Publications
Poster
Dose–response effects of recombinant eCG on reproductive performance of Nelore heifers submitted to fixed-time artificial insemination in tropical systems
Adriel Vânio Gretter, Davi Soutinho de Paiva, Eliane Vianna da Costa e Silva, Victor Guidi Zardo, Alexandre Hênryli de Souza, Rafael Moreira, Federico Randi, Gustavo Guerino Macedo, Pietro Sampaio Baruselli
Publication information
Word Buiatrics Congress 2026
Background and objective
This study was conducted to test the hypothesis that the dose-response to recombinant eCG administered at progesterone device removal differs among Nelore heifers managed under distinct tropical production conditions, thereby affecting reproductive performance following fixed-time artificial insemination (FTAI).
To evaluate the dose–response effects of recombinant equine chorionic gonadotropin (r-eCG; Foli-Rec®, Ceva Animal Health), compared with conventional eCG (Folligon®, MSD), on reproductive performance of Nelore heifers submitted to fixed-time artificial insemination (FTAI) under distinct tropical production conditions.
Materials and Methods
Results
Conclusions
Recombinant eCG at a dose of 70 IU provides reproductive performance comparable to conventional eCG in Nelore heifers submitted to FTAI under tropical conditions. However, body condition score and estrus expression exert a greater influence on pregnancy success than gonadotropin dose.
Our booklet of abstracts brings together Ceva’s scientific contributions to the World Buiatrics Congress 2026.
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