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《北方牧业》2015,(5):10
<正>经历了2014年的阵痛期,2015年成为饲料行业进入转型期的关键一年。纵观整个产业链:原料——饲料——养殖,这一系列环节在过去的一年中遭受沉痛打击,大宗市场最为重要的两种原料玉米和豆粕价格持续走低,尽管临储收购政策对东北玉米稍有支撑,销区市场整体惨淡;豆粕价格更是一跌再跌。饲料市场产销也是差强人意,本该出现在第四季度的销售旺季却迟迟未到来。养殖业用旺季不旺亦可形容。生猪销售清淡、疫情加速养殖户出栏,价格持续下跌。2015年原料、饲料及畜牧养殖市场能否走出低迷?答案是肯定的。2015年饲料原料市场存在转机国内豆粕价格自去年11月初开始持续下跌:主导因素一是进口大豆持续到港,供应宽松。二是消费需求低 相似文献
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<正>近期受美豆涨势和国内养殖业持续复苏等带动,豆粕仍将震荡上行。国内饲料养殖业持续复苏7~9月是国内畜禽养殖旺季,养殖企业为后期节日做准备会大幅增加猪鸡等投栏率,而受国家收储政策支撑,猪肉价格自前期低点稳步回升,养殖效益的改善将促进国内饲料养殖业持续复 相似文献
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2019年非洲猪瘟疫情严重冲击生猪养殖行业,尽管禽类养殖较为积极,但饲料总产量仍下滑,饲料粮消费需求减少。2020年生猪养殖有望逐渐恢复,玉米饲用消费可能维持上年水平,豆粕消费小幅增加。中美两国经贸关系改善,美国大豆出口前景预期看好,预计国际大豆价格反弹将带动国内豆粕价格上涨;临储玉米库存充足,拍卖底价仍是影响下年度玉米市场价格的重要因素。 相似文献
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豆粕是动物养殖的主要蛋白饲料,但其价格居高不下。本项研究旨在研制一种复合蛋白饲料作为豆粕的代用品,以降低饲料成本,保证饲料的正常生产和销售,促进养殖业的健康发展。 相似文献
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近日,中国人民财产保险股份有限公司大连市分公司(以下简称“人保财险大连市分公司”)与中投天琪期货有限公司(以下简称“中投天琪期货”)共同举办的生猪养殖期货收益保险理赔仪式暨产品推介会在大连普兰店顺利举行。据了解,人保财险大连市分公司与中投天琪期货联合推出的生猪养殖收益“保险+期货”项目是国内首个通过期货市场保障生猪养殖户净收益的农业保险,覆盖普兰店地区1家养殖企业和2个养殖农户,合计承保2550头育肥猪。由于玉米和豆粕是猪饲料的主要成份,因此在产品设计中加入了玉米期货、豆粕期货约定时期相应的合约价格要素,经换算,大约可对应玉米和豆粕的现货量分别为550吨和170吨。 相似文献
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最近几年,国内豆粕和玉米市场价格波动剧烈,由于中国经济高速发展,消费水平的提高和消费结构的转变,导致肉、蛋、奶、禽的消费量逐年增长,拉动了饲料用豆粕和玉米的需求。目前,中国榨油用大豆主要靠进口的现实,决定了中国的榨油用大豆价格主要取决于国际市场大豆的价格,进口大豆成本很大程度上决定了下游产品尤其是豆粕的销售价格,而畜禽养殖业成本的70%-80%是来自饲料成本,因此,豆粕和玉米的价格变化将直接反应到养殖业成本当中,续而影响养殖业的健康发展。 相似文献
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魏静 《四川畜牧兽医学院学报》2009,(4):28-32
在现代法律秩序中,商会自治规范是制定法的基础和必要的补充,甚至在某些方面替代了制定法;商会自治规范主要包括商会组织规范、行为规范、惩罚规范以及争端解决规范等;其效力仅及于其内部成员;商会自治规范和制定法之间存在冲突,但也存在整合的基础。 相似文献
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本文概述了猪的毛色类型、猪的毛色遗传模式,着重综述了猪毛色基因分子基础的研究进展,指出存在问题并就未来发展方向做了思考。 相似文献
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REASONS FOR PERFORMING STUDY: Centesis of the bicipital bursa using an 8.9 cm long spinal needle has been reported but the alternative of employing a 3.8 cm long hypodermic needle requires validation. OBJECTIVE: To compare the efficacy of 2 different methods of centesis of the bicipital bursa and to evaluate the usefulness of ultrasonographic imaging to determine the location of solution administered when centesis of the bursa is attempted. METHODS: For Trial 1, 6 clinicians, who had no previous experience of centesis of the bicipital bursa, attempted to inject a solution composed of an aqueous radiopaque contrast medium and physiological saline solution (PSS) into the bicipital bursae of 2/12 horses using the previously described distal approach to inject one bursa and a proximal approach to inject the contralateral bursa. The bicipital tendon and bursa were examined ultrasonographically before and after injection; and both shoulders were examined radiographically to identify the location of the medium. In Trial 2, another 6 clinicians, also with no previous experience of centesis, repeated Trial 1, using 6 horses, but the radiopaque contrast medium was mixed with air instead of PSS. RESULTS: Accuracy of centesis using the proximal approach was 39% and that of the distal approach 28%. Ultrasonographic examination of the shoulder allowed the location of solution and air to be accurately predicted in all 12 shoulders examined. CONCLUSIONS: Clinicians who have had no previous experience performing centesis of the bicipital bursa are unlikely to be successful in centesis using either approach. Radiographic examination after injecting a radiopaque contrast medium may be necessary to assess the success of centesis especially if bursal fluid is not obtained during centesis. Injecting air along with the radiopaque contrast medium provides more accurate ultrasonographic confirmation of centesis and better radiographic definition than does injection without air. 相似文献
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以国际标准强毒R株人工感染非免疫产蛋鸡,定时扑杀,分别从鼻窦、眶下孔、气管、肺、气囊、卵巢和输卵管分离MG,并收集感染鸡所产蛋分离MG。结果表明,人工感染48小时后上、下呼吸道及肺已被全面感染,96小时气囊已被感染,120小时输卵管已能分离到MG,卵巢始终分离不到MG。人工感染鸡自144小时便能在其所产蛋中分离出MG。药物治疗能在72小时内消除感染,油乳剂苗则需24天后逐渐降低蛋内MG分离率,药物卵内注射、种蛋药浴、高温处理均能杀死卵内MG,但以研制的种蛋浸泡剂药浴效果为最好。 相似文献
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Effects of size of ingestively masticated fragments of plant tissues on kinetics of digestion of NDF
Ingestively masticated fragments were collected and sized via sieving. Different sizes of esophageal masticate and ruminal digesta fragments, and ground fragments of larger masticated pieces were incubated in vitro, and undigested NDF remaining at intervals of up to 168 h of incubation was determined. The ruminal age-dependent time delay (tau) for onset of digestion of NDF was positively correlated (P < 0.004) with the mean sieve aperture estimated to retain 50% of the fragments between successive sieve apertures (MRA). Degradation rate of potentially degradable NDF (PDF) and level of indigestible NDF were not related (P > 0.10) to MRA of masticated and ground fragments. Estimates of tau were positively related to MRA, with slopes of bermudagrass < corn silage < ruminal fragments of corn silage. It was concluded that fragment size-, and consequently, ruminal age-dependent onset of PDF degradation of a mixture of different fragment sizes results in an age-dependent rate of degradation of the more rapidly degrading of two subentities of PDF. Models are proposed that assume a tau before onset of simultaneous degradation of PDF from two pools characterized as having gamma-modeled age-dependency and age-constant rates. The ruminal age-dependent pool seems to be associated with the faster-degrading pool, and its rate parameter increases with range in MRA in the population of fragments. Conceptually, the ruminal age-dependent rate parameter for PDF degradation seems to represent a composite of several effects: 1) effects of the size-dependent tau; 2) range in MRA of the population of ingestively masticated fragments; and 3) subentities of PDF that degrade via more rapid age-dependent rates compared with subentities of PDF that degrade via age-constant rates. The estimated fractional rates of ruminative comminution of ingestively masticated fragments (0.060 to 0.075/h) were of a magnitude similar to the mean fractional rates of PDF digestion (0.030 to 0.085/h), which implies that ruminative comminution may be first-limiting to fractional rate of PDF digestion. The in vivo roles of ingestive and ruminative mastication of fragments on PDF degradation must be considered in any kinetic system for estimating PDF digestion in the rumen. These results and others in the literature suggest that the rate of surface area exposure rather than intrinsic chemical attributes of PDF may be first-limiting to degradation rate of PDF in vivo. 相似文献