TY  - JOUR
T1  - Determination of Economic Efficiency in Production Traits and Herd Life of Dairy Cattle in Iran
AU - , B. Mahmoudi AU - , M. Eskandarinasab AU - , Gh. Manafiazar AU - , A. A. Mirak AU - , M.S. Babayev 
JO  - Journal of Animal and Veterinary Advances
VL  - 8
IS  - 2
SP  - 285
EP  - 289
PY  - 2009
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2009.285.289
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2009.285.289
KW  - Dairy cattle
KW  -economic efficiency
KW  -herd life
KW  -Iran
KW  -production traits
AB  - One deterministic model that show flock dairy cattle agreement with fixing prices milk team in Iran and parities of economic efficiency in milk product and fat percent and milk protein percent and long life of flock in two tendency (profit maximizing and cost minimizing), 3 kind of limitation in team dimensions (number of cattle, input and milk product) and 2 kind of fix flock cost (independent of number of cattle and to be changeable of all cost per cattle) were calculated. Effects of different system limitation for economic efficiency were considered. In maximizing profit tendency, trait long life of flock is less changeable than other traits. In tendency minimizing cost and to be changeable of all costs per cattle efficiency of economic qualities is independent kind of limitation in dimensions and system. So, if in calculation of economic efficiency tendency choice to be minimizing cost and cost to allow for changeable per cattle economic efficiency product, probable maximizing changeable in dimensions team in future will be come without changing.
ER  -