incidence, production and economic losses of clinical mastitis in egyptian holstein cows

نویسندگان

m.s. el-tarabany

m.a. ali

چکیده

this study utilized daily records of 2000 egyptian holstein dairy cows. the productive, reproductive and economic data during a whole lactation season were recorded for healthy and mastitis cows. two risk factors for mastitis were included, parity and season of calving. mastitis cows had significant (p

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منابع مشابه

Incidence, Production and Economic Losses of Clinical Mastitis in Egyptian Holstein Cows

This study utilized daily records of 2000 Egyptian Holstein dairy cows. The productive, reproductive and economic data during a whole lactation season were recorded for healthy and mastitis cows. Two risk factors for mastitis were included, parity and season of calving. Mastitis cows had significant (P

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Effects of Clinical Mastitis on Reproductive Performance in Holstein Cows

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Estimation of Economic Values for Fertility, Stillbirth and Milk Production Traits in Iranian Holstein Dairy Cows

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Estimation of economic values and financial losses associated with clinical mastitis and somatic cell score in Holstein dairy cattle.

The objective of this study was to develop a method for calculating economic values of clinical mastitis (CM) and somatic cell score (SCS) for inclusion in a dairy cattle breeding goal in the context of a country where farm production and economic data are scarce. In order to calculate the costs and derive economic values for SCS, a new model, 'milk collection method', has been developed and wa...

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Relationship between season, lactation number and incidence of clinical mastitis in different stages of lactation in a Holstein dairy farm

The aim of the present study was to compare the occurrence and duration of clinical mastitis in different seasons, stages of lactation period and parities in a Holstein dairy farm in Iran. A retrospective epidemiological survey from April 2005 to March 2008 was conducted on 884 clinical mastitis cases of 7437 lactations. Data of each case including calendar-date of mastitis onset, days in milk ...

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عنوان ژورنال:
iranian journal of applied animal science

ناشر: islamic azad university - rasht branch

ISSN 2251-628X

دوره 5

شماره 4 2015

میزبانی شده توسط پلتفرم ابری doprax.com

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