摘要
采用Weld-2018便携式B超机(C1-9/60R凸阵探头)测量正常中华鲟(Acipenser sinensis)的鳃动频率和心动频率以及心脏大小,以查明中华鲟心脏变化特点,为超声成像技术进行中华鲟心脏疾病诊断奠定基础。实验鱼为人工养殖的年龄为0.5龄、1～5龄、7龄、9龄、11龄的中华鲟和野生成熟的中华鲟,结果表明,中华鲟心脏的周长和鱼体体长呈显著正相关(P<0.01),横切周长(y)和体长(x)的关系为y=1.689x+10.118(R2=0.825,n=42)。不同年龄中华鲟的鳃动频率随年龄的增长而下降,1龄为(104.6±8.9)次/min(n=5),野生亲鱼的为(50.5±3.6)次/min(n=8)。鳃动频率(y)和体长(x)成负线性关系y=-0.5078x+130.59(R2=0.8161,n=35,P<0.01)。温度对中华鲟的影响随着温度的升高,鳃动频率和心率上升。13℃下1龄中华鲟的鳃动频率为(74.5±6.2)次/min(n=5)、心率为(26.9±3.2)次/min(n=5);28℃的鳃动频率为(106.1±6.4)次/min(n=5)、心率为(43.4±8.44)次/min(n=5)。结论认为,中华鲟发育到一定年龄鳃动和心动频率趋于稳定。
We measured respiratory frequency, heart rate and heart size of Chinese sturgeon （Acipenser sinensis） by Uhransonography （Weld-2018 with a 3.5 Mhz array probe）. The Chinese sturgeon （Acipenser sinensis） is one of the largest anadromous fish that involve riverine spawning migration. It is a first class protected animal in China. The tested fish were cultured individuals at ages of 0.5,1,2,3,4,5,7,9 and 11 year （s）and wild bloodfish （≥ 15）respectively. Results show that it was a positive linear relationship （P 〈 0.01 ） between body length （x） and the cross-section cireumferece （x）, y =1.689 x ＋10.118 （R^2= 0.825, n=42）. Gills moving frequency rate and heart rate had a negative linear relationship with age. One year-old sturgeon had the highest gills moving frequency at （104.6±8.9）times/min, While the matured wild bloodfish had the lowest gills moving frequency at, （50.5 ± 3.6） times / min （n = 8）. It was a negative linear relationship （P〈0.01） between body length （x） and gills moving frequency （y） with y=-0.5078x ＋130.59 （R^2=0.8161, n=35）. Gills moving frequency and heart rate had a positive linear relationship with water temperature. At water temperature 13℃, gills moving frequency was （74.5 ±6.2）times/min （n=5）, heart rate was（26.9±3.2）times/min（n=5）; at water temperature 28℃, gills moving frequency was（ 106.1 ± 6.4） times/min （n = 5）, heart rate was （43.4 ± 8.44） times/min （n = 5）. Results show that gills moving and heart rate of Chinese sturgeon was stable with developing to a certain age.
出处
《中国水产科学》
CAS
CSCD
北大核心
2009年第4期605-611,共7页
Journal of Fishery Sciences of China
基金
国家社会公益研究专项(2004DIB3J099)
中央级公益性科研院所基本科研业务费专项资金项目
关键词
中华鲟
超声波
呼吸频率
心脏
水温
Acipenser sinensis
ultrasound
respiratory rate
heart rate
water temperature
