共查询到20条相似文献,搜索用时 62 毫秒
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随着私家车的逐渐增多,带犬外出旅游、兜风的人也多了。想带爱犬外出,就应该做好犬乘车前的各种准备,并注意一些问题。一、细心准备各种乘车用具乘车时如果你的犬不能老实地待着,总是这儿跑那儿窜的,不但会影响司机开车,还有可能引发各种危险。解决这个问题,你可以给爱犬做一个 相似文献
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要求犬主要对犬充满爱心、耐心,懂得犬的行为语言,最重要的是要讲原则。犬是活生生具有独立意识的,有时还是相当固执的动物。同一个犬种,甚至同一窝犬中每一头都是独立的个体,这就要求犬主能够了解并适应它们。 相似文献
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S. Jeyakumar Arun Kumar DeA. Kundu Kuntola RoyJai Sunder M.S. KunduM. Balakrishnan Subhash ChandS.K. Zamir Ahmed 《Livestock Science》2013,152(1):79-87
Assessing the health of the testes in domestic animals is an important aspect of the breeding soundness examination and selection. The aim of the present study was to develop a simple method for scanning and to establish ultrasonographically the gross anatomic structures of the goat testes. Six adult male goats were examined to study the sonographic appearance of normal testes and epididymides using a water bath based ultrasound scanning technique. The ultrasonographic examinations were done using a 5–9 MHz/60 mm (7.5 MHz) linear-array transducer and a B-mode scanner. The ultrasonographic examination was performed in goats after standardizing the procedure on six testes collected from slaughter house. Results showed that in live goats when the probe was placed directly over the scrotum it gave distorted and unclear image. In water bath method the entire scrotum was dipped into a container filled with water and linear probe was used to observe the sonographic features of the testis. Each testis was viewed vertically, resulting in longitudinal image which was frozen, measured and printed through a thermal printer. The results of the ultrasonogram revealed that the testicular parenchyma was homogenous and moderately echogenic throughout. The diameter (mean±se) of the right and left testes was 4.47±0.14 and 4.42±0.07 cm respectively and no significant difference was observed between the testes. The mediastinum testis was a 1.50±0.22 cm wide linear structure of greater echogenicity than the testicular parenchyma when viewed in the transverse plane and nearly circular echogenic “spot” in the midline of the testis when viewed horizontally. The head and tail of the epididymides were easily identified on all the testes, but the epididymal body and ductus deferens were difficult to identify consistently. The tail of the epididymis was easily identified on the distal end of the testis with sonolucent tubules and appeared sonographically as a ‘peaked cap’ upon the testicular parenchyma. The diameter (mean±se) of the tail of right and left epididymis was 2.11±0.18 and 1.92±0.06 cm and no significant difference was observed between epididymides. The vascular pampiniform plexus (1.42±0.18 cm) was easily identified on the proximal end of the testes. The tunics of the testes appeared as a bright echogenic line. Inter-testicular septum appeared between testes as a hyperechoic line. It is concluded that ultrasonography permits a noninvasive evaluation of the internal structure of the scrotum and testes and water bath based sonographic examination may prove to be a valuable simple diagnostic methodology for evaluating physiopathologic conditions of goat testes and can be employed as a routine investigative method during breeding soundness and clinical examination. 相似文献
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第一个阶段:幼犬在群体生活时期.此阶段的重点应放在培训犬衔取的兴奋性和积极性.应抓住犬的模仿行为和学习行为,以及喜爱追逐游戏的特点进行训练.…… 相似文献
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