Determination metabolic and nutritional status in dairy cows during early and mid lactation | Zendy

Radojica Djoković | Zendy; Zoran Ilić | Zendy; Vladimir Kurčubić | Zendy; Milan Petrović | Zendy; Violeta Caro-Petrović | Zendy; B. Milošević | Zendy; I. Omerovic | Zendy

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Determination metabolic and nutritional status in dairy cows during early and mid lactation

Author(s) -

Radojica Djoković,

Zoran Ilić,

Vladimir Kurčubić,

Milan Petrović,

Violeta Caro-Petrović,

B. Milošević,

I. Omerovic

Publication year - 2016

Publication title -

biotechnology in animal husbandry

Language(s) - English

Resource type - Journals

eISSN - 2217-7140

pISSN - 1450-9156

DOI - 10.2298/bah1601001d

Subject(s) - nefa , lactation , medicine , endocrinology , zoology , transaminase , dairy cattle , biology , chemistry , insulin , biochemistry , pregnancy , enzyme , genetics

The objective of the present study was to investigate nutritional and metabolic status in Simmental cows during early and mid-lactation. Fifteen early lactating cows and 15 mid lactating cows were chosen for the investigation. Blood samples were collected to measure beta-hydroxybutyrate (BHB), nonesterified fatty acids (NEFA), triglycerides (TG), glucose and the activity of aspartate transaminase (AST). Early lactation as compared to mid lactating cows were found to have significantly higher (P<0.05) blood serum concentrations of NEFA, BHB and AST and lower blood serum concentrations of glucose (P 0.05). Significantly negative correlations were observed between BHB and glucose (P<0.01), BHB and TG (P<0.05), NEFA and glucose (P<0.05). Significantly positive correlations were observed between NEFA and BHB (P<0.05), NEFA and AST (P<0.05), glucose and TG (P<0.01). The results suggest that these parameters can serve as useful indicators of the nutritional and metabolic status of dairy cows during lactation. [Projekat Ministarstva nauke Republike Srbije, br. TR 31001]

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