Does enzyme heterozygosity influence developmental rate in rainbow trout?

Heterozygosity and Oxygen-Consumption Rate as Predictors of Growth and Developmental Rate in Rainbow-Trout

ACTH does not mediate divergent stress responsiveness in rainbow trout.

Two lines of rainbow trout selected for high (HR) and low (LR) responsiveness to a standardised confinement stressor displayed a sustained divergence in plasma cortisol levels during a 3-h period of confinement (max.: HR: 167+/-13 ng ml(-1); LR: 103+/-8 ng ml(-1); P<0.001). However, no significant difference in plasma ACTH levels was evident (max: HR: 153+/-9 pg ml(-1); LR: 142+/-7 pg ml(-1)). ...

Does age influence loss of heterozygosity?

The striking correlation between advanced age and an increased incidence of cancer has led investigators to examine the influence of aging on genome maintenance. Because loss of heterozygosity (LOH) can lead to the inactivation of tumor suppressor genes, and thus carcinogenesis, understanding the affect of aging on this type of mutation event is particularly important. Several factors may affec...

Changes in blood pressure, heart rate and breathing rate during moderate swimming activity in rainbow trout.

There is a paucity of data concerning the changes in circulation occurring during swimming in fish. Data reported in the literature have been obtained from either restrained, anaesthetized or operated fish (Greene, 1904; Hart, 1945; Johansen, 1962; Robertson et al. 1966). Such procedures can have marked effects on fish (Fry, 1957). It is therefore surprising that little attention has been direc...

Changes in Blood Pressure, Heart Rate and Breathing Rate during Moderate Swimming Activity in Rainbow Trout

There is a paucity of data concerning the changes in circulation occurring during swimming in fish. Data reported in the literature have been obtained from either restrained, anaesthetized or operated fish (Greene, 1904; Hart, 1945; Johansen, 1962; Robertson et al. 1966). Such procedures can have marked effects on fish (Fry, 1957). It is therefore surprising that little attention has been direc...