Akbar Taghizadeh

University of Tabriz · Department of Animal Science

The increase in global temperatures over the past few decades due to greenhouse gas emissions has raised concerns and necessitated further research in climate change mitigation and adaptation. Methane is a prominent greenhouse gas that significantly contributes to climate change, with a substantial amount generated through fermentation processes oc...

Sheep breeding is one of the most important economic activities in Ahar City, Iran. However, due to traditional production techniques, livestock farmers face the problem of low productivity. To address this issue, traditional breeds can be replaced with improved and high-yielding ones; in the first stage, this requires the acceptance of these new s...

Unconventional feed contains anti-nutritional factors and toxins. Still, microbial fermentation can effectively mitigate these issues, leading to enhanced nutrient composition in the feed. This process can stimulate animal appetites and ultimately result in substantial improvements in intestinal health and growth performance. Researchers have found...

Agrifood by-products contain nutrients and bioactive compounds that can be used in the diets of livestock – thereby value-adding to an otherwise waste product of environmental and economic significance. This study investigated the effect of dietary pomegranate pulp in the total mixed ration of Ghezel lambs, evaluating its effect on growth performan...

Context Leucine (Leu) is one of the branched-chain amino acids that is necessary for muscle protein synthesis. Basically, poultry feed ingredients contain abundant amounts of Leu. But little is known about dietary Leu deficiency in performance and health-attributing parameters of female broiler chickens, which may occur in crude protein-restricted...

Using nylon bag techniques, Cornell net carbohydrates and protein systems (CNCPS), and scanning electron microscopy, the authors examined the digestibility and structure of Vicia ervilia (ervil, bitter vetch) after steam flaking, roasting, and microwave processing. During the in situ technique, the samples were incubated at 0, 2, 4, 6, 8, 12, 16, 2...

Over the past few years, air and surface water pollution with nitrogen from agro-industrial waste has become a global environmental concern. Generally, these discards have nutritional value and could be utilised inexpensively for various purposes. The study involved two different phases: 1) production of lactosylurea from agro-industrial by-product...

Palatability is the sum of the factors that make a plant have a higher preferential value compared to other plants. In order to determine the palatability of alfalfa cuts, Short Term Intake Rate (STIR) method was used. Three wetheres (49±2.6 kg) were used in this method. The palatabilities of alfalfa in first, second and third cut were 7.63, 8.13 a...

Methane is the main greenhouse gas (GHG) emitted by ruminants. Mitigation strategies are required to alleviate this negative environmental impact while maintaining productivity and ruminants' health. To date, numerous methane mitigation strategies have been investigated, reported and suggested by scientists to the livestock industry. In this review...

In recent years, researchers from various fields have tried to use them because of the increasing growth of nanotechnology. Technological applications in animal health have been a significant problem. However, it has overturned into a recent enabling technique over the years, with the vast possibility of transformation, and has potentially develope...

This experiment aimed to investigate the effects of inulin supplementation on milk production and composition, feed intake, nutrient digestibility and rumen fermentation parameters in lactating ewes. The experimental treatments were (1) control group (basal diet), (2) basal diet plus 2% inulin (w/w) and (3) basal diet plus 4% inulin (w/w). The expe...

Remaining agricultural and food waste in the environment without use can cause environmental pollution. However, some of these agricultural wastes can be identified and used as feedstuff in ruminants, which in addition to preventing environmental pollution can reduce the cost of animal feed. The present study was performed to evaluate the nutrition...

Agro-industrial by-products (AIBPs) could potentially be sustainable feedstuff, yet these materials’ practicability shall be studied for their proper application by the livestock sector. The purpose of the current study was to determine the nutritional values and degradability kinetics of orange pulp silage pre-processed with different urea levels...

Modifying the chemical composition of a diet can be a good strategy for reducing methane emission in the rumen. However, this strategy can have adverse effects on the ruminal microbial flora. The aim of our study was to reduce methane without disturbing ruminal function by stimulating the growth and propagation of methanotrophs. In this study, we r...

Aim of study: To evaluate the effect of different feeding levels on body weight changes, sexual behavior activities, and spermatogenesis characteristics of testis tissue in immature Iranian breed lambs. Area of study: University of Tabriz, Iran. Material and methods: A total of 40 (start of experiment, 4; after 6 months, 12; 9 months, 12; sexual...

Ruminal fermentation of feed leads to methane production and wastes feed energy. Appropriate feed additives have shown to reduce ruminal methane production. Accordingly, it is important to identify compounds as feed additives to alter ruminal fermentation patterns to improve feed efficiency as well as reduce methane production. This experiment aime...

Introduction: Dried forage has long been used as a traditional method of storage of forage feedstuffs. However, the need to postpone forage harvest until maturity in order to obtain more dry matter reduces its digestibility. Adverse weather conditions can lead to loss of nutrients and overall decline in the nutritional value of dried fodder. One of...

This study was carried out to determine the effects of adding CuO and ZnO nanoparticles (at levels of 0, 10, and 20 mg of CuO and ZnO nanoparticles in mL rumen fluid) on in vitro gas and methane production of alfalfa (Medicago sativa) hay. Green-synthesized CuO and ZnO nanoparticles were characterized using scanning electron microscope (SEM), Fouri...

Nitrate may reduce the ruminal methane emission by competing methanogenesis to achieve more hydrogen. For this purpose, twenty Holstein lactating cows were examined using a 2×2 factorial design in 4 groups for 60 days with two forage levels (40% and 60%) and supplemental nitrate 0% (F40 and F60) and 3.5% (F40N and F60N) of diet dry matter (DM). The...

The experimental feedstuffs included soybean meal, whole cottonseed, corn seed, and alfalfa hay. The homemade microbial fuel cell (MFC) configuration consisted of two plexiglass cylinders (dual-chambered) for the MFC trial. According to obtained results, corn seed produced the highest in vitro gas in all the incubation times, and the differences we...

Ruminants are one of the largest anthropogenic methane and nitrous oxide emissions. Therefore, the hypothesis was to study the effects of reducing dietary crude protein (CP) level on environmental contaminators when rumen-protected amino acids and choline chloride were supplemented. Sixty Holstein dairy cows were used during the experiment. Test di...

Over the past decades, the agro-industrial by-products (AIBP) have received considerable attention. In this context, we aimed to investigate the effect of AIBP as a source of non-fiber carbohydrates on biogas production kinetic, methane emission, and fermentation characteristics. Experimental treatments were (1) sugar beet pulp (SBP) (control), (2)...

Determining the effect of natural inhibitors on sesame meal degradability by using in vitro three step method. Vet. arhiv 91, 513-521, 2021. ABSTrAcT The aim of this experiment was to investigate the beneficial effect of monensin, tannic acid and cinnamon essential oil addition on sesame meal degradability by the three-step in vitro method. The eff...

The issue of nitrogen efficiency has gained considerable popularity in recent years due to environmental concerns about nitrogen emissions and subsequent international regulations. In this regard, a study was conducted to compare the rate of nitrogen release from different sources of slow release urea in vitro. For this purpose, 3 coated products (...

Vermicompost processing can be used as a suitable and efficient technology in transforming waste raw materials into valuable products. The aim of the present study was to investigate the effects of vermicompost protein supplementation on functional characteristics and some blood and ruminal parameters in Holstein bull calves. Sixteen Holstein male...

The objective of the study was to determine the effects of conjugated linoleic acid (CLA) supplement on milk yield and composition, blood metabolites and reproductive parameters in lactating Holstein dairy cows. Twenty Holstein dairy cows were randomly assigned to one of two dietary treatments: 1) supplementing 110 g per day of fat (control), 2) su...

The utilization of food processing discards would not only contribute towards waste reduction and feed security but also would reduce costs associated with the feedstuff import. These byproducts have been repetitively shown to stimulate animals’ performance while being beneficial to the overall health of animals. The purpose of present study was to...

In the recent decades, air and surface water pollution by nitrogen from agro-industrial discards has become a global environmental concern. Generally, these byproducts and or discards are nutrient rich and could inexpensively be utilized for various purposes marginally helping with mitigation strategies. In this context, our study was conducted in...

The bioprinting technique with specialized tissue production allows the study of biological, physiological, and behavioral changes of cancerous and non-cancerous tissues in response to pharmacological compounds in personalized medicine. To this end, to evaluate the efficacy of anticancer drugs before entering the clinical setting, tissue engineered...

Introduction: Forage drying has long been used as a traditional method of storage of forage feedstuffs. However, the need to postpone forage harvest until maturity in order to obtain more dry matter reduces its digestibility. Also, adverse weather conditions can lead to loss of nutrients and overall decline in the nutritional value of dried fodder....

The effect of using black and green tea waste extracts on the diet nutritional value was investigated with three methods of in vitro degradability, gas production, and McNiven's enzymatic digestion in the present experiment. Total phenolic compounds and total tannin for green tea extract were 20.3% and 14.8% of dry matter (DM), respectively, and fo...

Over the past decades, the agro-industrial by-products (AIBP) has received considerable attention. With this motivation, the aim of this study was to investigate the effect of AIBP as a source of non-fiber carbohydrates on biogas production kinetic, methane emission and fermentation characteristics. Experimental treatments were (1) Sugar beet pulp...

Cultivation of globe artichoke (Cynara cardunculus var. scolymus L.), as a multipurpose species of vegetable, medicine and green forage, along with using biological fertilizers and reduced rates of chemical fertilizers is arranged within sustainable cropping systems. In order to study the effects of chemical and biological fertilizers and integrate...

Due to concern about antibacterial substances in animal nutrition; bioactive components such as lactoferrin and probiotic with health effects, can be used in some species that are more sensitive to pathogens. Thirty six suckling male Ghezel lambs in a completely randomized design employing a 2 × 3 factorial arrangement were used to study the effect...

The rapid outbreak of coronavirus disease 2019 (COVID-19) around the world is a tragic and shocking event that demonstrates the unpreparedness of humans to develop quick diagnostic platforms for novel infectious diseases. In fact, statistical reports of diagnostic tools show that their accuracy, specificity and sensitivity in the detection of COVID...

The purpose of this study was to investigate the effects of supplementing feed restricted diet with propylene glycol, monensin sodium and rumen-protected choline chloride on blood metabolic status, body condition score (BCS) and body weight of ewes in late pregnancy. At the final six weeks of pregnancy, 48 pregnant Ghezel ewes (body weight 65.53 ±...

This study was designed to investigate the effect of three heating methods on the ruminal and post‐ruminal nutrient degradability and starch granule morphology of barley grain (BG ‐ Hordeum vulgare). Treatments were Control (CG): without processing; Roasted (RG): roasted BG for 300 s at 130°C; Microwaved (MG): irradiated BG for 120 s at 1200 W; and...

Nanobiosensors have played a key role as portable devices in the rapid breast cancer diagnosis and in clinical medicine like point-of-care devices. However, understanding biomarkers and nanomaterials is crucial for improving the performance of nanobiosensors for all stages of different diseases or treatment. Therefore, this study not only investiga...

Abstract Background & Objective: Considering the consequences of chemical fertilizers misuse and the positive effect of the biofertilizers application from economic and environmental aspects, this research was conducted to investigate the effect of these fertilizers on morphological traits, yield and quality of artichoke forage at the flowering sta...

This study evaluated the effects of Lactobacillus buchneri (LAB) and orange pulp (OP) supplementation on chemical composition, in vitro and in situ degradability, dry matter (DM), pH and aerobic stability of alfalfa silage. Treatments were 1) alfalfa without any additive (control), 2) alfalfa + OP (70% alfalfa mixed with 30% fresh OP, LAB0), 3) tre...

Development of optical nanobiosensors is one of the important priorities especially in the field of biomedical diagnostics science and technology. The application of nanobiosensors has been accelerated with the introduction of plasmonic NPs, which overcome the most of the limitations in the case of conventional optical nanobiosensors. Since the pla...

Maternal undernutrition during pregnancy impairs offspring behaviours and thereby their survival rate indirectly by decreasing lamb birth weight or by deteriorating milk production which in turn limits bonding of the dam with the neonate. This study was aimed to investigate the effect of maternal feed restriction during late pregnancy on performanc...

This study was conducted to evaluate the effects of different sources of zinc (Zn) on feed intake, milk yield, milk composition, and blood metabolites. Twenty-four dairy cows were randomly allocated to one of four treatments in a randomized complete block design. The treatments consisted of i) control diet (no zinc supplementation), ii) zinc oxide...

The current study was conducted in three different parts as three experiments. In the first section of this research, the organic and nano forms of selenium element were combined and enriched with selected Lactobacillus strains (casei, reuteri , acidophilus and plantarum) as probiotic in different ways. After loading Nano-Se on specific culture med...

The effects of dietary supplementation of HMBi, alone or in combination with B vitamins were investigated on fermentation characteristics and in vitro ruminal and post-ruminal digestion using three modified techniques. A total-mixed ration was formulated using the assumptive animal information by CPM-Dairy software and used as a substrate. Eight di...

Escherichia coli (E.coli) is the most important species that causes dysentery. Present study was conducted to investigate the synergistic antimicrobial effects of Nano-selenium and lactobacillus on E.coli to suggest anti-diarrhea bio-drug. The antimicrobial effects of experimental treatments against E.coli were evaluated by disk diffusion and well...

An experiment was carried out to investigate the effect of multi-enzyme in high and low levels of metabolizable energy (13.81 and 11.51 MJ kg-1 diet) on performance and energy utilization of broilers fed wheat-soybean meal diets from 0 to 21 days of age. Result showed that birds fed diets containing 11.51 MJ kg-1 consumed significantly (p < 0.05) m...

Cropping systems of safflower (Carthamus tinctorius L.) with faba bean (Vicia faba L.) under different fertility were compared with sole cropping of each crop during 2015 and 2016 at the Research Farm of Tabriz University in Iran. The treatments were cropping systems (safflower and faba bean sole croppings, intercropping systems of safflower and fa...

Introduction Artichoke (Cynara scolymus L.) (Asteraceae) is a herbaceous perennial plant of Mediterranean origin, North Africa, Canary Isles and Southern Europe. Nowadays, artichoke is cultivated in many parts of the world, such as the United States, mainly in California, in South America (Argentina, Chile, Peru), North Africa, Near East (Turkey an...

BACKGROUND Dietary fats, fed to ruminant animals, have been observed to improve reproductive function. Sunflower oil is one of the richest sources of polyunsaturated fatty acids (PUFAs), over 60% of which is linoleic acid (C18:2). With regard to recommendations for increased consumption of PUFAs, special emphasis has been given to the importance of...

Background and Objectives: One of the most important factors in pathogenic disease is the attachment of pathogenic bacteria to the host cell surface. The present study was conducted to introduce an alternative bio-drug that prevents the attachment of microorganisms and the onset of disease. Subjects and Methods: This study was carried out during th...

Background and Aims: Candidiasis is a fungal infection caused by Candida albicans. Uncontrolled use of antibiotics has resulted in drug resistance. This study has been conducted to find a suitable alternative for these drugs. Materials and Methods: Primarily, standard and clinical isolates of C.albicans were collected. In order to indentify clinica...

کشت مخلوط و کاربرد کودهای زیستی از راهکارهای مهم کشاورزی پایدار در جهت کاهش خطر تخریب منابع محیطی و بهبود تولید محصولات زراعی هستند. بر این اساس، به منظور بررسی اثر کودهای شیمیایی و زیستی بر کشت مخلوط گلرنگ و باقلا، آزمایشی به صورت فاکتوریل در قالب طرح بلوکهای کامل تصادفی با سه تکرار در دو سال زراعی 7374 و 7375در مزرعه تحقیقاتی دانشکده کشاورزی دانش...

Abstract Intercropping and biofertilizer application are the important strategies for reducing the risks of agricultural production and enhancing crop yield and quality in developing sustainable agriculture. In order to evaluate the effect of chemical and biofertilizers in safflower/faba bean intercropping, two field experiments were carried out ba...

This study was conducted to investigate the effect of different levels of calcium salts of fatty acids (CSFA) on performance in Holstein calves. A total of sixteen 17 month of age male Holstein calves with average of (540 ± 5 Kg) weight were selected and were divided into four groups in order to the experimental complete randomized block design. Th...

Intercropping and biofertilizer are thought to be strategies for reducing the risks of agricultural production and enhancing yield and quality in developing sustainable agriculture. Hence, two field experiments were carried out with factorial arrangement based on a randomized complete block design with three replications, to evaluate the effects of...

The objective of this study was to specify the effects of centrifugation and different surface of soybean lecithin-based extender on post-thaw Sperm quality of Ghezel ram semen. Semen samples were gathered from 5 mature Ghezel ram two/week for 3 weeks. After initial evaluation, the approved semen samples were pooled together and split into equal pa...

کشت مخلوط و کاربرد کودهای زیستی از راهکارهای مهم کشاورزی پایدار در جهت کاهش خطر تخریب منابع محیطی و بهبود تولید وعملکرد محصولات زراعی هستند. بر اين اساس، به منظور مطالعه اثر کاربرد کودهاي شيميايي و زيستي بر کشت مخلوط گلرنگ و باقلا آزمايشي به صورت فاکتوريل در قالب طرح بلوک هاي کامل تصادفي با سه تکرار در دو سال زراعي 1394 و 1395 در مزرعه تحقيقاتي دان...

The present study was conducted to evaluate the effect of nitrate supplementation on dry-matter (DM) degradation and ruminal fermentation parameters by using in vitro gas production and in situ technique. In vitro gas production and in situ DM degradation in the presence or absence of nitrate were recorded at all incubation times. At all incubation...

This study was conducted to study the effects of supplementation alfalfa silage with orange pulp and difference of Lactobacillus buchneri on in vitro dry matter digestibility and gas production. wilted alfalfa with no additive (control), wilted Alfalfa and orange pulp (1750 g wilted Alfalfa mixed with 750 g fresh orange pulp) treated with LAB for f...

In Iran, East Azerbaijan province is one of the most important farm animal production area and feedstuffs such as wheat grain (WG) and wheat bran (WB) together with alfalfa hay, barley grain, and wheat straw are the most common ingredients of animal rations. In recent years, production of WG and its main by-product, WB, have considerably been incre...

This study was conducted to assayed the effects of Lactobacillus buchneri inoculants on laboratory characteristics of wilted alfalfa and orange pulp silage. Experimental treatments were wilted alfalfa without additive (control), wilted Alfalfa and orange pulp treated with LAB for final application rates of 0, 1.5×108, 3.0×108, 4.5×108 cfu/g of wilt...

This study was conducted to investigate the effects of adding commercial Lalsil (Lactobacillus Buchneri) on the in vitro degradation of wilted Alfalfa and orange pulp Silage. Experimental treatments were wilted alfalfa with no additive (control), wilted Alfalfa and orange pulp (1750 g wilted Alfalfa mixed with 750 g fresh orange pulp) treated with...

The objective of the present study was to evaluate the effect of replacing corn with orange pulp (OP) on growth performance, rumen fermentation, nutrient digestibility and blood parameters of fattening lambs. Twenty male lambs were placed in individual pens and fed with four levels of replacement of corn by OP (0, 33, 66, 100%) during 60 days. Aver...

This study was conducted to study the effects of LALSIL inoculants (Lactobacillus Buchneri 40788: LAB) on laboratory characteristics and aerobic stability in alfalfa wilted and chopped into 2 cm of average length with orange pulp silage. Experimental treatments were 1: wilted alfalfa with no additive (control), 2: wilted alfalfa and orange pulp (at...

The effects of supplementing ewe diets with either DL-methionine (DL-Met) or 2-hydroxy-4 (methylthio) butanoic acid isopropyl ester (HMBi) were investigated on ruminal in situ degradability of grain and forage diets, in vivo digestibility, rumen fermentation, blood metabolites and antioxidant status. Six ruminally cannulated ewes were used in a rep...

In order to evaluate the effect of different nutritional treatments on forage yield and some qualitative traits of artichoke (Cynara scolymus L.), an experiment was conducted as factorial experiment on the basis of RCBD design with three replications in Isfahan Agriculture and Natural Resources Research Station, Iran during 2014. The first factor c...

The introduction for the livestock and poultry industry in Iran

The current study was carried out to examine the effect of inoculants, enzymes and mixtures of them on the fermentation, degradability and nutrient value of orange pulp silage. Orange pulp was treated with water (control), inoculant (Lactobacillus plantarum), enzymes (multiple enzyme) or inoculants + enzymes prior to ensiling (denoted C, I, E and I...

BACKGROUND: Ram semen has proven to be more difficult to cryopreserve than semen of other farm animals. Cryopreservation, adversely the cryosurvive of spermatozoa, leads to reduction of sperms fertile life. OBJECTIVES: The aim of this study was to investigate the effect of supplementation of diluent with different raffinose concentrations in the cr...