Continuous milking (CM) of bST-supplemented primiparous cows results in production losses of 20 to 25%, suggesting mammary growth was inhibited. We hypothesized continuous (throughout late gestation and early lactation) bST supplementation and/or early-lactation increased milking frequency (IMF) would alleviate production losses in CM glands through improved mammary epithelial cell (MEC) functi...

Oxidative stress (OS) plays a key role in the initiation or progression of numerous diseases, and dairy cows undergo OS at the transition period. However, discrepancies between methodologies make it difficult to make comparisons between studies, and therefore research on this topic may not be implemented in farms. This study aims to test under field conditions the use of an oxidative stress ind...

The metabolic alterations associated with the increase in milk production make transition period critical to health of dairy cows, usually leading a higher incidence disease periparturient animals. In this manuscript, we describe use NMR-based untargeted metabolomics follow how these changes impact serum metabolome group 28 cows no initial clinical diseases. Principal component analysis (PCA) 1...

The objective of the present study was to evaluate effects an antioxidant and anti-inflammatory compound found in rosemary plants (Salvia rosmarinus) named carnosic acid during transition period dairy cows. From day 1 3 after calving, 16 multiparous Holstein cows received a daily intravenous infusion either 500 mL saline (NaCl 0.9%; Saline; n = 8) or at rate 0.3 mg/kg BW supplied (CA; 8). Blood...

Dynamic changes in an organism of heifers at the end pregnancy, and primiparous cows early lactation, may imply morphological parameters. Their evaluation contribute to a better understanding changes, occurring pregnant lactating young cows. Hence, aim study was investigate, analyze evaluate hematological parameters peripheral blood (RBC, MCV, HGB, MCH, MCHC, WBC, PLT HCT) heifers/primiparous c...

The aim of the present study was to evaluate the indicators of oxidative stress (malondialdehyde [MDA]) and antioxidant status (ferric reducing ability of plasma [FRAP]; superoxide dismutase [SOD]; glutathione peroxidase [GSH-Px]; selenium [Se]; vitamin E) in dairy cows of the Slovak Pied cattle from 3 weeks before parturition to 9 weeks after parturition. The mean MDA concentration was signifi...

Plasma samples were obtained before and during parturition from conscious rats implanted chronically with a jugular cannula. Rats were either allowed to remain in their nesting cage throughout parturition, or were moved immediately following the birth of the second or third pup into an empty glass chamber. The time-course of parturition was prolonged for mother rats which were moved in mid-part...

In ungulates, parturition is correlated with a reduction in movement rate. With advances in movement-based technologies comes an opportunity to develop new techniques to assess reproduction in wild ungulates that are less invasive and reduce biases. DeMars et al. (2013, Ecology and Evolution 3:4149-4160) proposed two promising new methods (individual- and population-based; the DeMars model) tha...