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)
The effect of replacement soybean meal with fish meal on milk production, milk ‎composition and reproductive performance in repeat breeder Holstein cows ‎

Farhad Kamali Dehkordi; Hamid Amanlou; Nima Sadeghi Broujeni

Volume 52, Issue 4 , February 2022, , Pages 271-283

http://dx.doi.org/10.22059/ijas.2021.329251.653844

Abstract
  The objective of this experiment was to determine the effects of fish meal supplementation on productive and reproduction performance in repeat breeder Holstein cows. Two hundred and sixty-one multiparous Holstein cows with at least three consecutive unsuccessful inseminations, without clinically detectable ...  Read More

Meta-analysis of transcriptomic data of mammary gland infected by Escherichia coli Bacteria in dairy cows

Somayeh Sharifi; Abbas Pakdel; Esmaeil Ebrahimie

Volume 48, Issue 3 , December 2017, , Pages 343-352

http://dx.doi.org/10.22059/ijas.2017.232123.653524

Abstract
  Identification of disease-causing genes that underlie complex traits such as susceptibility to disease not only can improve diagnosis and the prevention of illness, but also help breeder to select resistance animals against diseases. In the current study to aim the higher power of statistical analysis ...  Read More

Effects of tylosin injection in dry period on the performance and serum chemistry in dairy cows after parturition

Shahrzad Jozghassemi; Hamid Amanlou; Mehdi Dehghan-banadaki; T.G. Nagaraja

Volume 48, Issue 3 , December 2017, , Pages 379-389

http://dx.doi.org/10.22059/ijas.2017.238769.653546

Abstract
  To investigate the effects of tylosin injection in dairy cows at dry period on performance, milk composition and some blood parameters in subsequent lactation, 120 Holstein cows with a mean weight of 720±20Kg were used. Treatments were no tylosin (treatment 1; control group), injected 0.025 (treatment ...  Read More

The application of copulas approach in determining heat stress based index insurance premium for dairy cows in Damavand county

Afsaneh Nikoukar; Sasan Torabi

Volume 48, Issue 3 , December 2017, , Pages 411-427

http://dx.doi.org/10.22059/ijas.2017.235025.653533

Abstract
  Designing and implementing temperature-humidity index insurance is a proper risk management tool that can lower animal breeder loss against heat stress and can lead to their income stability. Given this important issue in the present study, this insurance system has been designed for dairy cattle production ...  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

http://dx.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

Effects of monensin supplementation alone or in combination with Methafix on milk production and composition, ruminal parameters and serum metabolites of lactating dairy cows

Arash Azarfar; Younes Satari; Ali Kiani; Heshmatollah Khosarvinia; Majid Khaldari

Volume 47, Issue 2 , October 2016, , Pages 245-260

http://dx.doi.org/10.22059/ijas.2016.59030

Abstract
  This study was conducted to evaluate the effects of inclusion of monensin alone or in combination with Methafix (a commercial product containing malate and fumarate) in the diets of lactating dairy cows on ruminal parameters and serum metabolites. Four multiparous Holstein lactating dairy cows (657± ...  Read More

Effects of pioglitazone on ovulation and selected postpartum diseases in Holstein cows

Ali Reza Yousefi; Hamid Kohram; Ahmad Zare Shahneh; Mohammad Javad Zamiri; Fateme Ghaziani; Ali Rezaei Roodbari

Volume 45, Issue 4 , January 2015, , Pages 343-351

http://dx.doi.org/10.22059/ijas.2014.54353

Abstract
  The aim of the present study was to determine the effect of dietary supplementation of pioglitazone (PGT) during transition period on the ovarian function and the incidence of several diseases after parturition. Eighty Holstein cows were randomly allocatted to four treatment groups (n=20) using a 2×2 ...  Read More

Effect of Different Levels of Vitamin E and Soybean Oil on Production Performance and on Mammary Gland Health in Holstein Cows

Mohsen Bayat; Hasan Ali Arabi; Mohammad Mahdi Tabatabaei; Ali Asghar Saki; Dariush Alipour; Pouya Zamani; Ahmad Ahmadi; Zahra Zamani; Amir Hosein Dezfoulian

Volume 41, Issue 4 , March 2011, , Pages 299-307

Abstract
  This experiment was conducted to determine the effect of feeding Soybean Oil (SO) along with vitamin E on performance and mammary gland health in Holstein cows. Eight Holstein lactating cows were employed in a 2×2 factorial experiment and in an incomplete replicated latin square design. Treatment diets ...  Read More

The Effect of Alfalfa Hay Particle Size and Soy Hull on Physically Effective Fiber Content in Diet, Chewing Activity and Milk Production in Holstein Dairy Cows

Mahdi Behgar; Reza Valizadeh; Mohammad Mirzaei; Abbbas Ali Naserian

Volume 41, Issue 4 , March 2011, , Pages 331-342

Abstract
  This study was conducted to evaluate the effects of alfalfa hay (AH) particle size and soybean hull (SH) on physical effective fibre (peNDF), particle size distribution in diets, chewing activity as well as milk composition and production in early lactating dairy cows. Eight lactating Holstein cows averaging ...  Read More

Effect of Dietary Cation-Anion Difference on Acid- Base Balance, Calcium Homeostasis and Performance of Holstein Dairy Cows

Ali Razeghi; Hasan AliArabi; Seyed Mohamad Mahdi Tabatabaei; Ali Asghar Saki; Pouya Zamani

Volume 41, Issue 2 , September 2010

Abstract
  This study was conducted on 24 Holstein cows in close-up period, in a split-plot in time design, with a 2×2 factoriel arrangement and in a completely randomized framework to evaluate the effect of pre and postpartum dietary cation-anion differences (DCAD) on homeostasis of calcium, acid-base balance ...  Read More