1992 Volume 58 Issue 12 Pages 2335-2340
Recombinant red sea bream growth hormone (r-rsbGH) was injected intraperitoneally or intramuscularly into red sea bream weighing about 800g. R-rsbGH was rapidly introduced into the circulation through both injection methods, but r-rsbGH injected intramuscularly was retained at a higher level for a comparatively longer time. Based on this, young red sea bream in two groups (a 35 g-size group and a 45 g-size group) were injected intramuscularly on every sixth day with r-rsbGH solution at dosages of 0, 0.1, and 1 μg×(g body weight)-1. The r-rsbGH injections caused growth enhancement in terms of both length and weight in fish in the 35 g-size group, and the food conversion efficiency increased with increasing dosage in both groups.
