Laboratory experiment and mass rearing of coregonid fish fed exclusively on dry diets

Dąbrowski, Konrad; Poczyczyński, P.

doi:10.1016/0044-8486(88)90338-9

Cited by 15 publications

(7 citation statements)

References 8 publications

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“…If disease outbreak after six, respectively seven weeks was facilitated by cold-water conditions remains unclear, as disease outbreaks have been reported under higher temperatures as well (Dabrowski et al, 1984;Lucynski et al, 1986;Dabrowski & Poczyczynski, 1988). But it is noticeable that disease outbreak was recognized in those studies exclusively at higher water temperatures (> 8 °C).…”

Section: Water Conditionsmentioning

confidence: 89%

“…To our knowledge, no previous study has investigated dedicated cold-water feed types and compared their performance to regular feed types. Most previous studies on whitefish compared feed types of vastly varying ingredients in experimental feeds (Luczynski et al, 1986;Dabrowski & Poczyczynski, 1988;Harris & Hulsman, 1991) or commercial microdiets of different manufacturers (Koskela & Eskelinen, 1992, Rojas-Beltran et al, 1992, Rissanen, 1995. In those cases, the observed differences in performance of whitefish larvae might be of little surprise, however, our results provide evidence that one dedicated cold-water microdiet ("AgloNorse® Extra") does not provide advantages compared to the regular product ("AgloNorse®") of the same manufacturer.…”

Section: Comparisons Of Feed Typesmentioning

confidence: 99%

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Rearing Larvae of Different Strains of Coregonus lavaretus under Cold Water Conditions: Comparison of a Special Cold-Water Line with a Standard Agglomerated Microdiet

Leithner¹,

Wanzenböck²

2015

JAS

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We studied the performance of a commercial, agglomerated larval microdiet in terms of survival, growth and feed acceptance and compared a dedicated "cold water line" of the product to the standard product involving a Baltic and an Alpine strain of whitefish. Experiments were conducted under cold water conditions < 8 °C (average 5.1 °C) for 60 days after hatching. Replicate tanks of 400 and 200 liter volume received filtered lake water disinfected with ozone and UV light and were stocked with 15 larvae per liter. Daily rations of 4% body weight were manually delivered in six portions every two hours and group samples were taken weekly to determine length, weight and feed acceptance. Dead larvae were removed and counted daily. Before our experiment was influenced by an outbreak of an unknown disease during the last two weeks, we observed similar growth, survival and feed acceptance for each of the feed types with low variability within each of the two strains. Strains showed characteristic differences in growth and survival related to lower feed acceptance during the first four weeks of the Alpine strain. We concluded that the specific cold water line of the commercial microdiet did not provide any advantage compared to the standard product under low temperature conditions. However, differential performance might exist under different temperature regimes.

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Section: Water Conditionsmentioning

confidence: 89%

Section: Comparisons Of Feed Typesmentioning

confidence: 99%

Rearing Larvae of Different Strains of Coregonus lavaretus under Cold Water Conditions: Comparison of a Special Cold-Water Line with a Standard Agglomerated Microdiet

Leithner¹,

Wanzenböck²

2015

JAS

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“…While in strain 2 a strong effect had been seen, in strain 1 it was hardly observed. If disease outbreak was associated with the cold‐water conditions remains unclear as these also appears at higher water temperatures (Dabrowski & Poczyczynski, ; Dabrowski et al., ; Luczynski et al., ). As a next logical step, an experiment with a special cold‐water line of an agglomerated commercial microdiet should be performed with larval whitefish.…”

Section: Discussionmentioning

confidence: 99%

Suitability of two agglomerated commercial microdiets for rearing larvae of different strains of Coregonus lavaretus under cold-water conditions

Esmaeilzadeh‐Leithner

Wanzenböck

2017

Aquacult Nutr

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The suitability of two agglomerated commercial microdiets ("Gemma micro ® " and "O.range ® " from now on called diet A and diet B) as a starter feed was tested on larvae of European whitefish (Coregonus lavaretus). Two strains (Baltic and Alpine) were tested in a 60-day experiment under ambient cold-water conditions (average 7.6 ± 1.9°C). The experiment was carried out in 400-L PVC tanks with a stocking density of 5,000 larvae per tank. Samples were removed weekly to determine growth, survival and feed acceptance, in addition to water quality. Striking differences between the feeds and different strains were observed. For one diet, growth and survival were distinctively higher in strain 1 compared to strain 2, where it was invariably low with both diets. For the second diet, growth and survival in strain 1 were also low and similar to strain 2. Feed acceptance in strain 1 was found higher compared to strain 2.Final weights were significantly different with strain 1 being heavier; however, in terms of relative growth rate, no differences between strains were found. Strong differences in the performance in terms of growth, survival and feed acceptance of different strains of European whitefish became apparent. Furthermore, the rearing of larvae exclusively on standard agglomerated commercial microdiets under cold-water conditions is possible, but not every microdiet is suitable. K E Y W O R D SEuropean whitefish, feed acceptance, growth, Survival

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“…We have not encountered many cited references of this rotifer used in Coregonus genus production, although there have been many well‐known and successful production of this fish with commercial dry feed for a long time (Rösch & Appelbaum 1985; Luczynski et al. 1986; Dabrowski & Poczyczynski 1988; Ruohonen et al. 2003).…”

Section: Introductionmentioning

confidence: 99%

“…The rotifer Brachionus plicatilis was regarded as a highly suitable live feed for fry of many marine and fresh water fish (Juario et al 1984;Cruz & James 1989;Hagiwara et al 2001aHagiwara et al ,b, 2007Kotani et al 2006). We have not encountered many cited references of this rotifer used in Coregonus genus production, although there have been many well-known and successful production of this fish with commercial dry feed for a long time (Ro¨sch & Appelbaum 1985;Luczynski et al 1986; Dabrowski & Poczyczynski 1988;Ruohonen et al 2003).…”

mentioning

confidence: 99%

Comparison of rotiferBrachionus plicatilisas a choice of live feed with dry feed in rearingCoregonus lavaretusfry

Mahmoudzadeh

Ahmadi

Shamsaei

2009

Aquaculture Nutrition

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This experiment, designed for the first time in the Middle East region to sustain Coregonus lavaretus production, examined the efficacy of a live organism (Brachionus plicatilis), an artificial diet (48% crude protein) and a mixed feed for the first 3 month of rearing fry. Nine rearing cages were floated on the surface of a natural pond supplied with hyporheic‐zone river water, each containing 150 numbers of white fish fry, where they were treated with each of the three diets in triplicates. The fry were fed eight times daily starting at the onset of exogenous feeding. Results showed that fry utilized live organisms more efficiently than the artificial and mixed diets. Rotifer‐fed group consistently showed higher growth rate during the entire experiment. Length increment (29.6 mm), weight gain (572.3 mg) after 12 weeks of feeding were higher (P < 0.05) in this group. Also, their mean weekly specific growth rate (4.97% day−1) was the highest and feed conversion rate (2.97) was the lowest among all treatments. Survival rates of the fry declined from 75% to 61.4%, from 74.3 to 45.8% and from 72.7 to 54.5% for live feed, mixed diet and artificial diet, respectively.

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Laboratory experiment and mass rearing of coregonid fish fed exclusively on dry diets

Cited by 15 publications

References 8 publications

Rearing Larvae of Different Strains of Coregonus lavaretus under Cold Water Conditions: Comparison of a Special Cold-Water Line with a Standard Agglomerated Microdiet

Rearing Larvae of Different Strains of Coregonus lavaretus under Cold Water Conditions: Comparison of a Special Cold-Water Line with a Standard Agglomerated Microdiet

Suitability of two agglomerated commercial microdiets for rearing larvae of different strains of Coregonus lavaretus under cold-water conditions

Comparison of rotiferBrachionus plicatilisas a choice of live feed with dry feed in rearingCoregonus lavaretusfry

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