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年初以来,我国一些地区发生“非典”,对畜牧业、水产养殖业及动物产品出口已产生了直接的影响,国内市场的肉类产品也遭到消费者的回避,价格曾一度下跌。特别是从果子狸等动物查到类“非典”冠状病毒,并认为“非典”病毒很有可能来自野生动物后,很多地方出台了禁食、禁养野生动物的规定,野生动物(经济动物)的饲养受到很大的冲击。 相似文献
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SARS作为一种人类从来没有遇过的疾病，其病原已被证实是一个典型的外来入侵种，并证明可能与果子狸等野生动物有关。人类在面临这场突然而来的灾难时，在科技界尚没有定论的情况下，各种猜测讹传四起，在一些地方出现了种种盲目的非理性行为。一段时间，有人怀疑SARS病毒与家养宠物有关，于是，从限制饲养宠物犬、捕杀无证犬升级到各地频发虐待动物、遗弃宠物的事件，甚至出现了有人将宠物犬从6楼扔下再活埋的惨剧，最终导致大量被遗弃的宠物流离失所、浪迹街头荒野。 相似文献
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SARS作为一种人类从来没有遇过的疾病,其病原已被证实是一个典型的外来入侵种,并证明可能与果子狸等野生动物有关.人类在面临这场突然而来的灾难时,在科技界尚没有定论的情况下,各种猜测讹传四起,在一些地方出现了种种盲目的非理性行为.一段时间,有人怀疑SARS病毒与家养宠物有关,于是,从限制饲养宠物犬、捕杀无证犬升级到各地频发虐待动物、遗弃宠物的事件,甚至出现了有人将宠物犬从6楼扔下再活埋的惨剧,最终导致大量被遗弃的宠物流离失所、浪迹街头荒野. 相似文献
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我们的地球是人与动物共享大自然的乐园。然而．当前人类出现的“非典”疫情打破了乐园的宁静，SARS病毒威胁着人类的生命．给国人带来了灾难“非典”的初步研究发现人和野生动物果子狸有同源性。 相似文献
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廖延雄 《畜牧兽医科技信息》2004,(4):36
非典病毒(SARSvirus)是新的感染于人的病毒,是一种新的冠状病毒(coronavirus),其形态、结构、生长繁殖,与其他冠状病毒相似。其来源,有动物原之说,怀疑较多的是果子狸,因为从广东的果子狸分离到冠状病毒与SARS病毒相似。其实,在SARS未出现以前,禽、猪、人、鼠、犬、火鸡、牛、猫等都发现过多种冠状病毒相似,但不同;还有人的SARS病毒来自猕猴、雪貂之说,无定论。猪禽与SARS病毒的关系怎样?Weingartl等人做了一个试验(见2004年2月的EmergingInfectiousDiseases杂志10卷2期179～184页),将SARS病毒用细胞培养繁殖后,以静脉注射、口… 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