BIOLOGICAL EVALUATION OF FROZEN ZOOPLANKTON AS FOOD FOR MILKFISH (CHANOS-CHANOS) FRY

被引:5
作者
VILLEGAS, CT
LUMASAG, GL
机构
[1] Aquaculture Department, Southeast Asian Fisheries Development Center (SEAFDEC), Tigbauan, Iloilo
[2] Inland Fisheries Research and Development, School of Marine Fisheries and Technology, Mindanao State University, Misamis Oriental, Naawan
来源
JOURNAL OF APPLIED ICHTHYOLOGY-ZEITSCHRIFT FUR ANGEWANDTE ICHTHYOLOGIE | 1991年 / 7卷 / 02期
关键词
D O I
10.1111/j.1439-0426.1991.tb00511.x
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
Milkfish fry with an average standard length and weight of 13.88 mm and 3.95 mg, respectively, were reared for 30 days using live and frozen Moina macrocopa and Brachionus plicatilis at feeding densities of 10-20 individuals per ml. Growth, survival and yield were used as indicators of the overall performances of the various treatment groups. Fry fed live M. macrocopa showed gains (both length and weight), growth and survival rates and yields significantly higher than fry fed with other treatment groups (P < 0.05). However, significant reductions in growth and survival rates resulted when fry were fed frozen M. macrocopa. On the other hand, there were no significant differences in growth and survival rates (P > 0.05) in fry fed live or frozen B. plicatilis. The results of the current study showed that although milkfish fry could be grown successfully using B. plicatilis, feeding with live Moina significantly improved growth, survival rate and yield (P < 0.05). Frozen Moina was found to be unsuitable as a feed for rearing milkfish fry because it reduced growth rates and increased mortality. Comparisons between live and frozen rotifers have proven the suitability of frozen rotifers as feed for rearing milkfish fry. By freezing surplus rotifers this would permit short term storage in anticipation of high hatchery demand and overcome any unpredictable failures with live cultures.
引用
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页码:65 / 71
页数:7
相关论文
共 24 条
[1]  
Official Methods of Analysis, (1984)
[2]  
Beck A.C., Laboratory culture and feeding of the Atlantic silverside, Menidia menidia, Cultivation of fish fry and its live food, pp. 63-85, (1979)
[3]  
Duenas C.E., Young P.S., (1983)
[4]  
Fontaine C.T., Revera D.B., The mass culture of the rotifer Brachionus plicatilis, for use as foodstuff in aquaculture, Proc. World Maricult. Soc., 11, pp. 211-218, (1980)
[5]  
Gatesoupe F.J., Luquet P., Practical diet for mass culture of the rotifer Brachionus plicatilis: application to larval rearing of sea bass, Dicentrarchus labrax, Aquaculture, 22, pp. 149-163, (1981)
[6]  
Grabner M., Weiser W., Lackner R., The suitability of frozen and freeze‐dried zooplankton as food for fish larvae: a biochemical test program, Aquaculture, 26, pp. 85-94, (1981)
[7]  
James C.M., Dias P., Salman A.E., The use of marine yeast (Candida sp.) and baker's yeast (Saccharomyces cerevisiae) in combination with Cblorella sp. for mass culture of the rotifer, Brachionus plicatilis, Hydrobiologia, 147, pp. 263-268, (1987)
[8]  
Juario J.V., Duray M., Duray V.M., Nacario J.F., Almendras J.M.E., Induced breeding and larval rearing experiment with milkfish Chanos chanos (Forsskal) in the Philippines, Aquaculture, 36, pp. 61-70, (1984)
[9]  
Kates M., Techniques in Lipidiology: Isolation, analysis and identification of lipids, pp. 347-353, (1972)
[10]  
Lubzens E., Rothbard S., Blumenthal A., Kolsdary G., Perry B., Olend B., Wax Y., Farbstein H., Possible use of Brachionus plicatilis (O, F. Muller) as food for freshwater cyprinid larvae. Aquaculture, 60, pp. 143-165, (1987)