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3 饲粮中全株玉米青贮比例对杜湖杂交母羔瘤胃发酵的影响

Table 3 Effects of whole-plant corn silage ratio in diet on rumen fermentation of Doper × Hu crossbred female lambs

项目 Item 组别 Groups P值 P value Ⅰ Ⅱ Ⅲ Ⅳ pH 6.60±0.19 6.57±0.16 6.55±0.13 6.45±0.18 0.6757 氨态氮 NH3-N (mg·dL-1) 8.23±1.39b 8.51±2.81b 9.00±1.84b 13.26±4.08a 0.0144 总挥发性脂肪酸 TVFA (mmol·L-1) 110.88±10.78 103.39±9.72 101.69±9.74 99.99±7.70 0.5581 乙酸 Acetate (%) 68.06±1.07a 67.20±0.89a 65.28±1.67b 64.90±1.43b 0.0036 丙酸 Propionate (%) 14.74±1.23c 17.06±0.89b 21.28±1.14a 21.37±0.52a ＜0.0001 丁酸 Butyrate (%) 14.41±1.78a 13.00±1.51a 10.86±0.74b 11.03±1.45b 0.0030 异丁酸 Isobutyrate (%) 0.92±0.05 0.86±0.08 0.74±0.04 0.84±0.08 0.0696 戊酸 Valerate (%) 0.81±0.07 0.84±0.09 0.78±0.09 0.84±0.05 0.8435 异戊酸 Isovalerate (%) 1.06±0.13 1.04±0.15 1.05±0.10 1.07±0.17 0.9924 乙酸/丙酸 Acetate/Propionate 4.72±0.19a 3.95±0.18b 3.07±0.23c 3.05±0.16c ＜0.0001