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| 光照时间对奶牛泌乳和采食性能的影响 | |
| 引用本文： | 李云甫,杨和平,尤彬,崔抗战.光照时间对奶牛泌乳和采食性能的影响[J].家畜生态学报,2009,30(4):37-39. |
| 作者姓名： | 李云甫 杨和平 尤彬 崔抗战 |
| 作者单位： | 1. 杨凌职业技术学院,陕西,杨凌,712100 2. 榆林市动物疫病控制中心,陕西,榆林,719000 3. 陕西兴平市畜牧兽医站,陕西,兴平,713100 |
| 基金项目： | 国家科技支撑计划，陕西省重大科技专项计划，陕西省教育厅专项基金 |
| 摘 要： | 为研究光照对奶牛泌乳和采食性能的影响,分别选择处于第Ⅰ泌乳月和第Ⅳ泌乳月的90头和45头奶牛,采用人工光照的方式,使奶牛每天的光照时间分别由自然光照的9.5 h增加到15 h和18 h.试验期30 d,分析测定了产奶量、乳脂率、采食量及经济效益.结果发现当光照时间为15 h时,试验牛的产奶量和采食量均显著高于9.5 h和18 h试验牛(P＜0.05);且经济效益较好,每头奶牛每天可增收3.95元;各试验组奶牛牛奶乳脂率无显著差异(P＞0.05).综合分析表明在奶牛饲养管理中每天提供15 h光照较好. |
| 关 键 词： | 奶牛 光照 产奶量 采食量 经济效益 |
Effect of llumination Time on Lactation and Feed Performance of Dairy Cow |
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| LI Yun-fu,YANG He-ping,YOU Bin,CUI Kang-zhan.Effect of llumination Time on Lactation and Feed Performance of Dairy Cow[J].Acta Ecologae Animalis Domastici,2009,30(4):37-39. | |
| Authors: | LI Yun-fu YANG He-ping YOU Bin CUI Kang-zhan |
| Abstract: | 90 cows in first lactating month and 45 cows in IV lactating month were selected respectively to research illumination time effects on lactating and foraging performance.The illumination cows received increased form 9.5 h of natural lighting to 15 h and 18 h through artificial lighting every day.During thirty days,milk yield, milk fat rate, feed intake and economic benefit were analyzed and measured.The results showed the group with 15 h illumination was higher in milk yield and feed intake than that of 9.5 h and 18 h (P<0.05).And the 15 h group had the best economic benefits that increase income of 3.95 Yuan per cow every day.There were no significant difference between groups in milk fat rate (P>0.05).As a result,15 h illumination time is best way for cow feeding and management. |
| Keywords: | dairy cow illumination milk yield feed intake economic benefit |
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