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<正>2013年,全球大豆供应由紧转松,豆类价格整体趋弱。2013年我国大豆种植面积下降,国产大豆产能也跟着下降,伴随着国内大豆需求的持续增长,大豆进口需求快速上升,致使国内大豆市场对外依存度高达80%,大豆价格受国际市场因素影响波动明显。 相似文献
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春节过后,养殖业饲料需求进入淡季,但国内豆粕期、现货价格均稳居高位。2月份以来,国际大豆价格受南美大豆丰产及上市压力压制,价格出现回调,但国内油粕市场出现分化,植物油价格跟盘下行,而豆粕价格维持坚挺。去年年末笔者曾撰文提示,今年1季度国内蛋白粕市场回落空间有限,但进入2季度后,随着南美大豆上市进度推进,豆粕市场形势也将有所转变。1大豆短期供应紧张难改南美大豆供应压力全球大豆生产主要分布在美国、巴西、阿根廷和中国,其中北半球的美国和中国的大豆于4～5月播种,9～10月为收获期,而南半球的巴西和阿根廷播于10～12月 相似文献
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<正>2012年以来,国内外豆类期货市场在南美大豆持续调低产量、全球大豆供应格局偏紧、国内大豆种植面积下降及下游需求稳定增加的情况下,不断刷新年内高点,收复了2011年9月份以来欧债危机带来的跌幅,豆粕也成为期货市场的明星品种。而国内豆粕现货市场在国内外期市的强势拉动及基本面偏强的共同效应 相似文献
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今年上半年豆粕市场整体呈现先抑后扬的运行趋势。第一季度豆粕市场整体表现偏弱。尽管北美大豆库存偏紧以及南美大豆产量向下修正的双重支撑,美豆整体重心上移。但国内终端养殖业惨淡,油厂亏损严重,豆粕现货价格跌势较为明显,市场整体呈现“外强内弱”。 相似文献
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笔者认为，近期大豆豆粕稳中有降，全国平均价格２３９．４美元／吨，比１０月初下降５．３％；近期豆粕反复震荡，然后下降，将影响菜粕、棉粕价格下跌。１．市场传言１２月２０日之前，至少会有１８０万吨美国大豆抵达中国，其中也有部分南美大豆，由于进口的大豆大部分已经由国内压榨商购买，豆粕供应将继续增加，价格持续低迷。２．由于豆粕和棉粕、菜粕可替代性强，西北新疆等棉籽加工量增加导致棉粕市场供应量增加；前期部分水产饲料厂家已经收购囤积一定数量菜粕，为明年的鱼饲料。市场豆粕价格下跌，使国内菜粕的销售数量下降。３．… 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