现在它们却生长在人工撒网里，打捞上来的数量是鱼场养殖数量的十倍。
Now they are born inside nets instead, with ten times as many farmed as fished.
更进一步讲，扩大庭院养殖规模几乎是不可能的。鸡可吃的虫子就那么多，每个农户可以照看的鸡的数量也有限。
Moreover, it is almost impossible to scale up a farmyard operation: there are only so many insects to eat, and so many hens one family can look after.
现在，有的农场开始回归有机养殖，停止使用抗生素后一年，具有抗药性的病原细菌数量大为减少。
But farms that turn to organic practices including a ban on antibiotics can greatly reduce antibiotic-resistant bacteria within only the first year of the change.
代表货运业、家禽养殖业以及木材业的利益团体说，如果增加他们的大卡车税费，他们将无法承受，最后只能减少大卡车的数量。
The trucking, poultry, and timber interests said they couldn't afford the increases on their big trucks, and they got them reduced.
利用检测养殖水域异养细菌和弧菌的数量可预测鱼病的发生。
Fish diseases can be inspected by investigating the number of heterotrophic bacteria and vibrios in cage - cultured waters.
同时提示了对虾肝胰腺细菌数量可望作为评价对虾健康状态及对虾养殖水质环境状况的指标。
It is suggested that the level of bacterial amount in hepatopancreas of shrimp may be used as an indicator for quality of the culture environment and the healthy condition of shrimp.
定义每公顷玉米种植面积上所饲养的奶牛数量称为养殖密度。
The number of cows per hectare corn farmers is called as breeding density.
集中养殖减少了野生鱼类的数量。
在保护和养殖工作的帮助下，萤火虫数量得以恢复，游客的参观费还被用来补偿当地不使用杀虫剂的稻农。
Conservation and breeding help restore the population, while tourist revenues are used to compensate local rice farmers for not using pesticides.
而在内陆地区，本地鱼塘和河道里的鱼同样会生存下来，但数量稀少，远远不能满足可养殖它们的环境。
Inland, fish in the native ponds and riverways will likewise survive, but not in numbers greater than the environment can sustain.
养殖前期使用，能快速培养有益藻类种群，提高水中浮游生物的数量，为鱼虾苗提供充足的天然活饵料。
Using the product in prophase of cultivation will cultivate beneficial algae population to provide early live bait for young fish and shrimp.
项目概况：大鹅养殖在东丰县具有悠久历史，是该县养殖业的主导产业，周边市县也有相当的数量。
Project outline: Dongfeng county has a long history of raising goose. The raising of goose is the county's leading industry. There are quite lot of geese raised by other places around Dongfeng county.
而多数规模化养殖户仍然依据当期价格决定下一期的饲养数量，这也是造成生猪价格波动的主要原因。
For free-range farmers, the factors that affect their breeding pigs are net income, farmland size, the quantity of family labor.
而多数规模化养殖户仍然依据当期价格决定下一期的饲养数量，这也是造成生猪价格波动的主要原因。
For free-range farmers, the factors that affect their breeding pigs are net income, farmland size, the quantity of family labor.
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