Ali Mansouri; Mohammad Hossein Nemati
Volume 25, Issue 2 , July 2023, , Pages 215-227
Abstract
Performance appraisal is the most important focal points of production units. In this study, the Casual Comparative approach applied to measure the performance of active poultry units in Zanjan province. Among the various performance measurement models, total productivity index of Malmquist Index was ...
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Performance appraisal is the most important focal points of production units. In this study, the Casual Comparative approach applied to measure the performance of active poultry units in Zanjan province. Among the various performance measurement models, total productivity index of Malmquist Index was selected because of its greater effectiveness in measuring growth. In order to achieve a comprehensive model, all poultry farms in Zanjan province were considered for study; However, due to the lack of data required, only 30 poultry farms were selected for performance evaluation. In this study, the amount of initial hatching, feed consumption, energy costs, personnel costs and healthcare costs were selected as input variables and final slaughter weight and fertilizer weight were selected as output variables. Specialized software GAMS.34.1.0 and DEA SOLVER (V8) were used for data analysis. The result showed that among the existing decision units (DMUs), in the first period AL12 with 34.9% growth had the highest total productivity growth and AL14 with a decrease of 14.4% Has had the highest productivity decline. Meanwhile, AL14 with the changes in the method of feeding poultry in the second period has had the highest growth of total productivity. On the other hand, although the AL12 unit has had the highest growth in the first period, but due to lack of attention to costs Energy and non-optimal use of grain consumed in the second period are classified as low-growth decision-making units.
Mohammad Hossein nemati; Mustafa Hajilou; sayed abdoullah hosseini; seyyed saeid mousavi
Volume 23, Issue 4 , January 2022, , Pages 549-559
Abstract
In this research the effect of Bioplus B2 probiotic and galactooligosaccharide prebiotic (GOS) on performance, egg quality, and some blood parameters of commercial laying hens were investigated in a sample of 216 hy-line laying hens (w36) with the same average weight aging 50 to 62 weeks for a period ...
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In this research the effect of Bioplus B2 probiotic and galactooligosaccharide prebiotic (GOS) on performance, egg quality, and some blood parameters of commercial laying hens were investigated in a sample of 216 hy-line laying hens (w36) with the same average weight aging 50 to 62 weeks for a period of 12 weeks in a completely randomized design with 6 treatments, 6 replications and 6 hens per each replication in the cage system. Experimental treatments included 1) without additives (as control), 2) diets containing 0.1% Bioplus B2 probiotic, 3) to 6) diets; containing, 0.05, 0.1, 0.15 and 0.20 % of galactooligosaccharides prebiotic, respectively. The results indicated that both egg weight and mass was increased significantly (P<0.05) in the Bioplus B2 probiotic treatment. Egg production percentage, feed intake and feed conversion ratio were not significantly influenced by treatments. Using galactooligosaccharide at the levels of 0.05, 0.1 and 0.2 percent improved dry eggshell weight significantly while the levels of 0.05, 0.15 and 0.2 percent increased eggshell weight per unit area compared to the control (P<0.05). Total protein and albumin of serum increased in the Bioplus B2 treatment (P<0.05). Using Bioplus B2 probiotic and 0.15% galactooligosaccharide significantly decreased blood cholesterol level (P<0.05). In general, the results showed that the using of prebiotic galactooligosaccharide at the level of 0.15 % increases the weight of eggshell per unit area, decreases the blood serum cholesterol, and improves some performance traits compared to control group, therefore it can be used instead of probiotic Bioplus B2.
Mohammad Hossein nemati; Hassan Almasi; Reza Masomi; mohamad hossein shahir
Volume 23, Issue 3 , September 2021, , Pages 447-457
Abstract
In this research the effect of using domestic (Multibehcil) and imported (Bioplus B2) probiotic supplements and Avilamycin antibiotics were investigated on performance, parameters of blood lipid and small intestine morphology by a sample of 360 male Ross-308 broilers aging 11 to 42 days-old in a completely ...
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In this research the effect of using domestic (Multibehcil) and imported (Bioplus B2) probiotic supplements and Avilamycin antibiotics were investigated on performance, parameters of blood lipid and small intestine morphology by a sample of 360 male Ross-308 broilers aging 11 to 42 days-old in a completely randomized design with 6 treatments, 4 replications and 15 chickens per each replicate. Experimental treatments included 1) without additive (control), 2) diets containing 0.1% of commercial bioplus B2 probiotic, 3) diets containing 0.01% of avilamycin antibiotic and treatments 4) to 6) diets containing 0.05%, 1% and 0.15% of Multibehcil, respectively. The results showed that body weight and feed conversion ratio was improved by using bioplus B2 probiotic and antibiotic (P < 0.05). Body weight and feed conversion ratio in birds receiving 0.1% and 0.15% of Multibehcil were not significantly different from birds receiving bioplus probiotic. Feed intake was not affected by the experimental treatments. Humoral immune response and intestinal morphological parameters in birds receiving 0.15% of Multibehcil was not significantly different from the control group and it was statistically equal to the groups receiving bioplus probiotics and antibiotics. The LDL level of blood showed a significant decrease in Bioplus B2, antibiotic and 0.15% of Multibehcil treatments (P < 0.05). In general, the results indicated that using of Multibehcil at the level of 0.15 percent can be a suitable alternative for both Bioplus B2 and Avilamycin during grower and finisher period in broilers.
Saifali Varmaghany; mohammad amir karimi turshizi; hoshang lotfulahian; hosang jafari; Mohammad Hossein nemati
Volume 20, Issue 1 , May 2018, , Pages 69-82
Abstract
In order to investigate the effect of fresh whole garlic bulb (FGBP) on production index, immune system and carcass characteristics of Arian broiler strain, 592 male one day old chicks were studied during 42 days in two independent experiments. The first experiment was conducted under normal temperature ...
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In order to investigate the effect of fresh whole garlic bulb (FGBP) on production index, immune system and carcass characteristics of Arian broiler strain, 592 male one day old chicks were studied during 42 days in two independent experiments. The first experiment was conducted under normal temperature condition (NTC) with 4 treatments, 4 replicates and 21 birds per replicate and second experiment was conducted under cold temperature condition (CTC) with 4 treatments, 4 replicates and 16 birds per replicate basis balanced completely randomized design. The treatments were 1- basal diet without FGBP (control group), 2, 3 and 4 basal diet containing 0.5, 1 and 1.5 percent FGBP, respectively under both NTC and CTC. The highest level of body weight gain and production index were related to treatment of basal diet with 0.5 percent FGBP treatment under both NTC and CTC (P
Mohammad Hossein Nemati; Seyed Abdoallah Hosseini; Ali Mansori; Seyed Saeid Mousavi
Volume 18, Issue 3 , October 2016, , Pages 387-397
Abstract
This study was conducted to rank the broiler farms based on buildings, installations and equipment and its effect on production factors. To determine the contribution of each factor in ranking of farms, a multi-criteria decision analysis (SAW) was used. Data of 108 broilers were recorded in specific ...
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This study was conducted to rank the broiler farms based on buildings, installations and equipment and its effect on production factors. To determine the contribution of each factor in ranking of farms, a multi-criteria decision analysis (SAW) was used. Data of 108 broilers were recorded in specific forms and the amount of investment per broiler was calculated for individual factors. To calculate the adjusted weights of parameters, 20 experts were consulted as was specified in forms. The results showed that ventilation (fans and air inlets), roof and wall insulation in a poultry houses have represented about 55 percent of technological factors. The breeding units holding rank 1 and 2 enjoyed high degree of mechanization. As the level of mechanization was improved, the density of chickens per unit area was also increased; These units used more tunnel ventilation and large fans, and their ceiling were insulated using fiberglass, polystyrene, corrugated plastic and thickness of walls were also 35 cm. Mostly external heaters have been installed. Feeding and drinker systems have exerted no important effect on production. Slaughter weight and survival percent were not affected by the degree of mechanization but feed intake and feed conversion ratio decreased and production index increased (p<0.01) in the breeding units holding rank 1 and 2. In general in poultry house, ventilation system and ceiling and wall insulation improved energy efficiency and increased the efficiency of the system.
Mohammad Hossein Nemati; Mohammad Hossein Shahir; Mohammad Taher Harakinezhad; Houshang Lotfollahian
Volume 15, Issue 1 , July 2014, , Pages 45-53
Abstract
This experiment was conducted to determine the effect of vitamin C (VC) and coenzyme Q10 (CoQ10) onimmunity response of broilers in cold stress condition using 500 male chicks in a completely randomizeddesign with 5 treatments and five replicates. Treatments were: positive control (PC, normal conditionsgrowth ...
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This experiment was conducted to determine the effect of vitamin C (VC) and coenzyme Q10 (CoQ10) onimmunity response of broilers in cold stress condition using 500 male chicks in a completely randomizeddesign with 5 treatments and five replicates. Treatments were: positive control (PC, normal conditionsgrowth without antioxidants), negative control (NC, cold stress without antioxidants), cold stress + VC(300 mg/kg diet), cold stress + CoQ10 (40 mg/kg diet) and cold stress + VC + CoQ10 at above mentioneddoses. To induce cold stress, from day 15 until end, temperature fixed at 15oC. Vaccine titers, humeraland cellular immune response and relative immune organs weight were studied. Results showed that coldstress decreased relative spleen weight but there was no significant difference between treatments.Relative weight of bursa was increased in cold stress condition (P<0.01) and using antioxidant especiallyCoQ10 decreased it (P<0.05). Lymphocyte percent decreased in cold stress (P<0.05). Improved cellmediatedimmune response to subcutaneous injection of phytohemagglutinin and proliferation of Tlymphocyte in vitro were observed (P<0.05). In conclusion, use of antioxidants VC and CoQ10 in the coldstress condition improved immune system activity and decreased mortality