Meta analysis of the prevalence of subclinical mastitis in dairy cattle

PDF (English)
Publiée : Ιαν 18, 2024
Mis à jour : 2024-01-18
DOI : https://doi.org/10.12681/jhvms.31916
E Çelik Gürbulak
Department of Biometrics, Erciyes University, Faculty of Veterinary Medicine, Kayseri, Turkey
A Akçay
Department of Biostatistics, Ankara University, Faculty of Veterinary Medicine, Ankara, Turkey
Résumé

Mastitis, which is defined as the inflammation of mammary tissue caused by infectious agents such as bacteria, yeast, fungi and viruses, is considered to be one of the most important problems of dairy enterprises due to reduced milk yield and milk quality. Therefore, studies on mastitis have been continuous from past to present. The presence of too many studies conducted in all around the world in order to estimate the prevalence of mastitis and to determine the factors affecting the disease has necessitated systematic review or meta-analysis studies on this subject. In this study, it was aimed to perform the meta-analysis for the prevalence of cow and udder quarter-based subclinical mastitis in 193 studies conducted around the world, and to determine the effects of some factors on the prevalence of subclinical mastitis using subgroup and meta-regression methods. Because high heterogeneity was detected between studies in the analysis, the random effects model (Der Simonian-Laird method) (Q=15149.869, df=188, p<0.001, I2=98.759; Q=72142.706; df=174, p<0.001; I2=99.774) was used in this study. The publication biases in the study samples were determined by the use of Egger's linear regression test, the Begg and Mazumdar rank correlation test and funnel plots. As a result of the study, the common prevalence of subclinical mastitis in cow and udder quarter-based studies were calculated as 0.46 (95% CI: 0.43-0.48) and 0.32 (95% CI: 0.30-0.34) respectively. The meta-analysis conducted in this study has enabled the elimination of inconsistencies in the prevalence of subclinical mastitis in individual studies conducted around the world, and has provided a stronger and more precise estimate.

Article Details
  • Rubrique
  • Research Articles
Creative Commons License

Ce travail est disponible sous licence Creative Commons Attribution - Pas d’Utilisation Commerciale 4.0 International.

Authors who publish with this journal agree to the following terms:

· Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution Non-Commercial License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

· Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g. post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

· Authors are permitted and encouraged to post their work online (preferably in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.

Téléchargements
Les données relatives au téléchargement ne sont pas encore disponibles.
Références
Allore HG, Oltenacu PA, and Erb HN (1997). Effects of Season, Herd
Size, and Geographic Region on the Composition and Quality of Milk
in the Northeast. J Dairy Sci, 80, 3040-3049.
Almaw G, Zerihun A and Asfaw Y (2008). Bovine mastitis and its association with selected risk factors in smallholder dairy farms in and
around Bahir Dar, Ethiopia. Trop Anim Health Prod 40, 427-432.
Bangar YC, Singh B, Dohare AK and Verma MR (2014). A systematic review and meta-analysis of prevalence of subclinical mastitis in dairy
cows in India. Trop Anim Health Prod, 47, 291-297.
Bastan A (2002). İneklerde Meme Hastalıkları. Ankara: pp 33-50, 56-64,
-74, 84-86.
Bastan A (2013). İneklerde Meme Sağlığı ve Sorunları. Genisletilmis II.
Baskı Ankara: pp 186-188.
Baujat B, Mahé C, Pignon JP and Hill CA (2002). Graphical method for
exploring heterogeneity in meta-analyses: Application to a meta-analysis of 65 trials. Stat Med, 18, 2641-2652.
Begg CB, Mazumdar M (1994). Operating Characteristics of a Rank Correlation Test for Publication Bias Biometrics, 50, 1088-1101.
Biffa D, Debela E, Beyene F (2005). Prevalence and Risk Factors of Mastitis in Lactating Dairy Cows in. Intern J Appl Res Vet Med, 3, 189-
Björk S (2013). Clinical and subclinical mastitis in dairy cattle in kampala, Uganda. J Biblic Lit, 65.
Blosser TH (1979). Economic Losses from and the National Research
Program on Mastitis in the United States. J Dairy Sci, 62, 119-127.
Borenstein M, Hedges LW, Higgins JPT, Rothstein HR (2009). Introduction to Meta Analysis, pp 10, 41, 65-72, 113-114, 371-376.
DerSimonian R, Laird N (1986). ‘Meta-analysis in clinical trials’, Controlled Clinical Trials, 7, 177-188.
Duval S, Tweedie R (2000). Trim and fill: A simple funnel-plot-based
method of testing and adjusting for publication bias in meta-analysis
Biometrics, 56, 455-463
Effendi MH, Harijani N, Budiarto, Triningtya NP, Tyasningsih W, Plumeriastuti H (2019). Prevalence of pathogenic Escherichia coli isolated
from subclinical mastitis in East Java Province, Indonesia. Indian Vet
J, 96, 22-25.
Egger M, Smith GD, Schneider M, Christoph M (1997). Bias in meta-analysis detected by a simple, graphical test. Br Med J, 315, 629-634.
Getaneh AM, Gebremedhin EZ (2017). Meta-analysis of the prevalence of
mastitis and associated risk factors in dairy cattle in Ethiopia. Tropical Animal Health and Production, 49, 697-705.
Glass GV (1976). Primary, Secondary and Meta-Analysis of Research.
Educational Researcher, 5, 3-8.
Hedges LV, Olkin I (1985). Statistical Methods for Meta-Analysis, San
Diego, CA: Academic Press.
Higgins JPT, Thompson SG, Deeks JJ, Altman DG (2003). Measuring inconsistency in meta-analyses British Medical Journal, 327, 557-560
Hoque MN, Das ZC, Talukder AK, Alam MS, Rahman ANMA (2014).
Different screening tests and milk somatic cell count for the prevalence of subclinical bovine mastitis in Bangladesh. Tropical Animal Health and Production, 47, 79-86
Hortet P, Seegers H (1998). Loss in milk yield and related composition
changes resulting from clinical mastitis in dairy cows. Preventive Veterinary Medicine, 37, 1-20
Hunter JE, Schmidt FL (2004). Methods of Meta-Analysis: Correcting Error and Bias in Research Findings
Kaymaz M, Fındık M, Risvanlı A, Köker A (2016). Evcil hayvanlarda meme hastalıkları, 1. Baskı: pp 147-155, 179.
Krishnamoorthy P, Suresh KP, Saha S, Govindaraj G, Shome BR, Roy
Parimal (2017). Meta-analysis of Prevalence of Subclinical and Clin ical Mastitis, Major Mastitis Pathogens in Dairy Cattle in India International Journal of Current Microbiology and Applied Sciences,
, 1214-1234
Krishnamoorthy P, Goudar AL, Suresh KP, Roy P (2021). Global and
countrywide prevalence of subclinical and clinical mastitis in dairy
cattle and buffaloes by systematic review and meta-analysis Research
in Veterinary Science, 136, 561-586 (Elsevier Ltd)
Lakew M, Tolosa T, Tigre W, 2009. Prevalence and major bacterial causes
of bovine mastitis in Asella, South Eastern Ethiopia. Trop Anim Heal
Prod, 41, 1525-1530.
Mosteller F, Colditz G (1996). Understanding Research Synthesis (Meta-Analysis) Annu Rev. Public Health, 1-23
Oleggini GH, Ely LO, Smith JW (2001). Effect of region and herd size
on dairy herd performance parameters Journal of Dairy Science, 84,
-1050
Östensson K, Lam V, Sjögren N, Wredle E (2013). Prevalence of
subclinical mastitis and isolated udder pathogens in dairy cows in
Southern Vietnam. Trop Anim Heal Prod, 45, 979-986.
Page MJ, McKenzie JE, Bossuyt PM, Boutron I, et al. The PRISMA 2020
statement: an updated guideline for reporting systematic reviews.
BMJ. 2021;372:n71
Philpot WN, Nickerson SC (2000). Winning the fight against mastitis,
-10, 31, 50-53, 123 - 128.
Tuke M, Kassaye D, Muktar Y, Negese T, Nigusu K (2017). Bovine mastitis: Prevalence and associated risk factors in Alage ATVET college dairy farm, Southern Ethiopia. J Vet Sci Technol, 8, 462.
Whitehead A (2002). Meta-Analysis of Controlled Clinical Trials, 1-6.
Zalizar L, Sujono S, Indratmi D, Soedarsono YA (2018). Kasus mastitis sub klinis pada sapi perah laktasi di Kecamatan Pujon Kabupaten Malang. JIIP, 28, 35-41