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

https://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

Effect of high dietary zinc, copper and manganese concentration and source on ‎plasma progesterone and reproductive performance in repeat breeder cows

Vahid Gholami; Hamid Amanlou; Davood Zahmatkesh; Nima Sadeghi

Volume 51, Issue 4 , March 2021, , Pages 263-273

https://doi.org/10.22059/ijas.2020.305609.653786

Abstract
  We used 263 Holstein repeat breeder dairy cows (193±58 DIM) based on randomized complete design. Animals in control group (no supplementation), groups 2 and 3 supplemented with 2,244 mg of zinc, 295.5 mg copper and 480 mg manganese either inorganic trace minerals (ITM) and chelated (glycinates) ...  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