低能饲粮添加酶制剂和聚甘油脂肪酸酯对黄羽肉鸡生产性能、免疫器官发育、肠道发育及肠道微生物的影响  

Effects of Enzyme Preparation and Polyglcerol Fatty Acid Esters in Low-energy Diet on Production Performance,Immune Organ Development,Intestinal Development and Intestinal Microorganisms in Yellow-feather Broilers

作　　者：杨东林 田聪聪 王蕾 陈威 陈勇[1,2] YANG Donglin;TIAN Congcong;WANG Lei;CHEN Wei;CHEN Yong(College of Animal Science,Xinjiang Agricultural University,Urumqi,Xinjiang 830052;Xinjiang Herbivore Nutrition Laboratory for Meat and Milk,Urumqi,Xinjiang 830052)

机构地区：[1]新疆农业大学动物科学学院,新疆乌鲁木齐830052 [2]新疆肉乳用草食动物营养实验室,新疆乌鲁木齐830052

出　　处：《中国家禽》2022年第7期57-64,共8页China Poultry

基　　金：新疆维吾尔自治区高技术研究发展项目(201211104)。

摘　　要：试验旨在研究在玉米-豆粕型低能饲粮中添加酶制剂和聚甘油脂肪酸酯(PGEF)对黄羽肉鸡生长性能、屠宰性能、肉品质、免疫器官和肠道发育及肠道微生物的影响。选取240只1日龄雄性黄羽肉鸡随机分为4组,每个组10个重复,每个重复6只鸡。对照组饲喂低能饲粮,PGFE组在低能饲粮中添加0.1%PGFE,酶制剂组在低能饲粮中添加3.34 mL/kg酶制剂,复合组在低能饲粮中添加0.1%PGFE和3.34 mL/kg酶制剂,试验期为70 d。结果显示:在1~21日龄,酶制剂能极显著提高黄羽肉鸡21日龄体重和平均日增重(P<0.01),酶制剂和PGFE有交互作用(P<0.05),酶制剂能改善料重比(P<0.05)。酶制剂能显著增加黄羽肉鸡半净膛重(P<0.05),极显著增加宰后1 h肉色(P<0.01),显著增加宰后24 h pH(P<0.05),PGFE极显著增加宰后1 h肉色和宰后1 h pH(P<0.01),极显著降低黄羽肉鸡回肠体重校正长度(P<0.01)。添加酶制剂和PGFE后,对照组相比其他三组物种丰富度Chao1指数均有所升高,物种多样性Faith指数对照组明显低于其他三组(P<0.05),瑞士乳杆菌的相对丰度显著降低(P<0.05),其中复合组极显著低于对照组(P<0.01),PGFE组中敏捷乳杆菌相对丰度显著高于其他三组(P<0.05)。研究提示,在低能饲粮中添加酶制剂和PGFE能提高幼龄黄羽肉鸡生长性能,改善换黄羽肉鸡肉品质和肠道微生物区系。The purpose of this experiment was to study the effects of enzyme preparation and polyglcerol fatty acid esters(PGFE)in low-energy diet on growth performance,slaughtering performance,meat quality,immune organs,intestinal development and intestinal microorganisms in yellow-feather broilers.The experiment selected 2401-day-age male yellow broilers and divided into four groups randomly with 10 replicates in each group and 6 chickens in each replicate.The control group was fed with low-energy diet;PGFE group was fed with 0.1%PGFE added to low-energy feed;enzyme preparation group was fed with 3.34 mL/kg of enzyme preparation added to low-energy feed;and compound group was fed with 0.1%PGFE and 3.34 mL/kg of enzyme preparation added to low-energy diet for 70 days.The results showed that at 1 to 21 days of age,enzyme preparation could significantly increase 21-day-age body weight and average daily gain of yellow-feather broilers(P<0.01).There was interaction between enzyme preparation and PGFE(P<0.05),and enzyme preparation could improve feed/gain(P<0.05).Enzyme preparation could significantly increase the half-eviscerated weight(P<0.05),meat color increased significantly at 1 hour after slaughter(P<0.01),pH at 24 hours after slaughter was significantly increased(P<0.05).PGFE significantly increased meat color and 1 h pH at 1 h after slaughter(P<0.01),and decreased the corrected length of ileum weight(P<0.01).After adding enzyme preparation and PGFE,the species richness Chao1 index of the control group increased,the species diversity Faith index of the control group was significantly lower than that of the other three groups(P<0.05),and the relative abundance of Lactobacillus helveticus decreased significantly(P<0.05).The relative abundance of Lactobacillus helveticus in the compound group was significantly lower than that in the control group(P<0.01),and the relative abundance of Lactobacillus agile in PGFE group was significantly higher than that in the other three groups(P<0.05).It was suggested that the addition of

关 键 词：酶制剂 PGFE 黄羽肉鸡 生产性能 肠道微生物 

分 类 号：S831.5[农业科学—畜牧学]