饲粮中全株玉米青贮比例对杜湖杂交母羔生长性能、瘤胃发酵、养分消化率及血清学指标的影响

王金飞,杨国义,樊子菡,刘旗,张鹏程,任有蛇,杨春合,张春香

Effects of Whole Plant Corn Silage Ratio in Diet on Growth Performance, Rumen Fermentation, Nutrient Digestibility and Serological Parameters of Dorper×Hu Crossbred Female Lambs

WANG JinFei,YANG GuoYi,FAN ZiHan,LIU Qi,ZHANG PengCheng,REN YouShe,YANG ChunHe,ZHANG ChunXiang

表2 饲粮中全株玉米青贮比例对杜湖杂交母羔生长性能的影响

Table 2 Effects of whole-plant corn silage ratio in diet on the growth performance of Doper×Hu crossbred female lambs

项目 Item 组别 Groups 固定效应P值 P values of fixed effects Ⅰ组 Ⅱ组 Ⅲ组 Ⅳ组 组别 Groups 时间 Time 组别×时间 Groups×Time 体重 BW (kg) 1 d 18.70±1.10 18.44±1.09 19.08±1.16 19.01±0.96 0.4498 30 d 21.56±1.27 22.10±2.21 23.26±2.28 21.90±1.87 0.1760 60 d 27.92±1.49ab 28.53±2.38ab 29.75±2.89a 26.70±2.52b 0.0256 90 d 34.81±2.15a 35.40±2.60a 36.95±3.01a 32.64±2.42b 0.0019 平均日增重 ADG (g·d-1) 1-90 d 179.07±24.92a 188.43±29.23a 198.57±26.14a 151.39±26.91b 0.0010 ＜0.0001 0.6596 1-30 d 95.42±31.89b 121.81±41.85ab 139.45±46.59a 96.39±52.88b 0.0500 31-60 d 211.94±48.92 214.31±94.51 216.11±46.47 159.86±42.92 0.0889 61-90 d 229.86±43.89a 229.17±27.89a 240.14±22.18a 197.92±32.86b 0.0175 干物质采食量 DMI (g·d-1) 1-90 d 1.01±0.08 1.00±0.07 0.97±0.14 0.93±0.07 0.5492 ＜0.0001 0.1053 1-30 d 0.66±0.06 0.65±0.08 0.69±0.16 0.68±0.13 0.9157 31-60 d 1.10±0.10 1.06±0.05 0.98±0.16 0.94±0.08 0.0759 61-90 d 1.29±0.13 1.28±0.13 1.25±0.15 1.19±0.10 0.5408 饲料转化率 F/G 1-90 d 5.89±0.48ab 5.30±0.39bc 4.91±0.78c 6.29±0.55a 0.0020 ＜0.0001 0.0550 1-30 d 6.89±0.61a 5.34±0.68b 4.97±1.11b 6.99±1.33a 0.0025 31-60 d 5.18±0.48b 4.95±0.25b 4.54±0.74b 5.90±0.47a 0.0017 61-90 d 5.60±0.58 5.60±0.58 5.20±0.64 6.00±0.53 0.1689