Lameness, metabolic and digestive disorders, and technical efficiency in Danish dairy herds: a stochastic frontier production function approach

被引:35
作者
Lawson, LG
Agger, JF
Lund, M
Coelli, T
机构
[1] Royal Vet & Agr Univ, Danish Res Inst Food Econ, Management Div, DK-1958 Frederiksberg C, Denmark
[2] Royal Vet & Agr Univ, Dept Large Anim Sci, DK-1958 Frederiksberg C, Denmark
[3] Univ Queensland, Sch Econ, St Lucia, Qld 4067, Australia
来源
LIVESTOCK PRODUCTION SCIENCE | 2004年 / 91卷 / 1-2期
关键词
animal health economics; dairy herd efficiency; epidemiology; lameness; milk fever; ketosis; digestive disorders; stochastic frontier production function;
D O I
10.1016/j.livprodsci.2004.07.016
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
The relationship between reported treatments of lameness, metabolic disorders (milk fever, ketosis), digestive disorders, and technical efficiency (TE) was investigated using neutral and non-neutral stochastic frontier analysis (SFA). TE is estimated relative to the stochastic frontier production function for a sample of 574 Danish dairy herds collected in 1997. Contrary to most published results, but in line with the expected negative impact of disorders on the average cow milk production, herds reporting higher frequencies of milk fever are less technically efficient. Unexpectedly, however, the opposite results were observed for lameness, ketosis, and digestive disorders. The non-neutral stochastic frontier indicated that the opposite results are due to the relative. high productivities of inputs. The productivity of the cows is also reflected by the direction of impact of herd management variables. Whereas efficient farms replace cows more frequently, enroll heifers in production at an earlier age, and have shorter calving intervals, they also report higher frequency of disorder treatments. The average estimated energy corrected milk loss per cow is 1036, 451 and 242 kg for low, medium and high efficient farms. The study demonstrates the benefit of the stochastic frontier production function involving the estimation of individual technical efficiencies to evaluate farm performance and investigate the source of inefficiency. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:157 / 172
页数:16
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