Researches on Nutritional Behaviour in Romanian Black and White Primiparous Cows. Interruptions Number and their Duration in the Ration Consumption Time

Abstract

The study was carried out on 9 Romanian Black and White primiparous cows. The aim of this study was to determine some aspect of nutritional behaviour of the cows. During the experiments, the following behaviour aspects were determined: interruption number and their duration in the feed consumption time. Results showed that the administration order of forages had an influence on the interruptions number, which was 0.74 less for hay in fibrous-succulent order (O1). For silage, the interruption number was 0.42 higher in fibrous-succulent order (O1). Between portion 1 (P1) and portion 3 (P3), the significant difference (p<0.05) was for interruptions duration, during consumption silage, in favour portion P1. Distinct significant differences (p<0.01) was observed for the interruption number during consumption silage (0.95 sec. higher in P1 than in P3), for interruption duration (5.96 sec. higher in P1 than in P3). Between P2 and P3, significant difference (p<0.05) was observed for interruptions number during consumption silage and for average interruptions duration during consumption beet in favour to portion P2. Regarding the number of feedings per portion, always the differences were higher in the second feeding F1 than in the first feeding F2.

Keywords

• behaviour
• breeding
• nutritional behaviour
• primiparous cows
• romanian black and white cows