Effects of lecithin on growth and hematological indices in juveniles of Siberian sturgeon (Acipenser baeri Brandet 1869)
This study was carried out to evaluate the effects of dietary lecithin on growth performance and hematological indices in juveniles of Siberian sturgeon (Acipenser baeri). Fish with initial average weight of 32.9±0.3 grams were fed five isoproteic and isolipidic formulated diets with different soybean lecithin levels including 0, 2.5, 5, 7.5 and 10% in triplicate groups for 8 weeks. Results showed that lecithin supplementation to 7.5% significantly increased some growth indices such as body weight increase (BWI), specific growth rate (SGR), feed conversion ratio (FCR ) final weight (Wf), condition factor (CF) and protein efficiency ratio (PER). Also, increasing dietary lecithin to the level of 10% significantly decreased growth indices. According to the results of hematological assays, hemoglobin (Hb) in treatments of 5% and 7.5% in comparison to other treatments had higher value. Hematocrit (Hct) in fish fed with 7.5% lecithin was higher than those fed with 0 and 2.5% lecithin in the diets. Other hematological indices such as WBC, RBC, MCV, MCH and MCHC showed no significant differences among the treatments. In conclusion, the results of this study indicated that Siberian sturgeon juveniles have a relatively moderate lecithin requirement (between 5 and 7.5 percent of the diet) and these levels of lecithin in diet induces increase of growth performance and improves health status of this species.
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Format: | Journal Contribution biblioteca |
Language: | Persian |
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2011
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Subjects: | Acipenser baerii, Diet, Food items, Siberian sturgeon, Hematology, Growth, Juvenile, |
Online Access: | http://hdl.handle.net/1834/10615 |
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dig-aquadocs-1834-106152021-05-19T06:44:21Z Effects of lecithin on growth and hematological indices in juveniles of Siberian sturgeon (Acipenser baeri Brandet 1869) Najafipour Moghadam, E. Falahatkar, B. Kalbassi, M.R. Acipenser baerii Diet Food items Siberian sturgeon Hematology Growth Juvenile This study was carried out to evaluate the effects of dietary lecithin on growth performance and hematological indices in juveniles of Siberian sturgeon (Acipenser baeri). Fish with initial average weight of 32.9±0.3 grams were fed five isoproteic and isolipidic formulated diets with different soybean lecithin levels including 0, 2.5, 5, 7.5 and 10% in triplicate groups for 8 weeks. Results showed that lecithin supplementation to 7.5% significantly increased some growth indices such as body weight increase (BWI), specific growth rate (SGR), feed conversion ratio (FCR ) final weight (Wf), condition factor (CF) and protein efficiency ratio (PER). Also, increasing dietary lecithin to the level of 10% significantly decreased growth indices. According to the results of hematological assays, hemoglobin (Hb) in treatments of 5% and 7.5% in comparison to other treatments had higher value. Hematocrit (Hct) in fish fed with 7.5% lecithin was higher than those fed with 0 and 2.5% lecithin in the diets. Other hematological indices such as WBC, RBC, MCV, MCH and MCHC showed no significant differences among the treatments. In conclusion, the results of this study indicated that Siberian sturgeon juveniles have a relatively moderate lecithin requirement (between 5 and 7.5 percent of the diet) and these levels of lecithin in diet induces increase of growth performance and improves health status of this species. Published 2017-11-28T16:32:33Z 2017-11-28T16:32:33Z 2011 Journal Contribution Refereed 1026-1354 http://hdl.handle.net/1834/10615 fa pp.143-154 Iran |
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Acipenser baerii Diet Food items Siberian sturgeon Hematology Growth Juvenile Acipenser baerii Diet Food items Siberian sturgeon Hematology Growth Juvenile |
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Acipenser baerii Diet Food items Siberian sturgeon Hematology Growth Juvenile Acipenser baerii Diet Food items Siberian sturgeon Hematology Growth Juvenile Najafipour Moghadam, E. Falahatkar, B. Kalbassi, M.R. Effects of lecithin on growth and hematological indices in juveniles of Siberian sturgeon (Acipenser baeri Brandet 1869) |
description |
This study was carried out to evaluate the effects of dietary lecithin on growth performance
and hematological indices in juveniles of Siberian sturgeon (Acipenser baeri). Fish with initial
average weight of 32.9±0.3 grams were fed five isoproteic and isolipidic formulated diets
with different soybean lecithin levels including 0, 2.5, 5, 7.5 and 10% in triplicate groups for
8 weeks. Results showed that lecithin supplementation to 7.5% significantly increased some
growth indices such as body weight increase (BWI), specific growth rate (SGR), feed
conversion ratio (FCR ) final weight (Wf), condition factor (CF) and protein efficiency ratio
(PER). Also, increasing dietary lecithin to the level of 10% significantly decreased growth
indices. According to the results of hematological assays, hemoglobin (Hb) in treatments of
5% and 7.5% in comparison to other treatments had higher value. Hematocrit (Hct) in fish fed
with 7.5% lecithin was higher than those fed with 0 and 2.5% lecithin in the diets. Other
hematological indices such as WBC, RBC, MCV, MCH and MCHC showed no significant
differences among the treatments. In conclusion, the results of this study indicated that
Siberian sturgeon juveniles have a relatively moderate lecithin requirement (between 5 and
7.5 percent of the diet) and these levels of lecithin in diet induces increase of growth
performance and improves health status of this species. |
format |
Journal Contribution |
topic_facet |
Acipenser baerii Diet Food items Siberian sturgeon Hematology Growth Juvenile |
author |
Najafipour Moghadam, E. Falahatkar, B. Kalbassi, M.R. |
author_facet |
Najafipour Moghadam, E. Falahatkar, B. Kalbassi, M.R. |
author_sort |
Najafipour Moghadam, E. |
title |
Effects of lecithin on growth and hematological indices in juveniles of Siberian sturgeon (Acipenser baeri Brandet 1869) |
title_short |
Effects of lecithin on growth and hematological indices in juveniles of Siberian sturgeon (Acipenser baeri Brandet 1869) |
title_full |
Effects of lecithin on growth and hematological indices in juveniles of Siberian sturgeon (Acipenser baeri Brandet 1869) |
title_fullStr |
Effects of lecithin on growth and hematological indices in juveniles of Siberian sturgeon (Acipenser baeri Brandet 1869) |
title_full_unstemmed |
Effects of lecithin on growth and hematological indices in juveniles of Siberian sturgeon (Acipenser baeri Brandet 1869) |
title_sort |
effects of lecithin on growth and hematological indices in juveniles of siberian sturgeon (acipenser baeri brandet 1869) |
publishDate |
2011 |
url |
http://hdl.handle.net/1834/10615 |
work_keys_str_mv |
AT najafipourmoghadame effectsoflecithinongrowthandhematologicalindicesinjuvenilesofsiberiansturgeonacipenserbaeribrandet1869 AT falahatkarb effectsoflecithinongrowthandhematologicalindicesinjuvenilesofsiberiansturgeonacipenserbaeribrandet1869 AT kalbassimr effectsoflecithinongrowthandhematologicalindicesinjuvenilesofsiberiansturgeonacipenserbaeribrandet1869 |
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