Comparison of Muscle Nutritional Components of Micropterus salmoides from 2 Populations Under Different Culture Modes

doi:10.11924/j.issn.1000-6850.casb2021-0554

Abstract

Abstract:

In order to evaluate the effects of different culture modes on muscle nutritional components of Micropterus salmoides from 2 genetic background populations comprehensively, and to optimize breeding combination and guide consumption, 2 progeny populations of Micropterus salmoides were selected as experimental materials, combined with 2 breeding modes, and then 4 experimental groups were set up. After 8 months of culture, the nutritional components in the back muscle of M. salmoides of each experimental group were detected and analyzed according to the national standard method. The results showed that, the muscle water content of group C was significantly lower than that of other groups (P<0.05), and the crude protein content of group C was significantly higher than that of other groups (P<0.05). ΣTAA, ΣEAA, ΣNEAA, ΣHEAA, ΣDAA and ΣEAA/ΣNEAA of group B were significantly higher than those of other groups (P<0.05). There was no significant difference in the ΣEAA/ΣTAA values among group B, C and D (P>0.05), but the ΣEAA/ΣTAA value of group B was significantly higher than that of group A (P<0.05). There was no significant difference in the ΣDAA/ΣTAA values among all the groups (P>0.05). The content data of 16 fatty acids, 13 fatty acids, 13 fatty acids and 12 fatty acids were obtained from group A, B, C and D respectively; the contents of SFA, MUFA, EPA+DHA, PUFA, UPA and FA in group B were significantly higher than those in other experimental groups (P<0.05), only UFA/SFA in group B was significantly lower than that in group C and D (P<0.05), but there was no significant difference between group B and A (P>0.05). The content of K was the highest among the four macroelements detected in the experimental groups, in addition, it was significantly higher in group B (4239.33 mg/kg) than that in other groups (P<0.05); the content of Na was second only to that of K, and it was significantly lower in group B (306.87 mg/kg) than that in other groups (P<0.05). In summary, the experiment showed that the fish products obtained from the YL3 breeding in flume recirculating aquaculture mode had a certain advantage of protein accumulation; the fish products obtained from the TL breeding in traditional pond mode had higher content of amino acids and fatty acids, and relatively high ratio of K/Na.

Key words: Micropterus salmoides, aquaculture mode, common nutritional components, amino acids, fatty acids, mineral elements

CLC Number:

S965

SONG Limin, JIANG Jufeng, WANG Yu, XU Xiaoli, DING Ziyuan, HAO Jun, XU Lintong. Comparison of Muscle Nutritional Components of Micropterus salmoides from 2 Populations Under Different Culture Modes[J]. Chinese Agricultural Science Bulletin, 2022, 38(14): 118-123.

Figures/Tables 5

References 33

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组别	遗传背景	养殖环境	放养密度/ (ind/m³)	养殖水源	温度/ ℃	投饵方式	样本重量/ g
A	YL3	2667 m²传统池塘	1.87	天津八米河河水	18~32	早晚2次八成饱投喂	497.70±107.32
B	TL	2667 m²传统池塘	1.87
C	YL3	20000 m²池塘内置4个100 m²循环水槽	15.00
D	TL	20000 m²池塘内置4个100 m²循环水槽	15.00

组别	遗传背景	养殖环境	放养密度/ (ind/m³)	养殖水源	温度/ ℃	投饵方式	样本重量/ g
A	YL3	2667 m²传统池塘	1.87	天津八米河河水	18~32	早晚2次八成饱投喂	497.70±107.32
B	TL	2667 m²传统池塘	1.87
C	YL3	20000 m²池塘内置4个100 m²循环水槽	15.00
D	TL	20000 m²池塘内置4个100 m²循环水槽	15.00

项目	A	B	C	D
水分	77.00±1.50a	76.10±0.60a	70.57±0.55b	76.70±0.90a
粗蛋白	19.70±0.20c	20.20±0.20b	20.80±0.20a	19.17±0.15d
粗脂肪	2.23±0.06b	2.50±0.10a	2.60±0.10a	1.83±0.06c
灰分	1.10±0.01b	1.18±0.02a	1.17±0.03a	1.17±0.03a

项目	A	B	C	D
水分	77.00±1.50a	76.10±0.60a	70.57±0.55b	76.70±0.90a
粗蛋白	19.70±0.20c	20.20±0.20b	20.80±0.20a	19.17±0.15d
粗脂肪	2.23±0.06b	2.50±0.10a	2.60±0.10a	1.83±0.06c
灰分	1.10±0.01b	1.18±0.02a	1.17±0.03a	1.17±0.03a

类别	氨基酸种类	氨基酸含量
类别	氨基酸种类	A	B	C	D
EAA	Ile	0.70±0.01c	0.84±0.01a	0.81±0.01b	0.82±0.01b
	Leu	1.29±0.00d	1.45±0.02a	1.42±0.01b	1.39±0.01c
	Lys	1.53±0.00d	1.74±0.02a	1.70±0.02b	1.66±0.02c
	Thr	0.75±0.00c	0.81±0.01a	0.80±0.01b	0.80±0.01b
	Val	0.76±0.01c	0.91±0.01a	0.88±0.01b	0.88±0.00b
	Met	0.48±0.00c	0.63±0.01a	0.35±0.00d	0.50±0.00b
	Phe	0.69±0.00c	0.80±0.01a	0.81±0.01a	0.78±0.01b
HEAA	His	0.41±0.00b	0.46±0.01a	0.46±0.01a	0.46±0.01a
HEAA	Arg	0.95±0.00c	1.07±0.01a	0.94±0.01c	1.01±0.01b
NEAA	Asp	1.68±0.00c	1.88±0.03a	1.86±0.02ab	1.84±0.02b
	Glu	2.38±0.01c	2.58±0.03a	2.51±0.02b	2.52±0.02b
	Gly	0.77±0.00d	0.90±0.02a	0.82±0.01c	0.86±0.01b
	Ala	1.03±0.00c	1.22±0.03a	1.14±0.02b	1.14±0.01b
	Ser	0.66±0.01b	0.65±0.01b	0.62±0.01c	0.68±0.01a
	Pro	0.60±0.00c	0.66±0.01a	0.63±0.00b	0.62±0.01b
	Tyr	0.56±0.01b	0.60±0.01a	0.55±0.01bc	0.54±0.01c
其他指标	ΣTAA	15.23±0.03c	17.21±0.23a	16.29±0.14b	16.49±0.12b
	ΣEAA	6.20±0.01c	7.18±0.09a	6.67±0.06b	6.83±0.05b
	ƩNEAA	7.67±0.02c	8.49±0.13a	8.13±0.08b	8.19±0.06b
	ΣHEAA	1.36±0.00d	1.53±0.02a	1.40±0.01c	1.47±0.02b
	ΣDAA	5.86±0.01c	6.58±0.10a	6.33±0.06b	6.36±0.05b
	ΣEAA/ΣTAA	40.70±0.02b	41.73±0.55a	41.49±0.62ab	41.41±0.51ab
	ΣEAA/ΣNEAA	80.80±0.10c	84.54±0.19a	83.12±0.16b	83.32±0.07b
	ΣDAA /ΣTAA	38.47±0.02	38.26±0.56	38.85±0.60	38.56±0.49