Naslov
Changes in biochemical and hematological parameters and metabolic hormones in Tsigai ewes blood in the first third of lactation

Autori
Antunović, Zvonko ; Novoselec, Josip ; Šperanda, Marcela ; Vegara, Mensur ; Pavić, Valentina ; Mioč, Boro ; Djidara, Mislav

Izvornik
Archiv für Tierzucht = Archives animal breeding (0003-9438) 54 (2011), 5; 535-545

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Tsigai ewes ; lactation ; blood ; parameters ; metabolic hormones

Sažetak
The aim of this investigation is to determine changes in concentrations of biochemical and haematological parameters, as well as metabolic hormones in the blood of Tsigai ewes in the first third of lactation. The study included 10 ewes Tsigai breed monitored during three periods of lactation: 20 days, 40 and 60 days of lactation. Ewes fed feed mixture (300 g/day) and meadow hay ad libitum. A significant decrease concentration of Ca and Na was recorded in the blood of sheep 40th days of lactation and later their increase during the 60th days of lactation. The opposite trend was determined for concentrations of P-inorganic. Also it was determined a significant decrease in Fe content and increase in the concentrations of glucose, triglycerides and total protein in the first third of lactation. In the blood of ewes 40th days of lactation it was found a significant decrease in activity of AST and LDH in contrast to ewes during 20th days of lactation. Concentrations of T3 and T4 hormones were slightly increasing in the first third of lactation, but the differences were not significant. The blood insulin concentrations were significant increased in the first third of lactation. Content haematological blood parameters in lactating ewes did not differ significantly and was within the reference values. Determining the concentration of biochemical and haematological parameters and concentrations of blood thyroid hormones and insulin in the first third of lactation are imposed as a precaution in order to better monitoring of Tsigai ewes during lactation.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA