Relations between blood plasma lipids, glucose and urea concentrations in cows in post partum period and their reproductive performance

• Autorzy: Machal L. , Chladek G. , Hibner A. , Zizlavsky J.

Warianty tytułu

PL

Zależności pomiędzy poziomem lipidów, glukozy i mocznika w surowicy krwi krów w okresie poporodowym a ich użytkowością reprodukcyjną

• Języki publikacji: EN

Abstrakty

EN

Blood samples were taken from 134 Holstein cows between day 20 to 100 postpartum to determine the concentration of urea, cholesterol, glucose and total lipids and to define their relation to the reproductive performance traits: interval (I), service period (SP) and insemination index (II). Investigations were carried out in monthly intervals from October 1996 to October 1997. Average values of plasma urea, total lipids, cholesterol and glucose for the entire period studied were 5.78 mmol.1⁻¹, 3.61 g.l⁻¹, 3.34 mmol. l⁻¹ and 3.61 mmol. l⁻¹, respectively. High concentration of blood urea was related negatively with the value of the insemination index (rp = -0.51). When the average concentrations of total lipids were low in plasma in the specified time (month) negative correlations were found between total lipids and the length of service period (rp = from -0.23 to -0.54) and value of the insemination index (rp = -0.42). The concentration of plasma total lipids increased in time from post partum. Traits of reproductive performance were affected by the internal environment. Especially negative influences were observed when the concentration of plasma urea as well as total lipids and cholesterol increased or decreased abnormally.

PL

Badano kształtowanie się poziomu cech użytkowości rozpłodowej (I - przestoju poporodowego [okres od porodu do pierwszej inseminacji], SP - okresu międzyciążowego, II - indeksu inseminacji) krów rasy holsztyńskiej w zależności od poziomu lipidów całkowitych (TL), cholesterolu (Chol), glukozy (Gluc) i mocznika (U) w surowicy krwi. Próbki krwi pobierane były raz w miesiącu, od października 1996 do października 1997, od 134 krów między 20 a 100 dniem po porodzie. Średnie wartości poziomu TL, Chol., Gluc. i U za cały okres badań wynosiły odpowiednio: 3.61 g.l⁻¹, 3.34 mmol.l⁻¹ i 3.61 mmol.l⁻¹, 5.78 mmol. l⁻¹,. W okresie występowania wysokiego poziomu mocznika we krwi krów stwierdzono istnienie ujemnej zależności między jego poziomem a wartością indeksu inseminacji (rp = - 0.51). Poziom lipidów całkowitych w surowicy ulegał podwyższeniu w miarę zwiększania się odstępu czasu od porodu. Gdy średnia koncentracja lipidów całkowitych była w danym miesiącu (okresie żywienia) niska stwierdzono ujemne zależności między poziomem lipidów całkowitych i długością SP (rp = -0.23 i -0.54) oraz wartością indeksu inseminacji (rp = -0.42). Uzyskane wskaźniki użytkowości rozpłodowej krów modyfikowane były poprzez środowisko wewnętrzne - negatywne zależności występowały, gdy poziomy mocznika lub lipidów całkowitych i cholesterolu ulegały zwiększeniu, lub zmniejszeniu poza poziom przyjęty za normalny.

Słowa kluczowe

EN

relation; blood plasma; lipid concentration; cholesterol concentration; glucose concentration; urea concentration; cow; Holstein breed; postnatal period; reproductive performance

• Wydawca: -
• Czasopismo: Zeszyty Naukowe Akademii Rolniczej we Wrocławiu. Zootechnika
• Rocznik: 1999
• Tom: 45
• Opis fizyczny: p.181-194,fig.,ref.

Twórcy

autor

Machal L.

• Department of Livestock Breeding, Mendel University of Agriculture and Forestry Brno, Brno, Czech Republic

autor

Chladek G.

• Department of Livestock Breeding, Mendel University of Agriculture and Forestry Brno, Brno, Czech Republic

autor

Hibner A.

• Department of Cattle Breeding and Milk Production, University of Agriculture, Wroclaw, Poland

autor

Zizlavsky J.

• Department of Livestock Breeding, Mendel University of Agriculture and Forestry Brno, Brno, Czech Republic

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