Effect of season on plasma concentration of insulin-like growth factor-I and 1.25-dihydroxycholecalciferol in horses

• Autorzy: Luszczynski J. , Pieszka M.

Warianty tytułu

PL

Wpływ sezonu na koncentrację insulinopodobnego czynnika wzrostu I oraz 1,25 dwuhydroksycholekalcyferolu w osoczu krwi koni

• Języki publikacji: EN

Abstrakty

EN

During the summer season, plasma concentrations of insulin-like growth factor I (IGF-I) inArabian,Anglo-Arabian and Hucul horses as well as colts and fillies were higher compared to the winter season. Significant differences in IGF-I concentration between the seasons were found in Hucul horses (P≤0.01) and in colts (P≤0.05). Season had no significant effect on 1.25(OH)2-D3 concentration in the horse breeds studied. However, plasma concentrations of this hormone were always higher in the summer than in the winter season regardless of the breed (exceptAnglo-Arabians) and sex. Knowledge and monitoring of the physiological concentrations of IGF-1 and vitamin D3 metabolites in different seasons of the year, combined with analysis of growth rate during these periods may contribute to the improvement of the horse management and feeding system. Because of the association between these hormones and the frequency of developmental orthopaedic diseases, this information could be potentially used in veterinary practice.

PL

W sezonie letnim koncentracja IGF-I w osoczu krwi koni czystej krwi arabskiej, angloarabskich i huculskich a także ogierków i klaczek była wyższa w porównaniu z sezonem zimowym. Istotne różnice w stężeniu IGF-I pomiędzy sezonami wykazano u koni huculskich (P≤0,01) i ogierków (P≤0,05). Nie stwierdzono istotnego wpływu sezonu na koncentrację 1,25(OH)2-D3 u badanych ras koni. Obserwowano jednak, że stężenie tego hormonu w osoczu krwi koni bez względu na rasę (oprócz koni angloarabskich) i płeć było zawsze wyższe w sezonie letnim niż zimowym. Znajomość i monitorowanie fizjologicznych stężeń IGF-I i metabolitów witaminy D3 w różnych porach roku w powiązaniu z analizą tempa wzrostu w tych okresach może przyczynić się do usprawnienia systemu utrzymania i żywienia koni. Ze względu na istniejący związek pomiędzy tymi hormonami a częstotliwością występowania ortopedycznych chorób rozwojowych informacje te mogą też być potencjalnie wykorzystane w praktyce weterynaryjnej.

Słowa kluczowe

EN

animal breed; horse; animal sex; vitamin D3; plasma concentration; insulin-like growth factor-1; 1,25-dihydroxycholecalciferol; summer season; purebred Arabian breed; Anglo-Arabian horse; Hucul horse; winter season; feeding system

• Wydawca: -
• Czasopismo: Acta Scientiarum Polonorum. Zootechnica
• Rocznik: 2011
• Tom: 10
• Numer: 3
• Opis fizyczny: p.45-54,fig.,ref.

Twórcy

autor

Luszczynski J.

• Department of Horse Breeding, University of Agriculture in Krakow, Mickiewicza 24/28, 30-059 Krakow, Poland

autor

Pieszka M.

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