Effect of sponge treatment duration (14 vs 15 days) during an estrous synchronization protocol using low dose of eCG (200 IU) in sheep

BRUNO GALARRAGA, MARÍA MACARENA;; CORREA A; JAESCHKE J; FERNANDEZ J; GIBBONS A,; CUETO, M; RODRIGUEZ PERSICO JM

Congreso; 19th International Congress on Animal Reproduction; 2022

ICAR

Estrous synchronization protocol for fix-timed artificial insemination (FTAI) in small ruminants usually requires the sponge to remain in the sheep for 12-14 days. Sometimes there is a need to split the AI tasks into two different days (i.e., large flocks, weather, etc.). Also, eCG effect may be affected by progestin length. The objective was to compare the effect of sponge-treatment duration (14 vs 15 days) on pregnancy, during a FTAI protocol combined with a low dose of eCG.