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 39 (2009)
Effect of Rapeseed Oil on Performance and Carcass Characteristics of Holstein Male Calves

mehdi eftekhari; kamran rezayazdi; ali nikkhah; ardeshir nejati javaremi

Volume 40, Issue 2 , September 2009

Abstract
  Twenty-four Holstein male calves (BW=217±57kg) were employed to evaluate the effects of rapeseed oil supplementation on growth, carcass as well as on meat quality and fatty acid content of longissimus thoracis muscle in a completely randomized design. The calves were divided into three groups and allocated ...  Read More

Optimization of Progeny Testing Programs for Iranian Holstein Dairy Cattle

saeed shadpoor; abdolahad shadparvar; naghmeh ayooghi

Volume 40, Issue 2 , September 2009

Abstract
  A deterministic model was employed to simulate various progeny testing programs compatible with the conditions of Holstein dairy cattle population in Iran. In simulated programs, the selection intensity of bulls was increased by increasing the ratio of cow population in mate with young bulls. Selection ...  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

Abstract
  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

The Use of Nonlinear Programming in Diet Formulation Based on Maximum Profit in Broiler Chicks

alireza safamehr; abolfazl bashiri; masoud mostashari; mehrnoosh mirzaii

Volume 40, Issue 2 , September 2009

Abstract
  Linear Programming is a helpful and applied method for diet formulation based on minimum cost, but the minimum cost does not always mean maximum profit. This study was carried out to introduce a new diet formulation method based upon maximum profit to be replaced for minimum cost method. A total of 400 ...  Read More

Effects of Monensin and Propylene Glycol on Milk Production, Milk Composition and some Blood Metabolites in Holstein Lactating Cows

heshmat-o-lah bahrami yekdangi; kamran rezayazdi; mehdi dehghan banadaki; ardeshir nejati javaremi

Volume 40, Issue 2 , September 2009

Abstract
  The effects of Monesin and propylene glycol on feed intake, milk production, and composition as well as some blood metabolites of 16 primiparous and multiparous Holstein lactating cows (60±30 Days In Milk (DIM), milk production of 33±3 Kg/day) were evaluated. Cows were experimentally in a arranged ...  Read More

Effect of Withdrawing Vitamin and/or Trace Mineral Premixes from Grower and Finisher Diets of Broilers

abldol-reza kamyab; alireza mohammad hosseini; mohammad moradi shahr babak

Volume 40, Issue 2 , September 2009

Abstract
  An experiment was conducted to evaluate the effect of withdrawing vitamin and/or trace mineral premixes from grower and finisher diets of broilers. A 2×4 factorial arrangement of treatments, consisting of four diets and two-removal times (from 28 to 49, and from 35 to 49 days of age) was utilized. The ...  Read More

Influence of Environmental Factors Affecting the Shape of Lactation Curve in Iranian Buffalo Ecotypes

javad rahmani nia; hamid reza mirzaii; homayoon farhang far; naser emam jomeh; mohammadbagher sayad nejad

Volume 40, Issue 2 , September 2009

Abstract
  The objective of this study was to determine the effect of some environmental factors on the parameters and characteristics of the lactation curve in Iranian Buffalo ecotypes. The data consisted of 53222 test-day records in various stages of lactation and different parities recorded from 743 herds by ...  Read More

Estimation of Genetic Parameters for First Lactation Production and Reproduction Traits in Iranian Holstein Cows

sajad toghyani; ablolahad shadparvar; mohammad moradi shahr babak; mohammad dadpasand

Volume 40, Issue 2 , September 2009

Abstract
  To estimate the genetic parameters for production and reproduction traits in Holstein cows, information from 15 herds recorded by Animal Breeding Center of Iran during 1980 – 2004, were employed. Estimations were made using restricted maximum likelihood method under an animal model ranging DF-REML ...  Read More

Effects of Drying, Ensiling or Addition of PEG on the Nutritive Value of Pistachio By-products Hull

esmat bagheri poor; yousef roozbehan; daryoosh alipoor

Volume 40, Issue 2 , September 2009

Abstract
  The aim of the present study was to evaluate the effects of sun-drying, ensiling and addition of Polyethylene Glycol (PEG) on deactivation of tannins in the Pistachio By-products Hull (PBH). The chemical composition, protein quality and phenolic compounds of fresh pistachio by-products hull, sun-dried ...  Read More