the objective of this study was to evaluate the concentration of these acute phase proteins(serum amyloid a, milk amyloid a and serum haptoglobin) and alteration in hematological values in some inflammatory diseases in dairy cattle. fifty-six holstein dairy cows with some inflammatory diseases were used in this study including: subclinical mastitis, hematological infections (theileriosis and an...

The objectives of this retrospective cohort study were to determine the association heat stress exposure during transition period with production, health, reproduction, and survival first 90 days postpartum in dairy cows. A total 5,722 Holstein cows (2,324 heifers 3,397 cows) categorized into environmental condition (EC) groups based on average temperature humidity index (THI) as thermoneutral ...

When Rumensin (monensin sodium) was fed to dairy cows: • Services per conception, days open and calving interval were increased, and firstservice conception rate was reduced in the 22 g/ton group. Pregnancy rates and successful calving rates were similar for all treatment groups. All measures of reproductive efficiency for all doses were well within accepted industry standards. • The incidence ...

We determined the threshold proportion of polymorphonuclear leukocytes (PMNs) for a diagnosis of cytological endometritis (CEM), the risk factors for this condition, and its impact on reproductive performance in dairy cows. Uterine cytology was performed on 407 Holstein cows 4 weeks postpartum to determine the proportions of endometrial cells and PMNs. A receiver operator characteristics curve ...

Nutrition has an important impact on the reproductive performance of dairy cattle. Energy is the major nutrient required by adult cattle and inadequate energy intake has a detrimental impact on reproductive activity of the female bovine. Cows under negative energy balance have extended periods of anovulation. Postpartum anestrus, as well as infertility, is magnified by losses of body condition ...

Objective: Ceftiofur, a third-generation cephalosporin, is used as a usual antimicrobial drug in veterinary medicine. Positive efficiency of ceftiofur for treatment of retained fetal membrane (RFM) and acute puerperal metritis has been previously reported. Thus, this study was conducted to evaluate the efficiency of ceftiofur hydrochloride (CH) in prevention of uterine postpart...