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首页> 外文期刊>International Journal of Atmospheric and Oceanic Sciences >Effect of Varying Species Ratios of Silver Carp on the Growth Performance of Mrigal and Grass Carp in Semi Intensive Pond Culture System
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Effect of Varying Species Ratios of Silver Carp on the Growth Performance of Mrigal and Grass Carp in Semi Intensive Pond Culture System

机译：半集约化池塘养殖系统中不同比例的银鲤对砂and生长的影响。

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The present project was conducted to determine whether difference in stocking ratio of silver carps can affect the growth performance of mrigal and grass carp. Fingerlings of Ctenopharyndon idella, Hypophthalmicthys molitrix and Cirrhinus mrigala were stocked at the ratio of 15:45:45 and 15:45:30 in fertilized experimental pond 1 and 2 with two replicates. Results showed that stocking ratio, species combination and fortnights had significant effect on growth of fish (P<0.01). In pond 1, grass carp gained significantly higher body weight, followed by mrigal and silver carp (322g, 282g and 260g), while in pond 2 silver carp gained higher body weight followed by mrigal and grass carp (400g, 299g and 248g). Results showed that, pond 1 stocked with higher ratio of silver carp gave higher production of grass carp while, pond 2 stocked with lower ratio of silver carp produce higher production of mrigal. Overall net fish production of pond 1 (4036.52 kg) and pond 2 (4207.88kg) statistically varied non significant. From the production point of view it was concluded that high stocking of silver carp to grass carp ponds is a better proposition than to add it to mrigal ponds. Most of the ecological parameters showed highly significant seasonal differences but remained favorable during whole period of study.
机译：本项目旨在确定银鲤放养比率的差异是否会影响沙affect和草鱼的生长性能。以15:45:45和15:45:30的比例放养Ctenopharyndon idella，Mypophthalmicthys mrigtrix和Cirrhinus mrigala的鱼种，并重复两次。结果表明，放养率，种类组合和两周对鱼类的生长有显着影响（P <0.01）。在池塘1中，草鱼的体重显着增加，其次是沙and和silver鱼（322g，282g和260g），而在池塘2中，silver鱼的体重增加，其次是沙m和草鱼（400g，299g和248g）。结果表明，放养比例较高的pond鱼池塘1的草鱼产量较高，放养比例较低的pond鱼池塘2的鱼品产量较高。池塘1（4036.52千克）和池塘2（4207.88千克）的总净鱼产量在统计上没有显着差异。从生产的角度出发，得出的结论是，将鱼放养到草鱼池塘比放养m鱼更好。大多数生态参数显示出明显的季节性差异，但在整个研究期间均保持有利。

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