Bovine reproductive diseases are endemic in Indonesia, but comprehensive information about their infectious causes is not available. Therefore, our aim for this study was to detect several infectious agents that cause reproductive diseases in Indonesian beef and dairy cows. A total of 152 cow serum samples collected by Faculty of Veterinary Medicine of Brawijaya University and Veterinary Disease Investigation Centre as a part of the mandatory and regularly surveillance system from three provinces during 2019–2020 were used. The samples were then sent to Indonesian Research Centre for Veterinary Science (IRCVS) for further detection of seven reproductive diseases by enzyme-linked immunosorbent assay (ELISA). Seven reproductive diseases to be tested in parallel are neosporosis, chlamydiosis, brucellosis, Q fever, bovine viral diarrhea (BVD), infectious bovine rhinotracheitis (IBR), and BHV-4 infection. The dominant reproductive diseases in Indonesian cows were BVD (45.69%), chlamydiosis (31.58%), IBR (20.53%), neosporosis (11.84%), and BHV-4 infection (10.53%). The seroprevalence of IBR, BHV-4 infection, neosporosis, and brucellosis varied significantly P < 0.05 between dairy and beef cattle. The most dominant reproductive diseases in aborted cows were chlamydiosis (45%), BVD (41%), and neosporosis (10%). The conclusion drawn from this study is that the dominant reproductive diseases in Indonesian cows are BVD, chlamydiosis, IBR, neosporosis, and BHV-4 infection. Chlamydiosis, BVD, and neosporosis are common among aborted cow. Chlamydiosis, neosporosis, and BHV-4 infection should be included in the national priority list in Indonesia. Control and preventive measures should be focused on high-risk areas and animals like stray cat and dog.

Colibacillosisis is an infectious disease in poultry caused by pathogenic Escherichia coli (E. coli) as primary or secondary agents. This study were aim to identify and test the pathogenicity ofE. coli isolated from chicken cloacal swabs. The samples used in this study were E. coli isolated from chicken cloacal swabs as many as 42 samples. The first stage in this research was subculturing E.coli in Eosin Methylene Blue Agar (EMBA) medium, then identified by Gram stain and biochemistry with Triple Sugar Iron Agar (TSIA), Sulfide Indole Motility (SIM), Simmons Citrate Agar (SCA) and Methyl Red Voges-Proskauer (MRVP). Pathogenicity of E. coli was tested by culturing in Blood Agar to see the results of hemolysin production and on Sorbitol-MacConkey Agar (SMAC) to see the ability of Sorbitol fermentation. The results obtained were 12 isolates was pathogenic E. coli looked from the results of the pathogenicity test in the Blood Agar and SMAC Agar.