它们自由自在、无拘无束地在野外生活，当然要比集约养殖的鸡和猪好。
It had a pretty footloose and fancy-free life in the great outdoors - certainly better than that of a factory-farmed chicken or pig.
巴西东北部和墨西哥等集约化养殖地区的最佳生长期可能会降至120天以下，这对玉米等作物的成熟至关重要。
Intensively farmed areas like northeast Brazil and Mexico are likely to see their prime growing seasons fall below 120 days, which is critical for crops such as corn to mature.
克朗计算出在集约奶牛养殖使用的草炭牧场每年的温室气体排放量为每公顷16000公斤二氧化碳当量。
Kroon calculated that the annual greenhouse gas emissions in a peat pasture area used for intensive dairy farming were 16000 kilo of CO2 equivalent per hectare.
在世界各地，养殖方法和环境众多而不同，集约化程度和生物效率不一。
Throughout the world it is practiced in many different ways and environments and with differing degrees of intensity and biological efficiency.
同时，由于养殖企业具有集约化、生产规模化、管理规范化的特点，具备了应用数字化技术的可行性。
At the same time, the characters of intensivism, produce scale and management standardization the feeding enterprises own increase the feasibility of digitization technology.
针对集约化水产养殖场因水质导致的养殖风险问题，提出集约化水产养殖的水质预警系统。
Aiming at the problems of risk caused by water quality in aquaculture farm, this paper proposes a water quality early warning system for intensive aquaculture.
针对当前集约化养殖引起的环境污染问题，提出用生物过滤器处理农业臭气。
Aiming at severe entironment pollution question caused by intensive feeding, the use of biofilter is presented.
本文旨在探求在高寒地区集约化养殖场开展能源环境工程建设的前景。
This paper aims to explore the prospect of developing energy and environmental engineering of the centralization-breeding factory in the cold area.
我国水产养殖业快速增长的历程，正是从粗放经营向集约经营转变的过程。
The history of rapid increase in aquaculture industry in our country is just the transition process from extensive to intensive management.
随着畜牧业生产规模的扩大和集约化程度的提高，畜禽养殖场产生的恶臭所造成的危害已经引起人们的普遍关注。
With the development of production scale and intension of animal husbandry industry, more and more people are concerning the damage of malodor contamination from livestock and poultry farms.
养殖方式由粗放型养殖向集约化和工厂化转化，将为计算机监控技术在水产养殖业的应用提供更大的空间。
As aquaculture continues to develop, especially the model changed from extensive farming to intensive farming, more space is provided to the computer monitoring system.
养殖方式由粗放型养殖向集约化和工厂化转化，将为计算机监控技术在水产养殖业的应用提供更大的空间。
As aquaculture continues to develop, especially the model changed from extensive farming to intensive farming, more space is provided to the computer monitoring system.
应用推荐