| Autor: |
R.R. Khisamov, Fsbei He, I.V. Lomakin, R.R. Kayumov, L.R. Zagidullin |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Scientific Notes Kazan Bauman State Academy of Veterinary Medicine. 245:210-214 |
| ISSN: |
2413-4201 |
| DOI: |
10.31588/2413-4201-1883-245-1-210-214 |
| Popis: |
A new method of selecting cows for milking on a robotic milking installation is presented. The method includes a two-stage selection of first lactation cows. At the first stage, first-calf heifers are selected according to the optimal requirements for the udder. At the second stage, animals se-lected according to the number of voluntary milking. Animals that have this indicator less than the average for the herd by 1 sigma are rejected from the herd. Economic research has been carried out to test the method. It was found that 11 % of first-calf heifers were assigned to the cull group. They were milked 28.5 % less than animals of the main group. First-calf heifers of the main group surpass their peers in the culling group in terms of milk yield by 42.2 %. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
