Eficiência produtiva e reprodutiva de vacas leiteiras: estudo de uma propriedade leiteira no município de teutônia/ RS

Abstract

Milk production and reproduction can be considered as the main factors that directly interfere with lactation and consequently undertake the production. The aim of this study was a demonstration study on productive and reproductive data of dairy cows at a farm in the municipality of Teutonia / RS in order to check the production efficiency of the herd. reproductive and productive analyzed data collected over a period of five years (May 2011 to March 2016), 96 cows from a dairy herd of Holstein belonging to a farm in the municipality of Teutonia / RS, managed in the system of semiconfinement in shed model Free stall. For data collection was carried out consulting the records that the producer kept in livestock control spreadsheets herd. The data selection criterion was the occurrence of at least two deliveries during the evaluation period, and recorded 234 births in 96 animals. The minimum weight for the first service used on the property was 340 kg, with a mean age at first birth 24 months. Drying of the cows was performed 60 days prior to parturition. Data were submitted to descriptive analysis. the average incidence of 2.44 births / cow in the period, average IPPC 71.70 ± 38.96 days was verified; IEC average of 68.15 ± 58.68 days; Average number of 3 ± 2.23 doses for design; IPC average 192.33 ± 162.12 days and IEP 456.11 ± 162.77 days. For the production parameters were observed the following values: LED 332.33 ± 105.18 days; PL average of 24.05 ± 6.97 kg / cow / day and average CCS 439.48 ± 1091.20 cells / mL. With the results can be understood that the reproductive performance is very important in optimizing the production efficiency of the herd and evaluation of reproductive parameters is essential for detection of critical control points on the property