A 105-day experiment was conducted with 600 BIG 6 female turkeys to determine the effect of Progres (natural resin acids of Scots pine and Norway spruce, RAs) on the growth performance of birds, the incidence of footpad dermatitis (FPD), litter quality, carcass quality, the structure and function of the gastrointestinal tract – GIT (pH, viscosity, short-chain fatty acids - SCFAs) (3 treatments, 10 replicates and 20 birds per replicate). The birds received a basal diet without RAs (T1), or diets supplemented with RAs at 0.5 kg/t (starter 1 and 2, finisher) and 1.0 kg/t (grower 1 and 2) (T2), or diets supplemented with RAs at 0.75 kg/t (starter 1 and 2, finisher) and 1.5 kg/t (grower 1 and 2) (T3). The inclusion of the Progres RA preparation in turkey diets increased the body weights (BW) of birds by 1.6% (0.5-1.0 kg/t RAs) and 2.1% (0.75-1.5 kg/t RAs) - P≤ 0.05. Dietary supplementation with RAs significantly improved the values of the feed conversion ratio - FCR (P<0.05) and the European Efficiency Index - EEI (P<0.05). The addition of RAs to turkey diets reduced the incidence of FPD at 9 and 15 weeks of age (P<0.05), and improved litter quality (P<0.05). The inclusion of the analyzed preparation in turkey diets had no effect on carcass quality or meat quality, and on most parameters of GIT structure and function. The results of this study indicate that the Progres RA preparation improves the performance and wellbeing of turkeys.

用600只BIG 6雌性火鸡进行了105天的实验，以确定Progres（苏格兰松树和挪威云杉的天然树脂酸，RA）对鸟类生长性能，足垫皮炎（FPD）发生率，垫料质量的影响，car体质量，胃肠道的结构和功能– GIT（pH，粘度，短链脂肪酸-SCFA））（3次治疗，重复10次，每次重复20只鸟）。鸡只接受无RA的基础饮食（T1），或以0.5 kg / t（起始1和2，育肥猪）和1.0 kg / t（生长1和2）（T2）补充RA的饮食，或补充RA的饮食分别为0.75公斤/吨（第1台和第2台，整理器）和1.5公斤/吨（第1台和2台）（T3）。火鸡日粮中含有Progres RA制剂，禽只的体重（BW）增加了1.6％（0.5-1.0 kg / t RAs）和2.1％（0.75-1.5 kg / t RAs）-P≤0.05。日粮中添加RA可以显着提高饲料转化率FCR（P <0.05）和欧洲效率指数EEI（P ＜0.05）。在火鸡日粮中添加RAs可以降低9和15周龄FPD的发生率（P <0.05），并改善垫料质量（P <0.05）。土耳其饮食中所分析的制剂的加入对car体品质或肉品质以及GIT结构和功能的大多数参数没有影响。这项研究的结果表明，Progres RA制剂可改善火鸡的性能和健康状况。