List of Articles مرغ تخم‌گذار

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  1 - اثرات جایگزینی کنجاله سویا با سطوح مختلف کنجاله آفتابگردان مکمل شده با آنزیم پروتئاز بر فلور میکربی روده و ویژگیهای دستگاه گوارش مرغ های تخم‌گذار
  سارا میرزائی گودرزی فاطمه برجی زاده علی اصغر ساکی داریوش علیپور
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  2 - Evaluation of antibiotic resistance patterns and the presence of spvR virulence gene in salmonella isolated from the liver and ovary of industrial layer farms in East Azarbaijan province
  amir allahyari Hossein Nikpiran Younes Anzabi
  10.30495/jvcp.2020.1873299.1239
  Infection with salmonella bacteria causes chronic and acute diseases in poultry that can cause significant economic losses to the poultry industry. SThe aim of the current study was to evaluate antibiotic resistance in salmonella infected layer flocks of East Azarbaijan More

  Infection with salmonella bacteria causes chronic and acute diseases in poultry that can cause significant economic losses to the poultry industry. SThe aim of the current study was to evaluate antibiotic resistance in salmonella infected layer flocks of East Azarbaijan province and to determine the presence of spvR virulence gene in isolated samples. A total of 200 liver and ovary samples were taken from 45 salmonella suspected flocks and cultured in selective and differential growth medium of salmonella. Antibiogram test to determine antibiotic sensitivity was done following isolation of bacteria.  PCR was used to determine the presence of spvR gene with specific primers. The results indicated all isolates were resistant to Erythromycin, Tetracycline, and Trimethoprim-Sulphamethoxazole, and the highest antibiotic resistance was against Doxycycline 94.3%, Danofloxacin 92.6% and Florfenicol 91.7%. Also, the highest sensitivity was against Fosfomycin 94.7%, and Enrofloxacin 74.2%. Results of molecular tests indicated that the spvR gene was present in the majority of layer flocks of East Azarbaijan province (in 88.46% of isolated salmonella). According to the results, it is necessary to prevent the spread of salmonella contamination amongst the laying hens in order to improve the poultry industry and the health of human communities. Manuscript profile
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  3 - Metastatic adenocarcinoma in a layer chicken flock (case report)
  saeed seifi ali afzali larijani
  10.30495/jvcp.2020.671182
  In hens, spontaneous tumors of the ovary and, less frequently, of the oviduct, are common. Leiomyoma and oviduct adenocarcinoma are the most common tumors of the reproductive tract in laying hens. The present article, reports a metastatic adenocarcinoma in an 80 week ol More

  In hens, spontaneous tumors of the ovary and, less frequently, of the oviduct, are common. Leiomyoma and oviduct adenocarcinoma are the most common tumors of the reproductive tract in laying hens. The present article, reports a metastatic adenocarcinoma in an 80 week old commercial layer chicken flock in second-cycle of egg production in Mazandaran province. Eight dead layer hens were referred to division of avian diseases of Amol University. On necropsy examination, the mesentery and serosal surface of the intestine was studded with grayish white nodules. The ovary contained varying sizes of multiple single to lobulated grayish white nodules. Also, ascites were seen in some cases. Tissue samples were taken and placed in 10% neutral buffered formalin. Microscopically, cuboidal neoplastic cells were arranged in acinar and tubular pattern in the serosal layer of intestine. The cells appeared as variable sized cuboidal cells with indistinct cell borders, eosinophilic granular cytoplasm, round nuclei, indistinct nucleoli and fine chromatin granules. The intestinal nodules showed neoplastic cells and structures similar to those of the ovary tumor. Manuscript profile
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  4 - Evaluating the antibiotic resistance pattern of Salmonella isolated from a number of laying poultry flocks in the northwest of the country during 2021 and investigating its relationship with the performance of the mentioned farms
  Zahra Mahdavi Adel Feizi younes anzabi
  10.30495/jvcp.2023.1968910.1387
  Infection with the Salmonella genus of bacteria causes chronic and acute diseases in poultry leading to significant economic losses to the poultry industry. The aim of the present study was to evaluate the antibiotic resistance pattern of Salmonella serotypes isolated f More

  Infection with the Salmonella genus of bacteria causes chronic and acute diseases in poultry leading to significant economic losses to the poultry industry. The aim of the present study was to evaluate the antibiotic resistance pattern of Salmonella serotypes isolated from a number of laying poultry flocks in the northwest of the country and to investigate its relationship with the performance of those farms. Eighty samples were taken from 20 flocks suspected of salmonellosis .The samples were cultured in selective and differential cultures of Salmonella. After isolation of Salmonella serotypes, the antibiogram test was performed to determine the antibiotic sensitivity. In order to check the performance of suspicious flocks, the history of the flock was obtained and the amount of mortality and production drop was calculated by statistical methods.The results indicated that 40% of the flocks were positive in terms of the presence of Salmonella, with 30% of the flocks affected by Salmonella gallinarum, 5% by Salmonella enteritidis, and 5% by concurrent presence of both Salmonella enteritidis and Salmonella gallinarum. The highest antibiotic sensitivity of Salmonella serotypes was recorded from fosfomycin and danofloxacin with a frequency of 100% and soltrim with a frequency of 78.6%. The highest antibiotic resistance was observed against erythromycin with a frequency of 75% and chlortetracycline with a frequency of 53.6%. Based on the results, there was a statistically significant difference in  the amount of flock mortality and production drop between Salmonella negative and Salmonella positive herds (p<0.05). Also, more vigilant use of antibiotics is required due to the high levels of resistance shown by Salmonella against various antibiotic drugs. Manuscript profile
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  5 - Evaluation of the effects of rations with different levels of metabolizable energy on performance of laying hens
  علی Nobakht H.R Hassanzadeh سامان Mahdavi
   This study was conducted to evaluate the effects of rations with different levels of energy on performance of laying hens. The experiment was conducted with two hundred and fifty six laying hens of commercial Hi-Line W-36 strain in a completely randomized design w More

   This study was conducted to evaluate the effects of rations with different levels of energy on performance of laying hens. The experiment was conducted with two hundred and fifty six laying hens of commercial Hi-Line W-36 strain in a completely randomized design with 4 treatment and 4 replicates (16 laying hens in each replicate). Treatments included: (1) diet with amount of metabolizable energy recommended by NRC 1994 (as control group),   (2) diet with 10% higher level of metabolizable energy than recommended by NRC 1994, (3) diet with 10% lower level of metabolizable energy than recommended by NRC 1994 and (4) diet with 15% lower level of metabolizable energy than recommended by NRC 1994 that were used for 10 weeks (from 41 to 51 weeks of age). The results indicated that the amount of feed intake was significantly different among treatments (p<0.05). The highest amount of feed intake (130.50 g) was observed in treatment four with 15% lower level of metabolizable energy than recommended by NRC 1994. The amount of feed price was also significantly different between treatments (p<0.05). The lowest feed price per kilogram of egg produced (5705 Rials) was observed in treatment four with 15% lower level of metabolizable energy than recommended by NRC 1994. There were no significant differences in egg traits among treatments. It can be concluded that using diets with 15% lower level of metabolizable energy than recommended by NRC 1994 in laying hens, can reduce feed costs without affecting egg traits.     Manuscript profile
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  6 - Investigating the effects of using different levels of urea and molasses on performance, some egg traits and blood parameters in late laying period of laying hens
  محمد Narimani علی Nobakht, A حبیب Aghdam Shahryar
  Abstract   This study was conducted to evaluate the effects of using different levels of urea and molasses on performance, some egg traits and blood serum biochemical parameters in late laying period of laying hens. This experiment was conducted with two hundred More

  Abstract   This study was conducted to evaluate the effects of using different levels of urea and molasses on performance, some egg traits and blood serum biochemical parameters in late laying period of laying hens. This experiment was conducted with two hundred and sixteen Hy Line- (W-36) laying hens from 62 to 74 weeks of age in a 3× 2 factorial design with 3 levels of urea (0.25%, 0.5% and 0.75%) and two levels of molasses (0 and 3%). The diets included: 1) 0.25% of urea + 0 percent of molasses, 2) 0.25% of urea + 3 percent of molasses, 3) 0. 5% of urea + 0 percent of molasses, 4) 0.5% of urea + 3 percent of molasses, 5) 0.75% of urea + 0 percent of molasses, 6) 0.25% of urea + 3 percent of molasses. The results of this experiment showed that using 0.5% of urea and 3% of molasses did not have any significant effect in the performance and egg traits (p>0.05) and only produced significant decrease in blood glucose levels (p<0.05). It was concluded that using diets with 0.5% of urea and 3% of Molasses can improve economical efficiency of laying hens by reducing the amount of soybean meal in diets.  Manuscript profile
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  7 - اثرات سطوح مختلف ضایعات چمن‌زنی بر عملکرد و فراسنجه‌های خونی در مرغ‌های تخمگذار
  A. Nobakht
  در این آزمایش تعداد 144 قطعه مرغ تخمگذار سویه‌های لاین W-36 از سن 65 تا 77 هفتگی در 4 تیمار، 3 تکرار (12 قطعه مرغ در هر تکرار) در یک طرح کاملاً تصادفی مورد استفاده قرار گرفتند. ضایعات چمن‌‌زنی به جیره کامل مرغ‌ها که بر پایه ذرت و کنجاله سویا بود، در سطوح 0، 5/1، 3 و 5/4 More

  در این آزمایش تعداد 144 قطعه مرغ تخمگذار سویه‌های لاین W-36 از سن 65 تا 77 هفتگی در 4 تیمار، 3 تکرار (12 قطعه مرغ در هر تکرار) در یک طرح کاملاً تصادفی مورد استفاده قرار گرفتند. ضایعات چمن‌‌زنی به جیره کامل مرغ‌ها که بر پایه ذرت و کنجاله سویا بود، در سطوح 0، 5/1، 3 و 5/4 درصد در گروه‌های 1 تا 4 اضافه شد. نتایج نشان داد که استفاده از سطوح مختلف ضایعات چمن‌‌زنی به صورت معنی‌‌داری عملکرد، صفات کیفی تخم ‌‌مرغ، فراسنجه‌های بیوشیمیایی و سلول‌های ایمنی خون مرغ‌ها را تحت تأثیر قرار داد (05/0>P). بالاترین مقادیر مربوط به تولید توده‌‌ای تخم ‌‌مرغ، خوراک مصرفی، درصد تولید تخم ‌‌مرغ، بهترین ضریب تبدیل خوراک، کمترین قیمت خوراک به ازای هر کیلوگرم تخم ‌‌مرغ تولیدی و بیشترین رنگ زرده با استفاده از 3 درصد ضایعات چمن‌‌زنی به دست آمد. در مقابل این، بیشترین مقدار وزن و وزن مخصوص تخم‌‌ مرغ، بیشترین مقدار سفیده و نیز گلبول‌های قرمز خون در گروه حاوی 5/4 درصد ضایعات چمن‌‌زنی مشاهده گردید. بالاترین سطح  HDLو لمفوسیت و نسبت هتروفیل به لمفوسیت با استفاده از 5/1 درصد ضایعات چمن‌‌زنی به دست آمد. نتایج نهایی نشان داد که در مرغ‌های تخمگذار استفاده از ضایعات چمن‌‌زنی تا 3 درصد جیره موجب بهبود معنی‌‌دار عملکرد، صفات کیفی تخم ‌‌مرغ، فراسنجه‌های بیوشیمیایی و سلول‌های ایمنی خون می‌‌شود. با این وجود، استفاده از 5/4 درصد ضایعات چمن‌‌زنی در مقایسه با گروه شاهد نه تنها اثرات سویی بر پارامترهای ذکر شده ندارد، بلکه باعث بهبود آنها نیز می‌‌شود. Manuscript profile
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  8 - اثر سطوح مختلف تفاله دانه انار همراه با مولتی آنزیم بر عملکرد، تولید تخم مرغ و وضعیت آنتی اکسیدان سرم در مرغان تخم‌گذار
  A.A. Saki M. Rabet P. Zamani A. Yousefi
  مطالعه حاضر به منظور بررسی اثرات سطوح مختلف تفاله دانه انار بر عملکرد و برخی فاکتورهای خونی در مرغان تخم‌گذار انجام گرفت. تعداد 96 مرغ تخم‌گذار سویه‌های لاین W-36 در سن 24 هفتگی به صورت تصادفی در 4 تیمار حاوی سطوح 0 (گروه کنترل)، 5، 10 و 15 درصد تفاله دانه انار و 4 تکرا More

  مطالعه حاضر به منظور بررسی اثرات سطوح مختلف تفاله دانه انار بر عملکرد و برخی فاکتورهای خونی در مرغان تخم‌گذار انجام گرفت. تعداد 96 مرغ تخم‌گذار سویه‌های لاین W-36 در سن 24 هفتگی به صورت تصادفی در 4 تیمار حاوی سطوح 0 (گروه کنترل)، 5، 10 و 15 درصد تفاله دانه انار و 4 تکرار (6 پرنده در هر تکرار) قرار داده شدند. نتایج نشان داد سطوح مختلف تفاله دانه انار بر مصرف خوراک، توده تخم مرغ تولیدی، وزن تخم مرغ تولیدی، ضریب تبدیل خوراک و افزایش وزن بدن اثر معنی‌داری نداشت. مکمل نمودن تفاله دانه انار در سطح 5 درصد تولید تخم مرغ را افزایش داد که با سطح 15 درصد تفاوت معنی‌دار دارد (05/0P<) اما تفاوتی بین این تیمار و گروه کنترل نشان داده نشد که نمایانگر اثر منفی سطوح بالای تفاله دانه انار در جیره مرغان تخم‌گذار است. واحد ‌هاو، شاخص زرده و سفیده و همچنین وزن پوسته تخم مرغ، نسبت پوسته و مقاومت در برابر شکنندگی پوسته به طور معنی‌دار تحت تأثیر تفاله دانه انار در جیره قرار نگرفت. مکمل نمودن تفاله دانه انار اثر معنی‌داری بر تری‌گلیسیرید سرم، لیپوپروتئین با چگالی بالا و کل آنتی اکسیدان سرم نداشت. اما افزایش معنی‌داری (05/0P<) درغلظت مالون دی آلدهاید و کلسترول در سطح 5 درصد تفاله دانه انار در مقایسه با گروه کنترل نشان داده شد. نتایج نشان داد مکمل نمودن تفاله دانه انار تا سطح 15 درصد در بهبود تولید مؤثر است، اما سطوح بالاتر اثرات مخربی بر عملکرد مرغان تخم‌گذار دارد. مکمل نمودن تفاله دانه انار، سطح کلسترول را در خون مرغان تخم‌گذار افزایش داد. Manuscript profile
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  9 - اثرات سطوح مختلف مکمل‌های معدنی و ویتامینی در مرغ‌های تخم‌گذار بر عملکرد در طی مرحله اول تخم‌گذاری
  A. Nobakht
  آزمایشی به منظور ارزیابی اثرات سطوح مختلف مکمل‌های معدنی و ویتامینی بر عملکرد مرغ‌های تخم‌گذار در سن 37 تا 39 هفتگی انجام گردید. 240 قطعه مرغ تخم‌گذار سویه‌های لاین W-36 به صورت تصادفی به 5 تیمار، 4 تکرار و 12 قطعه مرغ در هر تکرار اختصاص داده شد. مکمل‌های معدنی و ویتامی More

  آزمایشی به منظور ارزیابی اثرات سطوح مختلف مکمل‌های معدنی و ویتامینی بر عملکرد مرغ‌های تخم‌گذار در سن 37 تا 39 هفتگی انجام گردید. 240 قطعه مرغ تخم‌گذار سویه‌های لاین W-36 به صورت تصادفی به 5 تیمار، 4 تکرار و 12 قطعه مرغ در هر تکرار اختصاص داده شد. مکمل‌های معدنی و ویتامینی در این آزمایش در سطوح (0، 25/0 درصد (بر اساس توصیه کارخانه)، 35/0 درصد، 45/0 درصد و 55/0 درصد در تغذیه مرغ‌های تخم‌گذار مورد استفاده قرار گرفتند. نتایج آزمایش نشان داد که استفاده از سطوح مختلف مکمل‌های معدنی و ویتامینی عملکرد مرغ‌های تخم‌گذار را به صورت معنی‌‌داری تحت تأثیر قرار می‌‌دهد (05/0>P). بیشترین درصد تخم‌گذاری (48/83)، بیشترین توده تخم‌‌مرغ تولیدی (89/47 گرم)، بهترین ضریب تبدیل خوراک (09/2) و کمترین هزینه خوراک به ازای هر کیلوگرم تخم‌‌مرغ تولیدی (6760 ریال) در گروهی که از 45/0 درصد از مکمل‌های معدنی و ویتامینی در جیره استفاده شده بود، مشاهده گردید. سطوح مختلف مکمل‌های معدنی و ویتامینی وزن تخم‌‌مرغ‌‌ها، مقدار خوراک مصرفی روزانه و صفات کیفی تخم‌‌مرغ را تحت تأثیر قرار ندادند. نتایج نهایی این آزمایش نشان داد که در جریان مرحله اول تخم‌گذاری مرغ‌های تخم‌گذار، افزایش سطح مکمل‌های معدنی و ویتامینی جیره تا 45/0 درصد می‌‌تواند عملکرد را بهبود داده و هزینه تولید تخم‌‌مرغ را کاهش دهد. Manuscript profile
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  10 - Effect of pepper mint and thymus vulagaris extracts with and without flaxseed on eggs quality of layhng hens.
  Faramarz Keshavarz Moetamedi Reza Taherkhani Timur TanhaGhezli
  In order to survey the effects of extracts of garden thyme and pepper mint and their mixed extracts on yield quality characters of egg, an experiment were done in 2016 in the region of varamin on 80 old laying lineage hen lineage of lohmen light (LSL) in age of 60 to 68 More

  In order to survey the effects of extracts of garden thyme and pepper mint and their mixed extracts on yield quality characters of egg, an experiment were done in 2016 in the region of varamin on 80 old laying lineage hen lineage of lohmen light (LSL) in age of 60 to 68 week as a completely randomized block design with four treatment and five replication. Treatments were consists of control, extracts of pepper mint (0.5 percent), garden thyme (0.5 percent), pepper mint + garden thyme (0.25 % + 0.25%). All extracts of medicinal were used in the form of water dilution. Results of this experiment showed that using simultaneous of pepper mint extracts and garden thyme had significant effect on increasing yolk weight. Using each of medicinal plant extracts by- self had no significant effect on above parameters (p<0.01). Using extracts of garden thyme caused significant effects on Hough unit, cholesterol and density of yolk but had on significant effect on thickness of egg shell. Although mixed application of pepper mint and garden thyme caused increasing of shell thickness but this results were not significant (p<0.01). Manuscript profile
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  11 - Effect of Pepper mint and Thymus vulgaris extracts with and without flaxseed on performance of laying hens.
  Faramarz Keshavarz moetamedi Reza Taherkhani Timur Tanhaghezeli
  In order to survey the effects of extracts of garden thyme and pepper mint and their mixed extracts on yield and quantity characters of egg, an experiment were done in 2016 in the region of varamin on 80 old laying lineage hen lineage of lohmen light( LSL) in age of 60 More

  In order to survey the effects of extracts of garden thyme and pepper mint and their mixed extracts on yield and quantity characters of egg, an experiment were done in 2016 in the region of varamin on 80 old laying lineage hen lineage of lohmen light( LSL) in age of 60 to 68 week as a completely randomized block design with four treatment and five replication. Treatments were consists of control, extracts of pepper mint (0.5 percent), garden thyme (0.5 percent), pepper mint + garden thyme (0.25 % +0. 25%). All extracts of medicinal were used in the form of water dilution.Results of this experiment showed that using simultaneous of pepper mint extracts and garden thyme had significant effect on increasing egg weight, and final percent of yield, egg mass, and decreased feed conversion ratio. Using each of medicinal plant extracts by- self had no significant effect on above parameters (p<0.01). Manuscript profile
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  12 - The Effects using Canola Meal by Using two Levels of Vegetable Oil on Performance, Egg traits and Blood Biochemical Parameters of Laying Hens in Late Laying Period
  ali nobakht mohammad valizadeghan
  This experiment was conducted to evaluate the effects of using canola meal and two levels of vegetable oil on performance, egg traits and blood biochemical parameters of laying hens in late laying period. In this experiment 216 of Hi line (W36) laying hens from 62 to 74 More

  This experiment was conducted to evaluate the effects of using canola meal and two levels of vegetable oil on performance, egg traits and blood biochemical parameters of laying hens in late laying period. In this experiment 216 of Hi line (W36) laying hens from 62 to 74 weeks of age were used in a (3 × 2) factorial pattern with 3 level of canola meal (10.12%, 15.18% and 20.24%) and 2 level of vegetable oil (2% and 4%). This experiment was conducted in a completely randomized design with 6 groups and 3 replicates (with 12 hens in each replicate). The experimental groups included: 1) diet with 6.93% of soybean meal, 10.12% of canola meal and 2% of vegetable oil, 2) diet with 8.58% of soybean meal, 10.12% of canola meal and 4% of vegetable oil, 3) diet with 3.19% of soybean 15.18% of canola and 2% of vegetable oil, 4) diet with 3.19% of soybean meal, 15.18% of canola meal and 4% of vegetable oil, 5) diet without soybean meal, 20.24% of canola meal and 2% of vegetable oil, 6) diet without soybean meal, 20.24% of canola meal and 4% of vegetable oil. The results showed that the replacement of soybean meal by canola meal except of egg weight did not have any significantly effects on performance, egg traits and blood biochemical parameters of laying hens (P>0.05). The highest egg weight (63.62g) was observed by using 15.18% of canola meal. Manuscript profile
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  13 - The effects of different levels of dried pomegranate pulp on performance and blood metabolites of aged laying hens
  علی نوبخت mohammad valizadeghan
  This experiment was conducted to evaluate the effects of different levels of dried pomegranate pulp on performance, egg traits and blood metabolites of aged laying hens. In this experiment 144 Hy- line (W36) laying hens from 65-75 weeks of age in 4 treatments, 3 replica More

  This experiment was conducted to evaluate the effects of different levels of dried pomegranate pulp on performance, egg traits and blood metabolites of aged laying hens. In this experiment 144 Hy- line (W36) laying hens from 65-75 weeks of age in 4 treatments, 3 replicates and 12 hens in each replicate were used in a completely randomized design. Experimental groups included: 1) control group, 2) group with 1.5% pomegranate pulp, 3) group with 3% pomegranate pulp, and 4) group with 4.5% pomegranates pulp. Using pomegranate pulp had significant effects on performance, egg traits and blood parameters of laying hens (P Manuscript profile