1. Ansari-lari M, Kafi M. Reproductive performance of Holstein dairy cows in Iran Reproductive performance of Holstein dairy cows in Iran. 2010;(May 2018).
2. Clothier K, Anderson M. California Animal Health & Food Safety Lab System, School of Veterinary Medicine and. Theriogenology [Internet]. 2015; Available from: http://dx.doi.org/10.1016/j.theriogenology.2015.11.001
3. Lobago F. Reproductive and lactation performnace of daíry cattle in the Oromia Central Highlands of Ethiopia Reproductive and Lactation Performance of Dairy Cattle in the Oromia Central Highlands of Ethiopia with Special Emphasis on Pregnancy Period Swedish University of Agricultural Sciences. 2014.
4. Olsen SC, Palmer M V. Veterinary Pathology Online. 2014;(June).
5. Kaltenboeck B, Hehnen H, Vaglenov A. Bovine Chlamydophila spp. Infection : Do We Underestimate the Impact on Fertility ? 2005;29:1–15.
6. Agerholm JS. Coxiella burnetii associated reproductive disorders in domestic animals-a critical review. 2013;1–11.
7. Felleisen RSJ, Lambelet N, Bachmann P, Nicolet J, Gottstein B, Mu N. Detection of Tritrichomonas foetus by PCR and DNA Enzyme Immunoassay Based on rRNA Gene Unit Sequences. 1998;36(2):513–9.
8. Anderson ML. Infectious causes of bovine abortion during mid- to late-gestation. 2007;68:474–86.
9. Njiro SM, Kidanemariam AG, Tsotetsi AM, Katsande TC, Mnisi M, Lubisi BA. A study of some infectious causes of reproductive disorders in cattle owned by resource-poor farmers in Gauteng Province, South Africa. 2011;82:213–8.
10. Daw MA. MEDICAL MICROBIOLOGY LABORATORY MANUAL Second Edition 2009 MEDICAL MICROBIOLOGY Second Edition Department of Microbiology and Immunology Faculty of Medicine, Alfateh University Triboli, Libya. 2016;(November).
11. Elhassan AM, Fadol MA, Mohamed A, Elfahal A, Rahim A, Elhassan AM, et al. A cross sectional study on reproductive health disorders in dairy cattle in Sudan A cross sectional study on reproductive health disorders in dairy cattle in Sudan. 2018;(January 2015).
12. El-mahallawy HS, Kelly P, Zhang J, Yang Y, Zhang H, Wei L, et al. High seroprevalence of Coxiella burnetii in dairy cattle in China. 2015;10–3.
13. Kampa J, Chanlun A, Aiumlamai S, Alenius S. BVDV and BHV-1 Infections in Dairy Herds in Northern and Northeastern Thailand. 2004;45(3):181–92.
14. Chandranaik BM, Rathnamma D, Patil SS, Ranganatha S, Kovi RC, Akhila DS, et al. Epidemiology of bovine herpes virus-1 under different housing practices in cattle breeding stations. 2014;84(February):103–7.
15. Kathiriya J, Sindhi S, Mathapati B, Bhedi K. Seroprevalence of Infectious Bovine Rhinotracheitis ( BHV-1 ) in Dairy Animals with Reproductive Disorders in Saurashtra of Gujarat, India. 2018;7(03):1371–6.
16. Hovingh E, Veterinarian E, Tech V. Common Causes of Abortions Abortions in Dairy Cattle - I. 2009;
17. Dubey JP, Schares G. Epidemiology and Control of Neosporosis and Neospora caninum. 2007;20(2):323–67.
18. Sanhueza JM, Heuer C, West D. Contribution of Leptospira, Neospora caninum and bovine viral diarrhea virus to fetal loss of beef cattle in New Zealand. Prev Vet Med [Internet]. 2013;112(1–2):90–8. Available from: http://dx.doi.org/10.1016/j.prevetmed.2013.07.009
19. Derdour S, Hafsi F, Azzag N, Tennah S, Laamari A, Ghalmi F. Prevalence of the main infectious causes of abortion in dairy cattle in Algeria. 2017;337–43.
20. Astobiza I, Piñero A, Barandika JF, Hurtado A. Estimation of Coxiella burnetii prevalence in dairy cattle in intensive systems by serological and molecular analyses of bulk-tank milk samples. J Dairy Sci [Internet]. 2012;95(4):1632–8. Available from: http://dx.doi.org/10.3168/jds.2011-4721
21. Khan MH, Manoj K, Pramod S. Reproductive disorders in dairy cattle under semi-intensive system of rearing in North-Eastern India. 2016;9:512–8.