Volume 53 (2022)
Volume 52 (2021)
Volume 51 (2020)
Volume 50 (2019)
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)
Research Paper
Searching causal structure among calving traits in first-parity Holstein cattles of Iran

Morteza Sattaei Mokhtari; Mohammad Moradi Shahrebabak; Ardeshir Nejati Javaremi; Guilherme J. M. Rosa

Volume 49, Issue 1 , June 2018, Pages 1-9

http://dx.doi.org/10.22059/ijas.2017.226874.653505

Abstract
  In this research the causal structure among calving traits of 29950 first-parity Holstein cattles of Iran including calving difficulty (CD), birth weight of calves (BW) and gestation length (GL) was revealed applying data collected by Iranian Animal Breeding in 131 herds from 1995 to 2004 by Inductive ...  Read More

Research Paper
Individual and combined evaluation of digestibility and fermentation of halophyte plants like Atriplex leucoclada, Suaeda fruticosa and Seidlitzia rosmarinus in dromedary camels

Akbar Abarghani; Morteza Chaji; Hormoz Mansori; Morteza Mamouei; Khalil Mirzadeh; Hedayat-ollah Roshanfekr

Volume 49, Issue 1 , June 2018, Pages 11-25

http://dx.doi.org/10.22059/ijas.2018.220600.653479

Abstract
  In present experiment fermantability of three halophyte species including: Atriplex leucoclada (AL), Suaeda fruticosa (SF) and Seidlitzia rosmarinus (SR) in the form of individually or mixed as 0.0, 33.5 66.5 and 100% with each other (9 diets), were evaluated using a compelet randomized design. These ...  Read More

Research Paper
The effect of addition of different levels of permeable and non-permeable cryoprotectants on freezing capacity of stallions sperm

Farhad Vafayi; ahmad zareh; Hamid Kohram; Afshin Seifi-jamadi

Volume 49, Issue 1 , June 2018, Pages 27-32

http://dx.doi.org/10.22059/ijas.2017.214312.653465

Abstract
  The aim of this study was to evaluate the effect of addition of three different permeable (Glycerol, Dimethyl formamide and Dimethyl acetamid) and two different non-permeable cryoprotectant (Trehalose and sucrose) to the extender on freezing capacity of Turkmen stallions’ sperm. Four healthy mature ...  Read More

Research Paper
Effect of five different heat synchronization protocols on ovulatory follicle diameter, after AI progesterone concentration and conception rate in Holstein cows in heat stress condition

Essa Dirandeh

Volume 49, Issue 1 , June 2018, Pages 33-41

http://dx.doi.org/10.22059/ijas.2018.254085.653625

Abstract
  The objective of this study was to compare the effect of five estrous synchronization protocols on ovulatory follicle diameter, progesterone concentration at AI and days 5 and 12 after AI and conception rate in Holstein cows during heat stress. Holstein cows (n=250) with more than 30 kg/d milk yield ...  Read More

Research Paper
Evaluation of genes expression affecting mammary gland growth and development in cows fed fish oil

Hoda Javaheri Barfourooshi; Armin Towhidi; Hassan Sadeghipanah; Mahdi Zhandi; Saeed Zeinoaldini; Mohammad Hossein Banabazi

Volume 49, Issue 1 , June 2018, Pages 43-53

http://dx.doi.org/10.22059/ijas.2018.242585.653562

Abstract
  This study was conducted to evaluate the effects of feeding fish oil compared to palm oil on the expression of genes affecting the mammary gland growth and development in Holstein cows. Ten cows with at least one parturition were randomly assigned to fish oil (FO) or palm oil (PO) groups, from 42 days ...  Read More

Research Paper
Genetic analysis of yearling Mohair by Cytoplasmic model

Jamal Fayazi; Emran Rostami; Amir Rashidi

Volume 49, Issue 1 , June 2018, Pages 55-62

http://dx.doi.org/10.22059/ijas.2018.210726.653453

Abstract
  In this research, cytoplasmic inheritance of yearling mohair weight (YMW) in Markhoz kids were studied by using Bayesian statistical method. Using records which gathered through 1992-2011 in Markhoz goat breeding research station in Sanandaj. GLM procedure of SAS statistical software was used to verify ...  Read More

Research Paper
Efficient production and application of egg yolk antibody powder against Staphylococcus aureus

Farima Aliakbari; Amir Hossein Mahdavi; Hamidreza Rahmani

Volume 49, Issue 1 , June 2018, Pages 63-71

http://dx.doi.org/10.22059/ijas.2018.254034.653624

Abstract
  The aim of present experiment was to investigate the immunochemical characteristics as well as in vitro inhibitory effects of specific and nonspecific egg yolk antibody powder on Staphylococcus aureus growth, as one of the main pathogenic serotypes of Staphylococcus in human and animals. A total of 16 ...  Read More

Research Paper
Impact of genotype imputation and density of markers on the accuracy of genomic prediction

Nahid Parna; Ardeshir Nejati Javaremi; Mostafa Sadeghi; Rostam Abdollahi Arpanahi

Volume 49, Issue 1 , June 2018, Pages 73-81

http://dx.doi.org/10.22059/ijas.2018.227090.653506

Abstract
  Using SNP markers information and genomic evaluation approach, predicting the genetic merit of individuals without phenotypic records is now possible. However, using high-density panels for genomic evaluation of all individuals is not economically feasible. To achieve high genomic prediction accuracy ...  Read More

Research Paper
Effect of Pillaring bentonite nanostructure on performance and blood parameters of broiler chicken challenged with Aflatoxin B1

Hassan Kihani-yazdi; Seyyed Javad Hosseini-Vashan; Nazar Afzali; Mohsen Mojtahedi; Ali Allahressani

Volume 49, Issue 1 , June 2018, Pages 83-93

http://dx.doi.org/10.22059/ijas.2018.239556.653552

Abstract
  The aim of this study was to evaluate the effects of Pillaring bentonite nanostructure on growth performance, carcass components and blood parameters of broilers challenged by aflatoxin (AF). A total of 128 day-old Ross 308 broiler chicks in a completely randomized design were randomly allotted to 4 ...  Read More

Research Paper
Evaluation of production, biochemical, immunity and antioxidant parameters in Hy-Line W- 36 laying hens fed diets containing growth promoter antibiotic and feed additive mixture

Milad Manafi; Fatemeh Mohebi; Mahdi Hedayati; Mojtaba Yari

Volume 49, Issue 1 , June 2018, Pages 95-112

http://dx.doi.org/10.22059/ijas.2018.140292.653403

Abstract
  This research was conducted to evaluate the effect of some feed additives compare to Flavomycin growth promoter antibiotic. Experiment was conducted in completely randomized design manner consisting 3 treatments, 5 replicates and 20 hens per each replicate using 300 White Leghorn, Hy-Line W-36 strain. ...  Read More

Research Paper
Effects of betaine supplementation and B12 injection during the transition period on serum metabolite in dairy cows

Arash Azarfar; Farshid Fattahnia; Reza Khodaakhshi

Volume 49, Issue 1 , June 2018, Pages 113-122

http://dx.doi.org/10.22059/ijas.2018.248424.653597

Abstract
  The objective of this study was to evaluate the effects of betaine supplementation (B-SUP) and vitamin B12 injection (VI-B12) during the transition period on serum metabolites in dairy cows. Thirty-two over conditioned multiparous Holstein cows assigned into 1 of 4 diets containing: CB (VI-B12), BC (50 ...  Read More

Research Paper
Effect of high doses of α-tocopherol acetate on testicular morphology and histology parameters in broiler breeder roosters

Majid Ajafar; Mojtaba Zaghari; Mehdi Zhandi; Leila Lotfi

Volume 49, Issue 1 , June 2018, Pages 123-131

http://dx.doi.org/10.22059/ijas.2018.248235.653595

Abstract
  The aim of this study was to investigate effect of dietary supplementation by high doses of α-tocopherol acetate breeder (20 weeks of age) were used in two groups, standard (n=30; body weight= 3.109±0.169) and heavy (n=30; ±body weight= 3509±0.161) weight. Roosters were individually ...  Read More

Research Paper
Effect of fat supplementation (Ca-salts) in starter diets differed in rumen undegradable protein levels on performance, growth and blood metabolites of Holstein calves

Ahmad Ahmadiyan; Farshid Fatahnia; Golnaz Taasoli; Mohammad Akbari Graee; Mehdi Kazemi Bonchenari

Volume 49, Issue 1 , June 2018, Pages 133-143

http://dx.doi.org/10.22059/ijas.2018.252471.653617

Abstract
  The interaction of fat supplementation (0 and 30 g/kg DM) and by-pass protein level (36 and 40% of dietary CP) was investigated on performance, skeletal measurements and blood metabolites of calf. Forty calves (aging 39 d) were used in a factorial design with four treatments. Experimental diets consisted ...  Read More

Research Paper
Impact of genotype imputation and different genomic architectures on the performance of random forest and threshold Bayes A methods for genomic prediction

Yousef Naderi

Volume 49, Issue 1 , June 2018, Pages 145-157

http://dx.doi.org/10.22059/ijas.2018.253649.653623

Abstract
  Genomic selection using imputed genotypes can have an important role in increasing economic efficiency andthe genetic improvement of the threshold traits. The objective of this study was to: investigate the accuracy of imputation and to evaluate its effect on area under receiver operating characteristic ...  Read More

Research Paper
Effect of substituting alfalfa hay with beet pulp, treated and untreated wheat straw on performance of high-producing dairy cows

Mohammad Mehdi Hajmahmoodi; Ebrahim Ghasemi; Mohammad Khorvash

Volume 49, Issue 1 , June 2018, Pages 159-170

http://dx.doi.org/10.22059/ijas.2018.244268.653573

Abstract
  In this study, the effectsof partial substitution of alfalfa hay (AH) with high fiber by-products (wheat straw: WS, beet pulp: BP) were evaluated on performance of high producing dairy cows. Eight high yielding cows (54±2.5 kg milk production) were used in a 4 × 4 Latin square design and ...  Read More