Zootechnical and productive indexes in dairy herd, From Federal University Of Paraiba,CCA / UFPB

Abstract

The objective of this research was to evaluate zootechnical and productive indexes of the Dairy herd from the Animal Science Department / CCA/ UFPB. The study was carried out in the Dairy Cattle Sector of the CCA / UFPB in Areia-PB, located in the Agreste's mesoregion from Paraiba-Brazil. Dairy and reproductive control records were used. The herd is composed of European / Zebu crossbred cows, with an average of 29 lactating cows per year between 2008 and 2016. The average milk yield of each control was calculated and, consequently, the herd average lactation months. The data were analyzed by the F test (p ≤ 0.05) and the Tukey test. The years 2008 and 2009 presented lower data than the others. From the year 2010 the zootechnical and productive indexes improved with the presence of a technician. The herd total lactation production was significant, with a good average annual production, the lactation duration in most years was within the range recommended for the breed, the herd average persistence in most years found below what is expected. Statistically no significant differences were observed in relation to the calving interval and the average milk yield per calving interval. It was possible to see that the indexes need to be improved.