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大规格鲤鱼种养殖技术研究 被引量:1

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摘要 选择667m2池塘放养鲤鱼乌仔5000尾,搭配鲢乌仔800尾,鳙乌仔700尾,随机分成两组,每组1个重复池,各试验池均投喂同一厂家的饵料。天然饵料丰富的一组池塘中,101#和102#池塘应用生态方法防治鱼病,其平均出池规格136g,鲤鱼平均产量624.5kg/667m2,鲢鱼平均产量136.1kg/667m2,鲤鱼饵料系数平均为1.58。天然饵料较差的一组池塘中,103#和104#池塘应用常规方法防治鱼病,其平均出池规格92.5g,鲤鱼平均单产346.75kg/667m2,鲢鱼平均单产70.8kg/667m2,鲤鱼饵料系数平均为1.94。天然饵料的分布密度主要影响了鱼苗的成活率、鲤鱼规格的均匀度和鲤鱼前期的生长速度。天然饵料丰富的一组池塘中鲤鱼成活率可达90%以上,放苗后20d左右的时间内,不用投饵鲤鱼苗可达到20g左右,出塘规格均匀。天然饵料分布较差的一组池塘中鲤鱼成活率在75%左右,放苗后即使投饵鲤鱼苗在20d左右的时间内只有10g左右,出塘规格不均匀。
出处 《内蒙古农业科技》 2012年第1期102-104,共3页 Inner Mongolia Agricultural Science and Technology
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  • 1周琼.碳、氮稳定同位素技术在湖泊与河流食物网研究中的应用[D].武汉:中国科学院水生生物研究所,2009.
  • 2Hobson K A, Welch H E, Determination of trophic relationships within a high Arctic marine food web using δ13C and δ15Nanalysis [J]. Marine Ecology Progress Series, 1992,84(1):9-18.
  • 3Mateo M A, Serrano O, Serrano L, et al. Effects of sample preparation on stable isotope ratios of carbon and nitrogen in marine invertebrates: implications for food web studies using stable isotopes [J]. Oeeologia, 2008,157(1):105-115.
  • 4Fry B, Sherr E B. δ13C Measurements as indicators of carbon flow in marine and freshwater ecosystems [J]. Contributions in Marine Science, 1984,27(8):13-47.
  • 5Minagawa M, Wada E. Stepwise enrichment of 15N along food chains: further evidence and the relation between 15N and animal age [J]. Geochimica et Cosmochimiea Acta, 1984,48(5):1135- 1140.
  • 6Kaehler S, Pakhomov E A, McQuaid C D. Trophic structure of the marine food web at the Prince Edward Islands (Southern Ocean) determined by δ13C and δ15N analysis [J]. Marine Ecology Progress Series, 2000,208(8): 13-20.
  • 7Pinnegar J K, Polunin N V C. Contributions of stable isotope data to elucidating food webs of Mediterranean rocky littoral fishes [J]. Oecologia, 2000,122(3):399-409.
  • 8Vlzzini S M, Mazzola A. Stable carbon and nitrogen ratios in the sand smelt from a Mediterranean coastal area: feeding habits and effect of season and size on feeding strategy [J]. Journal of Fish Biology, 2002,60(6): 1498-1510.
  • 9Li Z Q, Zhang M, Cao T, et al. Variation in stable isotope signatures of the submersed macrophyte Vallisneria natans collected from several shallow lakes in China [J]. Journal of Freshwater Ecology, 2011,26(3):429-433.
  • 10Mao Z G, Gu X H, Zeng Q, et al. Food web structure of a shallow ertrophic lake (Lake Taihu, China) assessed by stable isotope analysis[J]. Hydrobiologia, 2012,683(1): 173 - 183.

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