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 44 (2013)
Volume 43 (2012)
Volume 42 (2011)
Volume 41 (2010)
Volume 40 (2009)
Volume 39 (2009)
Research Paper
The effect of different levels of Vitamin E in semen extender during the cooling on Caspian stallion sperm quality

Iman Yousefian; Ahmad Zare-shahneh; Mahdi Zhandi; Majid Bahreini; Ghazaleh Izadpanah; Reza Noei; Mojtaba Emamverdi

Volume 45, Issue 1 , April 2014, Pages 1-8


  The purpose of this study was to determine the effects of different concentrations of vitamin E (Vit. E) in the quality of preserved stallion semen at 5ᵒC for a period of 48 h. Semen was collected and most (≥90%) seminal plasma removed by centrifugation at 600 × g. Pooled samples divided in ...  Read More

Research Paper
Determination of the impact of some factors on genotype imputation error rates for genome wide association studies in dairy cattle

Mohammad Sahebhonar; Mohammad Moradi Shahrbabak; Seyed Reza Miraei Ashtiani; Abbas Pakdel; Dorian J. Garrick

Volume 45, Issue 1 , April 2014, Pages 9-15


  In this study, effect of two genotype imputation strategies, relatedness between reference panel and test populations and minor allele frequency on imputation error rate were examined with using a stochastic simulated population. Reference panel and test populations were composed of 1,000 and 500 individuals, ...  Read More

Research Paper
Comparison of nutrients and cost-income from two alfalfa harvesting methods (hay or silage)

Davood Zahmatkesh; Hamid Amanlou; Ghader Dashti

Volume 45, Issue 1 , April 2014, Pages 17-25


  This study was conducted to evaluate consumption inputs, production costs, nutrient composition and performance in production of alfalfa hay and alfalfa silage. Therefore, data on alfalfa hay production were collected from 75 farms in Zanjan province, using a face to face questionnaire in the year 2012. ...  Read More

Research Paper
Genetic analysis of milk yield and open days traits of Holstein dairy cattle in Iran for first five lactation

Hossein Mehrban; Seyyed Mehdi Esmaeilifard; Mojtaba Najafi; Bita Abbasi mashaei; Ebrahim Asadi-Khashoei

Volume 45, Issue 1 , April 2014, Pages 27-36


  A data file containing 607662 (317608) milk (open days) records belonging 294417 (177838) Holstein cows that were calved from 1983 to 2008 was used. The bivariate repeatability model was used for data analyzing so that herd, calving year, calving month, days in milk (only for milk trait) and calving ...  Read More

Research Paper
Effect of different levels of vitamin C on queen laying rate and body protein percentage of worker in honey bee colonies (Apis mellifera L.)

Ardeshir Ahmadi; Gholamali Nehzati-paghale; Mohammad Amiri Zandi; Saeed Abbasi

Volume 45, Issue 1 , April 2014, Pages 37-42


  Role of vitamins in bee nutrition is very important especially in case of supplemental feeding with sugar and pollen substitutes. In this experiment effects of different levels of vitamin C on the rate of queen lying and workers body protein were studied. Experimental colonies had the same age queens ...  Read More

Research Paper
The effects of propolis and monensin in milk on performance, feed intake and digestibility in Holstein suckling calves

Peyman Paravian; Gholamali Nehzati; kamran Reza-yazdi; Mahdi Dehghan

Volume 45, Issue 1 , April 2014, Pages 43-50


  In order to surveying the effect of feeding propolis on performance, feed intake and digestibility in Holstein suckling calves, the experiment was designed in a completely randomized design with 4 treatments (diet) and 10 replicates (cattle) during 52 days. Treatments included: 1. Control (without monensin ...  Read More

Research Paper
Factors associated with mortality from birth to yearling age in Moghani lambs

Hamed Rezaei; Hosein Moradi Shahrbabak; Mohammad Moradi Shahrbabak; Mahdi Bayeriyar

Volume 45, Issue 1 , April 2014, Pages 51-58


  The data used in this research were according to survival rate records of 9700 lambs from 735 rams and 8082 ewes, which collected at Moghani Flock Breeding Research Station during the year 1365 to 1390. The frequency distribution causes of culling and survival distribution function of lambs to yearling ...  Read More

Research Paper
Modeling the lactation curve of Holstein dairy cows using the Sine function and comparing it with Dijekstra and Wood’s functions in a herd of Holstein dairy cow

Somayyeh Lotfi; Reza Lotfi; Ali Vahidian Kamyad; Homayoun Farhangfar

Volume 45, Issue 1 , April 2014, Pages 59-68


  Description of lactation curve were investigated using sine function, compare it with two functions (Dijekstra and Wood). The data contained 32233 dairy milk yield records from 93 first parity Iranian Holstein cows that had calving between Aug. 2008 and Jul. 2009. Actual milk production per day and subsequently ...  Read More

Research Paper
Effect of neutral detergent soluble carbohydrate source and addition roasted canola seed on growth performance and nutrient digestibility of lambs fed high concentrate diets

Sadegh Asadollahi; Mohsen Sari; Naeem Erfanimajed; Morteza Chaji; Morteza Mamouei

Volume 45, Issue 1 , April 2014, Pages 69-79


  In order to investigate the effect of partial replacement of barley starch with beet pulp soluble fiber with or without roasted canola seed on apparent nutrient digestibility, dry matter intake, daily weight gain, feed conversion ratio and rumenal pH 24 Arabian male lambs were used for 84 days in a completely ...  Read More

Research Paper
Effect of ensiled urea treated apple pomace on performance and carcass characteristics of Ghezel lambs

Ali Saleh Bahmanpour; Alireza Bayat; Mohammad Dadpasand; Mohammad-Javad Zamiri

Volume 45, Issue 1 , April 2014, Pages 81-88


  The effects of different levels (0, 10, 20 and 30 percentage of dry matter) of apple pomace ensiled with urea were investigated on 24 Ghezel male lambs in a completely randomized design with four treatments and six replicates. The average starting weight and age of the lambs were 31.27 ± 7.40 ...  Read More