Idade ao primeiro parto de Búfalas Murrah e Mestiças criadas no município de Taipu, estado do Rio Grande do Norte / Age at first birth Buffaloes Murrah and Crossbred Maids in the city of Taipu, Rio Grande do Norte state

ABSTRACT

This study aimed to evaluate the age of the first calving of buffaloes (AFC) from a buffalo herd and toevaluate the influence of the blood level in the AFC. Five hundred and eight data were analyzed between 2000and 2015 of buffalo females, Murrah breed, and dairy mixed breeds maintained in an intensive system andsubmitted to two daily milking. Statistical data were evaluated in the SAS software (2010), for the analysis of thedifferent experimental conditions, analysis of variance (ANOVA) and Tukey test with significance level of 5%.The mean value found for AFC was 38.9 ± 5.5 months (1170 days), the AFC mean value according to blood levelof Murrah breed and mixed breed was respectively 38.9 ± 5.5 months and 38.90 ± 5.3 months, (P > 0.05).Therefore, there was no influence of the blood level in the AFC.