Genetic improvement by crossing was a main practice for more than 20 years in beef cattle production in China.
杂交改良是20余年来我国肉牛生产的主要实践。杂交是育种的方法之一。但它同正规的育种工作是有界限的。
Finally, quality alfalfa production and using and its significance in dairy cattle production were also introduced.
系统的介绍了优质苜蓿草的高效生产与科学利用以及在奶牛生产中的作用与意义。
As a result, the native forest-dwellers began to be displaced, and newcomers started clearing large areas for cattle production and rubber tapping.
其结果是，雨林周围的原住居民被迫迁移，而土地新的拥有者们开始清理出大片的领地作畜牧和制造橡胶之用。
Its broad, international coverage includes feedlot systems, transport, subsistence farming systems and the contribution of cattle production systems to land, air and water pollution.
其广泛的国际范围包括饲养场系统，运输，生活耕作制度和牛的生产系统对土地，空气和水的污染。
During farming rears cattle primarily for milk production.
乳品业饲养的牛主要供生产牛奶。
Twenty years ago, when the Soviet Union collapsed, so did beef production in Russia. Breeding and management programs for beef cattle fell apart.
苏联20年前解体时，俄罗斯的牛肉生产也随之瓦解，菜牛(又译肉用牛、食用牛)的饲养和管理项目分崩离析。
Chimney steam can be diverted to heat greenhouses. Unused meat and bone from cattle rendering can be burned as fuel for cement production.
烟气可以原来加热温室，未消耗的牛肉和牛骨可以作为燃料燃烧用来生产水泥。
The reason of loose grain forming in production of cattle hide upper leather was discussed in this paper, technical measures of solving the problem of loose grain were found out in years′ practice.
本文讨论了在黄牛鞋面革生产过程中产生松面的原因，并经过多年的生产实践，摸索出解决松面问题行之有效的技术措施。
At present, the company owns one cattle and sheep slaughtering production line, one cattle and sheep processing production line, as well as a cooked meat production workshop.
目前，公司拥有牛羊的屠宰、加工生产线各一条和熟肉制品生产车间一座。
The key technologies for making satisfied corrected grain soft cattle leather are summarized on the basis of practical production and theoretical analysis.
以生产实践为基础，加上简单的理论分析，总结了黄牛修饰软面革的制作技术关键。
In Slovenia, agricultural co-operatives are responsible for 72% of the milk production, 79% of cattle; 45% of wheat and 77% of potato production.
在斯洛文尼亚，农业合作社承担了牛奶生产的72%，肉牛生产的79%，小麦生产的45%，土豆生产的77%。
A process for production of carpet leather from cattle hide was introduced.
介绍了黄牛地毯革的生产工艺。
As regards cattle feed, the picture is as usual very contrasted across Europe, depending on weather conditions for forages production.
与往常一样，牛类饲料在各国差异较大，具体取决于各地饲草生产的气候条件。
In cattle, the first symptoms include dullness, refusal to feed and a fall in milk production.
在牛第一个症状包括精神迟钝、拒食和产奶量减少。她的两只手娇慵地放在身边。
Western competition caused the northeastern farmer to reduce grain cultivation, and only dairy cattle remained important in animal production.
西部的竞争迫使东北部农民削减粮食种植，而畜类中只有奶牛仍保持重要地位。
It's main traits are rapid growth, high yield and good palatability, fit for the intensified cattle farm and fishing farm. It is also fit for production of ensilage and hay.
主要特点是生长快，产量高，适口性好，适宜于集约化养牛场、鱼场和大面积贮存青、干草等生产。
In this paper, author has discussed the key details of the production technology for cattle grain garment leather, and put forward some practical measures.
本文较为全面地分析了黄牛皮正面服装革生产工艺技术关键，提出了合理可行的工艺措施。
This method not only makes the dairy farming production under the digital management but also provides a theoretical basis for precision cattle breeding.
该方法不仅实现了对奶牛生产养殖的数字化管理，也为精细养牛提供了理论依据。
The application research of cattle hide finishing technique in the production of superfine fibre synthetic leather was described.
论述了牛皮加工整饰技术在超细纤维合成革生产中的应用研究。
The quality requirements and the key technologies for the production of chrome - tanned cattle grain garment leather are introduced.
介绍了铬鞣黄牛正面服装革的质量要求及试制过程中的若干技术要点。
This paper inquired into a series of technical measures in leather production, that solved the problems of fat wrinkles of neck and belly on cattle hide fairly good.
本文探讨了在制革生产过程中所采取的一系列的可较好地展开黄牛皮颈皱和肚边肥纹的技术措施。
The specialized farms with large scale are the main production bodies, engaging in grain crop industry, sheep industry, cattle industry or holding two or three industries concurrently.
以专业化的大型农场为主体，从事谷物种植业、养羊业、养羊牛业或兼营以上两种或三种。
On the supply side, relatively weak growth in milk production from reduced cattle herds, particularly in some exporting regions, has under-pinned firm prices.
在供应方面，牛场数量的减少导致牛奶产量增长相对缓慢。
The aim was to lay the foundation and provide the technical basis for improving the local varieties of Ebian flower cattle, advancing the meat production rate and preserving germplasm.
为改良峨边花牛地方品种、提高产肉率及种质资源的保存奠定基础和提供技术依据。
The factors affecting the hay production and the influences of chemical desiccant on the production of hay and the performance of dairy cattle were introduced.
本文介绍了影响干草制备的因素及化学干燥剂对干草制备和奶牛生产性能的影响。
More than 12,500 cattle have died in Holguin alone in 2004 and milk production has fallen 20 percent.
2004年仅在霍尔金一省就有超过12500头牛死亡，乳制品产量曾下降了20%。
More than 12,500 cattle have died in Holguin alone in 2004 and milk production has fallen 20 percent.
2004年仅在霍尔金一省就有超过12500头牛死亡，乳制品产量曾下降了20%。
应用推荐