Effects of diet and body size on phosphorus utilization of Liza haematocheila T. & S.

doi:10.1007/s00343-008-0157-6

	Effects of diet and body size on phosphorus utilization of Liza haematocheila T. & S.
	Kang Bin 1,2; Xian Weiwei 1; Wu Yunfei 2
	2008-05-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	0254-4059
卷号	26 期号:2 页码:157-161
文章类型	Article
摘要	A 21-d laboratory experiment was conducted to study, the phosphorus (P) utilization of two different diets by redlip mullet Liza haematocheila T. & S. Sand-filtered water in salinity 30 and temperature 25 degrees C was used. Twenty-nine fish individuals were divided into three groups: 11 to group 1 (G1) fed on diet 1, 11 to group 2 (G2) fed on diet 2, and 7 to contrast group. Diet 1 was a commercial feed, more valuable in nutrition than diet 2 that similar to natural detritus. The results show the intake phosphorus (IP) of G1 was significantly higher than that of G2, and both increased linearly with body size at a certain amount of diet. The retention phosphorus (RP) in fish of G1 was lower than G2. The relationship between retention phosphorus and body size was positive and stronger in G2. Significant difference in faecal phosphorus (FP) was found between G1 and G2. Body size significantly impacted the excretion phosphorus (EP) in G1 but G2. The loss of intake phosphor-us in G1 was 10.83-20.27 mg per g fish weight gain, higher than that in G2 for 6.63-9.56. Of the phosphor-us, about 10% was allocated into growth, 50% in faeces, and the rest lost in excretion. The main part of phosphorus was lost in faeces but excretion. The phosphorus budget of the fish could be described as 100IP = 7.40RP + 47.39FP + 36.63EP (Diet 1) or 100IP = 11.93RP + 56.64FP + 21.76EP (Diet 2).; A 21-d laboratory experiment was conducted to study, the phosphorus (P) utilization of two different diets by redlip mullet Liza haematocheila T. & S. Sand-filtered water in salinity 30 and temperature 25 degrees C was used. Twenty-nine fish individuals were divided into three groups: 11 to group 1 (G1) fed on diet 1, 11 to group 2 (G2) fed on diet 2, and 7 to contrast group. Diet 1 was a commercial feed, more valuable in nutrition than diet 2 that similar to natural detritus. The results show the intake phosphorus (IP) of G1 was significantly higher than that of G2, and both increased linearly with body size at a certain amount of diet. The retention phosphorus (RP) in fish of G1 was lower than G2. The relationship between retention phosphorus and body size was positive and stronger in G2. Significant difference in faecal phosphorus (FP) was found between G1 and G2. Body size significantly impacted the excretion phosphorus (EP) in G1 but G2. The loss of intake phosphor-us in G1 was 10.83-20.27 mg per g fish weight gain, higher than that in G2 for 6.63-9.56. Of the phosphor-us, about 10% was allocated into growth, 50% in faeces, and the rest lost in excretion. The main part of phosphorus was lost in faeces but excretion. The phosphorus budget of the fish could be described as 100IP = 7.40RP + 47.39FP + 36.63EP (Diet 1) or 100IP = 11.93RP + 56.64FP + 21.76EP (Diet 2).
关键词	Liza HaemaT.cheila T. & S. Phosphorus Diet Body Size
学科领域	Limnology ; Oceanography
DOI	10.1007/s00343-008-0157-6
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000256416000006
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/5352
专题	海洋生态与环境科学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Ocean Univ China, Fishery Coll, Qingdao 266003, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Kang Bin,Xian Weiwei,Wu Yunfei. Effects of diet and body size on phosphorus utilization of Liza haematocheila T. & S.[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2008,26(2):157-161.
APA	Kang Bin,Xian Weiwei,&Wu Yunfei.(2008).Effects of diet and body size on phosphorus utilization of Liza haematocheila T. & S..CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,26(2),157-161.
MLA	Kang Bin,et al."Effects of diet and body size on phosphorus utilization of Liza haematocheila T. & S.".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 26.2(2008):157-161.

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