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991.
992.
993.
赵春明 《畜牧兽医科技信息》2015,(2):40+45
<正>在畜牧生产中,幼畜的管理以及经营非常重要。在幼畜生长的时候,兽医必须对其整个生长的过程中进行把关,因为幼畜的各个器官和技能尚未发育完善,对疾病的抵御能力很差易患各种疾病,兽医的关注和治疗,可以减少幼畜的死亡率。幼畜是指一些新出生的家畜,常被村民们称为"幼崽",例如牛崽、羊崽等。这些幼畜的生长状况会因种类的不同而不同。有的幼畜生长迅速,有的幼畜生长则非常缓慢,但不管生长的快与慢,它们的 相似文献
994.
This experiment was conducted to study the effects of different levels of compound Chinese medicine on growth performance,nutrients apparent digestibility,immune function and slaughter performance of weaning Rex rabbits.70 healthy Rex rabbits at age of 60 days were divided into 7 groups with 5 replicates per group and 2 rabbits per replicate.Group Ⅰ was fed with basic diet as control group,group Ⅱ was fed the basal diet supplemented with antibiotic (contains 50 mg/kg milligrams bacitracin zinc,10 mg/kg colistin sulfate).The other five groups (Ⅲ,Ⅳ,Ⅴ,Ⅵ and Ⅶ) were fed the basal diet supplemented with 1%,2%,3%,4%,5% compound Chinese medicine,respectively.The pre-test period lasted for 7 days and the trial period lasted for 45 days.The results showed as follows:①The ADG in group Ⅳ was significantly higher than that in groups Ⅰ,Ⅱ and Ⅲ (P< 0.05),the F/G in group Ⅳ was significantly lower than that in other groups (P< 0.05).②The apparent digestibility of DM in group Ⅳ was significantly higher than that in groups Ⅰand Ⅱ (P< 0.05),the apparent digestibility of DM in group Ⅶ was significantly higher than that in group Ⅰ (P< 0.05).The apparent digestibility of CF in group Ⅳ was extremely significantly higher than that in group Ⅰ (P< 0.01),the apparent digestibility of CF in group Ⅶ was significantly higher than that in group Ⅰ (P< 0.05).The apparent digestibility of NDF in group Ⅳ was extremely significantly higher than that in group Ⅰ (P< 0.01),and significantly higher than that in groups Ⅱ,Ⅲ,Ⅴ and Ⅶ (P< 0.05).The apparent digestibility of ADF in group Ⅳ was significantly higher than that in groups Ⅰ,Ⅱ,Ⅴ and Ⅶ (P< 0.05).The apparent digestibility of CP in group Ⅳ was significantly higher than that in groups Ⅰ and Ⅱ (P< 0.05).③ There were no significant differences in the contents of IgG,IgA and IgM of serum among all groups (P> 0.05),the spleen index in group Ⅳ was significantly higher than that in groups Ⅰ,Ⅱ,Ⅲ and Ⅴ (P< 0.05).④There were no significant differences in the slaughter rate,half eviscerated slaughter rate and all eviscerated slaughter rate among all groups (P> 0.05).In summary,adding compound Chinese medicine and antibiotics in the feed both could improve the growth performance,nutrients apparent digestibility,immune function and slaughter performance of weaning Rex rabbits,and the appropriate compound Chinese medicine level in the diet of weaning Rex rabbits was 2%. 相似文献
995.
凝结芽孢杆菌对感染产气荚膜梭菌肉鸡生长性能、肠道病变及免疫器官指数的影响 总被引:1,自引:1,他引:0
本试验旨在研究日粮中添加凝结芽孢杆菌对感染产气荚膜梭菌肉鸡生长性能、肠道病变及免疫器官指数的影响。选用312只1日龄科宝500肉鸡公雏,随机分成4个处理,每个处理6个重复,每个重复13只鸡。采用2×2双因子完全随机设计,产气荚膜梭菌分为无感染产气荚膜梭菌组和感染产气荚膜梭菌组,日粮中凝结芽孢杆菌水平分别为0和400mg/kg。试验期35d。结果表明,感染产气荚膜梭菌后15~35日龄肉鸡平均日增重显著降低(P0.05),28日龄肠道病变严重(P0.01),35日龄法氏囊指数极显著降低(P0.01);日粮中添加凝结芽孢杆菌可显著提高15~35日龄肉鸡平均日增重(P0.05),显著降低料重比(P0.05),能缓解感染导致的肠道损伤(P0.05),28日龄肉鸡胸腺指数极显著提高(P0.01),35日龄法氏囊指数极显著提高(P0.01)。肠道病变结果分析表明,日粮中添加凝结芽孢杆菌与感染产气荚膜梭菌有显著交互作用(P0.05)。综上所述,日粮中添加凝结芽孢杆菌能够提高感染产气荚膜梭菌肉鸡生长性能及免疫器官指数,增强动物免疫能力,并能缓解由于产气荚膜梭菌感染而导致的不利影响。 相似文献
996.
JI Xiang-bo YAO Guo-jia LIU Jian CHEN Li-dun LI Xin-zheng YANG Jian-ping ZANG Yan-quan 《中国畜牧兽医》2015,42(10):2669-2675
This experiment was conducted to investigate the effect of soybean meal replaced by brewer's grain (BSG) or fermented brewer's grain (FBSG) on growth performance,immune organ index and intestinal flora of meat geese.A total of 250 geese at 28 days of age were randomly assigned to 5 groups with 5 replicates per group and 10 geese per replicate.The geese in control group were fed a basal diet (with soybean);The geese in groups 1 and 2 were fed the basal diet with the 10% and 20% BSG replacing the soybean,respectively;The geese in groups 3 and 4 were fed the basal diet with the 10% and 20% FBSG replacing the soybean,respectively.The whole experiment period was 42 days,including three phases:15 d (early stage),14 d (middle stage) and 14 d (later stage).The results showed as follows:①From the whole experiment period,compared with control group,the ADG of geese in group 1 was significantly increased (P<0.05),the ADG and ADFI of geese in group 4 were significantly decreased (P<0.05),there were no obvious change in growth performance of geese in groups 2 and 3 (P>0.05).② Compared with control group,the thymus index and spleen index of geese in groups 1,2 and 3 were extremely significantly increased at early stage (P<0.01);At middle and later stages,the spleen index of geese in group 2 were significantly and extremely significantly increased (P<0.05;P<0.01);There were no significant differences in bursa of fabricius index of geese among all groups (P>0.05).③ Compared with control group,the number of Escherichia coli and Salmonella in cecum in groups 1 and 2 were extremely significantly decreased at early and later stages (P<0.01),while the number of Bifidobacteria and Lactobacillus were increased in different degrees;the number of Bifidobacteria and Lactobacillus in cecum in groups 3 and 4 were extremely significantly increased at later stage (P<0.01).In conclusion,10% BSG replacing soybean in the basal diet could improve the growth performance and intestinal flora of meat geese;10% FBSG replacing soybean in the basal diet could promote the growth of beneficial bacteria of meat geese,but had no effect on growth performance;While 20% replacing soybean in the basal diet could decrease the feed intake and weight gain of meat geese,hinder its growth and development. 相似文献
997.
To determine the apparent digestibility of cassava residue (CR) nutrient and the effects of CR on growth performance when replaced the different levels corn in diet,two experiments were designed.In the first experiment,8 Duroc×Landrace×Yorkshire crossbred barrow pigs with the similar weight (22.46 kg±1.08 kg) were chosen for determining the apparent digestibility of CR.The pre-test period lasted for 10 days,and the trial period lasted for 5 days.In the second experiment,160 Duroc×Landrace×Yorkshire crossbred pigs with the similar weight(21.09 kg±0.72 kg) were randomly divided into five groups with four replicates per group and eight pigs per replicate.The control group was fed with basal diet while the experimental groups were fed diets containing 5%,10%,15% and 20% levels of substitution of corn by CR,respectively.The pre-test period lasted for 5 days,and the trial period lasted for 30 days.The results showed that the content of CP and EE in CR were 2.73% and 0.68%,but CF and total energy were 15.34% and 13.55 MJ/kg.The content of Lys and Thr were 0.11% and 0.08%,respectively.Calcium and phosphorus apparent digestibility were low,just only 40.24% and 34.76%,respectively,while apparent total energy digestibility was 65.62%.The apparent digestibility of Arg,Glu,Tyr,Met,Leu and Val were higher than 80%.The average daily gain was reduced with increasing dose of CR,which the group of 15% and 20% addition were significantly lower than that of control group (P< 0.05).However,the average daily gain of 5% and 10% groups were no significant difference with the control group(P >0.05).The feed cost of 5% and 10% addition groups were decreased by 0.01 and 0.05 yuan.In conclusion,under this experimental condition,the appropriate addition of CR for growing-fishing pig (20 to 50 kg ) was 5% to 10% in the diet. 相似文献
998.
以意大利蜜蜂和蜜蜂球囊菌为主要试验材料,通过记录外界温湿度、幼虫脾的温湿度、蜂群的储蜜量和储粉量以及发病幼虫数,研究养蜂生产中白垩病发病时上述指标的变化趋势,并进行了相关性分析;以桧木、喜久二醇、黄藤碱和蛇床四种中草药制剂以及蜜蜂球囊菌为主要的试验材料,研究实验室条件下这四种中草药制剂对蜜蜂球囊菌生长的抑制作用。结果显示:试验组内,外界湿度、幼虫脾温度、储蜜量与发病幼虫数之间的相关性显著;对照组内,外界湿度与发病幼虫数之间的相关性显著;在6.5%、5.0%、3.5%、2.0%和0.5%5个浓度的药剂溶液中,喜久二醇、黄藤碱、蛇床3种中草药制剂对蜜蜂球囊菌没有抑制作用;而桧木在5.0%的溶液浓度上表现出一定的抑菌作用。结果表明,蜜蜂白垩病的发病与食物储蜜量、外界湿度和幼虫脾温度有关,而蜂群的食物储备量是导致白垩病发生的关键诱发因素;桧木中草药制剂对蜜蜂球囊菌的生长有一定的抑制作用。 相似文献
999.
果业在青岛市城阳区休闲观光农业中的地位与作用 总被引:1,自引:0,他引:1
休闲观光农业作为新兴的行业,既能促进传统农业向现代农业转型,又为解决"三农"问题提供了新的思路。山东省青岛市城阳区依托区位优势,以现代农业园区为载体,大力发展以果业为主体的休闲观光农业,走出了一条城郊都市农业发展新路子。城阳区休闲观光农业的成功经验,或许对其他地方有一定的启发作用。 相似文献
1000.
<正>本刊讯(特约通讯员陈世平)3月28日,以"漫步云霄、品花尝果"为主题的2015云霄枇杷采摘季开摘活动在云霄县和平乡拉开序幕。开幕式上,举行了"全国绿色食品原料(枇杷)标准化生产基地"授牌仪式、枇杷产销合作签约仪式。开摘活动当天还开展了亲子家庭采摘比赛、枇杷系列产品展示展销,并将陆续开展云霄枇杷之最评选、枇杷娃卡通形象设计征集比赛、田园风光 相似文献