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 Phenotypic and Genetic Study of Production Traits of Iranian Buffalloes

karim hasan poor; mohammad moradi shahre babak; mostafa sadeghi; davood kianzad

Volume 43, Issue 2 , September 2012, , Pages 279-286

http://dx.doi.org/10.22059/ijas.2012.28536

Abstract
  To study the effects of environmental factors on milk and fat yields (240day) traits of Iranian buffaloes, 22596 and 22165 records were utilized for milk and fat yield traits, respectively. Uni and bivariate analysis for estimation of (co)variation components of the traits were done in five lactations. ...  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

Abstract
  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

Estimation of Genetic Trend for Production Traits of Holstein Cattle in Iran

mohammad razm kabir; ardeshir nejati javaremi; mohammad moradi shahr babak; amir rashidi; mohammad bagher sayad nejad

Volume 40, Issue 1 , June 2009

Abstract
  Data related to Holstein dairy cattle from 1987 to 2004 were obtained from Animal Breeding Center of Iran to estimate the genetic and phenotypic trends. Variance components and genetic parameters of the first lactation records were estimated using Restricted Maximum Likelihood Method and AIREML algorithm ...  Read More