Poultry Production Department, Faculty of Agriculture, Fayoum University, Fayoum, Egypt.
J Anim Physiol Anim Nutr (Berl). 2022 Jul;106(4):742-751. doi: 10.1111/jpn.13611. Epub 2021 Jul 23.
This study aimed to investigate the effects of Marigold flower powder (MFP) and marigold flower extract (MFEx) as feed additives on the performance, blood parameters, antioxidant capacity, immunological parameters, microbial content, digestive enzymes and digestibility in growing Japanese quail. A total number of 350 birds randomly distributed into seven groups, with five replicates of 10 birds each, control diet (control group), the second, third and fourth groups were fed on a basal diet within MFP 0.6%, 0.9% and 1.2% respectively. Fifth, sixth and seventh groups received the basal diet plus MFEx 150, 200 and 250 ppm respectively. Quails fed on a diet supplemented with MFEx 200 ppm had significantly higher lipase levels (p ≤ 0.001) compared to the control and MFP 0.6% without any significant difference with other experimental groups. Moreover, all digestibility coefficients (DC) of nutrients except for nitrogen-free extract were significantly (p ≤ 0.001) affected by all dietary treatments. Quails fed on the diet supplemented with MFEx 200 ppm significantly (p ≤ 0.001) presented the best body weight, body weight gain, feed conversion ratio and the lowest feed intake over all groups. Total lipid profile, kidney functions and liver functions were significantly affected by both MFP and MFEx diets. The group treated with MFEx 250 ppm had lowest E. coli and Salmonella population and the highest Lactobacilli population number. Antioxidant parameters and immune response (except for lymphocytes) were significantly affected (p ≤ 0.001) by different levels of MFP and MFEx. In conclusion, the addition of MFEx and MFP at 200 ppm followed by 250 ppm and 1.2% MFP, respectively, to the basal diet improved product productive performance, blood parameters, antioxidant capacity, immunological parameters, microbial content and digestibility in growing Japanese quail.
本研究旨在探讨万寿菊花粉（MFP）和万寿菊花提取物（MFEx）作为饲料添加剂对生长日本鹌鹑的性能、血液参数、抗氧化能力、免疫参数、微生物含量、消化酶和消化率的影响。350 只鹌鹑被随机分为七组，每组 5 个重复，每个重复 10 只鹌鹑，对照组喂基础日粮，第 2、3 和 4 组分别在基础日粮中添加 0.6%、0.9%和 1.2%的 MFP。第 5、6 和 7 组分别添加基础日粮加 MFEx150、200 和 250ppm。与对照组和 MFP0.6%组相比，添加 MFEx200ppm 的日粮组的脂肪酶水平显著升高（p≤0.001），但与其他实验组无显著差异。此外，除无氮提取物外，所有营养素的消化率系数（DC）均受到所有日粮处理的显著影响（p≤0.001）。添加 MFEx200ppm 日粮组的鹌鹑体重、体重增重、饲料转化率最低，采食量最低，各组均显著（p≤0.001）。总脂质谱、肾功能和肝功能均受 MFP 和 MFEx 日粮的显著影响。添加 MFEx250ppm 的组大肠杆菌和沙门氏菌数量最低，乳酸菌数量最高。不同水平的 MFP 和 MFEx 显著影响（p≤0.001）抗氧化参数和免疫反应（除淋巴细胞外）。总之，在基础日粮中分别添加 200ppm 的 MFEx 和 MFP，随后添加 250ppm 和 1.2%的 MFP，可提高生长日本鹌鹑的生产性能、血液参数、抗氧化能力、免疫参数、微生物含量和消化率。
