F. Mirzhjehgheshlagh
Department of Animal Science, University of Mohaghegh Ardabili, Ardabil, Iran
[ 1 ] - A Review on Biohydrogenation and Effects of Tannin on It
The process called biohydrogenation occurs mainly in ruminant animals and during it, unsaturated fatty acids, and particularly poly-unsaturated ones (linoleic and linolenic) coverts to a saturated form of stearic acid. For many years, the beneficial effects of biohydrogenation intermediate fatty acids like cis-9 trans-11 linoleic acid, the main natural isomer of conjugated linoleic acids (CLA),...
[ 2 ] - The Effects of a Medical Plant Mixture and a Probiotic on Performance, Antioxidant Activity and Weaning Age of Newborn Holstein Calves
The aim of this study was to investigate the effects of a medical plant mixture and a probiotic on performance, antioxidant activity and weaning age of suckling Holstein calves. For this experiment, 30 newborn calves (0-10 days of age) with an average birth weight of 42 ± 8 kg were used in a factorial design (3×2) with 6 treatments and 5 replicates. Treatments were: 1) basal diet including a ca...
[ 3 ] - Determination of Nutritive Value of Poa trivialis Using in vitro Methods, Gas Production and Nylon Bag
This study was conducted to determine the chemical composition, metabolizable energy, digestibility and ability of gas production of Poa trivialis. Samples was collected at three phenological stages including: vegetative growth, flowering and seedling on two different elevations of 1300 to 1500 m and 2000 to 1800 m asl in Neor and Hir region as the first and second sites, respectively. Testing ...
[ 4 ] - The effect of rice husk as an insoluble dietary fiber source on intestinal morphology and Lactobacilli and Escherichia coli populations in broilers
Background: There are some reports on the positive effectsof dietary insoluble fiber on the performance of broilers. Objectives: This study was carried out to determine theeffect of inclusion rate and particle size of rice husk in the diet of broilerson the ileal and cecal bacteria populations and small intestine morphology. Methods: The experimental diets consisted of a control husk-free diet...
[ 5 ] - تعیین ارزش غذایی و تجزیهپذیری ماده خشک و دیواره سلولی گونه Astragalus crenatus طی مراحل مختلف فنولوژیکی درمراتع هیر- نئور استان اردبیل
(Astragalus crenatus Schult.(رشد رویشی، گلدهی و بذردهی) انجام شد. پس از آماده ای نیز بهروش آزمایشگاهی و با استفاده از دو رأس گوسفند نر نژاد مغانی دارای فیستوله شکمبهای تعیین شد. نتایج نشان داد از لحاظ قابلیت هضم و تجزیهپذیری ماده خشک، ماده آلی، دیواره سلولی و دیواره سلولی منهای همیسلولز سایت ارتفاعی دوم بهطور معنیداری بیشتر از سایت یک بود (01/0p<). نتایج نشان داد در هر دو سایت، مرحله ...
[ 6 ] - اثر سطح مصرف و اندازه ذرات پوسته جو بر مورفولوژی و جمعیت باکتریایی روده جوجه های گوشتی
زمینه مطالعه: فیبر نامحلول موجود در خوراک طیور اغلب به عنوان عاملی نامطلوب در نظر گرفته می‌شود که ارزش غذایی جیره را کاهش می‌دهد، اما شواهدی نیز در دست است که این نوع فیبر باعث بهبود صفات تولیدی می‌شود. هدف: پوسته خارجی جو از نظر اثر بر عملکرد تولیدی جوجه گوشتی مورد بررسی قرار گرفت. روش کار: در این آزمایش از 200 قطعه جوجه گوشتی از سویه راس 308 در قالب یک طرح کاملاً تصادفى با 5 تیمار و 4 تکرار اس...
[ 7 ] - تأثیر منابع سلنیوم و دانه کتان در جیره بر عملکرد و برخی متابولیت‌های بیوشیمیایی خون در مرغ‌های تخمگذار
اثر منابع سلنیوم و دانه کتان بر عملکرد و برخی فراسنجه های بیوشیمیایی خون با استفاده از 384 قطعه مرغ تخمگذار های‌لاین (50 هفتگی) در یک آزمایش فاکتوریل 4×3 با سه سطح دانه کتان(صفر، پنج و 10 درصد) و چهار نوع مکمل سلنیوم (فاقد مکمل، سلنیت سدیم، مخمر سلنیومی‌و سلنوهیدروکسی متیونین( سلیسئوSelisseo) در قالب طرح کاملاً تصادفی با چهار تکرار و هشت پرنده در هر تکرار بررسی شد. سلنیوم‌به میزان یک میلی‌گرم در...
[ 8 ] - اثر سطح مصرف و اندازه ذرات پوسته جو بر عملکرد رشد و قابلیت هضم مواد مغذی و هزینه تولید جوجه گوشتی
در این آزمایش از 200 قطعه جوجه گوشتی از سویه راس 308 در قالب طرح کاملاً تصادفى با پنج تیمار و چهار تکرار استفاده شد. انرژی متابولیسمی حقیقی پوسته جو با استفاده از خروسهای بالغ سسکتومی شده اندازه گیری شد. میزان ماده خشک، انرژی متابولیسمی حقیقی، خاکستر، عصاره اتری، پروتئین خام، فیبر خام، NDF، ADF، کلسیم و کل فسفر در پوسته جو به ترتیب برابر با 92 درصد، 978 کیلوکالری در کیلوگرم، 53/3 درصد، 26/4 درصد...
[ 9 ] - اثر تزریق داخل تخم مرغی عصاره چای سبز و هیدروکلراید فدرازول بر تغییر جنسیت و ساختار ماهیچه ای جوجه های گوشتی
In the present study 252 fertile eggs from Ross 308 strin broiler breeders flock were divided into three experimental group and at 5th day of incubation period were in ovo injected into the air cell by 0.1 ml of green tea extract, fadrozole hydrochloride or distilled water. The hatched chickens then were arranged based on the experimental groups of incubation period in a completely randomized d...
[ 10 ] - تتاثیر تزریق داخل تخم مرغی نانو ذرات اکسید روی بر درصد جوجه درآوری، عملکرد رشد و خصوصیات لاشه جوجه های گوشتی سویه راس 308
The aim of this study was to determine effect of in ovo injection of nanoparticles of zinc oxide on hatching, growth performance and carcass yield of broiler chicks after hatching. In total, 324 fresh hatching eggs were randomly distributed into six treatment groups of 54 eggs per treatment with three replicates of 18 eggs each, and injections were performed on day 15 of incubation. The treatme...
[ 11 ] - بررسی اثرات تزریق داخل تخم مرغی عصاره بره موم بر عملکرد رشد و وضعیت سیستم ایمنی جوجه های گوشتی
The purpose of this study was to determine the effects of in-ovo injection of oil-extracted propolis on the growth performance and immune status of broiler chicks (Ross 308) after hatching. A total of 324 fresh hatching eggs were randomly distributed into six treatment groups of 54 eggs per treatment with three replicates of 18 eggs each. Treatments included sham as negative control (without in...
[ 12 ] - The effect of Resistant Starch and pistachio hull phenolic extract feeding on feed intake, performance, Hematological and blood parameters of suckling Holstein calf
The present study was performed to determine the effect of resistant starch as a type of prebiotic and phenolic compound extract on performance, hematological and blood parameters of suckling Holstein calf. For this, 54 suckling Holstein calves (27 male and 27 female) were randomly assigned in 9 treatments including: RS1 (8 g resistant starch), RS2 (16 g resistant starch), PE1 (1800 mg phenolic...
[ 13 ] - Correlation Effects of Nano Selenium and Conjugated Linoleic Acid on the Performance, Lipid Metabolism and Immune System of Male Moghani Lambs
This study was carried out to evaluate the effects of nano selenium (nano-Se) and conjugated linoleic acid (CLA) on performance, biometric and blood parametersand selenoprotein W1 (SEPW1) and lipid gene expression in male Moghani lambs. Thirty male Moghani lambs, 3-months-old and weighing 30 ± 0.25 kg, were used in completely randomized design in a 2 × 3 factorial arrangement with dietary suppl...
[ 14 ] - Effect of in ovo Injection of Nicotonic Acid, Pantothenic Acid or Folic Acid on Immune System and Growth of Broiler Chickens
BACKGROUND: In ovo injection of nutrients as an early feeding method in birds directly supplies the nu- trients to the developing embryo. OBJECTIVES: This study was designed to evaluate the effects of in ovo injection of nicotonic acid, panto- thenic acid and folic acid on the performance and immune system of broilers. METHODS: </st...
[ 15 ] - Nutritional value of feed consumed by buffaloes under stable conditions and grazing from the rangelands of the main habitats of buffalo breeding in different climate zones of Ardabil province
Background and objectives: Regular preparation of good quality forage and proper diet leads to cost-effective production of milk and meat. In Iran, insufficient supply and insufficient access to forage, as well as unbalanced consumption diets are the main limitations that negatively affect the ability to produce buffalo and therefore lead to uneconomical breeding of this animal. To overcome the...
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