Afcd assistant director ( fisheries ) mr cheung man - kwong said today ( june 10 ) that it was the fourth time in five years that the department conducted fish fingerlings release 渔护署助理署长（渔业）张文刚今日（六月十日）表示，这是该署五年内第四次试验放养鱼苗。
The pig needed more food than just the leftovers etc , and the peasants had rights to take their animals onto common land to graze or into the landowners woodland 猪采食量大，仅仅剩饭剩菜是不能满足它们的需求，农村养殖户会把猪赶到田地里或者是在森林里放养，让他们拱地获取地下的食物。
The study , conducted for 2 . 5 years at a research farm in south west iowa , compared sows housed in stalls to those housed in naturally ventilated hoop barns with straw bedding 这项研究是在爱荷华州西南的一个农场进行的，历时2 . 5年，对照组放养在单独猪栏里，试验组大群放养，垫料为稻草。
Pre - release surveys have been conducted to collect the baseline data on the release sites . post - release surveys will also be carried out at regular intervals to assess the effectiveness of the release 渔护署放养鱼苗前已在投放地区进行调查，以收集有关的背景资料；放养鱼苗后也会定期调查，评估放养的成效。
" we have selected artificial reefs as the releasing sites because they provide a suitable habitat for shelter and protection . " to prevent depleting natural fingerling resources , artificially propagated fingerlings are used . 我们选择在人工鱼礁区放养，因为它们可为鱼苗提供适合生长并受保护的生态环境。
He said the government was pursuing various management measures , including the artificial reef programme and restocking of fish fingerlings , to conserve fisheries resources and establish sustainable fisheries 他表示，政府会实施一系列措施，存护渔业资源和促进渔业的持续发展。这些措施包括敷设人工鱼礁和鱼苗放养。
" the programme is to assess the suitability of adopting restocking as a marine conservation and fisheries enhancement measure , " said afcd senior fisheries officer ( fisheries management ) dr leung siu - fai 渔护署高级渔业主任（渔业管理）梁肇辉表示：该试验有助评估放养措施对存护海洋环境和增加渔业资源的可行性。
About one million red tail prawn fry were released in sha chau and lung kwu chau marine park today ( june 6 ) as part of a trial programme by the agriculture , fisheries and conservation department ( afcd ) 渔农自然护理署（渔护署）今日（六月六日）在沙洲及龙鼓洲海岸公园，投放约一百万尾红尾虾虾苗，进行放养试验计划。
Fish stocking in niushan lake eliminated submersed macrophytes and gave indirect effect on biomass in niushan lake to an extent that gastropod was only 1 / 5 as much of a typical macrophytic lakes such as hong lake 牛山湖中鱼类的放养使水草出现衰退，该湖底栖动物虽然仍以螺类等刮食者为上，但生物见只有洪湖等典型草型湖泊的1 5 。
In the past few years , the department has conducted 4 restocking trials with 57 000 fish fry and 1 million prawn fry released in suitable waters with a view to assessing its effectiveness in enhancing fisheries resources 本署于过去数年亦在合适的水域进行了4次放养试验，共投放了57000尾鱼苗和100万尾虾苗，以评估该措施对增加渔业资源的成效。
