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1.
江苏省种草养畜工作现状、问题和对策 总被引：1，自引：1，他引：1
江苏省作为农区因地制宜探索开展种草养畜已成为畜牧业发展的亮点.近几年来,牧草种植面积不断增加,牧草新品种、新技术广泛应用,种草养畜促进草食畜禽生产稳中有升,并成为农民养殖增收的主要途径之一,草业向区域化、规模化、产业化方向发展初显端倪.主要做法:加强种草养畜技术宣传和培训工作,培植、扶持种草养畜龙头企业,积极推动基地建设,认真开展种草养畜科研工作.存在问题:全省种草养畜发展不平衡,牧草品种存在退化现象,草业产业化经营程度偏低,牧草加工龙头企业较少,受扩大粮食种植面积政策的影响,牧草种植面积有所减少.对策:加大农区草业发展的宣传和扶持力度,加强草业科技研究和示范推广工作,大力推进草业产业化进程. 相似文献
2.
通过在湟中县川水地区复种饲草试验,初步探索适宜种植的牧草品种、栽培技术及复种饲草的产量,为川水地区开展草田轮作和种草养畜提供了依据。 相似文献
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通过在湟中县川水地区复种饲草试验，初步探索适宜种植的牧草品种、栽培技术及复种饲草的产量，为川水地区开展草田轮作和种草养畜提供了依据。 相似文献
4.
通过在湟中县川水地区复种饲草试验，初步探索适宜种植的牧草品种、栽培技术以及复种饲草的产量，为川水地区开展草田轮作和种草养畜提供了依据。 相似文献
5.
调整结构，种草养畜，是贯彻省委、省政府“稳粮调结构，增收奔小康”的思路。近来，我们针对种草养畜、畜牧业产业化，到洪雅、眉山、夹江、井研、犍为、沐川、简阳、内江东兴等地作了一些调查研究。通过调研我们认为：种草必须要同养畜相结合，富民增收应以市场为导向，效益为核心。种草养兔投资少、效益好，易形成规模，特别今年是兔年，兔产品市场价格好，应大力发展种草养兔、实现富民增收，推进兔业产业化进程。一、大抓种草养畜是调整优化结构、加快发展的必由之路今年由于市场疲软、外销减少、内销价低，效益较差，严重制约了以生猪… 相似文献
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随着社会经济的不断发展,我国畜牧业取得了巨大的进步,而农田种草养畜则是我国畜牧业发展过程中的产物,也是当前农畜业发展的必然趋势.近几年来我国高度重视农田种草养畜工作,加大了在此方面的物力、财力、人力的投入,取得较为显著的成效.但是,从总体效果来看,我国的农田种草养畜工作还存在着很多的问题.因此,本文紧紧围绕农田种草养畜这一核心主题,探讨了推广农田种草养畜技术的重大意义,分析了当前我国农田种草养畜存在的诸多问题,提出了推广农田种草养畜技术的几点建议,以期提高和推广我国农田种草养畜技术,促进农田种草养畜技术的不断发展. 相似文献
7.
黄河三角洲地区种草养畜存在的问题及对策 总被引：3，自引：0，他引：3
黄河三角洲地区在种草养畜方面,主要存在草畜分离、产业化水平低和人们对种草养畜的错误观念等方面,可以通过扶持壮大龙头企业、建立农村经济合作组织的运作机制,以科技为先导,建立健全各项保障体系,促进黄河三角洲种草养畜的快速发展. 相似文献
8.
本文主要针对种草养畜模式及南方退耕还草养畜展开深入研究,先阐述了种草养畜模式及南方退耕还草养畜的重要性,然后分别提出了几点优化措施,其中,在种草养畜模式方面,要求要丰富和创新种草养畜模式、提高牧草的种植技术、退耕还草养畜的管理等,而在南方退耕还草养畜措施,要求要积极发展草食畜牧业、制定优惠政策、注重保护天然草原等,充分彰显出种草养畜模式的应用价值,而且借助南方退耕还草养畜,可以满足生态环境改善需求,将水土流失的发生概率降至最低。 相似文献
9.
农田种草养畜模式初探 总被引：3，自引：0，他引：3
肖广庆 《河南畜牧兽医(综合版)》2005,26(1):32-33
种草养畜是发展草食家畜的一项重要措施,是发展绿色畜牧业的重要途径,对调整农业结构、增加农民收入、促进农业良性循环和可持续发展具有重要意义。洛阳市按照以畜定草、草畜结合的办法,经过3年多对种草养畜模式的探索、试验、示范和推广,取得了良好的经济效益和社会效益,人工种草面积已达15万亩。在种草养畜模式的探索上取得了一些实践经验,现介绍如下:1农区种草养畜主要内容农区种草养畜包括两个方面,一是草山草地开发利用,二是农田种草养畜。相对而言,农田种草养畜潜力较大,农田种草的产量是草山草坡的2～3倍,经济效益较好。农田种草养畜… 相似文献
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The humoral response of cattle to ovalbumin (OA), a nonenvironmental well-defined antigen, was studied. During 9 weeks of aerosolization, weekly serum and nasal secretion concentrations of immunoglobulin (Ig)G1, IgG2, IgM, IgA, and IgE were determined by enzyme-linked immunosorbent assay (ELISA) for OA specific antibody. Data from 3 calves given aerosol OA were compared and contrasted with data from 3 calves given aerosol saline solution and 1 calf given parenteral OA. The presence of cytotropic (skin sensitizing) antibody was evaluated during weeks 6 and 9 by direct skin testing with OA. A humoral response was induced in all 3 calves given aerosol OA. Serum IgG1 and IgG2 titers reached a maximum of 64,000 and 2,000, respectively, in calves given aerosol OA compared with 521,000 and 16,000, respectively, in the calf given parenteral OA. The ELISA did not detect an OA-specific IgM response. In contrast, all 3 calves given aerosol OA had serum IgA concentrations that increased to a peak by week 9. The mean IgA absorbance value for the 3 calves given aerosol OA was slightly greater than 5 times that of the calf given parenteral OA. Similarly, nasal secretions from calves given aerosolized OA had absorbance values that were 15-fold greater than that from the calf given parenteral OA. Calves given aerosol OA had antigen-specific IgE responses during weeks 6 to 8. The ELISA results were compared with results of passive cutaneous anaphylaxis tests. The presence of skin-sensitizing antibody was indicated by positive skin tests in the calves given aerosol OA and the calf given parenteral OA by week 9. 相似文献
12.
The suppression of nematode egg output in faeces was measured in ewes treated just before lambing with either oxfendazole or ivermectin by oral drench or with ivermectin by subcutaneous injection. Ivermectin and oxfendazole given orally were similarly effective, whereas ivermectin given by subcutaneous injection extended the period of suppressed egg output by about one week. The more persistent anthelmintic effect of ivermectin given subcutaneously was probably due to its extended half-life in the plasma of treated sheep. Plasma pepsinogen activity was less in the sheep given anthelmintic than in the untreated controls. Ivermectin caused a significantly greater reduction in pepsinogen activity than oxfendazole and was more effective when given subcutaneously than when given orally. 相似文献
13.
Swine were given a series of injections of soluble or whole cell antigens of group E Streptococcus (GES). In experiment 1, swine given autoclaved extracts developed greater amounts of antibody to antiphagocytic factor (as detected with bactericidal and long-chain tests) than did swine given pepsin-extracted or whole cell antigens, and the swine given extract developed fewer abscesses when challenge exposed with live virulent GES added to their feed. In experiment 2, swine given injections of concentrated autoclaved extract develped higher antiphagocytic factor antibody titers than did control swine given injections of physiologic saline solution. When challenge exposed with live virulent GES by exposure to carrier swine, swine that were given extract developed 71.4% fewer abscesses than did the control swine. Furthermore, 58.3% of the abscesses in the swine that were given extrac" were less than 1 cm in diameter as compared with 38.2% of the abscesses in the controls, suggesting that the development of some abscesses was arrested in vaccinated swine. Data indicate that a degree of immunity to streptococcal lymphadenitis of swine can be induced by vaccinating swine with nonliving GES antigen. 相似文献
14.
Healthy mature dogs were given digoxin orally at the same dose once a day (SID) or divided (BID) at 12-hour intervals. Blood concentrations of digoxin were determined by radioimmunoassay. When the drug was given SID, peak blood concentrations were higher than, but lowest blood concentrations were not different than, those obtained when the drug was given BID. Thus, average blood concentration throughout 24 hours was significantly (P less than 0.05) greater when digoxin was given SID than when given BID. This suggested a reduced rate of clearance and an increased risk for toxicosis for digoxin when given SID versus BID. Peaks of digoxin blood concentrations were lower when the drug was given BID rather than SID; however, we do not know whether the smaller fluctuations can be translated into greater efficacy and/or less toxicity. Unless those questions are answered, we recommend that digoxin be administered BID to mature dogs. 相似文献
15.
P M Tamas M A Walker R R Paddleford S R Tinkel 《Journal of the American Veterinary Medical Association》1986,188(7):710-712
Diuresis by IV administration of 5% dextrose in a balanced electrolyte solution (BES) reduced the frequency of occurrence of postmyelographic seizures in dogs. In the first study, a single myelogram was obtained in 8 dogs without dextrose diuresis. Two of these dogs weighed greater than 15 kg and both had seizures after metrizamide myelography. The remaining 6 dogs weighed less than 15 kg and only 2 had seizures. Greater body weight may have increased the risk of postmyelographic convulsions. In a crossover study, myelograms were obtained in 12 dogs weighing 20 to 31 kg. Six dogs were given 5% dextrose in BES (20 ml/kg of body weight/hr [diuresed]) and 6 were given BES alone (10 ml/kg/hr [not diuresed]). When myelography was repeated 10 days later, the 6 dogs that had been given 5% dextrose in BES were given BES only and the 6 dogs that had been given BES alone were given 5% dextrose in BES. The frequency of convulsions after metrizamide myelography was lower when dogs were given dextrose (33%) than when they were not (100%). 相似文献
16.
Turkeys given cell-free culture filtrate (CCF) of Pasteurella multocida strain R44/6 orally, via air sacs, or subcutaneously mixed 1:1 with incomplete Freund's adjuvant (IFA) at 6 and 9.5 weeks of age were compared with negative controls given bacteriologic medium and positive controls vaccinated with a commercial bacterin. At 13 weeks of age, serum antibody titers to P. multocida were detectable only in turkeys given CCF in IFA (low titers) and positive control turkeys (high titers), at which time turkeys were challenged orally with either the homologous strain or strain P-1059. Protection against challenge with strain R44/6 was provided by the commercial bacterin, CCF in IFA, and CCF given via air sacs. When turkeys were challenged with strain P-1059, protection was superior in turkeys given CCF via air sacs, intermediate in turkeys given commercial bacterin or CCF in IFA, and absent in negative control turkeys and turkeys given CCF orally. These results indicate CCF is an effective immunogen when administered via the lower respiratory tract for protecting turkeys against pasteurellosis. 相似文献
17.
V H Guerrini P B English L J Filippich J Schneider D W Bourne 《American journal of veterinary research》1986,47(9):2057-2061
Three Merino ewes were given cefotaxime IM, and 3 were given cefotaxime subcutaneously (50 mg/kg of body weight each); each dose was suspended in 6 ml of oil. Five dogs were also given an oily suspension of cefotaxime subcutaneously (SC) (50 mg/kg of body weight). The plasma concentrations (Cp) and pharmacokinetic data obtained after cefotaxime in the oily suspension was injected IM and SC were compared with data from the same animals after they were given an aqueous solution of cefotaxime by the same routes. Key pharmacokinetic values obtained after cefotaxime was administered IV to sheep and to dogs are discussed. Mean peak Cp (Cpeak) in sheep when given the oily suspension IM was approximately 53 micrograms/ml at 0.18 to 0.40 hour, and that value in sheep given the aqueous preparation was 62 micrograms/ml 0.08 to 0.18 hour. Mean Cpeak values after the oily suspension and the aqueous preparation were injected SC were 11.0 micrograms/ml (between 0.8 and 1 hour) and 51 micrograms/ml (between 0.25 and 1 hour), respectively. Bioavailabilities were approximately 70% after IM injection was done and 90% after SC injection was done. The beta-plasma half-lives were 0.7 hour after IM injection was done and 2.9 hours after SC injection was done. Mean Cpeak in dogs when given the oily suspension SC was 30 micrograms/ml at 1.0 hour, and when dogs were given the aqueous preparation SC, Cpeak was 27 micrograms/ml at 0.6 hour. Absorption was virtually complete after the oily suspension and aqueous preparations were given.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
18.
K H Hoblet W P Shulaw L J Saif S E Weisbrode S E Lance R R Howard E J Angrick D R Redman 《American journal of veterinary research》1992,53(8):1400-1408
Over a period of 3 summers, 21 colostrum-fed Holstein bull calves, 1 to 3 days old, were assigned to 7 replicates, each consisting of 3 calves. Within each replicate of 3 calves, 2 were selected at random, to be given 100,000 to 146,000 sporulated coccidia oocysts (principally Eimeria bovis) orally 60 hours after arrival at the college research farm. On the thirteenth day after coccidia inoculation, 1 of the 2 calves that had been given coccidia and the third calf that had not been inoculated, were given coronavirus by intranasal and oral routes. Calves were observed daily, and consistency of feces was scored visually. Nasal swab specimens for indirect immunofluorescent antibody testing for coronavirus and fecal samples for oocyst determination were obtained approximately every third day. Of 7 calves that were given only coronavirus, 3 developed diarrhea of short duration. Of 7 calves that were given only coccidia oocysts, 6 developed diarrhea. All 7 calves inoculated initially with coccidia and subsequently with coronavirus developed diarrhea. For 5 of 7 replicates, calves that were given coccidia and coronavirus developed diarrhea first. When overall severity, measured by fecal score and by blood in the feces, was compared, calves inoculated with coccidia followed by coronavirus were more severely affected (P less than 0.05) than were calves that were given only coronavirus. Calves that were given only coccidia oocysts appeared more severely affected than calves that were given only coronavirus, but differences were not significant.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
19.
F. ALEXANDER 《Journal of veterinary pharmacology and therapeutics》1982,5(3):153-160
The effect of ethacrynic acid, bumetanide, frusemide, spironolactone and antidiuretic hormone (ADH) on the urinary and faecal excretion of water and electrolytes by ponies was studied. Ethacrynic acid, bumetanide, and frusemide given intravenously, increased urinary sodium excretion, and, excepting frusemide, decreased faecal sodium excretion. Given by stomach tube ethacrynic acid reduced urinary and faecal sodium. Bumetanide, given intravenously, spironolactone, frusemide and ADH increased urinary sodium and all except frusemide intravenously decreased faecal sodium regardless of route of administration. Ethacrynic acid and bumetanide, given by stomach tube or intravenously decreased urinary and faecal potassium excretion, as did spironolactone and frusemide given orally. Ethacrynic acid and bumetanide given orally or intravenously, frusemide given orally and ADH intranasally reduced urinary chloride excretion; these same drugs by the same routes also reduced faecal chloride excretion. Excepting frusemide given intravenously, and ethacrynic acid orally, the effect of the drugs studied was not the same on urinary sodium excretion as on faecal sodium excretion. This suggested that different mechanisms were involved in the control of sodium excretion by the kidney and in the gut. There were similarities in the treatment of potassium and chloride by these organs. 相似文献
20.
Antibody Production in Milk Serum after Virus Instillation of Goat Mammary Gland IV. Experiments with Protective Properties of Specific Influenza Antibody Associated with Lactogammaglobulin 总被引：1，自引：1，他引：0 
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下载免费PDF全文 Chas. A. Mitchell L. F. Guerin A. E. Pasieka 《Canadian journal of veterinary research》1971,35(1):52-59
The protective property of specific antibody against influenza PR8 associated with lactogammaglobulin was investigated. The antibody was given to groups of mice by the intramuscular and respiratory routes before exposure to adapted virus contained in aerosols of two concentrations, one being capable of killing all unprotected mice. A temporary, but well-marked, passive immunity was demonstrated in those receiving antibody intramuscularly; if a second injection was given later, resistance was prolonged. A second respiratory challenge of concentrated adapted virus given to survivors three weeks later revealed evidence of immunity.
Antibody given by the respiratory route gave varying results. When given once, either a fleeting protection or protection which led to an active immunity followed. This appeared to depend on whether a degree of propagation within the lung took place for several days after challenge. When antibody was given daily and propagation failed to take place, only a temporary immunity resulted and the mice were unprotected against another challenge.
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