Effect of dietary polyphenol-rich grape seed on growth performance, antioxidant capacity and ileal microflora in broiler chicks
Effect of dietary polyphenol-rich grape seed on growth performance, antioxidant capacity and ileal microflora in broiler chicks
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DOI：
10.1111/jpn.12688
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发表时间：
2018-02-01
影响因子：
2.7
通讯作者：
Ibrahim, S. A.
中科院分区：
文献类型：
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作者：
Abu Hafsa, S. H.;Ibrahim, S. A.
本研究旨在探讨饲粮中添加葡萄籽对肉鸡生产性能、胴体性状、血浆生化指标、抗氧化状态和回肠微生物区系的影响。试验日粮包括对照日粮（不含添加剂）和三个水平的GS粉（10、20和40 g/kg日粮）。每种饮食喂养总共300只1日龄的Cobb-500雏鸡42天。在基础日粮中添加20 g/kg的GS可提高肉鸡的最终体重和增重，提高饲料转化率，但不影响采食量。日粮中添加20 g GS显著提高了胴体产肉率、屠宰率和砂囊率（p <0.05）。然而，添加40 g/kg的GS显著降低了鸡的腹脂百分比。与对照组相比，添加GS的饮食显示出最低的乙醚提取物含量（p <0.05）。处理对肉的物理特性和干物质、粗蛋白质和灰分的化学组成无显著影响。GS组血浆蛋白、白蛋白、球蛋白、谷草转氨酶和谷丙转氨酶浓度与对照组相比无显著性变化。与对照组相比，饲喂添加GS的饮食的肉鸡具有较低的血浆葡萄糖、总脂质、甘油三酯和胆固醇水平（p <0.05）。与对照组相比，添加40 g GS显著（p <0.05）增强了还原型谷胱甘肽、过氧化氢酶、超氧化物歧化酶、谷胱甘肽过氧化物酶和GST的活性，并与显著降低的硫代巴比妥酸反应性物质水平相关。回肠pH值不受GS水平的显著影响。饲喂添加GS的日粮的肉鸡回肠链球菌的数量较低。和大肠杆菌群体，但较高的乳酸杆菌属。群体（p < .05）。没有发现由于使用GS而对鸟类健康产生不良影响。因此，GS可作为肉鸡日粮中的草药补充剂，以提高生产性能，降低血脂，增强抗氧化能力，减少回肠中的有害细菌。
In this study, we examined the effect of dietary supplementation with grape seed (GS) on the performance, carcass traits, plasma biochemistry, antioxidant status and ileal microflora in broilers. Experiment diets included a control diet (without additive) and three levels of GS powder (10, 20 and 40 g/kg of diet). Each diet was fed to a total of 300 one-day-old Cobb-500 chicks for 42 days. The addition of 20 g/kg of GS to the basal diet increased final body weight and body weight gain, improved the feed conversion ratio and did not affect feed intake. Dietary 20 g GS significantly increased (p < .05) the percentage of carcass yield %, dressing % and gizzard. However, the addition of 40 g/kg of GS significantly reduced the percentage of abdominal fat in the birds. Diets supplemented with GS showed the lowest content of ether extract compared with the control group (p < .05). The physical characteristics of meat and the chemical composition of DM, CP and ash were not significantly influenced by treatments. In the GS groups, plasma protein, albumin, globulin, aspartate aminotransferase and alanine aminotransferase concentrations showed no significant change compared with the control group. Broilers fed a diet supplemented with GS had lower levels of plasma glucose, total lipids, triglycerides and cholesterol compared with the control birds (p < .05). The addition of 40 g of GS significantly (p < .05) enhanced the activity of reduced glutathione, catalase, superoxide dismutase, glutathione peroxidase and GST, and correlated with significantly decreased thiobarbituric acid-reactive substances levels compared with the control group. The value of ileal pH was not significantly affected by the GS levels. Broilers fed diets supplemented with GS had lower ileal Streptococcus spp. and Escherichia coli populations but higher Lactobacillus spp. populations (p < .05). No adverse effects on birds' health were detected due to the use of GS. Thus, GS could be recommended as an herbal supplement in the diet of broiler chickens to improve performance, reduce blood lipids, enhance antioxidant capacity and decrease detrimental bacteria in the ileum.