Izlaganje sa skupa
Evaluation of nutritional status of dairy cows based on milk protein and urea content
Vesna Gantner
K. Kuterovac
Sonja Jovanovac
D. Solić
Ana Dakić
Sažetak
The aim of this study was to evaluate nutritional status of dairy cows based on protein and urea content in milk in respect to stage of lactation and production levels of cows. 150 000 test day records from the regular milk recording (AT4 scheme) from 01.01.2004. till 31.10.2005. was used. Based on protein and urea content in milk 21,04% of cows lower level of production (D1), 22,48% of cows middle level of production (D2) and 18,29% of cows higher level of production (D3) had satisfactory nutritional status. Satisfactory nutritional status had 13,79% of cows in first stage of lactation (S1), 16,36% of cows in middle stage (S2) and 24,75% of cows in last stage of lactation (S3).
Ključne riječi
nutritional status; protein content; urea content; production level; stage of lactation
Hrčak ID:
3016
URI
Datum izdavanja:
7.3.2006.
Posjeta: 1.735 *