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Prikaz rezultata 1-9 od 9
Endocrine and metabolic status of dairy cows during transition period
(Chulalongkorn Univ, Bangkok, 2014)
The objective of this study was to determine blood levels of cortisol, insulin, triiodothyronine (T3), thyroxine (T4), glucose, non-esterified fatty acids (NEFA), β-hydroxybutyrate (BHB), triglycerides (TG) and total ...
Effect of peripartum dietary energy supplementation on thyroid hormones, insulin-like growth factor-i and its binding proteins in early lactation dairy cows / Uticaj energetskog dodatka u ishrani na koncentraciju tireoidnih hormona, insulinu sličnog faktora rasta-i i njegovih vezujućih proteina u krvi krava tokom rane laktacije
(Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd, 2012)
The objective of this study was to examine the effect of dietary energy supplementation on hormones that are considered to be the main signals of a shift in energy balance around parturition. Sixty dry cows, 15 days before ...
Determination of blood variables tresholds in prediction of productive and reproductive performances in dairy cows: use of receiver operating characteristic (roc) analysis
(Univ Ljubljana, Veterinary Faculty, Ljubljana, 2016)
Decreased milk production and impaired reproductive performances of dairy cows provoke
huge economic losses in dairy farm industry. Those disturbances are mostly a consequence
of productive diseases (PD) that occurred, ...
Neutrophil phagocytosis and respiratory burst activity of dairy cows during the transition period and early lactation
(J Infection Developing Countries, Tramaniglio, 2018)
Introduction: Hormonal and metabolic changes, as well as energy imbalance, can affect health, production and reproductive performance of dairy cows. In the present study, we evaluated phagocytosis and respiratory burst ...
Propylene glycol energy supplementation during peripartal period in dairy cows and reproduction efficiency parameters / Energetska suplementacija propilen glikolom tokom peripartalnog perioda i parametri efikasnosti reprodukcije kod mlečnih krava
(Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd, 2012)
The aim of this work was to investigate the impact of two energy supplements based on propylene glycol in dairy cows diet on ovarian and follicular morphology, conception, insemination index and length of service period. ...
Field trial on glucose-induced insulin response in high-yielding dairy cows under different environmental temperatures
(Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd, 2017)
This study aimed to evaluate glucose-induced insulin response in cows exposed to different temperature-humidity index. Twenty early lactating Holstein-Friesian cows were divided into 2 equal groups based on season, as ...
Progesterone concentration in milk and blood serum and reproductive efficiency of cows after Ovsynch treatment
(Scientific Technical Research Council Turkey-Tubitak, Ankara, 2016)
An experiment was conducted to investigate the effects of hormonal synchronization of ovulation on progesterone concentrations in milk and blood serum and on reproductive performance. Sixty Holstein-Friesian cows averaging ...
Evaluation of metabolic status in Simmental dairy cows during late pregnancy and early lactation / Prosudba metaboličkog statusa mliječnih krava simentalske pasmine tijekom kasne gravidnosti i na početku laktacije
(Univ Zagreb Vet Faculty, Zagreb, 2013)
The objective of this experiment was to evaluate the metabolic status of late pregnant and early lactation dairy cows based on changes in characteristic blood metabolites. Blood samples were collected from 15 late pregnant ...
Influence of ovsynch-treatment on concentration of progesterone in blood serum and pregnancy rates after artificial insemination in cows [Einfluss einer Ovsynch-Behandlung auf die Progesteronkonzentrationen im Blutserum und Trächtigkeitsraten bei Kühen na
(Eugen Ulmer Gmbh Co, Stuttgart, 2014)
Fertiliy rate in high milk-yield dairy cows, with prolonged postpartum anestrus, was investigated after treatment by Ovsynch protocol. Thirty cows with follicular cysts or unovulated follicles (around 1.2 cm in diameter), ...