青海省羔羊产业化的发展思路

结合当前西部大开发和青海省的绵羊生产情况，阐述了我省羔羊产业化的发展思路及实施羔羊产业化生产中的关键环节。     

羔羊代乳粉在新疆肉羊生产中的应用前景

羔羊代乳粉在羔羊早期断奶和肉羊产业化生产中起着重要的作用。在新疆当前羊肉供需不平衡,羊肉价格过高的情况下,在肉羊产业中使用羔羊代乳粉,发展肥羔肉和优质小羊肉生产,建设集约化、规模化、产业化的养羊业,是解决这种矛盾的有效途径之一。     

加快草原肉羔羊产业化发展的关键措施

在草原推行季节性畜牧业,开展肉羔羊产业化生产,有利于维持草原生态系统的可持续性发展,提高草原优质肉羔羊的生产率和商品率,增加农牧民的经济收益。为此,本文就加快草原肉羔羊的产业化发展的关键措施进行阐述。     

羔羊代乳粉研究进展及其在肥羔生产中的应用前景

文章从羔羊代乳粉的研究进展及其在羔羊早期断奶中的应用等几个方面进行了阐述,分析了肥羔生产的产业优势及产业现状,认为羔羊代乳粉是肥羔规模化、工厂化、产业化生产的主要技术条件,应用前景广泛.     

高效草业与牲畜育肥业耦合发展模式研究

本试验采用引进优良肉用种公羊与藏羊进行经济杂交生产杂一代肉用羔羊,通过“放牧＋补饲”育肥技术,达到当年羔羊适时育肥出栏,加快羊群周转、增加收入,减轻冬春草场压力,保护草地生态和持续合理利用天然草场,提高养羊业经济效益,进一步增强优质羔羊肉市场竞争能力,促进海北州羔羊生产向可持续和产业化方向发展.     

市场扫描

羔羊肉市场销路好 世界绵羊的发展方向已经由毛用转向肉毛兼用或肉用,羊肉生产由成年羊肉转向羔羊肉。为此,专家建议,应加快良种肉羊的种群扩繁和产业化开发。近十年     

夏、寒杂交羔羊肉品质的分析研究

肉羊的产业化生产已被列为畜牧业发展的重要内容,但多限于数量、规模上的发展,有关肉用性能的相关研究相对较少.为推动肉羊业商品化、规模化、产业化生产的发展,此次对夏、寒(夏洛来羊×小尾寒羊)杂交羔羊的肉用品质进行研究,通过对羔羊肉的品质的分析,为肉羊饲养标准的制定,产业化生产,改良方向,选种繁育,杂交模式的确立及夏、寒杂交育种等提供重要的科学依据.     

祁连县羔羊育肥现状及发展思路

近两年来,祁连县紧紧依托畜牧业资源优势,把羔羊销售作为推进畜牧业结构调整和产业化经营、增加群众收入的主要措施,加强组织领导和协调服务工作,积极引导农牧民群众更新观念,转变传统的生产经营方式,发挥农牧民经纪人的中介作用,推动了祁连县羔羊育肥初步向规模化、基地化、专业化、贸工牧一体化的产业化经营方向发展。     

"羔羊经济"与青海养羊业发展的新思路

根据青海省独特的地理环境和养羊业发展现状,结合当今畜牧业经济发展的趋势和市场需求,提出养羊业的发展要走提高肥育羔羊产肉性能,促进羔羊肉产业化发展的“羔羊经济”发展道路。     

奶山羊羔羊人工哺乳技术要点

随着奶山羊产业化的不断发展和养殖规模的逐步扩大,如何提高羔羊成活率,已成为提高奶山羊养殖效益的关键因素之一,其中奶山羊羔羊的人工哺乳技术至关重要。分析哺乳期羔羊死亡原因,阐述羔羊人工哺乳技术的意义和注意事项,提供哺乳参考量,为提高奶山羊羔羊的成活率提供理论基础。     

The effect on wool production of changes in management designed to increase output of lamb from hill land in the United Kingdom

A system of management designed to increase the economic efficiency of the production of weaned lamb from hill land through the use of pasture improvement and controlled grazing has resulted in considerable increases in the outputs of both lamb and wool. In two examples quoted the weight of weaned lamb produced increased by 51 and 94%; these changes were accompanied by increases in wool output of 31 and 84%, respectively. The additional outputs of both products are attributable to a combination of increased numbers of ewes and higher levels of individual animal performance.The increase in output of wool which may be expected from changes in management directed at increasing lamb production is relatively small, ranging from 4.6 to 6.5 kg per 100 kg increase in weaned lamb in the Scottish Blackface to 11.6 kg per 100 kg increase in weaned lamb in the South Country Cheviot. Evidence is presented to show that the magnitude of the increase in wool production is likely to be determined genetically by the response to improved nutrition of both lamb and wool production.     

不同放牧率对混播草地牧草与羔羊生产的影响

通过三种放牧率对混播草地牧草和羔羊生产的影响进行了研究。结果表明，随着放牧率的增加，牧草产量、叶面积指数明显下降（Ｐ＜０．０５）并使茎叶比显著减少（Ｐ＜０．０５）。放牧率的增大，羔羊个体生产速度显著降低（Ｐ＜０．０１），单位面积的畜产品产量依次为中组＞低组＞高组。并得出羔羊生长量与放牧强度及采食牧草干物质量存在密切关系，同时放牧率影响肉的品质，放牧率不同，草地系统生物学转化效率中组比低、高组高，且草地生产能力最大。由此得出，混播草地以中等放牧率为最佳。     

Biologically based coefficients for partitioning lamb and wool production costs.

Global competition for selling lamb and wool requires sheep producers to effectively prioritize wool and lamb production. Both products are produced simultaneously, and this makes it difficult to differentially assess costs and net returns. This study addressed this issue by developing coefficients for use in financial analysis of lamb and wool profitability across and within five regions of the United States (Eastern, Midwestern, Intermountain West, Great Basin, and Texas). A procedure was developed using a sheep simulation model to partition the amount of nutrients used for lamb and wool production and then using the partitioning information to determine the proportion of costs to be assessed to lamb and wool production. Blackface breed types, when managed without nutritional limitations, had lamb and wool coefficients of .90 and .10, respectively. Wool breeds with unlimited and limited nutrition had lamb coefficients between .80 and .20 and .60 and .40, respectively. In-depth analysis of the Great Basin system indicated that wool and its improvement may contribute as much, if not more, under certain pricing conditions, as increased prolificacy to enterprise profitability. With low lamb prices ($1.32/kg) and moderate wool prices, the partial net returns for a Merino x Rambouillet were higher than the tested prolific breed type ($13.85 vs $11.27/ewe, respectively). This ranking was reversed under high ($2.31/kg) lamb prices ($47.90 vs $55.22, respectively). The derived method provides a basis for analyzing, comparing, and making management and breeding objective decisions.     

滩羊冬羔春羔生产效果对比试验

为了探讨优良地方品种滩羊最佳产羔季节,从生产发育、羔羊成活率和经济效益3个方面进行研究试验结果表明,试验组羔羊平均初生重3．66kg,1月龄体重8．80kg,3月龄体重16．78kg;对照组羔羊平均初生重3．42kg,1月龄体重9．60kg,3月龄体重18．25kg。冬羔初生重大于春羔,而断奶期生长速度低于春羔。冬羔的成活率为97．5％,春羔为95．8％。3月龄冬羔每只收入402．72元,春羔每只收入401．5元。春羔虽然断奶期日增重高于冬羔,但综合羔羊成活率、经济效益等因素,在甘肃省景泰县饲养优良绵羊品种滩羊冬羔的生产效果和经济效益优于春羔。     

不同生产期对澳美型鄂尔多斯细毛羊羔羊初生重的影响

为了探讨不同生产期对澳美后代(即用澳美公羊授精鄂尔多斯细毛羊母羊所产羔羊)初生重的影响,该试验选取400只基础母羊,随机分为4组(全部试验羊的日粮水平及饲养管理条件均相同),分别在不同月份授精,待妊娠母羊产羔后,记录其初生重。结果发现,2009年1、2、3、4月妊娠母羊所产单羔的平均初生重依次为(4.81±0.51)、(4.30±0.68)、(3.95±0.70)、(3.98±0.47)kg,双羔的平均初生重依次为(4.03±0.85)、(3.08±0.24)、(3.08±0.53)、(2.87±0.40)kg;2010年1、2、3、4月妊娠母羊所产的羔羊单羔平均初生重分别为(5.43±0.63)、(4.63±0.55)、(4.60±0.73)、(4.54±0.63)kg,双羔的平均初生重分别为(4.10±0.48)、(3.30±0.94)、(3.28±0.68)、(3.10±0.18)kg。由此可见,澳美后代羔羊的初生重与生产期有密切关系,1—4月出生的澳美后代羔羊的初生重呈下降趋势,其中,1月出生的羔羊其初生重均高于2、3、4月出生的羔羊,且每年1月与4月出生羔羊的初生重差异均显著(P<0.05)。     

营养水平对策勒黑羊羔羊生产性能的影响

研究营养水平(A因子:A1为1.0倍NRC、A2为0.9倍NRC、A3为0.8倍NRC)和性别(B因子:B1为公羔、B2为母羔)对策勒黑羊羔羊生产性能的影响及经济效益分析。结果表明,A1B1组羔羊试验末体重分别较A1B2组、A2B1组、A2B2组、A3B1组、A3B2组羔羊提高6.17%、7.44%、12.84%、14.29%、17.22%;A1B1组羔羊平均日增重分别较A1B2组、A2B1组、A2B2组、A3B1组、A3B2组羔羊提高20.87%、17.06%、34.89%、37.35%、39.62%;A1B1组羔羊料肉比分别较A1B2组、A2B1组、A2B2组、A3B1组、A3B2组羔羊降低28.24%、23.96%、62.47%、63.84%、62.96%。根据经济效益分析可知,A1B1组羔羊纯收入分别较A1B2组、A2B1组、A2B2组、A3B1组、A3B2组羔羊增加17.13%、28.19%、41.58%、40.24%、42.69%。由试验可知,采用1.0倍NRC的饲粮饲喂的策勒黑羊公羔羊生产性能和经济效益较高。     

鄂尔多斯细毛羊冬春季保育接羔技术体系研究

介绍了鄂尔多斯细毛羊妊娠母羊的饲养管理技术、接羔保育技术和羔羊的断奶技术。通过上述各项技术措施的应用和实施,不但提高了羔羊的日增重,又大大降低了羔羊的死亡率和鄂尔多斯细毛羊的不合格率,同时也提高了鄂尔多斯细毛羊母羊的繁殖率,既保证了鄂尔多斯细毛羊产业的生产水平和鄂尔多斯细毛羊的繁育,又使鄂尔多斯细毛羊的生长繁殖能完整准确地体现出遗传基因的表型性状,以便于选育提高,为做大做强鄂尔多斯细毛羊产业奠定了坚实的基础。     

The technical development of sheep production from hill land in Great Britain

The hill-sheep farming industry in Great Britain, in which the ewe flocks are dependent on grazed pastures throughout the year, is described briefly. Research work on the relationships between nutrition and the various components of hill-sheep production (principally ovulation rate, lamb birth weight, milk production and lamb growth rate) has provided an understanding of the biological reasons for current low levels of output, and has led to the development of a new system of management. This is based on the provision of improved nutrition, from higher quality pasture, at the two stages in the annual cycle when sheep production is most responsive to changes in nutrition, i.e. during lactation and in the pre-mating/mating period. In large field-scale tests of the new management system increases of 130 to 290% in the weight of weaned lamb produced have been achieved as a result of combined increases in output per ewe and in ewe numbers.