Iranian Journal of Veterinary Research, ( ISI ), Volume (10), No (3), Year (2009-10) , Pages (278-282)

Title : ( Reasons for culling of Holstein dairy cows in Neyshabur area in northeastern Iran )

Authors: Gholam Reza Mohammadi , - - ,

Citation: BibTeX | EndNote

This study was designed to determine the culling rates of 23 Holstein dairy herds (with an average size of 180 cows per herd) in Neyshabur area in northeastern Iran over a period of three years from 2001 to 2003. The average annual culling rate was 13.1%, (98.5% involuntary and 1.5% voluntary). Of the total disposals (1612 cows), 53.48% were culled by the end of five years of age. Poor fertility was the most important reason for culling (34.9% of disposals), followed by digestive disorders (12.6%), alimentary problems (10.85%), mastitis (9.6%) and lameness (8.3%). More detailed epidemiological studies are needed to plan and implement healthcare programs. These programs targeted toward diseases that lead to culling would be prerequisite for a profitable farming.

Keywords

, Culling, Holstein, Dairy cow,
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@article{paperid:1011886,
author = {Mohammadi, Gholam Reza and -, -},
title = {Reasons for culling of Holstein dairy cows in Neyshabur area in northeastern Iran},
journal = {Iranian Journal of Veterinary Research},
year = {2009},
volume = {10},
number = {3},
month = {October},
issn = {1728-1997},
pages = {278--282},
numpages = {4},
keywords = {Culling; Holstein; Dairy cow; Iran},
}

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%0 Journal Article
%T Reasons for culling of Holstein dairy cows in Neyshabur area in northeastern Iran
%A Mohammadi, Gholam Reza
%A -, -
%J Iranian Journal of Veterinary Research
%@ 1728-1997
%D 2009

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