Estrus Signs and Estrogen Levels in Brahman Cross and First-Generation (F1) Crossbred Cattle: Implications for Pregnancy and Repeat Mating
Devi Ermawati1, Panjono2, Sigit Bintara1, Ali Agus3, Budi Prasetyo Widyobroto2, Bertha Yudistyra4, Rifai Mustofa4, Tety Hartatik1*
1Department of Animal Breeding and Reproduction, Faculty of Animal Science, Universitas Gadjah Mada, Yogyakarta, Indonesia; 2Department of Animal Production, Faculty of Animal Science, Universitas Gadjah Mada, Yogyakarta, Indonesia; 3Department of Nutrition and Feed Science, Faculty of Animal Science, Universitas Gadjah Mada, Yogyakarta, Indonesia; 4Division of Research and Development for Cattle Breeding, PT Widodo Makmur Perkasa, West Java, Indonesia.
*Correspondence | Tety Hartatik, Department of Animal Breeding and Reproduction, Faculty of Animal Science, Universitas Gadjah Mada, Yogyakarta, Indonesia; Email: tety@ugm.ac.id
Figure 1:
the sign of estrus during estrus and 30 days post artificial insemination in brahman cross and F1 crossbred cattle.