Freitas AF de, Madalena FE, Martinez ML. Age at first calving and calving interval of holstein friesian and crossbred holstein friesian: Gir cows. PAB [Internet]. 2014 Apr. 15 [cited 2025 Nov. 25];15(1):101-5. Available from: https://apct.sede.embrapa.br/pab/article/view/16470