Quality and number of cumulus-oocyte complexes (COC) and concentrations of leptin and ghrelin in blood and follicular fluid depending on the body condition of cows

• Autorzy: Nowak T. , Jaskowski J.M. , Szczepankiewicz D. , Olechnowicz J.
• Języki publikacji: EN

Abstrakty

EN

The aim of our study was to investigate the effect of body condition on the number of ovarian follicles, the number and quality of COC-complexes and/or concentration of leptin (LEP), total and active ghrelin (TGHR and AGHR) in blood plasma and follicular fluids. Before slaughter all cows were divided into five classes according to their body condition scores (BCS). Body condition had no significant influence on the number of follicles and aspirated oocytes. The mean number of oocytes of a very good quality (Grade 1 and Grade 2) was 0.79 and 1.14 in cows with BCS 2.50 and 2.51-3.0, and was lower than 2.69, 2.66 and 2.0, respectively, aspirated from follicles in cows from group 3.01-3.5, 3.51-4.0 and > 4.0. Body condition influenced the number of COCs of a very good quality (Grade 1, P < 0.05). There was no relation between body condition and the number of oocytes grades 2 and 4. We found an interrelation between blood leptin concentration and its concentration in the follicular fluid (P < 0.01). No significant relationship exists between the BCS of cows and concentrations of leptin and active ghrelin in blood plasma and the follicular fluid.

Słowa kluczowe

EN

blood plasma; body condition; cow; cumulus-oocyte complex; follicular fluid; ghrelin; leptin; leptin concentration; nutritional status; oocyte; oocyte quality; farm animal; ovarian follicle

• Wydawca: -
• Czasopismo: Medycyna Weterynaryjna
• Rocznik: 2011
• Tom: 67
• Numer: 02
• Opis fizyczny: p.115-119,fig.,ref.

Twórcy

autor

Nowak T.

• Department of Veterinary, Faculty of Animal Breeding and Biology, Poznan University of Life Sciences, 52 Wojska Polskiego, 60-625 Poznan, Poland

autor

Jaskowski J.M.

autor

Szczepankiewicz D.

autor

Olechnowicz J.

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