Efeito da somatotropina bovina recombinante (rbST) em duas diferentes doses sobre a concentração sérica de progesterona (P4) em cabras Sem Padrão Racial Definido (SPRD) submetidas à inseminação artificial em tempo fixo(IATF) / Effect of recombinant bovine somatotropin (rbST) on two different doses on the serum concentration of progesterone (P4) in undefined breed goats submitted to Fixed Time Artificial Insemination (FTAI)

ABSTRACT

The objective of this work was to evaluate the influence of the association of rbST with a protocol ofFTAI on the concentration of progesterone (P4) in in undefined breed goats. Goats were inseminated followingthe 11-day protocole. In D6, the animals were divided into three experimental groups GI (n = 42) 250 mg rbST,SC, G-II (n = 39) 125 mg rbST, SC, and G- III (n = 41) ( control). P4 hormonal dosages were performed byELISA on D0, D09, D12 and D21. The results show that treatment with somatotropin at two different dosesassociated with an IATF protocol did not affect the serum progesterone concentration.