Volume 53 (2022)
Volume 52 (2021)
Volume 51 (2020)
Volume 50 (2019)
Volume 49 (2018)
Volume 48 (2017)
Volume 47 (2016)
Volume 46 (2015)
Volume 45 (2014)
Volume 44 (2013)
Volume 43 (2012)
Volume 42 (2011)
Volume 41 (2010)
Volume 40 (2009)
Volume 39 (2009)
A Study of the Relationship between TLR4 Gene and Clinical Mastitis in Holstein Dairy Cows in Iran


Volume 44, Issue 2 , August 2013, , Pages 141-148


  The Toll-like Receptor 4 (TLR4) is an innate immune protein on cell surfaces that identifies Lipopolysaccharide (LPS) of gram-negative bacteria. Genetic markers associated with innate responses during mastitis could help in selection of cattle to improve disease resistance. The objective of this study ...  Read More

An Association between the C>T Single Nucleotide Polymorphism of Bovine OPN Gene and Milk Production and Composition in Iran Holstein Cattle

Majid Pasandideh; Mohammadreza Mohammad-abadi; Alireza Torang; Ali Esmaeilizadeh kashkoueiyejh

Volume 42, Issue 3 , January 2011, , Pages 199-205

  Quantitative trait loci (QTL) affecting milk production traits on bovine chromosome 6 close to the OPN gene location have been identified through several whole genome scans. OPN is a phosphoprotein, synthesized in a variety of tissues and cells and secreted into body fluids. In this study, DNA was isolated ...  Read More

Age Distribution and Generation Interval Corresponding to Four Selection Pathways of Holstein Cattle in Iran

Saherreh Jowzi Shekalgoorani; AbdolAhad Shadparvar; Rasoul VaezTorshizi; Mohammad Moradi Shahrbabak

Volume 41, Issue 3 , December 2010, , Pages 223-229

  Average age distribution and generation interval were investigated in four different selection pathways. i.e., Sire of future Sires (SS), Sire of future Dams (SD), Dam of future Sires (DS) and Dam of future Dams (DD). Young Bulls pathway (YB) is also considered as a path that affects the generation interval ...  Read More

An Estimation of Genetic Trend for Production Traits and a Determination of the Impact of Some Factors on it in Iranian Holstein Cattle

Mohamad Saheb Honar; Mohamad Moradi Shahr Babak; Seyed Reza Miraei Ashtiani; Mohamad Bagher Sayad Nezhad

Volume 41, Issue 2 , September 2010

  Genetic trend for production traits were estimated in Iranian Holstein cattle using the first lactation data recorded by Cattle Breeding and Dairy Product Improvement Center of the State from 1991 to 2006. Effect of some factors on genetic trend was investigated using data from 18 large herds. (Co) variance ...  Read More

The Effect of Adjustment for Production Trait Records on Estimation of Variance Components and Genetic Evaluation in Iranian Holstein Cattle

bakhtiyar amini; mohammad moradi shahr babak; ardeshir nejati javaremi; mohammad bagher sayad nejad

Volume 40, Issue 2 , September 2009

  Adjusted milk yield for 305 days and two milking times along with actual first lactation records of 187138 Holstein cows were used to find out the effect of record adjustment on variance components estimation and on genetic evaluation. Records had been gathered by the Animal Breeding Center of Iran during ...  Read More

Trend of Inbreeding in Iranian Holstein Population

Reza Tohidii; Rasoul Vaez torshizi; Mohammad Moradi shahr babak; mohammad bagher sayad nejad

Volume 39, Issue 1 , February 2009

  A pedigree file of 382831 Holstein cows and bulls, collected from herds registered by Animal Breeding Center of Iran during 1967 to 1999, was used to calculate the inbreeding coefficient. The mean inbreeding coefficient for the whole population (male and female), on a base year of 1946, was 0.184%. The ...  Read More