Comparative study on some growth promoters in male Newzeland rabbits [electronic resource]

Includes bibliographic reference

The present study was conducted on male Newzeland
rabbits to investigate in a comparative approach
the effects of bovine somatotropin and salbutamol
on growth performance, carcass traits,
and biosafety-related parameters. The recorded results
revealed that, bovine somatotropin increased
average daily feed intake and live body gain. Both
bovine somatotropin and salbutamol decreased
feed conversion ratio and increased feed efficiency.
While salbutamol increased dressing percentage,
longissimus muscle protein concentration
and plasma creatinine level, bovine somatotropin
has no effect on them. However, both promoters
decreased plasma urea concentrations. Bovine
somatotropin and salbutamol didn't significantly
alter biosafety-related plasma parameters; activi-
ties of alanine aminotransferase, aspartate amino-
transferase and alkaline phosphatase, plasma total
proteins, albumin, urea, glucose, sodium, chlo-
ride,total and free calcium and inorganic phosphorus.
In conclusion, Growth promoters; bovine
somatotropin or salbutamol are economic, profitable
and safe for animals and could be used for increasing
both feed efficiency and protein accretion,
and decreasing fat deposition .

Summary in Arabic