[具体物质]对肉鸡生产性能、血液指标、免疫力、肠道微生物群和组织形态学的影响。注：原文中“of”后面缺少具体内容。

Impact of on Performance, Blood Markers, Immunity, Intestinal Microbiology and Histomorphology in Broiler Chicken.

作者信息

Banday Mohammad T, Wani Manzoor A, Othman Sarah I, Rudayni Hassan A, Allam Ahmed A, Alshahrani Mohammad Y, Ibrahim Essam H, Nabi Showkat, Adil Sheikh

机构信息

Division of Livestock Production and Management, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Shuhama 190006, India.

Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia.

出版信息

Vet Sci. 2024 Oct 1;11(10):463. doi: 10.3390/vetsci11100463.

DOI:10.3390/vetsci11100463

PMID:39453054

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11511407/

Abstract

The study investigated the impact of utilizing leaf powder (RNL) as a phytogenic feed additive on performance, blood markers, intestinal microbiology and histomorphology in broiler chicken. One hundred eighty day-old Cobb broiler chicks were randomly divided into four treatment groups having three replicates with fifteen birds each. Four iso-caloric and iso-nitrogenous diets primarily based on maize-soybean were formulated, viz., CN (Control)-fed basal diet only; RNL (basal diet + 2.5 g/kg RNL); RNL (basal diet + 5 g/kg RNL); and RNL (basal diet + 10 g/kg RNL). The results revealed a significant ( < 0.05) increase in body weight gain and feed conversion ratio in dietary treatments compared to CN with best values in RNL followed by RNL. The blood markers like glucose, total protein, creatinine, alanine transaminase (ALT) and aspartate transaminase (AST) showed no significance ( > 0.05) among all the treatments, however total cholesterol significantly ( < 0.05) decreased in RNL and RNL as against CN. Regarding immune parameters, immunoglobulin G (IgG) and immunoglobulin M (IgM) levels significantly ( < 0.05) enhanced in RNL and RNL. Antioxidant enzyme status showed that superoxide dismutase (SOD) increased and malondialdehyde (MDA) decreased significantly ( < 0.05) in RNL compared to CN. Gut health in terms of cecal microbiology and histomorphology of duodenum and jejunum were altered by inclusion of RNL in the broiler diet. A significant decrease ( < 0.05) in coliform count was recorded by incorporation of dietary treatments with highest reduction in RNL. count and total viable count did not vary significantly ( > 0.05) among dietary treatments and CN. Duodenal and jejunal villus height and villus height/crypt depth ratio were significantly ( < 0.05) increased in RNL and RNL compared to RNL and CN. Thus, it could be concluded that inclusion of leaf powder in the diet resulted in improved performance and better immuno-antioxidant status of broilers. Further, an improvement in the gut health was observed in terms of positive effects on cecal microbiota and intestinal histomorphology of broiler chickens.

摘要

本研究调查了利用叶粉（RNL）作为植物源饲料添加剂对肉鸡生产性能、血液指标、肠道微生物群和组织形态学的影响。180只1日龄的科宝肉鸡雏鸡被随机分为四个处理组，每组三个重复，每个重复15只鸡。配制了四种以玉米 - 大豆为主的等能量和等氮日粮，即：CN（对照组）仅饲喂基础日粮；RNL（基础日粮 + 2.5 g/kg RNL）；RNL（基础日粮 + 5 g/kg RNL）；以及RNL（基础日粮 + 10 g/kg RNL）。结果显示，与CN组相比，日粮处理组的体重增加和饲料转化率显著（<0.05）提高，其中RNL组效果最佳，其次是RNL组。葡萄糖、总蛋白、肌酐、丙氨酸转氨酶（ALT）和天冬氨酸转氨酶（AST）等血液指标在所有处理组之间无显著差异（>0.05），然而，与CN组相比，RNL组和RNL组的总胆固醇显著（<0.05）降低。关于免疫参数，RNL组和RNL组的免疫球蛋白G（IgG）和免疫球蛋白M（IgM）水平显著（<0.05）提高。抗氧化酶状态表明，与CN组相比，RNL组的超氧化物歧化酶（SOD）增加，丙二醛（MDA）显著（<0.05）降低。肉鸡日粮中添加RNL改变了盲肠微生物群以及十二指肠和空肠的组织形态学方面的肠道健康状况。日粮处理组中大肠菌群数量显著减少（<0.05），RNL组减少最多。日粮处理组与CN组之间的计数和总活菌数无显著差异（>0.05）。与RNL组和CN组相比，RNL组和RNL组的十二指肠和空肠绒毛高度以及绒毛高度/隐窝深度比值显著（<0.05）增加。因此，可以得出结论，日粮中添加叶粉可提高肉鸡的生产性能和免疫抗氧化状态。此外，在盲肠微生物群和肉鸡肠道组织形态学方面观察到对肠道健康有积极影响。