不同粗饲料水平和补充脂肪对奶水牛采食量和泌乳性能的影响研究

本试验选用30头第一泌乳中期的奶水牛，分为5组(1个对照组和4个试验组)，每组6头。分别饲喂不同水平的高粗料和补充脂肪日粮。结果表明：①奶水牛喂75％粗饲料日粮，减重约2.5kg；奶水牛喂65％粗饲料，高脂肪（7.5%）和中等脂肪（5.0%）日粮，分别增重3和6 kg。体重比较有极显著差异（P<0.01)。②粗饲料水平和脂肪水平对干物质采食量有极显著影响（P< 0.01)。奶水牛喂75％粗饲料与65%粗饲料日粮比较，有较低的干物质采食量(19.7与21.3 kg/d)。奶水牛喂试验日粮，干物质采食量变化相似。③奶水牛喂对照和试验日粮，日均产奶量分别为8.5和8.2 kg，喂高粗料（75%）和高脂肪（7.5%）产奶较少（分别为8.1、8.2、8.25和8.35 kg/d)。在所有试验和对照日粮每千克干物质产奶量差异极显著(P<0.01)。对所有日粮，干物质采食量随时间推移而下降。

Study on Impacts of Fed Intack and Milking Ability under the Feeding Different Fodder & Fat Level for Dairy Buffalo

This study were fredium selected 30 heads first lacatation dairy buffalodevided into 5 group which 6 heads in a group and one group for control and others were experimental group.The treatment were feeding different leveal of fodder and fat dait.The result showed that the dairy buffalo body weight (BW) was reduced 2.5 kg that was fed 75%fodder;and BW increased 3 kg by fed 65% fodder plus 7.5% fat and 6 kg by fed medium fat supply.BW and the level of fodderand fat cause to DM intake wer diversity （P<0.01).There were lower DM intake(DMIT) which were 19.7 kg and 21.3 kg by feding 75％ &; 65% fodder for dairy buffalo.But the same DMIT which were the fat level at 7.5％ &; 5.0％. The daily milk yield was 8.5 kg by feedding experimental food and the control one was 8.2 kg. And the less daily milk yield that fed the 75% fodder and 7.5% fat,which were 8.1、8.2、8.25 and 8.35 kg/d.There were diversity （P<0.01) between the experimental and control group. And it seams the DMIT were reduce as the experimental time take longer.