玉米皮对14~35日龄北京鸭生长性能、肠道组织形态及盲肠短链脂肪酸的影响  

Effects of Corn Bran on Growth Performance,Intestinal Morphology and Cecal Short-chain Fatty Acids of Pekin Ducks Aged 14 to 35 days

作　　者：季湛卿 郝永胜 薛又嘉 王雨彤 张博 唐静[1] 侯水生[1] 谢明[1] JI Zhanqing;HAO Yongsheng;XUE Youjia;WANG Yutong;ZHANG Bo;TANG Jing;HOU Shuisheng;XIE Ming(Institute of Animal Sciences,Chinese Academy of Agricultural Sciences,Beijing 100193;College of Animal Science and Technology,Hebei Normal University of Science and Technology,Qinhuangdao,Hebei 066600)

机构地区：[1]中国农业科学院北京畜牧兽医研究所,北京100193 [2]河北科技师范学院动物科技学院,河北秦皇岛066600

出　　处：《中国家禽》2023年第9期69-73,共5页China Poultry

基　　金：国家水禽产业技术体系建设专项(CARS-42-12);中国农业科学院科技创新工程重大科研任务(CAAS-ZDRW202104)。

摘　　要：为研究玉米皮对14~35日龄北京鸭生长性能、肠道组织形态及盲肠短链脂肪酸的影响,试验选取72只14日龄同一品系健康的雄性Z型北京鸭,依据每个处理每个重复初始体重基本一致的原则随机分成2组,每组6个重复,每个重复6只。对照组饲喂玉米-豆粕型基础日粮,试验组在基础日粮中添加6%玉米皮(总膳食纤维水平为15.25%)。试验期为21 d。结果显示:与对照组相比,玉米皮对北京鸭生长性能无显著影响(P>0.05),试验组空肠、盲肠的绒毛高度和绒毛宽度显著提高(P<0.05),回肠和盲肠的隐窝深度显著降低(P<0.05),肠道的绒隐比显著提高(P<0.05);试验组盲肠中丁酸含量显著提高(P<0.05)。综上所述,在饲粮总膳食纤维水平为15.25%的条件下,饲粮添加6%玉米皮提高了北京鸭盲肠中丁酸含量,改善了肠道组织形态,促进了北京鸭的肠道发育。In order to study the effects of corn bran addition on the growth performance,intestinal tissue morphology and cecum short-chain fatty acids of Pekin ducks from 14 to 35 days of age,a total of 7214-day-age male Z-type Pekin ducks of the same strain were randomly divided into two groups according to the principle that the initial weight of each treatment was basically the same,with 6 replicates in each group and 6 ducks per replicate.The control group was fed a corn-soybean meal basal diet,and the experimental group added 6%corn bran to the basic feed(total dietary fiber level was 15.25%).The experiment lasted for 21 days.The results showed as follows:Compared with the control group,corn bran supplementation had no significant effect on the growth performance of Pekin ducks(P>0.05);The villus height and villus width of jejunum and cecum were significantly increased in the experimental group(P<0.05),the crypt depth of ileum and cecum were significantly decreased(P<0.05),and the villus height-to-crypt depth ratio of duodenum,jejunum,lieum and cecum were significantly increased(P<0.05);The content of butyric acid in the cecum in the experimental group was significantly increased(P<0.05).It′s suggested that under the condition that the total dietary fiber level was 15.25%,dietary supplemention of 6%corn bran could increase the content of butyric acid in cecum,improve the intestinal tissue morphology,and promote the intestinal development of Pekin ducks.

关 键 词：北京鸭 玉米皮 生长性能 肠道组织形态 短链脂肪酸 

分 类 号：S834.81[农业科学—畜牧学]