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209134

INHERITANCE OF CLINICAL MASTITIS AND THEIR RELATIONSHIP WITH MILK PRODUCTION IN FRIESIAN COWS IN EGYPT

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Last updated: 05 Jan 2025

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Abstract

The data used in this investigation were taken from 285 Friesian Cows in two farms belonging to Ministry of Defense at two locations, in Rass El-Soda in Alexandria and the other in Shobra Shehab near Cairo. The average 305-days milk p < /strong>roduction of 112 cows affected with mastitis in their first or second lactation in the two farms was 3506 kgs, while the average of comparable but healthy 173 cows was 2921 kgs, the differ ence was highly significant. The regression of daily milk yield during eleven days before the onset of mastitis in affected cows was found to be 0.155 while that obtained for the eleven days after treatments was -0.008, the difference between two regression was found to be highly significant. The heritability of mastitis (using regression of daughters on dam) was found to be relatively high (0.52).

DOI

10.21608/avmj.1991.209134

Authors

First Name

Y.S.

Last Name

GHANEM

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First Name

KH.M.

Last Name

EL-BAYOMI

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First Name

M.A.

Last Name

MANDOUR

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Orcid

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First Name

A.E.

Last Name

BADRAN

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Volume

26.1

Article Issue

51

Related Issue

26992

Issue Date

1991-10-01

Receive Date

1991-06-08

Publish Date

1991-10-01

Page Start

92

Page End

97

Print ISSN

1012-5973

Online ISSN

2314-5226

Article File

AVMJ_Volume 26.1_Issue 51_Pages 92-97.pdf

PDF . 1.5MB

Link

https://avmj.journals.ekb.eg/article_209134.html

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https://avmj.journals.ekb.eg/service?article_code=209134

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8

Type

Research article

Type Code

1,840

Publication Type

Journal

Publication Title

Assiut Veterinary Medical Journal

Publication Link

https://avmj.journals.ekb.eg/

MainTitle

INHERITANCE OF CLINICAL MASTITIS AND THEIR RELATIONSHIP WITH MILK PRODUCTION IN FRIESIAN COWS IN EGYPT

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Article

Created At

23 Jan 2023