长激素水平。2. 在自由采食和限饲的雏鸡中，随着年龄增长，循环胰岛素浓度均显著下降。3. 限饲显著抑制了限饲雏鸡的循环三碘甲状腺原氨酸水平，重新喂食后其浓度恢复到对照水平。4. 两个处理组中，随着年龄增长，甲状腺素均显著增加，在54日龄时，对照组的甲状腺素水平显著高于限饲雏鸡。

McMurtry J P, Plavnik I, Rosebrough R W, Steele N C, Proudman J A

USDA-Agricultural Research Service, Beltsville Agricultural Research Center, MD 20705.

Comp Biochem Physiol A Comp Physiol. 1988;91(1):67-70. doi: 10.1016/0300-9629(88)91593-9.

Plasma GH was greater (P less than 0.05) on day 12 in ad libitum-fed birds compared to restricted chicks. Conversely, maximum GH levels were found to occur in the nutrient restricted chicks during the period of accelerated growth (day 42). 2. A significant decline in circulating insulin concentrations with advancing age was evident in both ad libitum-fed and restricted chicks. 3. Feed restriction significantly suppressed circulating T3 in restricted chicks, with concentrations returning to control levels upon refeeding. 4. A significant increase in T4 with advancing age was evident in both treatment groups, with T4 being significantly greater in controls compared to restricted chicks at 54 days of age.

与限饲雏鸡相比，自由采食的鸡在第12天时血浆生长激素水平更高（P<0.05）。相反，在加速生长阶段（第42天），限饲雏鸡出现了最高的生长激素水平。2. 在自由采食和限饲的雏鸡中，随着年龄增长，循环胰岛素浓度均显著下降。3. 限饲显著抑制了限饲雏鸡的循环三碘甲状腺原氨酸水平，重新喂食后其浓度恢复到对照水平。4. 两个处理组中，随着年龄增长，甲状腺素均显著增加，在54日龄时，对照组的甲状腺素水平显著高于限饲雏鸡。