Pregnancy risk in beef and dairy cows after supplementing semen with transforming growth factor beta-1 at the time of artificial insemination. - Fritsche KLM; Ahola JK; Pinedo PJ; Seidel GE; Rhoades RD; Stevenson JS; Olson KC; Jaeger JR; Grieger DM; Bromfield JJ (Journal of animal science, 2024)