Kirrella Abeer A, Abdo Safaa E, El-Naggar Karima, Soliman Mohamed Mohamed, Aboelenin Salama Mostafa, Dawood Mahmoud A O, Saleh Ahmed A
Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh City 33516, Egypt.
Department of Animal Wealth Development, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafr El-Sheikh City 33516, Egypt.
Animals (Basel). 2021 Apr 19;11(4):1170. doi: 10.3390/ani11041170.
The objective of this study was to examine the effects of diets supplemented with corn silk meal (CSM) and non-starch polysaccharide (NSP) enzyme on growth performance, blood biochemistry, immunological response, and growth-related gene expression in broiler chickens. A total of 270 broiler chickens were divided into six experimental groups: (1) basal diets (BD) as control; (2) BD supplemented with 0.5 g/kg feed NSP enzyme; the other four groups are CSM diets as following; (3) and (4) fed diet contain 40 and 80 kg/ton of CSM; (5) and (6) fed diet contain 40 and 80 kg/ton CSM and supplemented with 0.5 g/kg NSP enzyme. Body weight gain (BWG), feed conversion ratio (FCR), protein retention and fiber digestibility were synergistically improved ( < 0.05) when fed CSM supplemented with NSP enzyme. Moreover, a synergistic decrease ( < 0.05) in the serum glucose and total cholesterol were found. Immune organ weights and Newcastle disease virus titers were increased with CSM diets. Interestingly, the relative mRNAs of the growth hormone receptor (GHR) and insulin growth factor (IGF) were increased ( < 0.05) with the CSM and NSP enzyme: the relative mRNA expressions of cholecystokinin (CCK) and leptin were decreased by feeding CSM diets with the NSP enzyme. It could be concluded that the dietary inclusion of CSM with the NSP enzyme might improve growth performance, modify plasma lipids, and enhance immune response in broilers.
本研究的目的是考察添加玉米须粉（CSM）和非淀粉多糖（NSP）酶的日粮对肉鸡生长性能、血液生化指标、免疫反应及生长相关基因表达的影响。总共270只肉鸡被分为六个实验组：（1）基础日粮（BD）作为对照；（2）添加0.5 g/kg饲料NSP酶的BD；其他四组为如下的CSM日粮；（3）和（4）饲喂含有40和80 kg/吨CSM的日粮；（5）和（6）饲喂含有40和80 kg/吨CSM并添加0.5 g/kg NSP酶的日粮。当饲喂添加NSP酶的CSM时，体重增加（BWG）、饲料转化率（FCR）、蛋白质保留率和纤维消化率得到协同改善（<0.05）。此外，血清葡萄糖和总胆固醇协同降低（<0.05）。CSM日粮可增加免疫器官重量和新城疫病毒滴度。有趣的是，生长激素受体（GHR）和胰岛素生长因子（IGF）的相对mRNA随着CSM和NSP酶的添加而增加（<0.05）：饲喂添加NSP酶的CSM日粮可降低胆囊收缩素（CCK）和瘦素的相对mRNA表达。可以得出结论，日粮中添加CSM和NSP酶可能会改善肉鸡的生长性能、调节血脂并增强免疫反应。
