We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
THE ECONOMIC IMPORTANCE OF PRODUCTIVE LIFETIME IN DAIRY CATTLE BREEDING.
- Authors
JÓZSEF, HORVÁTH; ZSANETT, TÓTH; EDIT, MIKÓ
- Abstract
Breeding dairy cows are profitable if milk and beef income exceed the total costs including materials, labour, housing, maintenance and other expenses over the cow's lifetime. Profitability of dairy herd is determined mainly by milk yield per lactation and the length of cow productive life which in intensive production system often does not exceed three lactations. Data were collected for 17 years from 2000 to 2016 from a dairy cattle farm in South-Hungary. Results from farm data as well as model calculations are reviewed to indicate some crucial features concerning longevity in dairy cattle breeding. From the farm data gathered the level of production is measured in separate phases of the lactation. The strongest correlation between the total milk yield and the productive lifetime was observed in the first phase (0-100 days) of the lactation. One day increase in productive lifetime resulted from 19.32 to 29.34 kg increasing of milk yield. From economic viewpoint it is an interesting question when is the point in the lactation the cows fall out of production.
- Subjects
CATTLE breeding; CATTLE productivity; CULLING of dairy cattle; CATTLE industry; DAIRY cattle reproduction; PROFITABILITY; LACTATION in cattle; ECONOMICS
- Publication
Agricultural Management / Lucrari Stiintifice Seria I, Management Agricol, 2017, Vol 19, Issue 2, p73
- ISSN
1453-1410
- Publication type
Article