Essa Dirandeh; Mohammad Kazemi Fard; Tannaz Saberifar
Volume 24, Issue 2 , July 2022, , Pages 227-235
Abstract
The occurrence and spread of inflammation can affect the quantity and quality of eggs in laying hens. Therefore, the aim of this study was to evaluate the effect of soy Gensitein (GEN)on systemic inflammatory status and performances of laying hens post-peak. The research was performed in a completely ...
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The occurrence and spread of inflammation can affect the quantity and quality of eggs in laying hens. Therefore, the aim of this study was to evaluate the effect of soy Gensitein (GEN)on systemic inflammatory status and performances of laying hens post-peak. The research was performed in a completely randomized design, during a period of about 8 weeks, using 80 laying hens of High Line W-36 strains (older than 43 weeks). Experimental treatments were control group (basal diet) and genistein group (basal diet+ 20mg GEN/kg of diet). At the end of experiment, five hens from each treatment were laughter and 50 g of liver sample were taken for gene expression of IL-1, IL-2, TNF-α, COX-1 and COX-2. Results showed that soy GEN decreased gene expression of IL-1 (245 fold), IL-2 (3.53 fold), IL-6 (2.68 fold), TNF-α (4.83 fold), COX-1 (3.92 fold) and COX-2 (1.73 fold) compared to the control group. Laying hens fed GEN diets had higher feed intake and better conversion ratio and had higher egg production rates than the control group.The results of this study showed that soy GEN could reduce inflammation in the liver of laying hens post-peak and improve production performances.
mohammad ali ahangarani; Mohammadreza Dehghani; abbas ali naserian
Volume 23, Issue 2 , July 2021, , Pages 179-189
Abstract
The aim of this research was to investigate the effect of adding fat powder and flaxseed oil in milk on performance, growth, health, blood and rumen parameters of 45 suckling calves (avarage body weight = 38 ± 0.5 kg) in a compeletly randomized design in 10℃ of average temperature from d 3 to ...
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The aim of this research was to investigate the effect of adding fat powder and flaxseed oil in milk on performance, growth, health, blood and rumen parameters of 45 suckling calves (avarage body weight = 38 ± 0.5 kg) in a compeletly randomized design in 10℃ of average temperature from d 3 to 30 of age in individual boxes. Experimental treatments included: 1- basal starter and milk without fat supplement (control) 2- basal starter and milk with fat powder (10 g/liter of milk) 3- basal starter and milk with flaxseed oil (10 g/liter of milk). Daily weight gain from d 3 to 30 and weight at d 30 were higher in flaxseed oil treatment than control treatment (P ≤ 0.05). Calves fed flaxseed oil treatment had higher hip height than control treatment at d 30 (P ≤ 0.05). Blood cholesterol concentration was higher in control treatment than flaxseed oil treatment and blood cortisol concentration was lower in flaxseed oil treatment than control treatment (P ≤ 0.05). The ratio of total protein to albumin in flaxseed oil treatment was lower than control treatment (P ≤ 0.05). Ruminal parameters were not affected by the experimental treatments. The results of this research indicated that using of fat sources including linolenic acid as flaxseed oil in milk have a positive effect on the performance, growth and health during the first month after birth of dairy calves.
mohammad reza jamali; Mohammad Reza Ghorbani; ali aghaei; mohammad noshad
Volume 23, Issue 1 , March 2021, , Pages 131-142
Abstract
This experiment was conducted to study the effect of different dietary n-6: n-3 fatty acid (FA) ratio on performance, egg quality, some blood and reproductive parameters of Japanese quails breeder. A total of 720 Japanese quails (Coturnix coturnix japonica) were used in a completely randomized ...
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This experiment was conducted to study the effect of different dietary n-6: n-3 fatty acid (FA) ratio on performance, egg quality, some blood and reproductive parameters of Japanese quails breeder. A total of 720 Japanese quails (Coturnix coturnix japonica) were used in a completely randomized design with five treatments, six replicates and 24 birds (16 females and eight males) in each replicate. Dietary treatments were control (n- 6: n-3 FA ratio were 13:1) and different n-6: n-3 FA ratios (1:1, 3:1, 6:1 and 9:1). The results showed that, quails fed diet with n-6: n-3 FA ratio of 1:1 had the highest feed intake in comparison with the others (P <0.05). Egg mass of quail was increased significantly when their diets containing n-6: n-3 FA ratio of 6:1, in comparison with 9:1 and control (P <0.05). The birds fed diets containing n-6: n-3 FA ratio of 1:1 and 6:1 had higher eggs Haugh unit rather than control (P <0.05). Feeding quails with diets containing n-6: n-3 FA ratio of 1:1 to 9:1 reduced serum triglyceride concentration compared to the control group. Blood cholesterol concentration of birds that fed diets containing n-6: n-3 FA ratio of 1:1 and 6:1 was lower than control and blood glucose was the highest in the birds that fed diets containing n-6: n-3 FA ratio of 1:1 (P <0.05). The results of this experiment showed that the use of dietary n-6: n-3 FA ratio of 6:1 in breeder quail diets can improves production performance.
Mojdeh Mahmoudi Zarandi; Mohammad Rokouei; Mehdi Vafaei Valleh; Ali Maghsoudi
Volume 22, Issue 1 , March 2020, , Pages 9-22
Abstract
This study was done in order to estimate genetic parameters of growth and feed efficiency traits in Japanese quail. The data set consisted of 7762 records for feed efficiency traits and 12113 records for body weight gain traits were collected at Research Center of Special Domestic Animals, University ...
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This study was done in order to estimate genetic parameters of growth and feed efficiency traits in Japanese quail. The data set consisted of 7762 records for feed efficiency traits and 12113 records for body weight gain traits were collected at Research Center of Special Domestic Animals, University of Zabol. The following traits including body weight gain from 20 to 25, 25-30, 30-35, 35-40, 40-45 and from 0 to 45 days of age, feed intake, feed conversion ratio and residual feed intake from 20 to 45 days of age were evaluated. The genetic parameters were estimated through single and bivariate animal models via Gibbs sampling method. Heritability estimates for body weight gain varied from 0.02 to 0.23 and for feed intake, feed conversion ratio, residual feed intake was in ranges of 0.04 to 0.11. Genetic correlations estimates between body weight gain and feed conversion ratio 20-25, body weight gain and feed conversion ratio 25-30, body weight gain and feed conversion ratio 30-35, body weight gain and feed conversion ratio 35-40, body weight gain and feed conversion ratio 40-45 were -0.56, -0.49, -0.57, -0.70 and 0.25 respectively. Considering estimated genetic correlations of this study, we recommend that selection for body weight gain and decrease feed efficiency have potential to improve feed efficiency traits in Japanese quail. It is expected that by selecting for these traits the costs of breeding programs such as feeding and phenotyping would be reduced.
Mehdi Vafaye Valleh; nahid Karimi zandi; Mahdeieh Najmadini
Volume 21, Issue 2 , July 2019, , Pages 193-207
Abstract
In this research, the effect of in ovo injection of egg yolk of native kahazak chicken into the egg yolk of the commercial Ross 308 strain at prior to incubation on some metabolic-related parameters were tested in the resulting progeny. The search parameters included feed intake, feed conversion ratio, ...
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In this research, the effect of in ovo injection of egg yolk of native kahazak chicken into the egg yolk of the commercial Ross 308 strain at prior to incubation on some metabolic-related parameters were tested in the resulting progeny. The search parameters included feed intake, feed conversion ratio, some of serum biochemical parameters, malondialdehyde concentration as well as relative expression of AMP-activated protein kinase (AMPK) and Neuropeptide Y (NPY) genes in progeny's brain tissue. To achieve this goal, 320 fertile Ross 308 eggs were equally allocated in a completely randomized design into two experimental groups, those injected with Khazak yolk (Test) and control group. Blood and tissue samples were collected at the end of experiment and evaluated for the parameters noted. Compared with the control group, khazak egg-yolk injection resulted in a significant improvement in the feed conversion ratio as well as significant decreases in serum triglyceride, triglyceride/HDL-C ratio, relative visceral fat mass content and levels of AMPK expression in the progeny's brain. In contrast, Khazak yolk injection had no effect on the 45-day body weight, cumulative feed intake, relative brain weight, serum glucose, cholesterol and LDL-c levels but also had no effects on malondialdehyde concentration and NPY expression in progeny brain tissue. According to the results of this study, the injection of native Khazak egg yolk into the yolk of the commercial Ross 308 eggs have effectively improved the feed efficiency and reduced AMPK expression in the diencephalon region of the progeny's brain.
nader papi
Volume 20, Issue 2 , August 2018, , Pages 257-268
Abstract
This study was conducted to evaluate the effects of dietary substitution of different levels of Maize silage (MS) with Jerusalem artichoke aerials part silage (JAAPS) on feed intake, digestibility and microbial protein syntheses in twenty Chall male sheep (live body weight of 65.3±2.3 kg). Four ...
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This study was conducted to evaluate the effects of dietary substitution of different levels of Maize silage (MS) with Jerusalem artichoke aerials part silage (JAAPS) on feed intake, digestibility and microbial protein syntheses in twenty Chall male sheep (live body weight of 65.3±2.3 kg). Four iso-energetics and iso-nitrogenus diets (forage-to-concentrate ratios; 64:36) were formulated in which MS was replaced by different levels (0, 180, 360, or 540 g/kg dietary DM) of JAAPS. The diets were fed to four experimental animals groups in a completely randomized design for a 31-days period. Dry matter intake and dry matter digestibility were 2139 and 699 in control diet and 2095 g/day and 697 g/kg DM in diet contains 540 g/kg DM JAAPS respectively. The replacement of MS by JAAPS did not affect dry matter intake and nutrients intake. Digestibility of dietary nutrients was not affected by experimental diets. By replacing the JAAPS instead of MS, there was no significant statistical change in the microbial protein synthesis. It is concluded that the partial substitution of MS for JAAPS, up to 540 g/kg DM, in diet of sheep has no adverse effect on feed intake and diet digestibility. So the Jerusalem artichoke aerial parts could be used as a silage in sheep diets.
Masoud Norozi-ِDeeyarjan; ali assadi-alamouti; Ahmad Afzalzadeh; mohsen danesh mesgaran
Volume 19, Issue 4 , March 2018, , Pages 751-764
Abstract
This study examined the effects of partial replacement of soybean meal (SBM) with heat-treated soybean meal (HSBM) in heat-stressed cows. 32 multiparous Holstein cows (DIM = 110 ± 20; milk yield = 40 ± 4.1 kg) were used in a complete block randomized design with a 2×2 factorial arrangment ...
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This study examined the effects of partial replacement of soybean meal (SBM) with heat-treated soybean meal (HSBM) in heat-stressed cows. 32 multiparous Holstein cows (DIM = 110 ± 20; milk yield = 40 ± 4.1 kg) were used in a complete block randomized design with a 2×2 factorial arrangment of treatments. Treatments included two dietary crude protein levels (i.e. 17 and 15.5%) each combined with HSBM partially replaced for SBM. The experiment was conducted in two periods of 28 days with the last seven days for sampling and collection of data of tempreature, nutrient intake and digestibility and blood variables. Average THI showed that cows were in mild heat stress (70.60 and 71.50 for periods 1 and 2, respectively)(p > 0.05). Diets with 15.5% CP and based on HSBM increased intakes of dry and organic matter (p < 0.05); however, this was not observed in diets with 17% CP. Milk yiled and composition, apparent nutrient digestibility and blood variables were unaffected (p > 0.05). Butyric and isovaleric acid were increased in cows received HSBM (p < 0.05); however, level of CP had no effect. Results showed that feeding HSBM in diets with 15.5% CP could be regarded as a nutritional sterategy for improving DM intake of mild heat-stressed cows.
Alireza Karampour; Farokh Kafilzadeh
Volume 18, Issue 3 , October 2016, , Pages 491-500
Abstract
This study was conducted to determine the effects of addition of the pomegranate seed oil (PSO) in the diet on growth performance, diet digestibility and rumen fermentation parameters of fattening lambs. Twenty one Sanjabi lambs, with average body weight of 27.5±2.6 kg and 3 months of age, were ...
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This study was conducted to determine the effects of addition of the pomegranate seed oil (PSO) in the diet on growth performance, diet digestibility and rumen fermentation parameters of fattening lambs. Twenty one Sanjabi lambs, with average body weight of 27.5±2.6 kg and 3 months of age, were used in a completely randomized design with 3 treatments and 7 replicates.The experimental treatments included diet free of PSO (control diet), and diets containing 2 and 4% of PSO. Daily feed intake, diet digestibility and rumen fermentation parameters were measured by standard methods. The lambs were weighed at the beginning and the end of the finishing period for estimation of average daily gain (ADG). The DMI in the lambs fed on the diets containing PSO was higher than that of control (P<0.05). There was no differences along treatments concerning ADG, although, in lambs receiving PSO thetrend was to be increased. Dry matter and organic matter digestibility in the lambs fed on 4% PSO were higher than those of the other groups (P<0.05). Concentrations of volatile fatty acids (VFAs) were not affected except valeric acid, however, incorporation of 4% PSO to the diet increased molar percentage of propionic acid and decreased acetate to propionate ratio, significantly. Ammonia nitrogen concentration was not affected by adding PSO to diet. The results of this experiment suggest that pomegranate seed oil has potential to improve the digestibility and ruminal fermentation efficiency of the diet of fattening lambs.
Ali Mohammad Salimian; Seyed Ali Tabeidian; Hossein Irandoust
Volume 18, Issue 1 , April 2016, , Pages 141-150
Abstract
To investigate the effect of cinnamon, turmeric and carnation powders on growth performance, carcass characteristics, morphological and pH changes of intestine and blood serum oxidation status in broilers, 450 unsexed Ross 308 day-old broiler chicks were randomly allotted in a completely randomized design ...
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To investigate the effect of cinnamon, turmeric and carnation powders on growth performance, carcass characteristics, morphological and pH changes of intestine and blood serum oxidation status in broilers, 450 unsexed Ross 308 day-old broiler chicks were randomly allotted in a completely randomized design with six treatments, five replicates and 15 birds per each replicate, for 42 days. The broilers were fed either a basal diet (without feed additive as control) or basal diet supplemented with 3 g/kg of cinnamon, turmeric and carnation powders and 0.6 g/kg of their mixture (2 g/kg of each) as well as 0.5 g/kg of flavophospholipol. Feed intake, weight gain and FCR as well as carcass characteristics were not affected by experimental diets. The jejunal villi height to crypt depth ratio was turned out to be significantly higher in the diet containing the mixture of cinnamon, turmeric and carnation than those of control, flavophospholipol and cinnamon diets (P<0.05). In addition, the feed additives appeared to reduce the pH of duodenal digesta compared to the control (P<0.05). Moreover, blood serum MDA of chickens fed basal diet and diet containing carnation was significantly higher than the other experimental diets (P<0.05). In conclusion, turmeric powder alone or in combination with cinnamon and carnation can be considered as an appropriate alternative to antibiotics in broiler diets, and used for improving the pH and morphological traits of intestine as well as blood serum oxidative stability.
Mokhtar Malaki; Mohammadali Norouzian; Aliakbar Khadem
Volume 15, Issue 2 , October 2013, , Pages 109-115
Abstract
This research was conducted to evaluate the effect of different zinc (Zn) sources on performance, bloodmineral and cell counts of Zandi lambs. 18 male lambs at weaning were supplemented with two differentsources of zinc, 25 ppm ZnSO4 and 25 ppm zinc-peptide added to the basal diet as control. Live bodyweight, ...
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This research was conducted to evaluate the effect of different zinc (Zn) sources on performance, bloodmineral and cell counts of Zandi lambs. 18 male lambs at weaning were supplemented with two differentsources of zinc, 25 ppm ZnSO4 and 25 ppm zinc-peptide added to the basal diet as control. Live bodyweight, weight gain and feed efficiency improved with Zn-peptide supplementation (P<0.05). Sera Znconcentration was higher and copper and iron concentration was lower in zinc supplemented groups(P<0.05). Supplementation of zinc had no effect on blood cell counts except for white blood cells thatdecreased with zinc peptide supplementation (P<0.05). It was concluded that adding 25 ppm zinc peptideto fattening lamb diet improved performance and cause to higher level of blood zinc.