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)
Estimation of genetic, environmental and phenotypic trends for economic lifetime of the Lori-Bakhtiari ewes

Moslem Beygi; Mahmood Vatankhah; Mostafa Faghani

Volume 45, Issue 3 , October 2014, , Pages 273-278

http://dx.doi.org/10.22059/ijas.2014.53784

Abstract
  In this study, the number of 1802 longevity records of ewes collected during 1989 to 2010 in Breeding Station of Lori-Bakhtiari sheep flocks were used to estimate of genetic, environmental and phenotypic trends for economic lifetime. The breeding values of a ewe’s lifetime were estimated by restricted ...  Read More

Effect of Non Genetic Factors Affecting the Survival of Lori-Bakhtiari Lambs from Birth to Yearling, utilizing Linear and Nonlinear Models

mahmoud vatankhah

Volume 43, Issue 3 , October 2013, , Pages 431-439

http://dx.doi.org/10.22059/ijas.2012.29350

Abstract
  Data utilized in this study were 6800 records of lambs’ life longevity, and survival rate from 263 sires and 1839 dams collected from 1989 through 2009, from the Lori-Bakhtiari flock at Shooli Station in Shahrekord. The data were analyzed, using Linear and Hazard Ratio models along with Weibul function. ...  Read More

Estimation of Economic Opportunities Per Cow in Smallholder Dairy Farms

mahmood vatankhah; mehrab faraji; aliakbar gharedaghi; alireza aghashahi

Volume 43, Issue 1 , June 2012, , Pages 91-102

http://dx.doi.org/10.22059/ijas.2012.24913

Abstract
  Four hundred and ninety five smallholder dairy farms in 52 villages of different cities in Chaharmohal and Bakhtiari province including 1321 lactating cows and totalling 2811 total mature cows (lactating and dry)were employed during winter 2009 to summer 2010 to estimate the economic opportunities as ...  Read More

Use Of Principal Components Analysis to Prediction Fat-tail Weight Trait in Lori-Bakhtiari Sheep

mohammadreza bakhtiarizade; mohammad moradi shahre babak; hossein moradi; mahmood vatankhah

Volume 43, Issue 1 , June 2012, , Pages 103-111

http://dx.doi.org/10.22059/ijas.2012.24914

Abstract
  The relationship between live body weight, body length, girth circumference, animal hight, upper, middle as well as lower width of fat-tail, fat-tail length, fat-tail gap length, fat-tail depth and fat-tail circumference along with fat-tail weight were determined using records of 731 Loribakhtiari sheep. ...  Read More

A Study of the Performance of some of Production, Reproductive and Economic Traits of Cattle in Smallholder Dairy Farms in Chaharmohalo Bakhtiari Province

Mahmoud Vatankhah; Mehrab Faraji

Volume 42, Issue 4 , March 2012, , Pages 285-296

Abstract
  Four hundered and ninety five (495) smallholder dairy farms active in 52 villages of different cities in Chaharmohalo Bakhtiari Province, keeping 1321 lactating within a total of 2811 mature cows (lactating and dry) were used. These herds were taken during winter 2009 to summer 2010 to assess some of ...  Read More

A Comparison of Breeding Objectives of Native Black Goat in Different Rearing Systems: 2. A Determination of the Economic Values

Mahmoud Vatankhah; MohammadAli Talebi; Mohsen Bagheri

Volume 41, Issue 3 , December 2010, , Pages 193-201

Abstract
  In this study, production, reproduction, management and economic parameters deduced from recordings of 5 flocks with 720 heads of native goats during an annual cycle of production in transhumance, village and farming systems were employed to determine the traits' economic values. The economic values ...  Read More