The effect of canola oil enriched Artemia (Leach) nauplii on growth, survival, resistance to environmental stresses of temperature and oxygen deficiency and fatty acid composition in severum fish, Heros severus (Hecke...The effect of canola oil enriched Artemia (Leach) nauplii on growth, survival, resistance to environmental stresses of temperature and oxygen deficiency and fatty acid composition in severum fish, Heros severus (Heckel), larvae were investigated. The larvae (average weight 3 mg ± 0.83) were fed 4 times daily starting at the onset of exogenous feeding for 18 days. Triplicate groups of fish were offered one of two treatments: 1) newly hatched Artemia (Leach) nauplii (unenriched) and 2) canola oil enriched Artemia (Leach) nauplii. Then all groups of fish were switched to the commercial diet for an additional period of 18 days. Statistical analysis of growth after 18 days and at the end of the experiment (36 days), showed that the highest specific growth rates (9.65% ± 0.3), (17.44% ± 0.31) the average weight (17 mg ± 0.95), (65.2 mg ± 0.53) were observed in treatment 2 respectively, but there was no significant difference in survival rate between treatments. The best result of resistance to oxygen deficiency (5 min) was observed in larvae reared on treatment 2 with 75.67% ± 0.66 after 36 days. Result of temperature stress showed no significant difference between treatments. The larvae were also found to convert n-3 fatty acids to EPA and DHA.展开更多
In the early third century A.D.,a rescript of Septimius Severus declared that a woman who procuring an abortion for herself should be sent into temporary exile by the governor The case may be used as a clue to look at...In the early third century A.D.,a rescript of Septimius Severus declared that a woman who procuring an abortion for herself should be sent into temporary exile by the governor The case may be used as a clue to look at the freedom of abortion of women in ancient Rome.Prior to this rescript,Roman women were legally free to have abortions,but they began to be restricted thereafter.Both"freedom"and"restriction"are endowed by males.The purpose of Severus'rescript to punish women who have abortions is to protect the patria potestas(the father's patriarchal rights).And the emergence of the rescript was also a reflection of Roman society's negative attitude to abortion.The Roman Empire was governed on the basis of patria potestas.Legistation,traditional customs and the opinions of the intellectual elite formed a cultural mechanism.Women in this mechanism have the seemingly right to abortion,but the actual free space is very small.On June 24,2022,the Supreme Court of the United States reversed the Roe v.Wade decision in 1973.Anti-abortion forces are on the increase,holding high the banners of religious piety to attack women's freedom.Through research,it can be seen that in the Roman Empire prior to Christianity gained a dominant position in society,the womb of women was also decided by men.What really dominates the concept of abortion opponents today is the patria potestas ideology rooted in Western society for thousands of years.展开更多
文摘The effect of canola oil enriched Artemia (Leach) nauplii on growth, survival, resistance to environmental stresses of temperature and oxygen deficiency and fatty acid composition in severum fish, Heros severus (Heckel), larvae were investigated. The larvae (average weight 3 mg ± 0.83) were fed 4 times daily starting at the onset of exogenous feeding for 18 days. Triplicate groups of fish were offered one of two treatments: 1) newly hatched Artemia (Leach) nauplii (unenriched) and 2) canola oil enriched Artemia (Leach) nauplii. Then all groups of fish were switched to the commercial diet for an additional period of 18 days. Statistical analysis of growth after 18 days and at the end of the experiment (36 days), showed that the highest specific growth rates (9.65% ± 0.3), (17.44% ± 0.31) the average weight (17 mg ± 0.95), (65.2 mg ± 0.53) were observed in treatment 2 respectively, but there was no significant difference in survival rate between treatments. The best result of resistance to oxygen deficiency (5 min) was observed in larvae reared on treatment 2 with 75.67% ± 0.66 after 36 days. Result of temperature stress showed no significant difference between treatments. The larvae were also found to convert n-3 fatty acids to EPA and DHA.
基金supported by the"Young Teachers'Development Funding Project of School of History"of Beijing Normal University.
文摘In the early third century A.D.,a rescript of Septimius Severus declared that a woman who procuring an abortion for herself should be sent into temporary exile by the governor The case may be used as a clue to look at the freedom of abortion of women in ancient Rome.Prior to this rescript,Roman women were legally free to have abortions,but they began to be restricted thereafter.Both"freedom"and"restriction"are endowed by males.The purpose of Severus'rescript to punish women who have abortions is to protect the patria potestas(the father's patriarchal rights).And the emergence of the rescript was also a reflection of Roman society's negative attitude to abortion.The Roman Empire was governed on the basis of patria potestas.Legistation,traditional customs and the opinions of the intellectual elite formed a cultural mechanism.Women in this mechanism have the seemingly right to abortion,but the actual free space is very small.On June 24,2022,the Supreme Court of the United States reversed the Roe v.Wade decision in 1973.Anti-abortion forces are on the increase,holding high the banners of religious piety to attack women's freedom.Through research,it can be seen that in the Roman Empire prior to Christianity gained a dominant position in society,the womb of women was also decided by men.What really dominates the concept of abortion opponents today is the patria potestas ideology rooted in Western society for thousands of years.
