Flachowsky G, Richter G H, Ochrimenko W I, Matthey M
Wissenschaftsbereich Tierernährungschemie, Agrarwissenschaftliche Fakultät, Universität Leipzig.
Arch Tierernahr. 1990 Oct;40(10):991-1004. doi: 10.1080/17450399009428450.
Four digestion experiments with 5 wethers each (0, 15, 30 or 60 mg avoparcin per animal and day), three individual feeding experiments (28, 18 or 56 bulls per experiment; 0 and 150/200; 0, 250 and 500 or 0 and 200 mg avoparcin per animal and day in the experiments 1, 2 or 3) and two group feeding experiments (60 bulls and 161 heifers per experiment; salt lick stones without or with 2.5 g avoparcin per kg) were carried out in order to investigate the influence of avoparcin on apparent digestibility, figures of rumen fermentation, fattening and slaughtering results as well as protein, fat and energy retention. Avoparcin supplementation did not significantly influence the apparent digestibility of organic matter and crude nutrients. Concentration of acetate of rumen liquid was decreased (16 or 36) and that of propionate was increased (25 or 50 mmoles per mol) when 200 or 500 mg avoparcin per animal and day were added. Acetate:propionate ratio decreased from 4.2 to 3.5 and 3.1:1. Avoparcin did not influence feed intake, enhanced daily weight gain (37 to 174 g per animal and day) and improved feed efficiency (5 to 26%). Salt lick stones with avoparcin increased weight gain (58 and 96 g per animal and day). Slaughtering results and body composition of bulls were not influenced by avoparcin. Daily retention of protein, fat and energy was significantly increased (16 to 18%; P less than 0.05) when avoparcin was supplemented.
进行了四项消化试验，每项试验用5只阉羊（每只动物每天分别给予0、15、30或60毫克阿伏帕星），三项个体饲养试验（每项试验分别用28、18或56头公牛；试验1、2或3中每只动物每天分别给予0和150/200、0、250和500或0和200毫克阿伏帕星）以及两项群体饲养试验（每项试验分别用60头公牛和161头小母牛；添加或不添加每千克含2.5克阿伏帕星的盐舔石），以研究阿伏帕星对表观消化率、瘤胃发酵指标、育肥和屠宰结果以及蛋白质、脂肪和能量保留的影响。添加阿伏帕星对有机物和粗养分的表观消化率没有显著影响。当每只动物每天添加200或500毫克阿伏帕星时，瘤胃液中乙酸浓度降低（16或36），丙酸浓度升高（每摩尔25或50毫摩尔）。乙酸与丙酸的比例从4.2降至3.5和3.1:1。阿伏帕星不影响采食量，提高了日增重（每只动物每天37至174克）并改善了饲料效率（提高5%至26%）。含阿伏帕星的盐舔石增加了体重增加量（每只动物每天58和96克）。阿伏帕星对公牛的屠宰结果和身体组成没有影响。添加阿伏帕星时，蛋白质、脂肪和能量的每日保留量显著增加（16%至18%；P<0.05）。
