This study was conducted to evaluate the effects of prepelleting whole corn (WC) inclusion on body weight (BW), feed intake, feed conversion ratio (FCR), processing yield, organ development, and gut microbiome of broilers from 14 to 42 d of age. One thousand male Ross × Ross 708 broilers were randomly distributed among 4 treatments with 10 replicate pens per treatment and 25 broilers per pen (0.12 m²/chick). A common starter was fed from 1 to 14 d of age. At 14 d, 4 experimental treatments containing 0, 3, 6, and 9% WC prepelleting were provided. Feed consumption and BW were determined at 14, 28, and 42 d of age and FCR was calculated including the weights of the mortality. On day 28, 2 birds per pen were selected to evaluate the ileal and cecal microbiota. At 43 d, 10 birds/pen were processed for yield determination. Data were statistically evaluated using ANOVA procedure and means were separated by Tukey HSD test. The inclusion of WC did not influence growth performance from 14 to 42 d of age (P > 0.05), but 9% WC increased the carcass yield (P < 0.05). The inclusion of WC did not influence carcass traits (P > 0.05). Inclusion of 9% WC reduced the relative proventriculus weight (P < 0.05). Romboutsia spp. and ileal anaerobes increased when the level of WC exceeded 6% (P < 0.05). These data demonstrate that as much as 9% WC can be incorporated in broiler diets before pelleting from 14 to 42 d without negative effects on broiler performance and processing yield.

这项研究的目的是评估14到42天肉仔鸡整粒玉米（WC）的加入对体重（BW），采食量，饲料转化率（FCR），加工产量，器官发育和肠道微生物组的影响。年龄。一千只雄性Ross×Ross 708肉鸡被随机分配到4个处理中，每个处理10个重复笔和25个肉鸡（0.12 m ²/小鸡）。普通的起子是从1到14 d的年龄喂养的。在第14天，提供了4种包含0、3、6和9％WC预造粒的实验处理。确定饲料消耗量和体重，分别在14、28和42 d龄，并计算FCR，包括死亡率。在第28天，选择每只钢笔2只鸟以评估回肠和盲肠微生物群。在第43天，处理10只禽/笔以测定产量。使用ANOVA程序对数据进行统计学评估，并通过Tukey HSD测试分离平均值。从14到42 d的年龄，WC的加入对生长性能没有影响（P  > 0.05），但是9％WC增加了car体的产量（P  <0.05）。WC的加入不会影响体性状（P > 0.05）。包含9％的WC减少了相对的前庭重量（P  <0.05）。核糖核酸属 WC超过6％时回肠厌氧菌增加（P  <0.05）。这些数据表明，在制粒14到42天之前，可将多达9％的WC掺入肉鸡日粮中，而对肉鸡的性能和加工产量没有负面影响。