Abstract
To evaluate the effect of vitamin E and organic selenium by intra eggs injection method on performance, livability and meat quality of broilers, two tests Were conducted. in the first experiment using 800 Fertilized eggs in a completely randomized design with 5 treatments (treatment1: control, treatment2: ...
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To evaluate the effect of vitamin E and organic selenium by intra eggs injection method on performance, livability and meat quality of broilers, two tests Were conducted. in the first experiment using 800 Fertilized eggs in a completely randomized design with 5 treatments (treatment1: control, treatment2: In-ovo injection of saline, treatment 3,4 and 5 In-ovo injection of selenium, vitamin E and selenium + vitamin E respectively) and 4 replicates and 40 eggs and in the second experiment, a completely randomized design, with 10 treatments (chicken of the first trial with two diet of recommended levels of selenium and vitamin E and more than the recommended levels) and 3 replicates per treatment and 15 one-day-old broiler chicks of the first experiment were allocated. In the first experiment results showed that intra egg injection of vitamin E and selenium had no significant effects on hatching eggs. In the second test results showed that weight gain, feed intake and feed conversion ratio of chickens were not affected using different levels of selenium and vitamin E. The results showed that the levels of malon di-aldehyde (index TBARS) and storage time in the freezer showed statistically significant difference between the different treatments (P<0/05). In which by increasing the storage time, the water holding capacity and the TBARS increased (P<0/05).
A.R. Shahdadi; Mohammad Mahdi Shariati; M.R. Nasiri; S. Zerehdararan; D. A. Saghi
Abstract
The present research was performed to study the genetic analysis of length of productive life and production traits (milk yield, fat yield and protein yield) Iranian Holstein cows. Thus, the records of 90112 first lactation dairy cows were used. Data were collected from 759 herds during 1996 to 2013 ...
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The present research was performed to study the genetic analysis of length of productive life and production traits (milk yield, fat yield and protein yield) Iranian Holstein cows. Thus, the records of 90112 first lactation dairy cows were used. Data were collected from 759 herds during 1996 to 2013 by the Animal Breeding Center of Iran. Estimation of variance components was performed by restricted maximum likelihood method using DMU package. Genetic and phonotypic trends were computed as a linear regression of yearly means on calving year. The estimated heritabilities of length of productive life, functional productive life, milk yield, fat yield and protein yield were 0.04, 0.03, 0.23, 0.17 and 0.20, respectively. Genetic correlation of length of productive life, functional productive life with production traits ranged from 0.02-0.11. Estimated genetic correlation of milk yield with fat yield and protein yield was 0.88 and 0.94, respectively. Genetic trends for lifetime traits (productive and functional) were -0.02 and 0.002 d, respectively (P>0.05) and for milk yield, fat yield and protein yield were 5.46, 0.08 and 0.09 kg, respectively (P<0.01). Considering positive genetic correlation between milk yield and length of productive life, it seems that selection based on milk yield can led to increase in lifetime. Thus, planning of selection programs in Iranian Holstein dairy cows based on length of productive life is recommendable.
hamid reza naijian; H. Sadeghi Panah; R. Masoudi
Abstract
This study was designed to investigate the effects of various concentrations of egg yolk (5, 10, 15 and 20%) and Lecithin (1, 1.5 and 2%) in the extenders based on tris (with 5% glycerol) on the Marghoz goat spermatozoa after freezing-thawing. Semen samples were collected by an artificial vagina, twice ...
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This study was designed to investigate the effects of various concentrations of egg yolk (5, 10, 15 and 20%) and Lecithin (1, 1.5 and 2%) in the extenders based on tris (with 5% glycerol) on the Marghoz goat spermatozoa after freezing-thawing. Semen samples were collected by an artificial vagina, twice a week from four matured goat.The extender containing semen was frozen in liquid nitrogen and then was stored until using for assessment. Semen was thawed at 37◦C and then motility and progressive motility were assessed by CASA. Membrane integrity and viability,morphology were assessed as well and Malondialdehiyde (MDA) were were assessed as well. The results of this experiment showed that extender containing 15% egg yolk and 1.5% Lecithin significantly improved motility, progressivemotility and viability compare to other levels (P<0.05). Membrane integrity, morphology, malondialdehiyde and acrosome status were not affected significantly by the different level of egg yolk and Lecithin (P > 0.05). It can be concluded that use of 15% egg yolk in animal extender and 1.5% Lecithin in vegetable extender is suitable for cryopreservation of Marghoz goat semen.
Heydar Zarghi; Sonia Zakizadeh; Ali Dehghan; Ali Zanganeh
Abstract
The current study was conducted to evaluate the effect of feed supplementation with Thyme-dried leaves (TDL) on growth performance, serum parameters, humoral immunity, and gastrointestinal tract (GIT) relative weight of broiler chickens fed on wheat-based diets with low nutrients density. One hundred ...
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The current study was conducted to evaluate the effect of feed supplementation with Thyme-dried leaves (TDL) on growth performance, serum parameters, humoral immunity, and gastrointestinal tract (GIT) relative weight of broiler chickens fed on wheat-based diets with low nutrients density. One hundred and sixty day old meal “Ross 308” broiler chicks were arranged in a random completely design (CRD) with 4 treatments (zero, 0.4, 0.8 and 1.2% dietary supplemented with TDL), 4 replicates/treatment and 10 chicks per replicate. Compared with the control group, birds fed diets containing 0.4% TDL had a higher (P<0.05) final body weight, average daily gain and lower (P<0.05) feed conversion ratio at 1-18d but at other rearing period 19-30, 31-49 and 1-49d of ages had not significant difference. Dietary supplementation with TDL in the 0.8 and 1.2% levels decreased (P<0.05) small intestine relative weight (P<0.05) and in the 0.8% level increased (P<0.05) serum triglyceride and total cholesterol concentrations at 49d of age. Dietary supplementation with TDL didn’t show significant immune response to the SRBC injection on 18 and 25d of ages. It was concluded from the current experiment that Thyme-dried leaves can be used as a grow promoter in the wheat-based diet only in the starter period (1-18d of ages) of broiler chickens.
mohsen kazemi; Abdoul Mansour Tahmasbi; Reza Valizadeh; Abbas Ali Naserian; Ameneh Eskandary Torbaghan; Younes Esmaeil Jami
Abstract
An experiment was conducted to evaluate the impact of sodium bentonite (SB) on milk yield, digestibility and feed intake of Holstein dairy cows fed phosalone pesticide-contaminated alfalfa silage. Twenty Holstein dairy cows (average weight 577±37 kg) were used as a completely randomized design ...
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An experiment was conducted to evaluate the impact of sodium bentonite (SB) on milk yield, digestibility and feed intake of Holstein dairy cows fed phosalone pesticide-contaminated alfalfa silage. Twenty Holstein dairy cows (average weight 577±37 kg) were used as a completely randomized design with repeated measurements. Experimental treatments were 1) control: containing alfalfa silage without pesticide phosalone and SB, 2) control + SB alone (330g SB/head/day), 3) control + contaminated alfalfa with phosalone, and 4) control + SB (330g/day) + contaminated alfalfa with phosalone. Dry matter intake (DMI) and milk efficiency were not affected by the treatments, but the milk production, digestibility of DM and organic matter were higher in treatments containing SB compared to control (P<0.05). Fecal contents were significantly (P<0.05) lower in the treatment containing SB (especially treatment 4). The phosalone transfer from contaminated feed to milk was evident, as its transfer coefficient for treatments of 3 and 4 were 1.35 and 0.79% respectively. The transferring of phosalone to milk decreased significantly by the SB application (p<0.05). Also excreted phosalone via urine and fecal increased significantly in treatments with SB (p<0.05). Results indicated that phosalone is transferred to the milk via the contaminated feed, and SB as well as improvement of animal performance can be prevented from entering phosalone to the milk.
M. Salehi; A. Mohit; Hoda Javaheri Barfourooshi
Abstract
Twenty-four Raeini cashmere goat females (2 and 3 years of age and 35.0±1.4 kg BW) were used to determine effects of melatonin implants and bromocryptine on fiber growth rate (length), cashmere and hair diameter and fleece production. A completely random design was carried out. Four groups were ...
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Twenty-four Raeini cashmere goat females (2 and 3 years of age and 35.0±1.4 kg BW) were used to determine effects of melatonin implants and bromocryptine on fiber growth rate (length), cashmere and hair diameter and fleece production. A completely random design was carried out. Four groups were formed: 1) control, 2) melatonin implant, 3) bromocryptine injection and 4) melatonin implant + bromocryptine injection. The experimental goats received melatonin implants subcutaneously 18 mg/kg BW at first and repeated after 40 days, group 2), bromocryptine ( 0.5 mg/kg BW per 3 days; group 3) and melatonin implant and with bromocryptine; group 4 ). All goats were fed a balanced diet under the same environmental and natural photoperiodic conditions in a 60-day, from February to March. Overall mean fleece weight were 607.4, 600.3, 523.3 and 471.3g, for bromocryptine, melatonin+bromocryptine, melatonin and control groups, respectively, being greater for bromocryptine and melatonin+bromocryptine than for the other groups (P<0.05). The cashmere fibre length of the treatment groups (1.2 cm) were significantly greater (P<0.01) than that of the control group (0.9 cm). There was a significant difference in cashmere fiber diameter for control group (21.7 micron) compared with treatment groups for melatonin, bromocryptine and melatonin+bromocryptine (18.4, 18.4 and 19.2 ± 0.9 micron, respectively). The results indicated that melatonin implantation and bromocryptine could increase fiber length and promote cashmere production continuously.
A. Karami; nemat Ziaei; O.A. Esmaeili pour
Abstract
The present study conducted to investigate the comparative effects of different levels of Ferula Assafoetida gum (FAG) and antibiotic on the growth performance, immune response, and blood parameters of broiler chickens. In this respect, in a completely randomized design, a total of 200 1-day-old male ...
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The present study conducted to investigate the comparative effects of different levels of Ferula Assafoetida gum (FAG) and antibiotic on the growth performance, immune response, and blood parameters of broiler chickens. In this respect, in a completely randomized design, a total of 200 1-day-old male broiler chickens (Ross 308) were exposed to 5 treatments with 4 replicates, 10 chicks each. The dietary treatments consisted of: basal diet (BD) with no additives, BD+0.02% Flavophospholipol, BD + 0.05% FAG, BD + 0.1% FAG and BD + 0.25% FAG. The percentage of Flavophospholipol antibiotic was periodically measured. At the end of experiment, from each replication, two birds were exsanguinated from the wing vein to measure the blood parameters. The results indicated that during the growth period and overall the experiment, the effect of FAG and antibiotic on the daily weight gain was significant (P<0.5).Inclusion of diet with FAG resulted in a significant (P<0.05) decrease in glucose and triglyceride concentration and a numerically decrease in LDL-cholesterol and total cholesterol content. The findings of this study showed that an addition of FAG at a rate of 0.1% in the diet could decrease glucose and tri glyceride content in blood of broiler chickens.
reza parvar; taghi ghoorchi; M. Shams Shargh
Abstract
This study was carried out to investigate the effects of different of oil sources on economic performance in fattening lambs. Thirty-five male lambs were used in a completely randomized design. Evaluation of economic performance of fattening lambs is done by 8 indices included Initial weight, final weight, ...
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This study was carried out to investigate the effects of different of oil sources on economic performance in fattening lambs. Thirty-five male lambs were used in a completely randomized design. Evaluation of economic performance of fattening lambs is done by 8 indices included Initial weight, final weight, dry matter intake, daily weight gain, feed conversation ratio, price of of feed intake and the cost of one kg live weight gain and 7 treatments included: 1- control diet based (without oil), 2- diet with 3 % fish oil, 3- diet with 3 % canola oil, 4- diet with 3 % soybean oil 5- diet with 1.5 % fish oil + 1.5 % canola oil, 6- diet with 1.5 % fish oil + 1.5 % soybean oil, 7- diet with 1.5 % canola oil + 1.5 % fish oil. The results showed that the treatment contain canola oil had the highest rank. Diets containing fish oil, blend of fish oil plus soybean oil and blend of canola oil plus soybean oil had the lowest rank among treatments. The indices of initial body weight, dry matter intake and carcass weight had the highest influences on economic performance respectively. The results showed that adding of canola oil at 3% in diet had the highest economic performance, while blend of fish oil plus soybean oil and blend of canola oil plus soybean oil had the lowest economic performance and incorporation binary-blend of these oils in equal proportion is not recommended in diets of fattening lambs.
MOHSEN BAGHERI; morteza karami
Abstract
The present study was conducted to evaluate the efficacy of using vitamin E in the flushing diet on reproductive performance of Lori-Bakhtiari ewes. Two hundred healthy and non-lactating Lori-Bakhtiari ewes with an average live body weight 57.5±6.7 kg and 2-7 years of age, reared in the rural ...
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The present study was conducted to evaluate the efficacy of using vitamin E in the flushing diet on reproductive performance of Lori-Bakhtiari ewes. Two hundred healthy and non-lactating Lori-Bakhtiari ewes with an average live body weight 57.5±6.7 kg and 2-7 years of age, reared in the rural (n=100) and the nomadic (n=100) system, were studied. Ewes in each flock were randomly assigned to two diets. Diets contained basal diet plus 250 g/ewe barley grains (control) or basal diet plus 250 g/ewe barley grains plus 500 IU vitamin E. The feeding regimens started from 2 weeks before lasted to 3 weeks after ram introduction. Data for weight and body condition score of ewes at mating; conception rate, lambing and prolificacy were collected and analyzed by GLM procedure of SAS. Treatments did not affect the overall conception, lambing and prolificacy rates (P>0.05); however, these traits for the vitamin E group were numerically higher than the control group. Conception rate during first 21 days after ram introduction, and the majority of the ewes which had lambed during the first 21 days, were significantly higher (P<0.01) for the vitamin E group than the control group. Prolificacy rate during the first 21 days of lambing season, was not affected by treatments (P>0.05). Overall conception rate was lower for ewes with 2.5 body condition score (P<0.05). The results showed that, using vitamin E in flushing diet, did not improve reproductive performance of Lori-Bakhtiari ewes.
cyrus ferasati; M. M. Moeini; F. Hozhabri; H. Fazaeli
Abstract
An experiment was conducted to determine the effects of two pressure levels in the hydraulic press (200 and 220 bar) of complete feed blocks (CFBs) manufacturing machine, three levels of the pressure dwell time (5, 17 and 30 seconds) and two levels of forage particle size (10 and 30mm) on compressibility ...
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An experiment was conducted to determine the effects of two pressure levels in the hydraulic press (200 and 220 bar) of complete feed blocks (CFBs) manufacturing machine, three levels of the pressure dwell time (5, 17 and 30 seconds) and two levels of forage particle size (10 and 30mm) on compressibility characteristics of CFBs in a completely randomized design with 12 treatments and 10 replications. In each CFB, forage, concentrate and molasses ratio was 45: 45: 10 and forage portion of the diet contains 29 percent of alfalfa hay and 16 percent of wheat straw, based on dry matter. By increasingin the hydraulic press pressure and the pressure dwell time, the density of CFBs were increased. The average of density (Kg/m3) in CFBs containing large forage particles (457.03 ± 4.36)were lower than CFBs containing small forage particles (478.28 ± 4.50, p<0.05). Post compression expansion (PCE) means in CFBs containing large forage particles (2.50 ± 0.22) were higher than in CFBs containing small forage particles (1.56 ± 0.20, p<0.01) in the first 24 hours post production. The most of the PCE and the density reduction of CFBs occurred in the first 24 hours post production (p<0.01). There was a linear relationship between the density (Kg/m3) of CFBs in the time of production and PCEpercent after 24 hours or 100 days of storage (pmm forageparticle size, hydraulic press pressure of 220 bar and pressure dwell time for 5 seconds are the best conditions for the production of alfalfa and wheat straw-based CFBs.
M. Vatan Khah; M. Kikha Saber; M. A. Abbasi; H. Baneh; S. Esmaeil Khanian
Abstract
In this study 429 smallholder dairy farms in 44 villages of the Zabol county included 1728 lactating cows and 3759 head of total herd during February 2015 to March 2016 were recorded to assess the estimate economic opportunities per cow. A questionnaire survey was used to collect data from last year ...
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In this study 429 smallholder dairy farms in 44 villages of the Zabol county included 1728 lactating cows and 3759 head of total herd during February 2015 to March 2016 were recorded to assess the estimate economic opportunities per cow. A questionnaire survey was used to collect data from last year information, direct recording during visit the farm and interview with the smallholder farmer. The number of 5 economic indices calculated using revenue and expense for each farm. The economic opportunity is the amount of additional revenue that could be obtained if farmers could improve various productivity indexes to meet reasonable targets. The economic opportunity estimated as the amount of difference between average herd and reasonable target multiplied by the value of one unit change in the variable in Rials. The sum of economic opportunities per cow per year estimated as 19.68 million Rails included 8.13 million Rails (37.73%) for average daily milk production per cow, 6.47 million Rails (32.51%) for average age at first calving, 3.58 million Rails (20.58%) for average lactation length, 0.82 million Rails (5.33%) for average calf production interval and 0.67 million Rails (3.85%) for average calf mortality, respectively. There was significant variation between different levels of season, breed, rearing system and herd size for the performance of economic opportunities indices. The results obtained in this study can be used in planning to improve the performance economic indices to improve productivity and economic efficiency in smallholder cattle farms.
M. A. Abbasi
Abstract
In order to evaluate the impact of the prediction Incomplete pedigree breeding value and genetic trends of Karakul sheep pelt, from real data collected at the Sarakhs of karakul sheep breeding station during the years 1995 to 2015 were used. Studied trait was: degree of Pelt that birth weight as auxiliary ...
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In order to evaluate the impact of the prediction Incomplete pedigree breeding value and genetic trends of Karakul sheep pelt, from real data collected at the Sarakhs of karakul sheep breeding station during the years 1995 to 2015 were used. Studied trait was: degree of Pelt that birth weight as auxiliary variables in the statistical model was used. For every trait, data from 21 years of selection and mating was saved in separate files. And the file of pedigree, sire’s number by 25% (from zero to one hundred percent) was removed randomly and data files for each trait in a state of complete and incomplete pedigree (removed 25, 50, 75 and 100% Number of Sires) under the animal model was used. Genetic trends of the pelt through regression of average breeding value on Birth year estimate that has to remove different percentages Numbers sire (0, 25, 50, 75 and 100 percent) from pedigree to were as follows: 0.0420 ± 0.0061, 0.0161 ± 0.0056, -0.0472 ± 0.031, 0.0161± 0.0056 and 0.0161 ± 0.0056. And heritability were, respectively: 0.74 ± 1.76, 0.72 ± 1.65, 0.71 ± 1.49, 0.73 ± 1.38 and 0.76 ± 1.25. The overall defect in pedigree by increasing percentage of elimination the number of sire, direct heritability reduced to 75% removal sire's number, then place the increase of heritability was the pelt as well as genetic trend by increasing the removal rate Sire Number fell.
R. Feyzi; E. Abdi Ghezeljeh; M. Basafa; Gh. R. Nabavi
Abstract
This experiment was carried out to study the forage yield, nutritional value and fermentation process of corn and sorghum silages. Agronomic and qualitative traits for corn and sorghum forages were evaluated in five row intercropping ratio, which were 100% corn, 75:25, 50:50, 25:75 and 100% sorghum. ...
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This experiment was carried out to study the forage yield, nutritional value and fermentation process of corn and sorghum silages. Agronomic and qualitative traits for corn and sorghum forages were evaluated in five row intercropping ratio, which were 100% corn, 75:25, 50:50, 25:75 and 100% sorghum. The experiment was done in a completely randomized design with five treatments and four replications. Approximately, 200 mg of each sample was weighed into a 120-ml serum vial and were incubated. There was significant differences (P<0.05) between treatment in wet and dry forage yield, while treatments contained sorghum were higher than corn (P<0.05). There were significant differences among treatments in silage quality; corn and sorghum silage alone have the highest and lowest respectively. The amount of pH and lactic acid decreased and increased respectively with increasing sorghum ratio in the silage. There was significant difference between dry matter (DM), organic matter, neutral detergent fiber (NDF), acid detergent fiber (ADF) and non fiber carbohydrate (NFC) of different treatments, with increasing of sorghum ratio from zero to 100%, the amount of DM and NFC decreased and amount of NDF and ADF increased. The results of gas production showed differences between treatments in asymptotic gas volume, OMD and ME were significant (P<0.05). With increasing sorghum ratio in silages, the amount of asymptotic gas volume, gas production constant rate, OMD and ME decreased. The results of this experiment showed that maize intercropping with sorghum increased forage production per hectare without any negative effect on silage quality parameters.
E. Behdani; H. Roshanfekr; M. Ghaderi; J. Feyzi; M. R. Bakhtiyarizadeh
Abstract
It is not easy to apply gene pathway in different traits in animal breeding, But identifying of gene pathways which obtain from transcriptomics data and influence a biological process could be an important step to better understanding the regulatory mechanisms of this process. In this study, leukocyte ...
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It is not easy to apply gene pathway in different traits in animal breeding, But identifying of gene pathways which obtain from transcriptomics data and influence a biological process could be an important step to better understanding the regulatory mechanisms of this process. In this study, leukocyte transcriptomics data was applied to evaluation of molecular mechanism related to improving the immune response by analysis of gene pathways. To achieve this, RNA-Seq data with accession number GSE37447 was downloaded from NCBI data bank and data quality control was done by FastQC software. Detection of genes and isoforms was performed by TopHat2 software and then level of genes’ and isoforms’ gene expression was conducted by HT-Seq. differentially gene expression was analyzed by edgeR. Analysis of gene pathways was done by online software DAVID based on genes which had differentially gene expression. Gene pathway analysis showed spliceosome and mismatch repair pathway were activated in leukocytes. Therefore, mentioned gene pathways could explain how to strengthen of the immune response and better clarify of regulatory pathways in this biological process. It seems genes, transcription factors, microRNA and/or cofactors which involve in these gene pathways (spliceosome and mismatch repair pathway) could be helped in order to improve the immune system by inbreeding programs because these gene pathways directly influence on the immune system activation and regulation of its functions.
Bahareh Taheri Dezfuli
Abstract
The growth is defined as the change of live weight per unit of time and can be studied by monitoring its changes at different ages, using mathematical describing growth models. So, in this research to study the growth curve, weight records of 37 male and 42 female buffaloes were collected from birth ...
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The growth is defined as the change of live weight per unit of time and can be studied by monitoring its changes at different ages, using mathematical describing growth models. So, in this research to study the growth curve, weight records of 37 male and 42 female buffaloes were collected from birth to five years in one herd of Khuzestan province (totally 2694 weight records) were used. Surveyed functions were included of five Gompertz, Logistic, Brody, VanBertalanfy and Richards growth models. Regression models were perfumed, using NLIN procedure of SAS 9.1 software. To determine the best model the criteria including of adjusted coefficient of determination, Mean Squared Error, Absolute Mean Residual Deviation and second order bias correction Akaike Information Criterion were used. The results showed that the VanBertalanfy, with high adjusted determination coefficient and the lowest error criteria, was more suitable than other models. Models fitted for both male and female buffaloes had the same results and Vanbrtalanfy, Richards, Gompertz, Brody and logistics were ranked from 1 to 5 for both groups, respectively. The maturity weight and the maturation rate based on appropriate model were 631 and 857 kg, and 0.052 and 0.050 kg per month for female and male buffaloes, respectively. Correlation between the maturity weight and the maturation rate was also obtained -0.92 and -0.91 for male and female buffalo. The age of female and male buffalo in inflection point were estimated 11.62 and 12.42 months, respectively. The proposed model can be used in prediction of the growth.
S. Saberi; H. Sarir; Seyyed Javad Hosseini-vashan
Abstract
To evaluate the effects of different of barberry pulp (BP) on production traits, blood parameters and immune system of broilers under heat stress, an experiment with 160 male Ross 308 chicks in a completely randomized design with 4 treatments, 4 replicates and 10 chicks each were done. A basal corn-soybean ...
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To evaluate the effects of different of barberry pulp (BP) on production traits, blood parameters and immune system of broilers under heat stress, an experiment with 160 male Ross 308 chicks in a completely randomized design with 4 treatments, 4 replicates and 10 chicks each were done. A basal corn-soybean diet (Control) and three other treatments were diets contained the levels of 2.5, 5 and 7.5 percent barberry pulp treatment was fed. The experimental period was 42 days. The cyclic daily heat stress was done from 28 to 42 days. In this period, daily room temperature was increased from 21oC to 38±2°C during 10:00 until 17:00 hours. The treatments had no significant effects on body weight, feed conversion ratio, feed intake, carcass yield, heart, bursa of fabricius and liver. The relative weight of breasts and bursa of fabricus were increased when birds received 7.5 percent Barberry pulps (BP) compared to control. Serum concentration of cholesterol and HDL and liver enzymes (ALT and AST) and immune system were not affected by the levels of BP treatments. However the BP diets decreased the serum concentration of serum triglycerides and LDL. The blood concentration of glucose were increased by different levels of BP. The levels of 2.5% of BP increased the total protein as compared to control. Therefore, this findings were proposed since Barberry pulps had no any negative effects on production parameters and an improvement in the blood and immune system up to 7.5 %, it could be used in HS broilers.
H. Esmaeili; S. N. Mosavi; N. Eila; H. Mohammadi
Abstract
A total of 480 one-day-old male turkey (B.U.T.6) were assigned to eight treatments with six replicates and 10 birds in each replicate in a 4x2 factorial arrangement. Treatment groups were four ideal ratios of digestible Arg to Lys (85, 95, 105, and 115%) and two levels of CreAmino (0 and 0.06%) as a ...
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A total of 480 one-day-old male turkey (B.U.T.6) were assigned to eight treatments with six replicates and 10 birds in each replicate in a 4x2 factorial arrangement. Treatment groups were four ideal ratios of digestible Arg to Lys (85, 95, 105, and 115%) and two levels of CreAmino (0 and 0.06%) as a guanidino acetic acid (GAA) source. Body weight gains (BWG), feed conversion ratio (FCR) and feed intake (FI) were measured during two periods of starter (0-21d) and grower (22-49d). At the end of experiment (49 d) two birds per replicate were selected and slanghtered and their carcass traits were measured. The main effect of Arg:Lys on BWG was significant during starter period (P<0.05). Birds fed diets with 85 % Arg:Lys ratio without GAA had significantly lower BWG compared to 105 and 115 % ratios (P<0.05). Dietary supplementation of GAA improved the lower BWG. During the growing and overall periods, dietary addition of GAA significantly decreased FI (P<0.05). FCR was significantly higher for birds fed diets with 85% digestible Arg:Lys compared to the higher Arg:Lys ratios at starter period (P<0.05). Dietary supplementation of GAA (0.06%) significantly improved FCR (P<0.05). The main effect of GAA addition (0.06%) was significant for carcass, breast and wing yield (P<0.05). Rresults of the current experiment showed tha dietary GAA supplementation has a potential to compensate low Arg:Lys ratio in turkey poults, leading to improved growth performance.
Hossein Gholami; A. Gerami; K. Reza YAzi; M. Rezaei
Abstract
Abstract: In these models, chemical composition such as CP, Ash, EE, ADF, NDF and NFE used as an independent variable for estimation energetic value of Iranian sainfoin according to chemical composition and gas test method data to complete nutritive value the tables of Iranian feedstuff. The data were ...
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Abstract: In these models, chemical composition such as CP, Ash, EE, ADF, NDF and NFE used as an independent variable for estimation energetic value of Iranian sainfoin according to chemical composition and gas test method data to complete nutritive value the tables of Iranian feedstuff. The data were collected from animal nutrition laboratory of Animal Science Research Institute (ASRI) and some other labs of Educational and research centers of the IRAN. For each above Chemical composition fitted equations for Linear, logarithmic, inverse, quadratic, cubic, power, S, and exponential were done. Comparison the equations of tables showed that the fitted equations on the base of CP as independent variable are the best equations. Among the fitted equations of CP, the Quadratic for its precision was chosen. For ME estimation of sainfoin hay used CP as independent predictor and in this regard estimated TDN, metabolizable energy, net energy for lactation (NEL) and Net energy for maintenance(NEm) were equal 65.22,2.43,1.44 and 1.17 Mcal/Kg DM. receptively.
Ali javanrouh; R. Vaez Torshizi; Ali akbar Masoudi; alireza ehsani
Abstract
Body compositions in broiler are important economic traits. In order to identify loci associated with body composition traits, genome-wide association study (GWAS) was carried out in a chicken F2 population, derived from a reciprocal cross between Azerbaijan indigenous chickens and Aryan broiler line ...
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Body compositions in broiler are important economic traits. In order to identify loci associated with body composition traits, genome-wide association study (GWAS) was carried out in a chicken F2 population, derived from a reciprocal cross between Azerbaijan indigenous chickens and Aryan broiler line using Illumina 60K Chicken SNP Beadchip. For each bird, a total 6 traits including carcass weight, breast weight, drumstick and thigh weight and their percentage traits were recorded. The association between the identified SNPs and body composition traits was estimated by general linear model (GLM) and compressed mixed linear model (CMLM). A total of 22 SNPs were found in the genome-wide significance and suggestive levels. All detected SNPs were located in internal, upstream and/or downstream of candidate genes related to our studied traits. In conclusion, the identified candidate genes have molecular functions related to body composition traits. So, these candidate genes can be applied in the chicken breeding scheme.
