The eco-nutrition requirements for dietary protein and its rhomb characteristics in juvenile turbot (Scophthalmus maximus L.)
We evaluated the dietary protein requirements of juvenile turbot (Scophthalmus maximus L.) and their effects on aquatic quality. Five experimental diets were formulated containing 450, 480, 500, 520, and 540 g/kg. Each diet was randomly assigned to triplicate groups of juvenile turbot (mean initial...
Published in: | Chinese Journal of Oceanology and Limnology |
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Online Access: | http://ir.qdio.ac.cn/handle/337002/12050 https://doi.org/10.1007/s00343-011-0072-0 |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/12049 2023-05-15T18:15:43+02:00 The eco-nutrition requirements for dietary protein and its rhomb characteristics in juvenile turbot (Scophthalmus maximus L.) Li Yong Jiang Keyong Sun Guoxiang Gao Tingting Zhou Bangwei 2011-09-01 http://ir.qdio.ac.cn/handle/337002/12050 https://doi.org/10.1007/s00343-011-0072-0 英语 eng CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY Li Yong; Jiang Keyong; Sun Guoxiang; Gao Tingting; Zhou Bangwei.The eco-nutrition requirements for dietary protein and its rhomb characteristics in juvenile turbot (Scophthalmus maximus L.),CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2011,29(5):1002-1008 http://ir.qdio.ac.cn/handle/337002/12050 doi:10.1007/s00343-011-0072-0 Eco-nutrition Requirement Rhomb Characteristics Protein Aquatic Quality Digestion Turbot Marine & Freshwater Biology Oceanography Article 期刊论文 2011 ftchinacasciocas https://doi.org/10.1007/s00343-011-0072-0 2022-06-27T05:34:17Z We evaluated the dietary protein requirements of juvenile turbot (Scophthalmus maximus L.) and their effects on aquatic quality. Five experimental diets were formulated containing 450, 480, 500, 520, and 540 g/kg. Each diet was randomly assigned to triplicate groups of juvenile turbot (mean initial body weight 34.5 +/- 5.5 g) for 88 d. Both the weight gain ratio and feed efficiency increased with increasing dietary protein up to 500 g/kg, but no further improvement was detected when dietary protein levels were > 500 g/kg. Protein intake and digestion increased with protein levels, while fecal nitrogen and nitrogen content in seawater increased only when dietary protein exceeded 500 g/kg. Protein digestibility was highest at intermediate dietary protein levels. Chemical oxygen demand, nitrite-nitrogen (NO (2) (-) -N) and phosphatic-phosphor (PO (4) (3-) -P) levels increased in the rearing water as dietary protein levels increased. The optimum eco-nutrition level of dietary protein for juvenile turbot was 500 g/kg under the current experimental conditions. The diets containing 540 and 500 g/kg protein had similar growth rates and feed conversion ratios, but levels of ammonia (NH (4) (+) ) and nitrogen were considerably higher in the water and feces, respectively, at the higher level of dietary protein. The difference in the pattern of change between body weight gain and ammonia concentration in water with increasing dietary protein is described by rhomb characteristics. We evaluated the dietary protein requirements of juvenile turbot (Scophthalmus maximus L.) and their effects on aquatic quality. Five experimental diets were formulated containing 450, 480, 500, 520, and 540 g/kg. Each diet was randomly assigned to triplicate groups of juvenile turbot (mean initial body weight 34.5 +/- 5.5 g) for 88 d. Both the weight gain ratio and feed efficiency increased with increasing dietary protein up to 500 g/kg, but no further improvement was detected when dietary protein levels were > 500 g/kg. Protein intake and ... Article in Journal/Newspaper Scophthalmus maximus Turbot Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Chinese Journal of Oceanology and Limnology 29 5 1002 1008 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Eco-nutrition Requirement Rhomb Characteristics Protein Aquatic Quality Digestion Turbot Marine & Freshwater Biology Oceanography |
spellingShingle |
Eco-nutrition Requirement Rhomb Characteristics Protein Aquatic Quality Digestion Turbot Marine & Freshwater Biology Oceanography Li Yong Jiang Keyong Sun Guoxiang Gao Tingting Zhou Bangwei The eco-nutrition requirements for dietary protein and its rhomb characteristics in juvenile turbot (Scophthalmus maximus L.) |
topic_facet |
Eco-nutrition Requirement Rhomb Characteristics Protein Aquatic Quality Digestion Turbot Marine & Freshwater Biology Oceanography |
description |
We evaluated the dietary protein requirements of juvenile turbot (Scophthalmus maximus L.) and their effects on aquatic quality. Five experimental diets were formulated containing 450, 480, 500, 520, and 540 g/kg. Each diet was randomly assigned to triplicate groups of juvenile turbot (mean initial body weight 34.5 +/- 5.5 g) for 88 d. Both the weight gain ratio and feed efficiency increased with increasing dietary protein up to 500 g/kg, but no further improvement was detected when dietary protein levels were > 500 g/kg. Protein intake and digestion increased with protein levels, while fecal nitrogen and nitrogen content in seawater increased only when dietary protein exceeded 500 g/kg. Protein digestibility was highest at intermediate dietary protein levels. Chemical oxygen demand, nitrite-nitrogen (NO (2) (-) -N) and phosphatic-phosphor (PO (4) (3-) -P) levels increased in the rearing water as dietary protein levels increased. The optimum eco-nutrition level of dietary protein for juvenile turbot was 500 g/kg under the current experimental conditions. The diets containing 540 and 500 g/kg protein had similar growth rates and feed conversion ratios, but levels of ammonia (NH (4) (+) ) and nitrogen were considerably higher in the water and feces, respectively, at the higher level of dietary protein. The difference in the pattern of change between body weight gain and ammonia concentration in water with increasing dietary protein is described by rhomb characteristics. We evaluated the dietary protein requirements of juvenile turbot (Scophthalmus maximus L.) and their effects on aquatic quality. Five experimental diets were formulated containing 450, 480, 500, 520, and 540 g/kg. Each diet was randomly assigned to triplicate groups of juvenile turbot (mean initial body weight 34.5 +/- 5.5 g) for 88 d. Both the weight gain ratio and feed efficiency increased with increasing dietary protein up to 500 g/kg, but no further improvement was detected when dietary protein levels were > 500 g/kg. Protein intake and ... |
format |
Article in Journal/Newspaper |
author |
Li Yong Jiang Keyong Sun Guoxiang Gao Tingting Zhou Bangwei |
author_facet |
Li Yong Jiang Keyong Sun Guoxiang Gao Tingting Zhou Bangwei |
author_sort |
Li Yong |
title |
The eco-nutrition requirements for dietary protein and its rhomb characteristics in juvenile turbot (Scophthalmus maximus L.) |
title_short |
The eco-nutrition requirements for dietary protein and its rhomb characteristics in juvenile turbot (Scophthalmus maximus L.) |
title_full |
The eco-nutrition requirements for dietary protein and its rhomb characteristics in juvenile turbot (Scophthalmus maximus L.) |
title_fullStr |
The eco-nutrition requirements for dietary protein and its rhomb characteristics in juvenile turbot (Scophthalmus maximus L.) |
title_full_unstemmed |
The eco-nutrition requirements for dietary protein and its rhomb characteristics in juvenile turbot (Scophthalmus maximus L.) |
title_sort |
eco-nutrition requirements for dietary protein and its rhomb characteristics in juvenile turbot (scophthalmus maximus l.) |
publishDate |
2011 |
url |
http://ir.qdio.ac.cn/handle/337002/12050 https://doi.org/10.1007/s00343-011-0072-0 |
genre |
Scophthalmus maximus Turbot |
genre_facet |
Scophthalmus maximus Turbot |
op_relation |
CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY Li Yong; Jiang Keyong; Sun Guoxiang; Gao Tingting; Zhou Bangwei.The eco-nutrition requirements for dietary protein and its rhomb characteristics in juvenile turbot (Scophthalmus maximus L.),CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2011,29(5):1002-1008 http://ir.qdio.ac.cn/handle/337002/12050 doi:10.1007/s00343-011-0072-0 |
op_doi |
https://doi.org/10.1007/s00343-011-0072-0 |
container_title |
Chinese Journal of Oceanology and Limnology |
container_volume |
29 |
container_issue |
5 |
container_start_page |
1002 |
op_container_end_page |
1008 |
_version_ |
1766188916773224448 |