期刊
AQUACULTURE RESEARCH
卷 37, 期 3, 页码 264-271出版社
WILEY
DOI: 10.1111/j.1365-2109.2005.01428.x
关键词
artificial spawning; carp pituitary homogenate; Lecirelin; Ovopel; Lithuanian strain B carp
类别
The results of reproduction of females from Lithuanian strain B carp after ovulation stimulation with carp pituitary homogenate (CPH; 0.3+2.7 mg kg(-1); group I), Ovopel (1/5+1 pellet kg(-1); group II) or [D-Tle(6), ProNHEt(9)] GnRH-a (Lecirelin) with metoclopramide (15 mu g kg(-1)+10 mg kg(-1) respectively; group III) were investigated. The lowest percentage of spawning females (71%) was recorded in the group treated with CPH. In case of Ovopel or Lecirelin induced ovulation, 86% of females spawned. No statistically significant effect of the ovulation stimulator (group) on the weight of eggs was found; however, the highest mean weight of eggs (expressed both in grams and in the percentage of female body weight) was recorded for the group treated with Ovopel (1400 g and 13%). After the treatment with CPH or Lecirelin, the weight of eggs was 1140 g (11%) and 1100 g (10%) respectively. The ovulation stimulator significantly affected the percentage of live embryos after 36 and 48 h incubation of eggs (P <= 0.05; P <= 0.01). After treatment with [D-Tle(6), ProNHEt(9)] GnRH-a, eggs of the best quality were obtained and after 36 and 48 h incubation the mean percentages of live embryos were significantly higher than the means calculated for the remaining two groups. No statistically significant differences were found between the percentage of living embryos after 36 and 48 h incubation of groups I and II.
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