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)
Pricing of raw milk based on main dairy products in the Iran market

Masoumeh Tavakolnia; Ali Sadeghi-Sefidmazgi; Narges Shirvani-Brojeni; gholamreza ghorbani

Volume 51, Issue 1 , May 2020, , Pages 9-16

https://doi.org/10.22059/ijas.2020.287304.653729

Abstract
  A multiple-component pricing (MCP) method for the purchase of milk by dairy processors in Iran was developed and compared with the current procedure, reference on percentage differential pricing (PDP) method. Data on the quantity and quality of raw milk and dairy products, and economic data relating ...  Read More

Phenotypic analysis of abortion incidence in Iranian Holstein cows

Hamideh Keshavarzi; Ali Sadeghi-Sefidmazgi; Gholamreza Ghorbani; Rasoul Kowsar

Volume 47, Issue 3 , December 2016, , Pages 409-419

https://doi.org/10.22059/ijas.2016.59796

Abstract
  This study was performed to investigate the incidence of abortion based on different definitions and, the effect of climate and herd size on abortion as well as its phenotypic trend. Using calving records collected from 16 dairy herds from years 2004 through 2014. Incidence rate and analysis of affecting ...  Read More

Physical characteristics, chemical composition and protein fractions of Iran sugar beet pulps compared with tabular values of Cornell net carbohydrate and protein system

Nima Naderi; Gholam-Reza Ghorbani; Ali Sadeghi Sefidmazgi

Volume 47, Issue 3 , December 2016, , Pages 473-480

https://doi.org/10.22059/ijas.2016.59923

Abstract
    The aim of this study was to evaluate the physical characteristics, chemical composition and protein fractions of sugar beet pulp produced in Iran and comparing them with the tabular values of Cornell net Carbohydrate and Protein System. A total of 39 samples of 13 different sugar factories were ...  Read More

Effects of summer and winter temperature–humidity index on performance of some reproductive traits of high producing dairy cows

Hadi Dashti; Ahmad Riasi; Mohammad Ali Edris; Golam-Reza Gohrbani; Hossein Omidi-Mirzaei

Volume 47, Issue 2 , October 2016, , Pages 321-327

https://doi.org/10.22059/ijas.2016.59037

Abstract
  The aim of this study was to consider reproductive performance parameters and blood progesterone concentration changes in high-producing dairy cows (39±2 kg per day) after artificial insemination, in summer and winter. 270 heads of Holstein dairy cattle were choose in three big dairy farms, and ...  Read More

Reproductive consequences of using sexed semen in Holstein dairy herds of Isfahan province

Ali Jabar Zareh; Ali Sadeghi-Sefidmazgi; Gholam Reza Ghorbani

Volume 46, Issue 3 , October 2015, , Pages 271-276

https://doi.org/10.22059/ijas.2015.56421

Abstract
  The objective of this study was to explore the reproductive consequences of using sex-sorted semen on sex ratio, conception rate and reproductive disorders (dystocia, abortion, stillbirth) in Holstein heifers. Reproduction performances records which were collected during 2006 to 2013 from 4 large dairy ...  Read More

Effects of Feeding Wheat Factory Sewage on Performance, Nutrient Digestibility and Blood Metabolites in Finishing Male Calves

ehsan kamalian; taghi ghourchi; mohammad khorvash; shahriar kragar; gholamreza ghorbani; saeed zeredaran; masoud boroumand

Volume 43, Issue 3 , October 2013, , Pages 369-377

https://doi.org/10.22059/ijas.2012.29344

Abstract
  Fifteen Holstein male calves (416 ± 35 kg initial BW; mean ± SD) were employed in a replicated 3 × 3 Latin square test to investigate the effect of partial replacement of barley grain by Wheat Factory Sewage (WFS) within three 22-d periods including 16 d of adaptation and 6 d of data collection. The ...  Read More

Protein Fractionation of some Feedstuffs Used in Iran Based on Cornell Net Carbohydrate and Protein System

Seyed Meysam Tabatabaei; Yousef Rouzbehan; Gholamreza Ghorbani

Volume 42, Issue 2 , October 2011, , Pages 115-123

Abstract
  The Cornell Net Carbohydrate and Protein System (CNCPS) model has recently been increasingly employed in preparation of balanced feed ration of dairy cattle in Iran. However, a lack of appropriate characterization of the feeds has restricted the model's application. This study was conducted to evaluate ...  Read More

Effects of Protected Fat Supplements on Performance of Early Lactating Holstein Cows

mehdi ganj khanloo; kamran reza yazdi; gholam reza ghorbani; hossein moravej; mehdi dehghan banadaki; mohammad reza emami

Volume 40, Issue 1 , June 2009

Abstract
  This study was conducted to evaluate production response of early lactating cows to rumen protected fats. Twelve (nine multiparous and three primiparous) Holstein cows (26±4 d in milk) were empolyed in a replicated 3×3 Latin Square Design of 21-d periods. Each period consisted of 14 days of adaptation ...  Read More