Evaluation of the metabolic status of Simmental dairy cows in early and mid lactation
Journal Title: Animal Science Papers and Reports - Year 2013, Vol 31, Issue 2
Abstract
Fifteen early-lactation cows and 15 mid-lactation cows were chosen for the analysis. Blood samples were collected to measure the beta-hydroxybutyrate (BHB), non-esterified fatty acids (NEFA), triglycerides (TG), glucose (Glu), total protein (TP), albumin (ALB), total bilirubin (TB), urea (U) and the activity of aspartate transaminase (AST) and gamma-glutamyl transferase (GGT). Earlylactation cows showed significantly higher (P<0.05) values of serum BHB and NEFA, and lower of (P<0.05) glycemia levels compared to mid-lactation cows. High lipomobilization (NEFA >0.4 mmol/l) and subclinical ketosis (BHB >1.2 mmol/L) were detected in 6 (40%) and 14 (94.4%) early-lactation cows, respectively, and in none of the mid lactation cows. AST activities above 100 IU/l were detected in two early-lactation and none of the mid-lactation cows. TG concentrations below 0.12 mmol/l were found in 7 (44%) early-lactation and 2 (13.3%) mid-lactation cows. Glucose levels were below 2.5 mmol/l in 10 (66.6%) early-lactation and 5 (33.3%) mid-lactation cows. Early-lactation cows showed lower blood serum concentrations of TG (P>0.05), ALB (P>0.05), TP (P<0.05), U (P>0.05) and GTT (P>0.05) activities and higher concentrations of TB (P>0.05) and AST activities (P<0.05), as compared to mid-lactation cows. These metabolic characteristics were correlated with DMI and energy balance (EB). Blood serum values for glucose, TG, BHB, NEFA and AST showed that earlylactation cows suffered from metabolic disturbances, associated with ketosis, and some degree of hepatic lesions, probably due to fat infiltration. These serum parameters may have a key role in evaluating the metabolic status of dairy cows.
Authors and Affiliations
Radojica Djoković, Vladimir Kurćubić, Zoran Ilić, Marko Cincović, Natalija Fratrić, Milun D. Petrović, Milan P. Petrović
Keywords
Related Articles
- EP ID EP70616
- DOI -
- Views 146
- Downloads 0
Effect of dietary supplementation with Saponaria officinalis root on rumen and milk fatty acid proportion in dairy cattle
The objective of the present study was to evaluate the impact of powdered Saponaria officinalis (SO) root on fatty acid (FA) proportion in the rumen fluid and milk of dairy cows. The SO is a good source of triterpenoid s...
Immunohistochemical distribution of c-Kit and its gene expression via real-time PCR in skin tissue of goats with a black and white coat colour
The signaling pathway of the stem cell factor and its receptor, c-Kit, plays an important physiological role in melanogenesis. The expression of c-Kit was investigated using real-time quantitative PCR and immunohistochem...
Development of cost-effective tetra-ARMS PCR for detection of FecB genotype in sheep
The FecB gene has been shown to be crucial in reproduction in many sheep breeds. It is a single nucleotide polymorphism (SNP) located in the bone morphogenetic protein receptor IB (BMPRIB) gene. The current methods for g...
The indel polymorphism in cattle amelogenin gene (AMEL) and its significance for the identification and evolutionary studies
Nucleotide and amino acid sequences of cattle amelogenin, the major protein of forming enamel, were analysed by screening 1547 samples collected from cattle of various breeds. Sequenced was the part of cattle exon six of...
Approximation of reliability of single-step genomic breeding values for dairy cattle in the Czech Republic
The method for approximating reliability of genomic breeding values in the single-step genomic BLUP evaluation was tested on milk production data from dairy cattle in the Czech Republic. The reliability of young dairy bu...