Zaštita energetskog metabolizma krava u peripartalnom periodu upotrebom propilen-glikola u hrani / Protection of energy metabolism in cows by application of propylene glycol in food during periparturient period
2013
Cincović, Marko R. (Poljoprivredni fakultet, Novi Sad (Srbija)) | Belić, Branislava (Poljoprivredni fakultet, Novi Sad (Srbija)) | Toholj, Bojan (Poljoprivredni fakultet, Novi Sad (Srbija)) | Kovačević, Zorana (Poljoprivredni fakultet, Novi Sad (Srbija))
Early lactation is characterized by a negative energy balance in dairy cows due to start lactation. this situations leads to decreased glucose and increased use fat reserves for energy. the high consumption of fat metabolism leads to numerous health disorders (fatty liver) and cow productivity. It is assumed that the application gluckoplastic materials (propylene-glycol) in the peripartuirient period afect the protection of energy metabolism. Cows receiving propylene glycolhave higher glucose and lower concentrations nonesterified fatty acid (NEFA) and total bilirubin (TBIL) in the week before calving, while the difference in the concentration of beta-hydroxybutyrate (BHB) did not exist. Visible effects of propylene glycol are present when the metabolic profile of the exam period after calving. Cows receiving propylene glycol have a significantly lower level of NEFA and BHB and TBIL, a significantly higher glucose. The proportion of cows that biochemical parameters indicating a negative energy balance after calving was significantly lower in the group that received propylene glycol. The use of propylene glycol effectively protects the energy metabolism of cows before and after calving.
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