放养量

进一步根据最大可持续产量理论构建了最适放养量模型。

Based on the theory of MSY ( Maximum Sustainable Yield ), a general optimal-stocking model was formulated .

罗非鱼放养量对盐碱水微型生态系统浮游生物群落的影响

The Effects of Tilapia ( Orecohromis niloticus ) Biomass on the Community Structure of Plankton in Saline-alkaline Water Microcosms

为提高池塘的能量转换效率和鱼产量，必须增加“直食性”鱼类的放养量、减少“滤食性”鱼类的放养量。

So it is necessary to stock more direct-feeding species and apply much supplementary feed in order to achieve higher energy conversion efficiency and fish production .

不同放养量与水交换率对大菱鲆幼鱼的养殖效果及水质条件的影响

The effects on culture results and water quality of cultured juvenile turbot ( Scophthalmus maximus ) under the different stocking rates and exchanging rates of water

通过增加河蚌放养量，补充水生动物资源数量，并与浮床植物等相搭配，可增强水生态系统的稳定性、促进物质循环，达到净化水质的目的。

By increasing the bivalves amount artificially with plant floating-bed , could strengthen the water ecological system stability and promote the substance recycling , finally purifying the water quality .

在养殖周期内密养池塘中的营养物质并没有随鱼的生长、摄食量和排泄量的增加而逐渐增加，说明池塘的自净机制可以支持当前的放养量。

Nutrients in the ponds did not increase with the growth of fish , feeding and discharge , which indicated that the self-cleaning mechanism still support the cultured density .

可以表明：枸杞园放养乌骨鸡运动量大、青绿饲料摄入较多、脂肪摄入量少，对肉的营养有改善作用。

These results demonstrate that the silkies took large amount of exercise , intake of more green feed and less fat in medlar stocking orchard , obviously the nutrition of meat of its meat was improved . 2 .

建立了自来水厂取水口附近的人工生态系统水质模型、研究在水面面积，水生植物放养密度、取水量等改变条件下，取水口处水质的变化特征。

The water quality model in an artificial ecosystem near the water intake region of a water plant was developed and the character of water quality variation with surfacer area 、 macrophyte density and water intake rate of the system were studied .

据此，作者确定了相关的饲养技术措施：鱼种放养规格不小于30克／尾，放养量以10500～14055尾／公顷为适度，饲养周期以2～3年最经济；

Thus the authors established the relative rearing technical methods , i. e. fingerling stocking size , larger than 30 g / indi . ; suitable stocking density , 10500 ~ 14055 fish per ha .