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当前位置: 首页 > 文章 > 不同营养水平日粮对荷斯坦奶公牛育肥效果的影响 中国畜牧兽医 2015,42 (7) 1705-1710
Position: Home > Articles > Effect of Different Dietary Nutrition Levels on Fattening Effect of Holstein Bulls China Animal Husbandry & Veterinary Medicine 2015,42 (7) 1705-1710

不同营养水平日粮对荷斯坦奶公牛育肥效果的影响

作  者：
李晓蒙;李秋凤;曹玉凤;于春起;李建国;高艳霞
单  位：
河北农业大学动物科技学院;福成五丰食品有限公司
关键词：
营养水平;荷斯坦奶公牛;育肥;营养物质表观消化率;血液生化指标
摘  要：
试验旨在研究不同营养水平日粮对荷斯坦奶公牛育肥效果的影响。选择4月龄左右、平均体重128kg的健康中国荷斯坦奶公牛48头,随机分成2组,每组24头。Ⅰ组饲喂低营养水平日粮(低能量、低蛋白质),Ⅱ组饲喂高营养水平日粮(高能量、高蛋白质)。预试期7d,正试期245d。结果表明,与Ⅰ组相比,Ⅱ组平均日增重极显著提高6.36%(P<0.01),料重比降低6.55%。随着日粮营养水平的提高,奶公牛粗蛋白质、粗脂肪、中性洗涤纤维、酸性洗涤纤维、钙、磷的表观消化率随之升高,但均未达到显著水平(P>0.05)。与Ⅰ组相比,Ⅱ组血清中葡萄糖、谷草转氨酶、谷丙转氨酶、生长激素含量分别显著提高12.52%、12.85%、9.68%、13.24%(P<0.05),而尿素氮含量显著降低10.98%(P<0.05)。与Ⅰ组相比,Ⅱ组养殖效益多收入1.37元/(头·d),全期效益多收入335.65元/头。综上所述,提高日粮营养水平,可提高奶公牛的育肥性能和经济效益。
译  名：
Effect of Different Dietary Nutrition Levels on Fattening Effect of Holstein Bulls
作  者：
LI Xiao-meng;LI Qiu-feng;CAO Yu-feng;YU Chun-qi;LI Jian-guo;GAO Yan-xia;College of Animal Science and Technology,Agricultural University of Hebei;Fucheng Wufeng Food Limited Company;
关键词：
nutrition levels;;Holstein bulls;;fattening;;nutrient apparent digestibility;;blood biochemical indices
摘  要：
This experiment was conducted to study the effect of different dietary nutrition levels on fattening effect of Holstein bulls.48 4-month-old Holstein bulls with an average body weight of 128 kg were allocated into two groups,groupⅠ was fed a low nutrition level diet,groupⅡ was fed a high nutrition level diet.Each group had 24 Holstein bulls.The pre-test period lasted for 7days and the trial period lasted for 245 days.The results showed that compared with groupⅠ,the ADG in group Ⅱ was significantly increased by 6.36%(P<0.01),while the F/G in group Ⅱwas decreased by 6.55%.With the increasing of dietary nutrition levels,the apparent digestibility of CP,EE,NDF,ADF,Ca and P were rising,but there was no significant differences between two groups(P>0.05).Compared with group Ⅰ,the serum GLU,AST,ALT and GH contents in group Ⅱ were increased by 12.52%,12.85%,9.68%and 13.24%(P<0.05),respectively,while the serum BUN content in group Ⅱ was decreased by 10.98%(P<0.05).Compared with groupⅠ,the feeding profits of group Ⅱincreased by 1.37yuan/(head·day),the total economic benefit of groupⅡ increased by 335.65yuan/head.In conclusion,the improvement of dietary nutrition levels could improve the fattening performance and the economic benefit of Holstein bulls.

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