Effect of Different Rearing Conditions of Indoor and Outdoor in Winter and Summer on Growth Performance and Immune Function of Heijiao MA Chicken

This experiment was conducted to study the effect of different rearing conditions of indoor and outdoor in winter and summer on growth performance and immune function of Heijiao MA chicken.In the winter and summer, 180 Heijiao MA chicken with the age of 35-day-old were chosen and randomly divided into two groups with three replicates per group and 30 chickens per replicate.The Heijiao MA chicken were reared at outdoor and indoor, respectively, and at 49, 63, 77, 91 days the immune organ indexes, serum antibody titers and growth performance were measured.The results showed that:①Whether it was winter or summer, the body weight of Heijiao MA chicken rearing at indoor were higher than that of outdoor, and the difference was significant at experimental stages in winter (P<0.05).There was significant difference only at 77 days old of Heijiao MA chicken in summer (P<0.05), the rest were not significant (P>0.05);②The ADG of outdoor group in summer was higher than that in winter, while the F/G of outdoor group in summer were significantly lower than that in winter (P<0.05).The ADFI and ADG of indoor group were not significantly different between winter and summer (P>0.05).③On immune function, immune organ indexes and ND antibody titer of Heijiao MA chicken of indoor group in winter were higher than outdoor group, while part of immune organ indexes, AI (H5) and ND antibody titers of outdoor group in summer were higher than that of indoor group;And ND and AI (H5) antibody titers in winter were higher than summer.In conclusion, The climate and season were major factors to influence the growth performance and immune function of Heijiao MA chicken.     

复合维生素对林下养殖模式下清远麻鸡肌肉品质与谷氨酸、肌苷酸及肌内脂肪含量的影响

试验旨在探究复合维生素对林下养殖模式下清远麻鸡肌肉品质与谷氨酸、肌苷酸及肌内脂肪等风味物质含量的影响。选用初始体重相近的60日龄清远麻鸡400只,随机分为实验组和对照组,每组5个重复,每个重复40只鸡。处理组在饮水中添加0.01%的复合维生素,各组鸡只放养在桉树林下,试验为期100 d。结果表明:①复合维生素显著提高了清远麻鸡120～160日龄时体重(P0.001);②添加复合维生素显著提高试鸡宰后45 min、宰后24 h胸肌的L*值(P0.05),降低b*值(P0.05),并降低胸肌的滴水损失与剪切力(P0.05);③复合维生素增加清远麻鸡胸肌中谷氨酸、肌苷酸及降低肌内脂肪的含量(P0.05)。添加复合维生素可显著提高林下养殖模式下清远麻鸡的体重,改善肉品质,并增加胸肌中谷氨酸、肌苷酸及肌内脂肪等风味物质的含量,从而改善肌肉风味。     

发酵豆渣饲喂散养青脚麻鸡的效果试验

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糯玉米优质高效栽培技术

随着人民生活水平的提高．鲜食糯玉米受到越来越多市民的喜爱。安徽省新审定的优质糯玉米新品种正糯8号、宿糯1号在安徽省淮北及江淮各地种植，     

沃柑次果、落果发酵饲料对富凤麻鸡养分表观消化率、生长性能及肉品质的影响

试验旨在研究沃柑次果、落果发酵饲料替代部分日粮对富凤麻鸡养分表观消化率、生长性能、屠宰性能和肉品质的影响。试验选取240羽80日龄的健康富凤麻鸡随机分为4组，每组3个重复，每个重复20羽鸡。对照组鸡饲喂基础日粮，试验1组、试验2组、试验3组分别使用10%、20%、30%沃柑次果、落果发酵饲料替代基础日粮。预试期10 d，正式试验期40 d。结果显示：与对照组相比，各试验组富凤麻鸡对干物质、蛋白质、粗脂肪、钙的表观消化率均显著提高（P<0.05）。与对照组相比，试验2组富凤麻鸡平均日增重显著提高（P<0.05），料重比显著降低（P<0.05）。与对照组相比，试验2组富凤麻鸡胸肌红度提高了14.99%(P<0.05)；各试验组富凤麻鸡胸肌黄度分别提高了4.69%、6.40%、3.84%(P<0.05)。研究表明，沃柑次果、落果发酵饲料替代部分日粮对富凤麻鸡养分表观消化率、生长性能和肉品质均具有一定程度的改善作用，且最适替代量为20%。     

一例青脚麻鸡绦虫感染的防治

青脚麻鸡是近些年引进的生长快，适应性强，肉质细嫩，营养价值高的肉用鸡。商品化青脚麻鸡的饲养管理基本等同于肉鸡，一般75天可出栏。2013年，某县一养殖户饲养7000只青脚麻鸡，50日龄时发现有绦虫感染，现将诊疗情况报道如下。     

养肉鸡致富选维扬麻鸡

维扬麻鸡是江苏省家禽科学研究所家禽育种中心以苏北地区地方草鸡为素材选育的三系配套优质型肉鸡．2004年通过江苏省畜禽品种委员会审定、该品种具有抗病力强、耗料少、早熟易肥、肉嫩味鲜、鸡蛋品质优等特点、     

青脚麻鸡、肉杂鸡和本地土鸡在灌木草丛生态条件下的放养试验

近年来,成县放养鸡数量逐年增大,放养品种也较多。主要有青脚麻鸡、肉杂鸡和本地土鸡,这三个品种在成县丘陵山地生态鸡放养中极具代表性。试验旨在通过对青脚麻鸡、肉杂鸡和本地土鸡在灌木草丛生态条件下的适应性观察和生长效果测定,为该生态条件下选择最优放养品种提供科学依据。     

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淮北是一座因煤而兴、缘煤而建的资源型城市,产业升级和城市转型的任务十分繁重而紧迫。近年来,全市因地制宜,多措并举,依托农业产业化,加快发展食品工业,为保增长、调结构、促转型提供了有力支撑。