ORIGINAL_ARTICLE Metabolic profile and hormonal status comparison between prımıparous and multıparous non-cyclıc cows Several reports indicated that a large proportion of dairy cows have not resumed cyclicity until day 60 after calving. These cows are traditionally classified as non-cycling (anoestrous or anovular cows). Static ovaries (SO, lack of luteal tissue and follicles > 8 mm, and progesterone < 0.5 ng/mL) could be a possible underlying reason that contributes to a non-cycling status. Although SO affects both primiparous (PP) and multiparous (MP) cows, PP cows are more prone to be non-cycling than MP. Therefore, this study aims to compare the metabolic profiles and hormonal status between non-cycling PP and MP cows diagnosed with SO. One hundred and twenty one animals that did not express signs of oestrus until day 60 postpartum were grouped by parity (PP, n=58 and MP, n=63), then blood sampled and examined using transrectal ultrasonography. Blood samples were collected before the ultrasonographic examination. Out of those, 42 PP (72.4%) and 28 MP (44.4%) were diagnosed as non-cycling (bearing SO). Serum concentrations of triglycerides, cholesterol, total protein and albumin did not differ between parity groups. The glucose concentrations in PP cows (1.43 ± 0.59 mmol/L) and MP cows (1.69 ± 0.71 mmol/L) did not differ, however, they were less than the normal physiological concentration. In addition, no differences were detected between parity groups for concentrations of NEFA, β-HBA, progesterone and estradiol. In summary, we concluded that non-cycling PP and MP cows bearing SO have similar hormonal status and metabolic profiles. https://macvetrev.mk/Files/Article/2020/10.2478/macvetrev-2018-0022/macvetrev-2018-0022.pdf 2018-10-15T09:00:00 195 201 10.2478/macvetrev-2018-0022 static ovary metabolic profile P4 E2 ultrasound cow Besir Jasari false 1 Ministry of Agriculture Forestry and Water Economy, R. of Macedonia AUTHOR Branko Atanasov false 2 Faculty of Veterinary Medicine Skopje, Ss. Cyril and Methodius University, Lazar Pop Trajkov 5/7, 1000 Skopje, R of Macedonia AUTHOR Irena Celeska false 3 Faculty of Veterinary Medicine Skopje, Ss. Cyril and Methodius University, Lazar Pop Trajkov 5/7, 1000 Skopje, R of Macedonia AUTHOR Miroslav Radeski false 4 Faculty of Veterinary Medicine Skopje, Ss. Cyril and Methodius University, Lazar Pop Trajkov 5/7, 1000 Skopje, R of Macedonia AUTHOR Martin Nikolovski false 5 Faculty of Veterinary Medicine Skopje, Ss. 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