Naslov
Quantitative insulin sensitivity check indexes in early postpartum cows and calves kept in a beef suckler system

Autori
Vranković, Lana ; Aladrović, Jasna ; Pipal, Ivana ; Beer Ljubić, Blanka ; Prvanović Babić, Nikica ; Stojević, Zvonko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
The Animal Biology / Vlizlo, Vasyl - Lavov : National academy of Agrarian science of Ukraine the Institute of Animal Biology, 2019, 73-76

Skup
19th Middle-European Buiatric Congress

Mjesto i datum
Lavov, Ukrajina, 22.05.2019. - 25.05.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
cows, calves, early postpartum period, insulin resistance, beef suckler system

Sažetak
The aim of our study was to determine indexes of insulin resistance (IR) in early postpartum period (pp) in cows and their calves kept in a beef suckler system. The study was conducted on 13 Simmental cows and their calves. We calculated following indexes values: RQUICKI (Revised Quantitative Insulin Sensitivity Check Index) and its modified version RQUICKIBHB, HOMA (Homeostatic Model Assessment) and QUICKI (Quantitative Insulin Sensitivity Check Index) based on serum concentrations of glucose, insulin, NEFA (non esterified fatty acids) and BHB (β-hydroxybutyrate), sampled 6, 12 and 48h and 7 and 14 d pp. Cows were grouped according to lactation number (2nd to 4th lactation, 1st group ; and 5th to 8th lactation, 2nd group) and calves according to gender. Results showed that RQUICKI was higher in 1st group of cows (p>0.05) and showed progressive increase during pp period in both groups. In 1st group of cows RQUICKI was lower 6 and 12h pp than 14d pp (p=0.01). HOMA was higher in 2nd group of cows (p>0.05) ; HOMA was higher 12h pp than 48h, 7 and 14 d pp (p=0.01) as well as 6h pp than 7 and 14d pp (p=0.01). QUICKI showed the same trend in both groups, progressive decrease from 6h to 14d pp (p=0.001, 1st group ; p=0.001, 2nd group). In calves, HOMA was higher in females (p>0.05). In females HOMA was lower 6h pp than 7 and 14d pp (p=0.03). RQUICKIBHB was higher in females than in males (p=0.03). RQUICKIBHB showed progressive decline from 6h pp to 14d pp in females (p=0.004). Changes in trends of IR indexes may help in analysis of decreased sensitivity or responsiveness to the metabolic actions of insulin as well as in determination of metabolic status of animals.

Izvorni jezik
Engleski

Znanstvena područja
Veterinarska medicina

POVEZANOST RADA