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<正>我们利用犬进行搜索类作业时,主要涉及立体空间搜索和平面场地搜索两个场景类型。为了快速锁定搜索目标,就要求犬在训练时建立牢固的搜索形式,以有效提高犬搜索精准率,避免漏搜,缩短作业时间,节约犬的体力,提高搜索效能。本文主要探讨犬在平面场地搜索训练中,培养良好的搜索形式的有效方法,以期提高犬在平面场地搜索时的作业效率。 相似文献
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<正>一、带犬民警与警犬作业时应注意的环节带犬民警是犬的复杂综合刺激者,犬的作业情况最终都要由带犬民警来分析判断得出结果。在使用警犬安全检查时,带犬民警一定将犬的搜索兴奋性调节到最佳状态,这是使用搜爆犬成败的关键。搜爆犬必须要具有切实的作业能力,表现搜查仔细、兴奋、持久,反应灵敏,表示果断。在搜索过程中,犬受到诱导或不认真作业时,不可刺激犬,可下"搜"的口令催促犬搜索。如犬仍不认真作业,可停止让其休息,重新调整兴奋性后再进行。每一次搜索都要让犬成功,以增强犬的自信心和 相似文献
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一、培养程序
培养警犬搜索能力的程序,按照从易到难、从先到后的训练过程.主要包括:培养犬对毒品、爆炸物、人体血迹等搜索目标物的气味建立兴奋性条件反射,简称建立气味联系;培养犬以"坐""卧""扒""吠叫"等方式向训导员示意的示警能力;在一定作业形式下,例如箱包、房间、山林、传送带、人体携带等,形成寻找、发现搜索目标物的持久作业能力和提升准确性;在复杂环境中的实战能力.在训练过程中,犬对目标物气味建立兴奋性条件反射是基础,发现目标后的示警能力是关键,形成搜索目标物的作业耐力和提升准确性是核心,培养实战环境中的作业能力是目的. 相似文献
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<正>目前,在利用警犬嗅觉作业的专业方向中,搜索类占据了其半壁江山,其重要性可见一斑。为提高警犬搜索训练的效果,提升训练效率,笔者及所在的研发团队研制的一种通用型的警犬搜索组件,于2014年通过公安部科信局的验收并定型。该组件在培养犬仔细低头的嗅认意识、规范准确的示警、良好的搜索形式、巩固的气味联系等方面取得良好效果。一、组成及特性整体的搜索组件由两部分组成:核心组件和辅助组件 相似文献
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警犬搜索潜能开发是指在警犬搜索科目训练中,统筹综合各种培养方式、管理模式、训练理念、饲喂方式及辅助设备,多管齐下,改善警犬的神经类型,提升搜索作业动力。进而增强警犬的自信心、驱动力、注意力和抗干扰能力,并激发其强烈的搜索意愿,最终达到全面提升我国警犬搜索作业能力的目的。 相似文献
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本研究主要采取观察记录、归纳总结等方法,针对罗杜杂交一代犬警觉性高、攻击性强、服从性好、体格健壮、极具勇气和力量等个性特点,在界定的气候条件和训练环境下,分四个时间段(15分钟、30分钟、45分钟、60分钟)测试记录罗杜杂交一代犬搜索面积为30000平方米的一个训练场时的四项测试指标(搜索兴奋性、搜索仔细程度、搜索过程中的警惕性、抗外抑制能力)。并对得到的数据进行分析,由各项指标的变化规律进行归纳总结.得出结论,科学界定罗杜杂交一代犬搜捕作业耐力的最佳时段。 相似文献
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Evidence for the non-involvement of the uterus in the lifespan of the corpus luteum in the cyclic dog 总被引:1,自引:0,他引:1
Progesterone levels in peripheral blood of dogs were analysed during the cycle in which hysterectomy (n = 5) or sham surgery (n = 3) was performed as well as during the cycle of dogs (n = 5) hysterectomized at least one year prior to this study; the data were compared with the findings in control dogs (n = 3). The averages of the duration of the luteal period observed in the three experimental groups were not significantly different from those of control dogs. Immediately after surgery, the progesterone level decreased from 25 to 50% of the presurgical level, but returned to presurgical level in about four days. Prolactin levels were elevated for about 30 h after surgery. Nevertheless, the averages of the mean prolactin levels for each animal during the luteal period of the experimental groups were not significantly different from those of control dogs. It is concluded that in the dog, the uterus is not involved in the lifespan of the cyclic corpus luteum. 相似文献
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嗅源是军犬嗅觉作业训练的依据.军犬鉴别中嗅源能力的培养在整个鉴别训练中占有重要地位,关系到鉴别训练的成败和鉴别能力的提高.所以,军犬在嗅认嗅源时必须按照训犬员的指令充分、细致地感受嗅源气味,并且对嗅源气味产生兴奋反应.如何培养军犬充分嗅认嗅源以及及时解决嗅认过程中出现的问题,成为我们进行鉴别训练的关键.…… 相似文献
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Meschan EM Peham C Schobesberger H Licka TF 《Veterinary journal (London, England : 1997)》2007,173(3):578-584
As there is no statistical evidence that saddle fit influences the load exerted on a horse's back, this study was performed to assess the hypothesis that the width of the tree significantly alters the pressure distribution on the back beneath the saddle. Nineteen sound horses were ridden at walk and trot on a treadmill with three saddles differing only in tree width. Kinetic data were recorded by a sensor mat. A minimum of 14 motion cycles were used in each trial. The saddles were classified into four groups depending on fit. For each horse, the saddle with the lowest overall force (LOF) was determined. Saddles were classified as "too-narrow" if they were one size (2 cm) narrower than the LOF saddle, and "too-wide" if they were one size (2 cm) wider than the LOF saddle. Saddles two sizes wider than LOF saddles were classified as "very-wide". In the group of narrow saddles, the pressure in the caudal third (walk 0.63 N/cm(2)+/-0.10; trot 1.08 N/cm(2)+/-0.26) was significantly higher compared to the LOF saddles (walk 0.50 N/cm(2)+/-0.09; trot 0.86 N/cm(2)+/-0.28). In the middle transversal third, the pressure of the wide saddles (walk 0.73 N/cm(2)+/-0.06; trot 1.52 N/cm(2)+/-0.19) and very-wide saddles (walk 0.77 N/cm(2)+/-0.06; trot 1.57 N/cm(2)+/-0.19) was significantly higher compared to LOF saddles (walk 0.65 N/cm(2)+/-0.10/ 0.63 N/cm(2)+/-0.11; trot 1.33 N/cm(2)+/-0.22/1.27 N/cm(2)+/-0.20). This study demonstrates that the load under poorly fitting saddles is distributed over a smaller area than under properly fitting saddles, leading to potentially harmful pressures peaks. 相似文献
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Observations on the Pathology of the Spleen of the Cat 总被引:1,自引:0,他引:1
Abstract— Lesions were found in the spleen of four of sixty-three cats examined post mortem in the department, and comprised two examples of lymphosarcoma, one of chronic fibrinous peritonitis and one of subcapsular haematoma. Abnormalities were found in two cat spleens received from veterinary surgeons in general practice. In one cat the abnormalities were an haemangiosarcoma with secondary deposits in the liver and in the other extensive mast cell infiltration. In addition lesions were detected in the spleen of three of eighty-seven cats examined post mortem in general practice. The lesions were: multiple secondary deposits of adenocarcinoma from a primary tumour of the mammary gland, a ruptured spleen and a foreign body below the splenic capsule. Résumé— L'examen microscopique de soixante-trois chats pratiqué dans le service a permis de rencontrer quatre fois des lésions de la rate, dont deux lymphosarcomes, une péritonite capsulaire fibrineuse et un hématome sous-capsulaire. D'autre part des lésions ont été trouvées dans deux rates de chat expédiées par des vétérinaires exerçant en pratiaue générale. Chez un chat il s'agissait d'un htmangiosarcome avec métastases hépatiques et chex l'autre d'une infilt ation diffuse par des mastocyta. De plus, on a rencontré des llésions dnas la rate de trois chats parmi quatre-vingt sept autopsies effectuées dans le cadre d'une clientèle génárale. Ces iésions étaient dés métastases multiples d'un adénocarcinome dont la tumeur primitive siègeait dam la glande mammaire, une rupture de la rate et un corps érangers sou capsulaire. Zusammenfassung— Läsionen der Milz wurden bei vier von dreiuiidsechzig in dieser hbteilung sezierten Katzen gefunden, und zwar in zwei Fällen ein Lymphosarkom, in einem Falle eine chron-ische fibrinöse Peritonitis und in einem ein subkapsuläres Hématom. Anomalien fanden sich auch in der Milz von zwei Katzen, die aus der tierxrztlichen Praxis eingesandt wurden. Bei der einen Katze war dies ein Hämangiosarkom mit Metastasen in der Leber, bei der anderen eine weitläufige Infiltration der Mastzellen. Außerdem wurden bei drei von siebenundachtzig in der Praxis sezierten Katzen Milzläsionen gefunden. Diese bestanden am multiplen Metastasen eines Adenokarzinoms der Brustdrüse, einer Milzzerreissung und einem Fremdkörper unterhalb der Milzkapsel. 相似文献