中西医结合治疗猪气喘病

猪气喘病又称猪地方性肺炎、猪霉形体肺炎,是南猪霉形体引起猪的一种慢性呼吸道接触性传染病,临床特征为咳嗽、气喘;病变特征是肺的尖叶、心叶、中间叶和膈叶前缘呈“肉样”或“虾肉样”实变。     

中西医结合治疗牛便血

中兽医认为牛便血是由于天气炎热．剧烈劳役,久渴失饮,或喂霉烂饲料、热性饲料或饮以浊水,使热毒郁结肠胃,迫血妄行,遂成便血（实热型）;或由于长期饲管不良,引起脾虚,则睥虚不能统摄血液,引起便血（脾虚型）。     

中西结合治疗水貂黄脂肪病

水貂黄脂肪病主要是由于水貂采食了变质的肉、鱼等动物性饲料引起的一种脂肪代谢障碍病,以全身脂肪组织发炎、渗出、黄染、肝小叶出血性坏死、肾脂肪变性为特征。本病能引起水貂大批死亡,在繁殖季节可导致母貂发情不正常、不孕、流产、产后无乳,公貂利用率低、配种能力差。     

中西结合治疗仔猪博卡病毒病

<正>博卡病毒属细小病毒科博卡病毒属,其基因组大小为5.2 kb左右,为无囊膜单股线状DNA病毒。博卡病毒属成员包括牛博卡病毒、人博卡病毒(1~4型)、犬博卡病毒和猪博卡病毒4种。猪博卡病毒病主要经呼吸道感染,其传播迅速,常引发混合感染,病猪发病快,死亡率高。1临床症状     

中西医结合治疗天祝白牦牛犊牛腹泻

犊牛消化不良主要症状是由于消化机能紊乱所引起的一种以腹泻为主症的犊牛疾病,为犊牛常发病之一,多发生在出生后1～25日龄。可造成犊牛生长缓慢,体质下降,抵抗力下降,不及时治疗将会引起死亡,给农牧民造成严重的经济损失。据对天祝白牦牛犊牛腹泻病的调查,初生牦犊牛平均发病率较高,约占21.6%,死亡率9.8%。     

肟菌·戊唑醇等化学药剂对水稻主要病害的防效试验

稻纹枯病、稻瘟病、稻曲病是浙江安吉水稻生产上的三大病害,严重影响水稻产量和品质.防治稻纹枯病、稻曲病传统用药以井冈霉素、三唑类药剂为主,防治稻瘟病传统用药以三环唑、稻瘟灵为主,由于防治的时期和药剂不同,稻瘟病与纹枯病、稻曲病难以结合防治,而且由于长期施用这些传统药剂,已出现防效明显下降现象.     

专家“坐镇” 热线升温

<正>提起12316金农热线,映入脑海的关键词很多,其中有一个词不得不提,那就是"专业的团队"。金农热线成立之初,便有专家"坐镇"。尽管最初只有不到10位专家,但从周一到周日,粮油、蔬菜、果树、土肥、植保、养殖,每天都有专家坐席。每天在专家坐席的时间里,电话一个接一个地响个不停,常常是这个问题刚解答完,另一个电话又打入进来。不少农民为了得到专家的亲自指导,宁愿在     

Cloning and sequence analysis of nine novel MYB genes in Taxodiaceae plants

Myeloblastosis(MYB) is one of the largest transcribed factor families in plants. To gain an overall picture of the evolution of MYB genes in relict plants, we cloned nine novel MYB genes in Taxodiaceae plants(Taxodium distichum, Taxodium ascendens, Cryptomeria japonica var. Sinensis, Cryptomeria japonica cv. Araucarioides, Cryptomer Japonica, Metasequoia glyptostroboides, Cunninghamia lanceolata, Taiwania cryptomerioides and Glyptostrobus pensilis). The deduced amino acid sequences for MYBs showed that the nine MYB proteins contained two DNA binding domains. The first domain is from amino acid position 29 to 78, wherein three tryptophanes at 33, 53 and 73 were separated by 19 amino acids, respectively. The second domain is from amino acid position 82 to 127, wherein three tryptophanes at 86, 105 and 124 were separated by 18 amino acids, respectively, whereas the first tryptophane at amino acid position 86 is replaced by a phenylalanine. The characterization of these conserved domains at nine MYBs indicated that they all belong to the R2R3-MYB group. The secondary structure analysis showed that α-helix and β-turn are the major motifs of the predicted secondary structure of MYBs. The three dimensional model of each MYB protein showed that the structure is like clip, making it more flexible and mobile. The similarities between the nine MYB proteins in Taxodiaceae were calculated. The highest identical value of 99% is between CjsMYB, CjMYB and CjaMYB, whereas the lowest value of 82% is between TaMYB and ClMYB. According to the phylogenetic tree, the distances between different genera were relatively large whereas those within genera were relatively small. As expected, accessions of the same genus formed a subgroup before being grouped with other genera.     

TCP植物蒸腾抑制剂

<正>TCP植物蒸腾抑制剂是山西省林业科学研究院研制的成果,该制剂通过缩小植物气孔开张度来抑制蒸腾,减少植物水分散失。同时增加叶绿素含量,促进根系生长,提高抗旱抗寒能力,提高造林绿化成活率。选择无风、晴朗的早晨或傍晚,将本药剂稀释后均匀喷施于叶面、枝干(滴水为度),连续喷施3次,间隔期为10 d~15 d.     

稳定性肥料添加剂NAM在加工番茄上的应用

<正>稳定性肥料添加剂NAM是由脲酶抑制剂、硝化抑制剂及磷素活化剂联合构成的复合型添加剂。脲酶抑制剂和硝化抑制剂的组合使用可对氮素在土壤中的转化进行全过程调节,既抑制氨挥发损失,又抑制铵态氮向硝态氮的转化,延长铵态氮的存留时间,减少转化成硝态氮后的淋溶以及进一步的反硝化损失。磷素活化剂可活化释放土壤中的磷,减少肥料磷