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正前进科目的主要训练任务是培养犬能够按照训导员的口令,独自前行到达训导员指定位置的能力。在实际救援过程中,由于救援现场地势险要、情况复杂,经常出现搜索区域搜救人员无法涉及的情况,此时训导员利用前进科目即可使犬到达指定位置,然后令犬在指定区域搜索被困人员。一、假送法假送法是一种较常用的训练方法,大多数犬应用此方法训练能取得预 相似文献
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美国的所谓箱式搜索训练,是训练犬嗅闻数个封闭箱寻找出某个封闭箱内藏有人的能力,其宗旨是培养犬的搜索能力。箱式搜索训练场地一般设有6个封闭式的1.2米×1.2米的木箱。每个箱子有一个可移动的小门供助训员出入。这6个箱子分列两排,摆放在场地中,两排间距约为24米,箱距约为11米。在两排之间留有训犬员指挥区域。在犬搜索时,训犬员只能待在这一地域之内。犬和训犬员进入场地之前,助训员已藏到其中某一箱内。助训员隐藏后,即可开始进行搜索考核。训犬员带犬进入搜索场地,犬在训犬员的指挥下从其中一排箱子的一头开始搜索。在搜索训练前,助训… 相似文献
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随着我国经济的快速发展,社会矛盾逐渐步入凸显期,爆炸案及爆炸恐吓案的数量也在不断上升。作为搜爆现场的“排头兵”,搜爆犬的作用显得尤为重要,但是在搜索方式上,还有待改进。据笔者所知,我国许多地方现场使用搜爆犬时,仍以牵引搜索和引导搜索的方式进行搜爆作业,此种作业方式会给训犬员和搜爆犬带来巨大的危险。因此,培养搜爆犬远距离自主作业具有非常重要的现实意义。 相似文献
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血迹搜索犬的初期训练从培养犬对草地场地的搜索形式开始,这个过程中包含了犬对血液逐渐产生和加深气味联系,并建立示警能力的培养。训导员在这个初始阶段训练中,应施加正确有效规范的引导以加速警犬实现从草地搜索到硬质地面搜索的过渡,使犬在单调的硬质地面能够比较兴奋地捕捉人体血腥气味,并提高犬精确定点示警的能力;为其后期进行房间内外搜索、车辆内外的平面和立体搜索及稀释血液乃至区别月经血、动物血的训练打下坚实的基础。 相似文献
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本文以德荷杂交犬作为主要的研究对象,通过其与史宾格犬搜索速度进行比较分析,可以进一步研究德荷杂交犬的搜索能力,是否可以进行搜索方面的训练以及作业. 相似文献
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一、 应遵循诱导、奖励为主,强迫、禁止为辅的训练方法
要培养犬积极主动的搜索欲望,使犬对物品要达到“疯”的程度,就要在游戏中培养,要充分发挥诱导、奖励的方法,要以抛物、隐蔽式衔取的游戏方法为主,在游戏中训练和开发犬的搜索能力和嗅觉灵敏度,尤其是对漂浮在空气中爆炸物气味的捕捉能力、复杂气味的分化能力等都要靠训犬员的培养与开发。 相似文献
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一、 应遵循诱导、奖励为主,强迫、禁止为辅的训练方法
要培养犬积极主动的搜索欲望,使犬对物品要达到“疯”的程度,就要在游戏中培养,要充分发挥诱导、奖励的方法,要以抛物、隐蔽式衔取的游戏方法为主,在游戏中训练和开发犬的搜索能力和嗅觉灵敏度,尤其是对漂浮在空气中爆炸物气味的捕捉能力、复杂气味的分化能力等都要靠训犬员的培养与开发。 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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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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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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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