The objective of this study was to describe the genetic and phenotypic relationship between milk urea nitrogen (MUN) and reproductive traits in Iranian Holstein dairy cows. Test-day MUN data obtained from 57 301 dairy cows on 20 large dairy herds in Iran between January 2005 and June 2009. Genetic parameters for MUN and reproductive traits were estimated with a five-trait model using ASREML pro...

variace / covariance components of 227118 first lactaiom test-day milk yield records belonged to 31258 iranian holstein cows were estimated using nine random regression models. afterwards, different measures of persistency based on estimation breeding value were evaluated. three functions were used to adjust fixed lactation curve: ali and schaeffer (as), quadratic (le3) and cubic (le4) order of...

the main objective of the present study was to explore the feasibility of nonlinear mixed models to describe the somatic cell score (scs) lactation curves and to compare the fit of four nonlinear vs. two linear models when applied to scs lactation records in iranian holstein cows. the animal breeding center of iran provided the scc data. the data consisted of 445077 test-day observations from 6...

objective: salmonellosis is a bacterial disease with a rising prevalence in the cattle industry. it is most common in dairy calves one to ten weeks of age. salmonellosis has a serious economic impact on the cattle industry worldwide. methods: in may 2013, a three months old male holstein calf with the history of lateral recumbency was referred to veterinary hospital with severe depression, cach...

Disparate innate immune responses to persistent and acute Chlamydia pneumoniae infection in COPD Daniel Droemann1, Jan Rupp2, Torsten Goldmann3, Ulrike Uhlig4, Detlev Branscheid5, Ekkehard Vollmer3, Peter Kujath6, Peter Zabel1,7, Klaus Dalhoff7 1Medical Clinic, Research Center Borstel, 23845 Borstel, Germany 2Institute of Medical Microbiology and Hygiene, University of Schleswig-Holstein, Campu...

OBJECTIVE The aim was to evaluate gender differences in depression scores of Iranian and German medical students. METHODS Two hundred Iranian medical students (100 men and 100 women) and 200 German medical students (100 men and 100 women) were selected randomly and completed the English form of the self-rating Beck Depression Inventory (BDI). RESULTS Analysis gave a mean rating of 10.7 ± 6....

BACKGROUND Peripheral nerve sheath tumors (PNSTs) are frequently found in Danish cattle at slaughter. Bovine PNSTs share several gross and histopathological characteristics with the PNSTs in humans with heritable neurofibromatosis syndromes. The aim of the present study was to investigate a possible hereditary disposition to PNSTs in dairy cattle by statistical analysis performed on data from 5...

In Iran, the number of published articles has increased significantly in the basic and applied sciences including medicine and its subspecialties during the recent years. The present study reviewed Iranian science production in medicine, focusing on Iranian medical journals and assessing the current status of Iranian medical journals in several information databases. The study revealed that onl...

A total of 648 purebred Holstein and 319 backcross Holstein × Jersey dairy cattle were compared for production, reproduction, health, linear type, and growth traits. Animals were born between 2003 and 2009 and were housed in the University of Wisconsin-Madison Integrated Dairy Facility. All animals had Holstein dams; lactating dams were mated to unproven Holstein sires to produce purebred (cont...