Selection for the combination of total protein and endurance in mice

Abstract

Preliminary results on the study of reciprocal combinations of lines selected separately for stress endurance and for protein deposition in both directions (negative and positive) have been reported. The

Relationship between stress resistance and activation of hydrocorticosterone in mice

“…Significant negative correlated response in protein synthesis was estimated, when body weight was diminished in the B- line (HORST et al 1977). HORST et al (1977) also found, within selection lines, a positive phenotypic correlation between total N in the body and body weight (r = +0.65) and a negative phenotypic correlation between body weight and endurance ability (r = -O.II), the latter being also significantly different from zero. The negative within line correlation corresponds to changes during a long range selection programme.…”

“…Total crude N in the body and 2. The ability to mobilize stress resistance, or "rate of survival under unfavourable conditions" (HORST et a]. 1977; see also the percentages of discard at the arrival at the Head Railway Station, Copenhagen, in Table 1 ).…”

“…and HORST et al (1977) reported on a selection experiment with mice for and against stress resistance. Line B+ was selected for and line Bagainst stress resistance.…”