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Metabolic profile and hormonal status comparison between prımıparous and multıparous non-cyclıc cows
- Source :
- Macedonian Veterinary Review, Vol 41, Iss 2, Pp 195-201 (2018)
- Publication Year :
- 2018
- Publisher :
- Ss.Cyril and Methodius University, Skopje, 2018.
-
Abstract
- 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.
- Subjects :
- static ovary
metabolic profile
P4
E2
ultrasound
cow
Veterinary medicine
SF600-1100
Subjects
Details
- Language :
- English
- ISSN :
- 14097621 and 18577415
- Volume :
- 41
- Issue :
- 2
- Database :
- Directory of Open Access Journals
- Journal :
- Macedonian Veterinary Review
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.16897d5398844c1a98c97ed61f428b4
- Document Type :
- article
- Full Text :
- https://doi.org/10.2478/macvetrev-2018-0022