全文获取类型
收费全文 | 263篇 |
免费 | 7篇 |
国内免费 | 15篇 |
专业分类
农学 | 4篇 |
基础科学 | 1篇 |
5篇 | |
综合类 | 42篇 |
畜牧兽医 | 233篇 |
出版年
2022年 | 5篇 |
2021年 | 10篇 |
2020年 | 8篇 |
2019年 | 12篇 |
2018年 | 4篇 |
2017年 | 13篇 |
2016年 | 12篇 |
2015年 | 12篇 |
2014年 | 18篇 |
2013年 | 23篇 |
2012年 | 25篇 |
2011年 | 26篇 |
2010年 | 15篇 |
2009年 | 10篇 |
2008年 | 7篇 |
2007年 | 17篇 |
2006年 | 11篇 |
2005年 | 3篇 |
2004年 | 1篇 |
2003年 | 5篇 |
2002年 | 4篇 |
2001年 | 3篇 |
2000年 | 1篇 |
1999年 | 1篇 |
1997年 | 1篇 |
1996年 | 2篇 |
1995年 | 3篇 |
1994年 | 1篇 |
1993年 | 3篇 |
1992年 | 5篇 |
1991年 | 3篇 |
1990年 | 3篇 |
1989年 | 1篇 |
1988年 | 2篇 |
1986年 | 2篇 |
1984年 | 1篇 |
1980年 | 4篇 |
1979年 | 1篇 |
1978年 | 4篇 |
1976年 | 1篇 |
1975年 | 1篇 |
1956年 | 1篇 |
排序方式: 共有285条查询结果,搜索用时 15 毫秒
1.
以水貂阿留申病病毒对流免疫电泳(CIEP)细胞抗原为材料,经酶印迹(Westemblotting)测定,水貂阿留申病病毒CIEI细胞抗原与多克隆阳性血清反应,分子量为60000,50000和25000,而与CIEP阴性的抗水貂阿留申病病毒的单克隆抗体(Y—2—9)反应,分子量为60000,50000.因此初步确定水貂阿留申病病毒CIEP细胞抗原决定族位于分子25000蛋白上. 相似文献
2.
3.
针对水貂饲喂环节劳动强度大、环境差,水貂饲喂机械化水平不高的问题,设计了一种水貂养殖轨道式双排自动饲喂车,该饲喂车主要包括控制系统、行走系统、输料饲喂系统、饲喂支撑架收展系统。详细分析了饲喂过程中控制系统的控制要求,研究了控制实现方法和动作过程,通过光电传感器与PLC准确控制所有电机的工作状态定位转换,实现饲喂电机工作参数的人机交互调整;设计了导向轮定轨结构,优化缩短了饲料输送管路;模仿人工饲喂时手与手臂的动作形式,设计了自动饲喂投食结构,并进行了机构运动学分析,确定了具体结构及运动参数;设计了饲喂车收展结构,并通过作业条件分析确定了结构参数。样机试验结果表明,自动饲喂车以0.6 m/s速度行进,以预设的200、400、600 g为投喂量,饲喂车实际投喂质量变化范围分别为165~210 g、355~427 g、567~622 g,饲料堆放质量变异系数分别为6.53%、3.78%、2.74%,漏喂率均为0%,满足实际饲喂要求。该自动饲喂车提高了饲喂效率,节约了劳动成本,增加了饲喂车载料量。 相似文献
4.
TONG Ming-wei YI Li YANG Yong CHENG Yue-ning WANG Jian-ke ZHAO Hang LIN Peng CHENG Shi-peng 《中国畜牧兽医》2015,42(8):1917-1924
The present study was aimed to explore the potential role of Toll-like receptors (TLRs) on the mink immunity, and accumulate alternative genetic material for the mink breeding for disease-resistant.Four pairs of primers were designed according to ferret TLR sequences in GenBank to obtain the sequences of TLR genes (TLR4, TLR6, TLR7 and TLR8) of mink and then performed bioinformatics analysis of these sequences.In addition, the expression of TLR4 and TLR7 genes in various tissues in young and adult minks were analyzed by RT-PCR. Sequence homology analysis showed that mink had higher homology with carnivora (ferrets, polar bear, panda, walrus, seals, dog, tiger and cat) which had the nearest perimeter in the phylogenetic tree.Tissue expression analysis showed that TLR4 and TLR7 were widely and differently expressed in variety tissues of mink.Interestingly, the expression of TLR4 and TLR7 in young mink were much higher than that in adult mink. 相似文献
5.
Amir Atabak Ronaghinia Nanett Kvist Nikolaisen Stine Green Hansen Helle Harding Poulsen Henrik Lauritz Frandsen Tina Struve Pierre‐Louis Toutain Peter Damborg 《Journal of veterinary pharmacology and therapeutics》2021,44(1):93-106
Antimicrobial agents are used extensively off‐label in mink, as almost no agents are registered for this animal species. Pharmacokinetic (PK) and pharmacodynamic (PD) data are required to determine antimicrobial dosages specifically targeting mink bacterial pathogens. The aims of this study were to assess, in a PKPD framework, the empirical dosage regimen for a combination of trimethoprim (TMP) and sulfadiazine (SDZ) in mink, and secondarily to produce data for future setting of clinical breakpoints. TMP and SDZ PK parameters were obtained experimentally in 22 minks following IV or oral administration of TMP/SDZ (30 mg/kg, i.e. 5 mg/kg TMP and 25 mg/kg SDZ). fAUC/MIC with a target value of 24 hr was selected as the PKPD index predictive of TMP/SDZ efficacy. Using a modeling approach, PKPD cutoffs for TMP and SDZ were determined as 0.062 and 16 mg/L, respectively. By incorporating an anticipated potentiation effect of SDZ on TMP against Escherichia coli and Staphylococcus delphini, the PKPD cutoff of TMP was revised to 0.312 mg/L, which is above the tentative epidemiological cutoffs (TECOFF) for these species. The current empirical TMP/SDZ dosage regimen (30 mg/kg, PO, once daily) therefore appears adequate for treatment of wild‐type E. coli and S. delphini infections in mink. 相似文献
6.
The relationship between some skin characteristics and hemoglobin values during the growth period were statistically examined in standard male minks. Significant correlations) (P < 0.05–0.001) were found between the hemoglobin concentrations determined at 3 points during the growth period (in July, August and November) and the density and colour of underfur, and skin length, respectively. According to the study even the early hemoglobin values in July and August have a significant influence on the size and quality of the pelt. Mink kits with low hemoglobin values are liable to develop a winter fur coat with defective pigmentation and hair structure of the underfur. Anemic minks develop the most extreme stage of the pigmentation defect and these so-called cotton fur skins have little value in the fur garment industry. When these abnormal hemoglobin values are recognized at an early stage, cotton fur skins may be avoided, and larger skins of better quality may be produced. 相似文献
7.
8.
针对近年来养殖界在鹿、貂、狐、貉等特种经济动物的管理体制和执法上产生的争议,较系统地阐述了野生动物和家畜(禽)的区别,野生动物驯养繁殖与养殖业的关系等有关学术概念,并对生产技术成熟,已形成各自独立产业的鹿、狐、貂等特种经济动物在管理体制上存在的问题,提出了按照《畜牧法》和相关畜牧兽医法律法规进行管理的合理化建议。 相似文献
9.
介绍了金州黑色标准水貂这一品种的培育过程和优良特性 ,阐述了该水貂新品种对推动中国水貂养殖行业的发展将起到很大的作用 相似文献
10.