Incidence of Clinical Mastitis and its Influence on Reproductive Performance of Dairy Cows

Mahmoud M. Elmaghraby; Abeer F. El-Nahas; Mohamed M. Fathala; Ferial M. Sahwan; Mohamed A.Tag EL-Dien

doi:10.5455/ajvs.272337

2025, Vol: 87

87Current Volume Online First Archive Aims and Scope Abstracting & Indexing Most Accessed Articles Most Downloaded Articles Most Cited Articles

« Previous Article

Original Article

AJVS. 2017; 54(2): 84-90

doi: 10.5455/ajvs.272337

Incidence of Clinical Mastitis and its Influence on Reproductive Performance of Dairy Cows

Mahmoud M. Elmaghraby, Abeer F. El-nahas, Mohamed M. Fathala, Ferial M. Sahwan, Mohamed A.tag El-dien.

Abstract
The objectives of this study were to determine the incidence of clinical mastitis (CM) in relation to some risk factors and its impact on reproductive performance of Holstein cows. Lactation records (n = 1875) covering the period between 2013 and 2016 were used. One third of cows (647/1875) had contracted at least one episode of CM throughout the entire lactation. Frequency of CM decreased progressively with the month of lactation, and approximately half of the cases occurred within the first three months postpartum. Incidence decreased (P<0.001) with level of milk yield, but increased (P<0.001) with parity. CM significantly (P<0.05) increased calving to first estrus (+ 7.69 days), and to calving first insemination intervals (+6.46 days) compared to non-affected ones. Furthermore, cows contracted CM before conception required 30.96 days more and +0.47 inseminations to conceive than cows without mastitis. In brief, CM has a negative impact on reproductive performance of Holstein dairy cows, and its occurrence is associated with level of milk yield, lactation order and stage of lactation.

Key words: clinical mastitis; days open, services per conception, reproductive performance

	ARTICLE TOOLS
	Abstract
	PDF Fulltext
	How to cite this article
	Citation Tools
	Related Records
	Articles by Mahmoud M. Elmaghraby Articles by Abeer F. El-Nahas Articles by Mohamed M. Fathala Articles by Ferial M. Sahwan Articles by Mohamed A.Tag EL-Dien
	on Google
	on Google Scholar

How to Cite this Article

Pubmed Style

Elmaghraby MM, El-nahas AF, Fathala MM, Sahwan FM, El-dien MA. Incidence of Clinical Mastitis and its Influence on Reproductive Performance of Dairy Cows. AJVS. 2017; 54(2): 84-90. doi:10.5455/ajvs.272337

Web Style

Elmaghraby MM, El-nahas AF, Fathala MM, Sahwan FM, El-dien MA. Incidence of Clinical Mastitis and its Influence on Reproductive Performance of Dairy Cows. https://www.alexjvs.com/?mno=272337 [Access: May 04, 2025]. doi:10.5455/ajvs.272337

AMA (American Medical Association) Style

Elmaghraby MM, El-nahas AF, Fathala MM, Sahwan FM, El-dien MA. Incidence of Clinical Mastitis and its Influence on Reproductive Performance of Dairy Cows. AJVS. 2017; 54(2): 84-90. doi:10.5455/ajvs.272337

Vancouver/ICMJE Style

Elmaghraby MM, El-nahas AF, Fathala MM, Sahwan FM, El-dien MA. Incidence of Clinical Mastitis and its Influence on Reproductive Performance of Dairy Cows. AJVS. (2017), [cited May 04, 2025]; 54(2): 84-90. doi:10.5455/ajvs.272337

Harvard Style

Elmaghraby, M. M., El-nahas, . A. F., Fathala, . M. M., Sahwan, . F. M. & El-dien, . M. A. (2017) Incidence of Clinical Mastitis and its Influence on Reproductive Performance of Dairy Cows. AJVS, 54 (2), 84-90. doi:10.5455/ajvs.272337

Turabian Style

Elmaghraby, Mahmoud M., Abeer F. El-nahas, Mohamed M. Fathala, Ferial M. Sahwan, and Mohamed A.tag El-dien. 2017. Incidence of Clinical Mastitis and its Influence on Reproductive Performance of Dairy Cows. Alexandria Journal of Veterinary Sciences, 54 (2), 84-90. doi:10.5455/ajvs.272337

Chicago Style

Elmaghraby, Mahmoud M., Abeer F. El-nahas, Mohamed M. Fathala, Ferial M. Sahwan, and Mohamed A.tag El-dien. "Incidence of Clinical Mastitis and its Influence on Reproductive Performance of Dairy Cows." Alexandria Journal of Veterinary Sciences 54 (2017), 84-90. doi:10.5455/ajvs.272337

MLA (The Modern Language Association) Style

APA (American Psychological Association) Style

About Alexandria Journal of Veterinary Sciences

Contact Information

How to cite this article