| 摘要: |
| 【目的】研究1～30 d关中奶山羊羔羊对能量的营养需要，为建立和完善关中奶山羊饲养标准提供基础参数。【方法】选择1日龄关中奶山羊羔羊64只(公母各半)，随机分为8组，每组8只，每只为1个重复，按照“人工哺乳鲜奶＋自由采食补饲料”的培育方案进行饲养试验。准确测定羔羊的日空腹体质量、能量摄入量和日增质量，构建64只羔羊在1～30 d代谢体质量、日增质量和能量摄入量数据库，通过回归分析建立能量需要量与代谢体质量和平均日增质量之间的回归方程。【结果】建立了1～30 d羔羊对消化能、代谢能营养需要的回归方程。依据建立的回归方程提出了不同体质量（4，6，8 kg）关中奶山羊羔羊在不同日增质量（0，0.10，0.15，0.20 kg/d）条件下的能量需要量推荐标准。【结论】1～30 d关中奶山羊羔羊的维持能量需要较大，而生长能量需要较小。 |
| 关键词: 关中奶山羊 羔羊 消化能 代谢能 能量需要 |
| DOI： |
| 分类号: |
| 基金项目:国家农业部行业专项“奶山羊良种繁育及产业化技术体系建设”项目(Nyhyzx07-037） |
|
| Study on energy requirements of Guanzhong dairy goat lambs aged 1-30 days |
|
|
| Abstract: |
| 【Objective】Energy requirement of 1-30 d Guanzhong dairy goat lambs was studied to provide a basis to establish and improve the raising standards.【Method】64 neonatal lambs were selected(half male and half female) and randomly divided into 8 groups,with 8 lambs in each group and each lamb a repeat.Lambs were fed in accordance with the cultivation of the “artificial feeding milk+add libitum feeding supplement”. Lamb empty body weight,energy intake and daily gain were determined accurately every day.The database of matabotic weight,average daily gant and enery intake of 64 lambs was built.Regression analysis was carried out to establish regression equation of energy requirement,average daily gain (ADG) and metabolic weight (W0.75).【Result】The regression equations for digestible energy (DE) and metabolic energy (ME) requirements of 1-30 d lambs were built.According to the regression equation,the recommended standard of energy requirements of Guanzhong dairy goat lambs was made under the conditions of different body weight (4,6,8 kg) and different daily gain (0,0.10,0.15,0.20 kg/d).【Conclusion】1-30 d Guanzhong dairy goat lambs have larger maintenance energy requirements and less growth energy requirements. |
| Key words: Guanzhong dairy goat lamb DE ME energy requirement |
