@article{Malcolm:123164,
      recid = {123164},
      author = {Malcolm, Bill},
      title = {Economics of extended lactations in dairying},
      journal = {AFBM Journal},
      address = {2005},
      number = {1672-2016-136597},
      pages = {11},
      year = {2005},
      abstract = {This paper deals with the economic analysis and management  implications of extending lactations in specialised dairy  cows. The main conclusion from this study is that in the  two dairy farm cases that have been investigated in depth,  the use of extended lactations to achieve efficient herd  reproduction is highly likely to give greater profit than  alternative systems that could be implemented. This  conclusion holds even after allowing for less than total  persistency of cows embarking on extended lactations.
The  overall outcome of a change from having only 10-month  lactations to having some cows in the herd milking for  extended lactations is determined by the complex  interactions of all of the major input, output, cost and  income factors at work in a dairy system. The likely net  effects of adopting the extended lactation innovation in a  dairy system has to be estimated for each unique farm  system, with particular attention paid to the skills and  aspirations of the people who operate the system.},
      url = {http://ageconsearch.umn.edu/record/123164},
      doi = {https://doi.org/10.22004/ag.econ.123164},
}