检索结果-南通市图书馆

Clinical and Radiographic Evaluation of Cattle Tail before and after the <i>Vaquejada</i>Race

Open Journal of Veterinary Medicine 2021年第6期11卷 165-176页

作者： Raíssa Karolliny Salgueiro Cruz Maria Luiza Albuquerque Ribeiro Juliano Sarmento Macedo Brunno Aguiar Ferreira Marcelo Araújo Silva Anaemília das Neves Diniz Helena Emília Cavalcanti da Costa Cordeiro Manso Helio Cordeiro Manso Filho Professor of the Veterinary Medicine course Cesmac University Center (CESMAC) Maceió-AL Brazil Veterinarian and Member of the Association of Veterinarians of Equidae and Bovids of Alagoas (AMVEBAL) Maceió-AL Brazil Adjunct Professor at the Federal University of Alagoas Maceió-AL Brazil Equine Research Center Federal Rural University of Pernambuco Recife-PE Brazil

The vaquejada race is a sport with animals which has the greatest socio-economic impact in Brazil and is responsible for generating an intense cultural and economic movement. However, this activity has been the subject of questions about well-being involving the environmental and mental comfort conditions offered to equine and cattle interactions. It is necessary to perform technical evaluations of the cattle involved on the basis of scientific study to better understand the processes of sport and, with this, promote their evolution on good welfare practices in the 21st century. Therefore, to test the hypothesis that the use of the official rules of the vaquejada where cattle use a protective harness on the tail protects the cattle’s tail from injuries in this region that compromise health. Before, during and after races, a study was developed that aimed to perform a general and radiological clinical evaluation in the proximal coccygeal region in cattle that ran in a modern cattle stall. Forty male bovines were evaluated (average: 2 year-old and 420 kg). Oxen were subjected to clinical and radiological examination before and after racing with official rules. Results of the clinical and radiological evaluations performed by veterinarians, did not observe clinical occurrences before and after the races in the 40 cattle evaluated. The increase in heart and respiratory rates was a reflection of temporary management stressors, as the animals returned to the feeding/rumination/interaction pattern after running in the rest pen. The radiographic findings in the tail, represented by the reduction of the intervertebral space and areas of subcutaneous radiolucency, suggest technical artifacts derived from

关键词： zebu Physical Exercise Locomotor Health

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Serial Ultrasonographic Measurements to Estimate Age and Viability in <i>Bos indicus</i>Embryos

引用

Open Journal of Veterinary Medicine 2019年第7期9卷 91-99页

作者： Ana Lucia Malvaez Carlos Salvador Galina Ivette Gutierrez Manuel Corro Jose Luis Pablos Departamento de Reproducción Facultad de Medicina Veterinaria y Zootecnia Universidad Nacional Autónoma de México Ciudad Universitaria Ciudad de México México Centro de Enseñ anza Investigación y Extensión en Ganadería Tropical Facultad de Medicina Veterinaria y Zootecnia Universidad Nacional Autónoma de México Tlapacoyan Veracruz México Departamento de Genética y Bioestadística Facultad de Medicina Veterinaria y Zootecnia Universidad Nacional Autónoma de México Ciudad Universitaria Ciudad de México México

Early pregnancy diagnosis is a very important routine management to identify non-pregnant cows in order to keep an optimum reproductive efficiency both for dairy and beef cows. Ultrasound equipment allows estimating the viability and size of the embryo during early gestation. With the aim of assessing age and viability of Bos indicus embryos between 24 and 35 days of gestation, 55 cows were divided into 4 clusters. These clusters were conformed according to the first day that an echogenic structure was seen inside the embryonic vesicle (Group 1: day 24, Group 2: day 26, Group 3: day 27 and Group 4: day 28). The age of the embryos was estimated from the date of AI. Three progressive serial measurements of their length were made within 2 to 5 days. With a model GEE (Generalized Estimating Equations), the effect of days was evaluated to compare the second measurement with the first one and the former with the third observation. No differences in the size of the embryos were observed between the first evaluation (24 days) and the second (28 days) (P = 0.387). Also, simple linear regression analysis found a positive linear association between the size of the embryo and gestation days (R2 = 0.593) with an average growth of 0.078 cm per day (P = 0.001). In conclusion, the variation between measurements at a given time does not allow estimating with precision the exact day of gestation. Nonetheless, serial measurements are useful to estimate the healthy growth of the embryo from day 26 of gestation.

关键词： zebu Cattle Embryo Measurement Reproduction Tropics

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

基于硬件仿真系统的边缘计算人工智能视觉芯片设计验证

引用

物联网学报 2022年第1期6卷 20-28页

作者：徐宣哲宁珂郑学敏赵明心徐萌萌吴南健刘力源中国科学院半导体研究所半导体超晶格国家重点实验室北京100083 中国科学院大学材料与光电研究中心北京100049

基于卷积神经网络(CNN,convolutionalneuralnetwork)的视觉深度学习算法的兴起推动了人工智能视觉芯片设计研究的快速发展,而芯片的设计验证工作是人工智能视觉芯片研发的瓶颈。介绍了一种基于硬件仿真系统的人工智能视觉芯片软硬件验... 详细信息

基于卷积神经网络(CNN,convolutionalneuralnetwork)的视觉深度学习算法的兴起推动了人工智能视觉芯片设计研究的快速发展,而芯片的设计验证工作是人工智能视觉芯片研发的瓶颈。介绍了一种基于硬件仿真系统的人工智能视觉芯片软硬件验证方法,以边缘计算人工智能视觉芯片设计为例,在硬件仿真系统zebu上完成了芯片运行的典型深度学习网络MobileNet的仿真验证工作。结果表明,在硬件芯片架构上实现的网络模型在保证精确度的同时,在200 MHz频率时钟下单帧检测时间只需要18.51 ms,与软件平台仿真相比,仿真速度提高了7倍。

关键词：人工智能视觉芯片深度学习 MobileNet zebu

来源：

维普期刊数据库博看期刊

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：