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首页> 外文期刊>Journal of Aquaculture in the Tropics >Growth and production performances of gift strain of Nile tilapia, Oreochromis niloticus L., in ponds and cages under different farming conditions in Bangladesh.
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Growth and production performances of gift strain of Nile tilapia, Oreochromis niloticus L., in ponds and cages under different farming conditions in Bangladesh.

机译：孟加拉国不同农业条件下尼罗河罗非鱼，奥海罗米亚，欧洲核苷酸尼隆尼洛替替氏菌的礼品菌株的生长和生产性能。

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摘要

The growth and production performances of the Genetically Improved Farmed Tilapia strain, known as GIFT, was evaluated along with two locally available tilapia strains, domesticated as existing Nile and red tilapia strains, and with several carp species under polyculture system in ponds and subsequently in cages under on-station and on-farm conditions in Bangladesh. On-station grow-out trial of GIFT and red tilapia strains conducted in replicated ponds for six months revealed significant differences (P < 0.05) in both final body weight and gross production data between the two strains. At harvest, it was estimated that the GIFT strain was 35.74% superior to red tilapia in terms of growth. In a comparative on-farm trial of a local NGO (MCC), the GIFT strain had significantly higher growth rates and better survival than the existing Oreochromis niloticus strain. Production potential of GIFT strain along with several carp species was also evaluated under on-farm polyculture system. Present data reveal that the overall pond production can significantly be increased if the GIFT strain can be combined with other desirable species of carps viz. silver barb (Barbodes gonionotus), mirror carp (Cyprinus carpio var. specularies) and silver carp (Hypophthalmichthys molitrix) rather than growing out GIFT alone. The cage culture study involving only the GIFT strain conducted by CARE Bangladesh, shows that a high net production (30.68 kg/m3) can be obtained with a short period of time (124 days). The potential implications of adopting GIFT technology as a homestead enterprise and disseminating this to small and even large scale entrepreneurs are discussed.
机译：遗传改善的养殖巨珠菌菌株的增长和生产性能，称为礼物，以及两种局部可用的罗非鱼菌株，驯化为现有的尼罗河和红色罗非鱼菌株，以及在池塘的多种植体系下的几种鲤鱼种类和随后的笼子在孟加拉国的车站和农场条件下。在复制池塘中进行的礼品和红色罗非鱼菌株的车站成长试验六个月显示出最终体重和两种菌株之间的总生产数据的显着差异（P <0.05）。在收获时，据估计，在生长方面，礼品菌株优于红罗非鱼35.74％。在局部非政府组织（MCC）的比较农作物试验中，生长率高出较高的增长率和比现有的羚羊内核菌株更高的存活率。在农场多培育系统下还评估了礼品应变的生产潜力以及几种鲤鱼物种。目前的数据表明，如果礼品菌株与其他理想的鲤鱼viz相结合，则可以显着增加整体池塘生产。银色倒钩（Barbodes Gonionotus），镜子鲤鱼（Cyprinus carpio var。镜面）和银鲤鱼（次斜粥疗法）而不是仅仅生长送礼。仅涉及护理孟加拉国的礼品菌株的笼养培养研究表明，在短时间内（124天）可以获得高净生产（30.68kg / m3）。讨论了采用礼品技术作为宅基地企业并传播这方面的潜在影响，并将其传播到小甚至大规模企业家。

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