Department of Animal Health, Faculty of Animal Husbandry & Veterinary Sciences, The University of Agriculture, Peshawar, Pakistan.
Department of Anatomy and Histology, Faculty of Biosciences, University of Veterinary and Animal Sciences, Lahore, Pakistan.
Probiotics Antimicrob Proteins. 2019 Sep;11(3):931-937. doi: 10.1007/s12602-018-9424-9.
This experiment aimed to investigate the effect of different levels of zinc (Zn) and a probiotic on the growth and intestinal health of broiler chickens. One hundred ninety-two-day-old broiler chicks were randomly assigned to 6 groups. The birds were supplemented with Zn (30 and 60 mg/kg) and a probiotic mixture alone or in combination with Zn. The results revealed that the broilers receiving a probiotic mixture alone or in combination with Zn (30 and 60 mg) increased (P < 0.05) final body weight, feed conversion ratio (FCR), and total goblet cell count in duodenum compared with the control group. Morphometry of the duodenum also revealed an increase (P < 0.05) in villus height (VH) and the ratio of VH and crypt depth in all the supplemented groups, whereas ileal VH increased (P < 0.05) only in Zn60 group when compared with control. Based on our results, we concluded that compared to the individual supplementation, the combined effect of Zn and probiotic mixture was superior in improving the growth performance and histomorphology of the intestine; however, the effect of two levels of Zn did not vary when combined with probiotic.
本实验旨在研究不同水平的锌（Zn）和益生菌对肉鸡生长和肠道健康的影响。将 192 日龄的肉鸡随机分为 6 组。这些鸟类单独或与 Zn （30 和 60mg/kg）联合补充了益生菌混合物。结果表明，与对照组相比，单独或与 Zn（30 和 60mg）联合补充益生菌混合物的肉鸡最终体重、饲料转化率（FCR）和十二指肠总杯状细胞计数增加（P<0.05）。十二指肠形态计量学也显示，所有补充组的绒毛高度（VH）和 VH 与隐窝深度的比值增加（P<0.05），而当与对照组相比时，仅 Zn60 组的回肠 VH 增加（P<0.05）。根据我们的结果，我们得出结论，与单独补充相比，Zn 和益生菌混合物的联合作用在改善生长性能和肠道组织形态学方面更优越；然而，当与益生菌联合使用时，两种水平的 Zn 的效果并没有差异。
