Abstract There is little information available on the nutrient requirements of suckling Angora kids weighing less than 10 kg which has resulted in nutrition recommendations being based on older, heavier and weaned goats. This experiment determined the energy intake of suckling Angora kids to estimate maintenance ME requirement (MEm) and ME required for growth (MEg) for 8 and 21 day old kids. Does were housed in individual pens in an outdoor feedlot from day 47 of pregnancy. Pregnant does experienced a range of controlled nutrition treatments providing a range in live weight and body condition at kidding. From 4 days postpartum treatments were: ad libitum (AL) to allow maximum ME intake resulting in doe live weight gain; or Restricted (R) to 70% of AL, resulting in doe live weight loss until week 10 of lactation. Doe milk production was determined at days 8 and 21 of lactation, and ME intake of milk, kid liveweight change and fibre growth rate were determined. ME intake (kJ/kg0.75day) was then related to daily liveweight gain (g/kg0.75day) using multiple linear regression analysis. At 8 days of age, MEm = 1199 kJ/kg0.75day and MEg = 35.6 kJ/kg0.75day (P = 0.002). At 21 days of age, MEm = 700 kJ/kg0.75day (NS) and MEg = 24.0 kJ/kg0.75day (P

中文翻译：

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年轻的反刍前安哥拉山羊维持和生长的能量需求

摘要 关于体重低于 10 公斤的哺乳安哥拉山羊的营养需求的信息很少，这导致营养建议基于年龄较大、较重和断奶的山羊。该实验确定了哺乳安哥拉儿童的能量摄入量，以估计 8 天和 21 天大的孩子的维持 ME 需求 (MEm) 和生长所需的 ME (MEg)。从怀孕第 47 天起，它们就被关在室外饲养场的单独围栏内。怀孕确实经历了一系列受控的营养治疗，在开玩笑时提供了一系列的活体重和身体状况。从产后 4 天开始的治疗是： 随意 (AL) 以允许最大 ME 摄入量，从而导致母鹿体重增加；或 限制 (R) 为 AL 的 70%，导致母鹿体重下降，直到泌乳第 10 周。在泌乳第 8 天和第 21 天测定母猪的产奶量，并测定 ME 的牛奶摄入量、仔猪体重变化和纤维生长率。然后使用多元线性回归分析将 ME 摄入量 (kJ/kg0.75day) 与每日活重增加 (g/kg0.75day) 相关联。在 8 日龄时，MEm = 1199 kJ/kg0.75day 和 MEg = 35.6 kJ/kg0.75day (P = 0.002)。在 21 日龄时，MEm = 700 kJ/kg0.75day (NS) 和 MEg = 24.0 kJ/kg0.75day (P