Study on the Excretion Behaviour in Romanian Black and White Primiparous Cows. Number of Defecations

Abstract

The study was carried out on 9 Romanian Black and White cows in their first hundred days of lactation. The aim of this study was to measure the main aspects that characterized the excretion behaviour (defecation) of the cows in 24 hours that were divided into 3 day periods: 07:00-14:00 (I1), 14:00-2:001 (I2), 21:00-07:00 (I3). During the experiments, the following defecation behaviour aspects were determined: total number of defecations, number of defecations in the three intervals, number of defecations according to administration order of forages (fibrous-succulents and succulents-fibrous). Data was computed by ANOVA/MANOVA. Results showed that the differences between intervals I1-I2 and I1-I3 were statistically very significant (p< 0.01). In fibrous – succulent order the defecation were 0.69 higher than in succulent- fibrous order (p< 0.01). Total number of defecation resulted by summing the defecation from the three intervals, was 14.67 in the first administration order (fibrous-succulent) and 12.61 in the second administration order (succulent-fibrous).

Keywords

• behaviour
• cows
• defecation
• romanian black and white