摘要
为评估不同种养密度和投喂频率对鱼菜共生系统中鲫鱼生长及品质的影响,建立温室基质栽培式鱼菜共生系统(鲫鱼+生菜),设置种植密度分别为28(A1)、42(A2)、56(A3)株·m^(-2);养殖密度分别为8(B1)、10(B2)、12(B3)kg·m^(-2);饲料投喂频率分别为1(C1)、2(C2)、3(C3)次·d^(-1),以明确鱼菜共生系统下种养密度和投喂频率的最优组合方案。结果表明,试验期间,各处理水质稳定,鲫鱼各项生长指标均有不同增长。养殖密度对鲫鱼增重率、特定增长率及饲料系数有显著影响,以A2B1C2处理最优;投喂频率和种植密度对鲫鱼增重量、蛋白质效率有显著影响,其中,A1B3C3处理最高,增重量和蛋白质效率分别为303.56 g、3.87;以2次·d^(-1)的频率投喂时鲫鱼水分含量最高;不同处理对鲫鱼肥满度、粗蛋白质、粗脂肪等肌肉成分无显著影响。综上所述,鱼菜共生系统中生菜种植密度为42株·m^(-2)、鲫鱼养殖密度和投喂频率分别为8 kg·m^(-2)、2次·d^(-1)时,鲫鱼生长及品质均较好。
In order to evaluate the effects of planting densities and feeding frequencies on the growth and quality of crucian carp in the aquaponics system,an experimental aquaponics system(crucian carp+lettuce) based on substrate cultivation was set up in the greenhouse. The planting densities of lettuce were 28(A1),42(A2)and 56(A3)plants·m^(-2),the breeding densities of crucian carp were 8(B1),10(B2)and 12(B3)kg·m^(-3) with the feeding frequency of 1(C1),2(C2),3(C3)meal·d^(-1). The growth and quality of crucian carp were determined for clarifying the optimal combination of planting density and feeding frequency under the aquaponics system. The results showed that the quality of water in each treatment was stable during the test period,and the growth indexes of crucian carp increased. The feeding density had significant effects on the weight gain rate,specific growth rate and feed coefficient of crucian carp,and A2B1C2 treatment was the best. The planting density and feeding frequency had significant effect on weight gain and protein efficiency,and A1B3C3 treatment was the highest with weight gain 303.56 g and protein efficiency 3.87,respectively. The water content of crucian carp was the highest when feeding frequency was 2 meal·d^(-1). There were no significant effects on fatness,crude protein,crude fat and other muscle components of crucian carp. In conclusion,the growth performance and quality of the crucian carp were optimal with planting density 42 plants·m^(-2),breeding density 8 kg·m^(-3) and feeding frequency 2 meal·d^(-1).
作者
刘星
王继涛
虎治军
刘艳
穆晓国
张海军
张达林
安磊
叶林
LIU Xing;WANG Jitao;HU Zhijun;LIU Yan;MU Xiaoguo;ZHANG Haijun;ZHANG Dalin;AN Lei;YE Lin(College of Agriculture,Ningxia University,Yinchuan 750021)
出处
《中国农业科技导报》
CAS
CSCD
北大核心
2022年第1期192-201,共10页
Journal of Agricultural Science and Technology
基金
宁夏回族自治区重点研发计划项目(2018BBF02009)。
关键词
鱼菜共生系统
种植密度
养殖密度
投喂频率
生长
品质
aquaponics system
planting density
breeding density
feeding frequency
growth
quality
