Search results: 306 results (approx.)

1. Comparison of different statistical methods in genomic selection based on selection effectiveness criteria.

This study aimed to compare different methods of genomic evaluation using the criteria of correlation (ρ), regression (β), mean square error (MSE), and selection effectiveness (SE). For this purpose, nine different scenarios were designed based on different levels of heritability (0.1, 0.3, and...

Author(s) : Tamaddoni-Arani, M.; Razmkabir, M.; Abdollahi-Arpanahi, R.; Rashidi, A.; Moradi, Z.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.3 pp.fa1-fa19, en20 ref.40

2. Estimation of inbreeding effects and its impact on some production and reproduction traits in West Azerbaijan native fowls.

The present study aimed to estimate the inbreeding coefficient and its impact on the economically important traits in West Azerbaijan native fowls. In this research, 61563 records collected from 1994 to 2018 (21 generations) from the breeding station of West Azerbaijan native fowls was used. The...

Author(s) : Ghorbani, Sh.; Zakizadeh, S.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.3 pp.fa21-fa31, en32 ref.30

3. Effect of aerobic exposure to forage before ensiling on the chemical composition, aerobic stability, and microbial population of corn silage before and after silage opening.

This study aimed to determine how delayed silo sealing at filling affects the chemical composition, fungal population, and dry matter recovery of maize silage. Whole crop maize silage was harvested and then ensiled using laboratory silos (n= 4) as (1) Control, ensiled immediately, (2) 24 hours...

Author(s) : Toosi, R.; Bayatkouhsar, J.; Vatandoost, M.; Ghanbari, F.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.3 pp.fa89-fa98, en99 ref.40

4. Accuracy of genomic evaluation considering the interaction effect between estimation method of marker effects, population structure, and genetic architecture of the trait.

This study aimed to investigate the interaction effects between marker effect estimation methods, population structure, and genetic architecture of the trait on the accuracy of genomic evaluations. A reference population with two different effective population sizes (100 and 500) was simulated...

Author(s) : Atefi, A.; Shadparvar, A. A.; Hossein-Zadeh, N. G.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.2 pp.fa1-en10 ref.21

5. Heterogeneity in the effect of partial inbreeding of founder animals on birth weight and weaning weight of Baluchi lambs.

Uneven distribution of recessive alleles among founder animals genomes leads to the heterogeneity of inbreeding depression among their descendants. In this study, pedigree information, birth weight, and weaning weight records of 4032 Baluchi sheep collected between 1989 to 2017 at the Baluchi sheep ...

Author(s) : Badereh, S.; Sheikhlou, M. R.; Karimi, A.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.2 pp.fa11-en23 ref.23

6. Introducing superior silkworm hybrids for different geographical regions of Guilan province.

Considering the importance of studying the performance of commercial silkworm hybrids at the level of silkworm rearing units in different rural areas, in the spring of 2019, the 14 hatched silkworm egg boxes per hybrids (12 imported and two Iranian boxes) were delivered to skilled sericulturists in ...

Author(s) : Khordadi, M. R.; Moghaddam, S. H. H.; Sabouri, A.; Mahfoozi, K.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.2 pp.fa25-en38 ref.6

7. Influence of Electron beam and low-pressure steam on the improvement of the nutritional value of date kernel powder for ruminants.

The present experiment was conducted to investigate the effect of the electron beam (beam) and low-pressure steam (steam) treatments on the nutritional value of date kernel powder for ruminants. At first, date kernel powders were irradiated with the beam at doses of 0, 25, 50, 75, 100, and 125 KGy. ...

Author(s) : Chaji, M.; Khenifer, H.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.2 pp.fa51-en62 ref.25

8. Effect of different levels of yeast in comparison with monensin on the ruminal fermentation parameters and protein degradability in high concentrate diets.

This study aimed to investigate the effect of different levels of yeast and monensin in high concentrate diets on the ruminal fermentation parameters by in vitro gas production method and protein degradability by in situ nylon bag technique. Experimental treatments included control diet (75%...

Author(s) : Taghizadeh, M.; Elahi, M. Y.; Mirzaei, H. R.; Salem, A. Z. M.; Azarfar, A.; Azizi, A.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.2 pp.fa73-en85 ref.41

9. Effect of intramammary lipopolysaccharide challenge on mRNA abundance of antioxidant genes associated with nuclear erythroid 2-related factor 2 in mammary tissue of dairy cows during change of metabolites and hormones.

To study the reaction of udder mRNA abundance of genes related to nuclear erythroid 2-related factor 2 (Nrf2) to an intramammary lipopolysaccharide (LPS) challenge with changes in blood insulin and metabolites levels, 24 dairy cows were used. Treatments included insulin infusion (HypoG, n=5),...

Author(s) : Zarrin, M.; Ahmadpour, A.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.2 pp.fa87-en98 ref.38

10. Study of multiple-trait selection in new Iranian silkworm genotypes- Chinese-shape parents.

Introducing new lines to produce high-quality silkworm hybrids is one of the ongoing tasks of the silkworm breeding centers. Five lines of Y, 124, 154, 104, and 32 with Chinese-shaped cocoons were selected from the gene bank. Based on the diallel cross, 20 genetic compounds were reared massively...

Author(s) : Mirhoseini, S. Z.; Mavvajpoor, M.; Nematollahian, S.; Moghaddam, S. H. H.; Rafeie, F.; Hossein-Zadeh, N. G.; Kheirkhah, Y.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.1 pp.fa1-fa11 ref.17

11. Effect of particle size and inoculation of homofermentative and heterofermentative bacteria in high moisture corn forage on the silage quality.

This experiment was conducted to determine the effect of corn silage particle size, homofermentative and heterofermentative fermenting bacteria inoculation on chemical compounds, sensory evaluation, aerobic stability, and gas production on days 30, 45, 60, and 90 after silage preparation. The corn...

Author(s) : Dehghani, M.; Hosseini, M. M. S.; Dayani, O.; Maddahian, A.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.1 pp.fa37-fa49 ref.30

12. Transcriptome profile of endometrium for growth and elongation of dairy cattle embryo.

In this study, transcriptome data were used to identify the genes involved in embryo elongation of dairy cattle and the inter-gene interactions to evaluate the important functional modules during this process. The growth, successful development, and survival of the embryo are the most important...

Author(s) : Zonuzagh, J. J.; Shahrbabak, M. M.; Nejati-Javaremi, A.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2020 Vol.9 No.2 pp.fa1-fa13 ref.many

13. Impact of marker density and reference population size on accuracy of imputation in simulated data.

In this study, effect of the reference population size and the number of missing single nucleotide polymorphisms (SNPs) on imputation accuracy was assessed. The QMSim software was used to create a reference database of 1000 simulated animals. Two datasets were created from the database reference:...

Author(s) : Mohammadi, Y.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2020 Vol.9 No.2 pp.fa15-fa22 ref.23

14. Estimation of genetic parameters and genetic trend of litter size in under selection flock of Afshari sheep.

In this study, data from 1882 ewes, including 3351 lambs born, was used as litter size trait in Afshari sheep breed. The data were collected from 2000 to 2016 by the research station at Zanjan University. The data were analyzed by ASReml software via threshold model in six different models. Fixed...

Author(s) : Ahrabi, M. P.; Eskandarinasab, M. P.; Maryam, M. B. Z. B.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2020 Vol.9 No.2 pp.fa23-fa35 ref.27

15. Effect of excluding age at sexual maturity from breeding goal and ratio of selected roosters on selection response of traits in native fowls.

The aim of the current study was to investigate the effect of removing age at sexual maturity in native fowl breeding goal. Therefore, a deterministic simulation for single stage selection with discrete generations was used to estimate genetic and economical responses as well as inbreeding rate....

Author(s) : Ahmadpanah, J.; Rabani, M. S.; Khamisabadi, H.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2020 Vol.9 No.2 pp.fa37-fa44 ref.11

16. Effect of eucalyptus leaf extract, Virginia, barley and basma tobacco smoke on Varroa mite of honey bee.

The present study was performed to investigate the effect of eucalyptus leaf extract and tobacco smoke on Varroa mite using 36 hives over a period of 34 days. In one experimental group, no action was taken to control Varroa mite (control) and other one (positive control) Apistan Strip were placed...

Author(s) : Kamiab, M.; Mehr, M. R. A.; Moghadam, S. H. H.; Sahragard, A.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2020 Vol.9 No.4 pp.fa1-fa10 ref.30

17. Effect of dietary inclusion of Ca-salts of palm oil and fish oil on performance, carcass traits and meat quality of Moghani male lambs.

The present study aimed to characterize the effect of dietary Ca-salts of palm oil (PO) and fish oil (FO) on performance, carcass characteristics, and meat quality of growing lambs. The lambs (n=20; IBW=32.7±2.8 kg, 4-5 month-old) were randomly assigned to one of two treatments (10 lambs/treatment) ...

Author(s) : Vahedi, V.; Hedayat-Evrigh, N.; Behruzyar, H. K.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2020 Vol.9 No.4 pp.fa71-fa80 ref.26

18. Investigation of copy number variation in Baluchi sheep genome using comparative analysis of PennCNV and QuantiSNP algorithms.

Copy number variation (CNV), one of the most important structural changes in the genome, has been known as an important source of genetic and phenotypic variations. The purpose of this study was to compare the two different algorithms in CNV detection consisting PennCNV and QuantiSNP in Baluchi...

Author(s) : Taghizadeh, K.; Gholizadeh, M.; Moradi, M. H.; Mianji, GH. GH. R.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2020 Vol.9 No.1 pp.fa29-fa44 ref.64

19. Comparison of reproductive performance of Chukar partridges (Alectoris chukar) following natural mating and artificial insemination.

This experiment was conducted to compare the effect of natural mating (NM) and artificial insemination (AI) on reproductive performance in Chukar partridges. A total number of 96 female partridges were randomly assigned to two equal groups (four replicates of 12 birds each) to produce hatching eggs ...

Author(s) : Daryabari, H.; Akhlaghi, A.; Zamiri, M. J.; Ansari Pirsaraei, Z.; Fozooni, R.; Taghipoor, M.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2020 Vol.9 No.1 pp.fa101-fa108 ref.23

20. Investigation of gender differences in the incidence of ascites and profile of gene expression in kidney tissue of broiler chickens.

Ascites syndrome is one of the most important causes of death in the poultry industry, in which various tissues of the body, including the kidneys, are involved. This syndrome occurs with different frequencies in males and females, and different mechanisms of ascites in the two sexes have not been...

Author(s) : Malekshahdehi, S.; Hafezian, S. H.; Rahimi-Mianji, G.; Hasanpur, K.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.3 pp.fa33-fa43, en44 ref.many

21. Investigation of the relationship between exon 2 of MHC-DMB2 polymorphism and humoral immune response in Japanese quail.

The DMB2 gene is one of the MHC cluster genes that plays a role in the humoral immune response. This study was performed to identify the polymorphism of exon 2 of the MHC-DMB2 gene and its association with the humoral immune response in Japanese quail. For this purpose, on day 28, 0.2 mL of 5%...

Author(s) : Chenani, H.; Nazari, M.; Nassiri, M. T. B.; Roshanfekr, H.; Aghaei, A.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.3 pp.fa45-fa54, en55 ref.22

22. Influence of seven days old weight of Manchuria strain quail on IGF-I gene expression, live weight at the age of 35 days old, and carcass weight.

In this study, the relationship between the seven days old weight and the IGF-I gene expression in the breast and thigh muscles of 300 Manchuria quail was studied in a completely randomized design at 35 days of age. On the seventh day, quails were divided into three groups of light, medium, and...

Author(s) : Bahrampour, V.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.3 pp.fa57-fa65, en66 ref.many

23. Effects of aromatase inhibitors on performance and some reproductive parameters in male quails.

The biological effects of aromatase inhibitors in humans and some animals have been studied in several types of research. This study was performed to investigate the effects of two aromatase inhibitors: Letrozole, a synthetic aromatase inhibitor, and Aphrodite, a blend of the medicinal plant...

Author(s) : Shafiee, E.; Vaziry, A.; Farzinpour, A.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.3 pp.fa67-fa76, en77 ref.many

24. Effect of adding garlic and tomato pomace powder to diet on the body weight, productive performance, and egg quality traits in broiler breeders.

To investigate the effect of adding garlic and tomato pomace powder to the diet of Ross 308 broiler breeders on production performance, body weight, egg quality traits, and hatchability characteristics, a total of 375 chickens were randomly assigned to five iso-caloric and iso-nitrogenous diets,...

Author(s) : Mohammadi, A. L.; Torki, M.; Mottaghitalab, M.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.3 pp.fa79-fa86, en87 ref.many

25. Effect of different dietary methionine levels during grower period of Japanese quails on performance, carcass characteristics, energy and protein efficiencies, breast muscle composition, and some blood parameters.

This research aimed to investigate the effect of different dietary methionine levels on performance, carcass characteristics, energy and protein efficiencies, breast muscle nutrients, and some blood indices in Japanese quails during 11-24 days of age. This experiment was conducted in a completely...

Author(s) : Sayahi, R.; Daneshyar, M.; Farhoomand, P.

Publisher : University of Guilan, Rasht, Iran

Journal article : Animal Production Research 2021 Vol.10 No.2 pp.fa39-en50 ref.26