共查询到20条相似文献，搜索用时 250 毫秒
1.
2.
根据对全国450个畜产品及饲料价格信息点调查统计．7月份与上月相比（以下称环比），生猪、玉米、鱼粉价格上涨，豆粕价格下降；与去年同期相比（以下称同比），玉米、鱼粉价格上涨，生猪、豆粕价格下降。本月活猪价格回升较快，猪粮比价上升到4．56：1，比上月上涨0．19个百分点．但仍在盈亏点5．5以下。 相似文献
3.
根据对全国450个畜产品及饲料价格信息点调查统计，2006年6月生猪产品及饲料价格与上月相比（以下称环比），活猪、玉米、鱼粉上涨，仔猪、猪肉、豆粕价格下降；与2005年同期相比（以下称同比），玉米、鱼粉价格上涨，生猪产品、豆粕价格下降。由于活猪价格上涨幅度没有玉米价格上涨幅度大，使得猪粮比价继续下跌为4.37：1，比上月下降0．08个百分点。 相似文献
4.
根据对全国450个畜产品及饲料价格信息点调查统计，8月份生猪产品及饲料价格与上月相比（以下称环比）都上涨，只有豆粕价格下降；与去年同期相比（以下称同比），玉米、鱼粉价格上涨，生猪产品、豆粕价格下降。本月活猪价格继续回升，猪粮比价上升到5．01：1，比上月上涨0．45个百分点，但仍低于5．5：1的盈亏点。 相似文献
5.
根据对全国470个畜产品及饲料价格信息点调查统计，与上月相比，3月份生猪产品和饲料价格呈现不同的波动趋势，猪肉价格回落，仔猪价格大幅上涨，玉米等饲料价格小幅上扬。本月猪粮比价又创新高，达到9．52：1，连续19个月高于5．5：1的盈亏平衡点。 相似文献
6.
根据对全国450个畜产品及饲料价格信息点调查统计，2006年5月份生猪产品价格环比、同比都下降，玉米、进口鱼粉则全上涨，其他饲料价格环比上涨、同比下降。由于活猪价格下降而玉米价格上涨，使得猪粮比价继续下跌为4．45：1．比上月下降0．4个百分点，生猪业形势更加严峻。 相似文献
7.
全国畜牧总站行业统计分析处 《中国牧业通讯》2006,(18):53-54
根据对全国450个畜产品及饲料价格信息点调查统计．8月畜产品及饲料价格与上月相比（以下称环比），猪牛羊禽产品、玉米、鱼粉价格都上涨．豆粕价格下降：与去年同期相比（以下称同比）．牛羊肉、玉米、鱼粉价格上涨．生猪、家禽产品、豆粕价格下降。本月活猪价格继续回升．猪粮比价上升到5．01：1．比上月上涨0．45个百分点．但仍低于5．5：1的盈亏点。 相似文献
8.
全国畜牧总站行业统计分析处 《中国牧业通讯》2006,(16):52-53
根据对全国450个畜产品及饲料价格信息点调查统计．7月份畜产品及饲料价格与上月相比（以下称环比）．生猪、家禽产品、玉米、鱼粉价格上涨．牛肉、羊肉、豆粕价格下降：与去年同期相比（以下称同比）．牛羊肉、玉米、鱼粉价格上涨，生猪、家禽产品、豆粕价格下降。7月活猪价格回升较快．猪粮比价上升到4．56：1．比上月上涨0．19个百分点．但仍在盈亏临界点5．5：1以下。 相似文献
9.
10.
11.
12.
13.
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
14.
15.
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
17.
18.
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
19.
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