Evaluation of clinical, morphometric and biochemical profile of treated lambs with rBST (Recombinant Bovine Somatotropin)

Abstract

Somatotropin is a proteinic hormone known for countless effects in the general metabolism of the body, as the increase in the soft and osseous tissues and the stimulus to the production of milk.  For the present study 47 lambs of the breed “Santa Inês” were used.  They were from the same place and were divided into two groups:  one treatment-group (n = 27), which was treated with two applications of 250 mg of rBST (Boostin®), via subcutaneous in the ischium-retal region. The average age were 35 to 41 days old (M1) and 55 and 61 days old (M2). The control-group (n = 20) received injections of physiological solution in suitable content. Clinical, morphometric, weight and biochemical evaluations were performed before the treatment and fortnightly. According to the results observed it was possible to conclude that the treatment has not influenced the gaining of weight of the animals, not even the measure used in morphometry.  The usage of rBST has not caused any side effect in the health of the lambs or any alteration in the place of the application.  The biochemical profile of the animals has not suffered any changes that could be connected to the treatment