Amer Shimaa A, A-Nasser Afaf, Al-Khalaifah Hanan S, AlSadek Dina M M, Abdel Fattah Doaa M, Roushdy Elshimaa M, Sherief Wafaa R I A, Farag Mohamed F M, Altohamy Dalia E, Abdel-Wareth Ahmed A A, Metwally Abdallah E
Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt.
Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, P.O. Box 24885, Safat 13109, Kuwait.
Animals (Basel). 2020 Dec 30;11(1):57. doi: 10.3390/ani11010057.
This trial was conducted to assess the impact of medium-chain α-monoglycerides, glycerol monolaurate (GML) supplementation on the growth performance, apparent ileal digestibility coefficient (AID%) of amino acids, intestinal histomorphology, and blood biochemical parameters of broiler chickens. Three-day-old chicks (76.82 g ± 0.40, = 200) were haphazardly allocated to four experimental groups with five replicates for each (10 chicks/replicate). The treatments consisted of basal diets supplemented with four glycerol monolaurate levels; 0, 1, 3, or 5 g kg (GML0, GML1, GML3, and GML5, respectively). Growth performance was determined at three periods (starter, grower, and finisher). Dietary GML had no significant effect on the growth performance parameters (body weight, weight gain, and feed conversion ratio) through all the experimental periods. GML1 diet increased the AID% of leucine and decreased the AID% of arginine. GML1 diet increased the duodenal and jejunal villous height and the jejunal muscle thickness. GML3 and GML5 diets increased the goblet cell count in the duodenum. GML supplementation increased the serum level of high density lipoprotein (HDL)-cholesterol. GML5 diet increased the serum levels of IgM and interleukin 10 compared to the control group. We could conclude that dietary supplementation of glycerol monolaurate can supplement broiler chicken diets up to 5 g kg to enhance the immune status and intestinal histomorphology of birds with no improving effect on growth performance.
本试验旨在评估补充中链α-单甘油酯月桂酸甘油单酯（GML）对肉鸡生长性能、氨基酸表观回肠消化率系数（AID%）、肠道组织形态学及血液生化参数的影响。将3日龄雏鸡（76.82 g±0.40，n = 200）随机分为4个实验组，每组5个重复（每个重复10只雏鸡）。处理组包括在基础日粮中添加4个月桂酸甘油单酯水平，分别为0、1、3或5 g/kg（分别为GML0、GML1、GML3和GML5）。在三个阶段（育雏期、生长期和育肥期）测定生长性能。在整个试验期，日粮GML对生长性能参数（体重、体重增加和饲料转化率）无显著影响。GML1日粮提高了亮氨酸的AID%，降低了精氨酸的AID%。GML1日粮增加了十二指肠和空肠绒毛高度以及空肠肌层厚度。GML3和GML5日粮增加了十二指肠杯状细胞数量。补充GML提高了血清高密度脂蛋白（HDL）胆固醇水平。与对照组相比，GML5日粮提高了血清IgM和白细胞介素10水平。我们可以得出结论，日粮中添加月桂酸甘油单酯可在高达5 g/kg的水平补充肉鸡日粮，以提高鸡的免疫状态和肠道组织形态学，而对生长性能无改善作用。
