engleski

Application of Lacto-Corder in the control of milkability properties of dairy cows in Croatia

Control of dairy cows production in Croatia consists of two steps: measurement of milk amount after the milking and taking of milk samples for the chemical analysis. This kind of control gives a very few information about production. On the other hand, for several years other countries use sophisticated devices, such as Lacto-Corder, for monitoring of many parameters important for production and selection of cows. Lacto-Corder is measuring device for production control and collecting of milk samples. Research work was conducted on Holstein cows (n = 457). Cows were in the range from first to third lactation. Thirteen production parameters were measured. Duration of main milking phase (dMFR) was 4, 51 min. The average amount of milk in that time (MY) was 10, 18 kg. Average milking in minute (AFR) was 2, 27 kg/min. For quick and efficient milking it is desirably that cows have a long and persistent plateau phase, while ascending and descending phase should be as shorter as possible. From the environmental factors affecting milking properties, farm factor had the biggest influence while lactation order and stage were less significant. The results showed that the milking properties of cows were not adjusted to machine device milking. With the Lacto-Corder measuring device many valuable data can be obtained for the purpose of cattle selection in Croatia. The only obstacle for use of Lacto- Corder in Croatia today is very high selling price.

Lacto-Corder ; production control ; milkability ; cows ; technology

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