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Volume 14 (2); June 25, 2024
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Research Paper
Isolation and Molecular Identification of Candida albicans from the Oral cavity of Domestic Chickens using 28S rDNA in Diyala Governorate, Iraq
Kadhim MA, Abdulameer SJ, Al-Dulaimi OGJ, Al-Azzawi AK.
J. World Poult. Res. 14(2): 124-131, 2024; pii: S2322455X2400012-14
DOI: https://dx.doi.org/10.36380/jwpr.2024.12
ABSTRACT: Candida albicans (C. albicans) is an opportunistic fungal pathogen that affects humans, animals, and birds. It is one of the most prevalent microbes found in clinical specimens. Candidiasis refers to endogenous fungal overgrowth under conditions of microbiota disruption or other host impairments. The study aimed to detect and isolate C. albicans based on morphological, cultural, and biochemical analysis. The present study examined 36 oral cavity samples from domestic chickens suspected of having candidiasis across various regions of Diyala Governorate in Iraq from September to November 2023. A total of twenty C. albicans were isolated from collected samples. PCR amplification of the 28S rDNA fungal gene, yielding the expected 260bp products, confirmed the identification of the yeasts. Using the Vitek 2 automated system, minimum inhibitory concentrations (MICs) for 6 common antifungal drugs were determined to test the antifungal susceptibility of a Candida clinical isolate. No resistance was found to Amphotericin B, Fluconazole, Flucytosine, Voriconazole, Caspofungin, or Micafungin in isolates from the oral cavity. In conclusion, the current study identified twenty C. albicans strains from chicken oral cavities and found them to be susceptible to all major classes of antifungals, indicating a lack of antifungal resistance in these isolates.
Keywords: Candida albican, demostic chicken, Vitek 2, 28S rDNA.
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Effects of Maize, Millet, and Sorghum as Energy Sources of Diet on Growth Performance of Guinea Fowl |
Research Paper
Effects of Maize, Millet, and Sorghum as Energy Sources of Diet on Growth Performance of Guinea Fowl
Brah N, Chaibou I, Hassan OM, Daka ARS.
J. World Poult. Res. 14(2): 132-137, 2024; pii: S2322455X2400013-14
DOI: https://dx.doi.org/10.36380/jwpr.2024.13
ABSTRACT: Guinea fowls are more valuable in the market in Niger than chickens; however, their ability to meet consumer demands is limited by low productivity. Therefore, suitable nutrition is an important factor for this productivity. The current study aimed to evaluate the growth performance of guinea fowl using maize, millet, and sorghum as energy sources in the diet. A total of 108 one-day-old unsexed local keets, with an average live weight of 25.5 ± 0.83 g were randomly distributed among three dietary treatments with four replicates per treatment. The keets were reared on the ground with litter at CERRA Maradi, Niger, for an 8-week experimental period, involving 36 keets per treatment and 9 keets per replication. The parameters monitored were feed intake (FI), live weight (LW), average daily gain (ADG), and feed conversion ratio (FCR). After 8 weeks of experimentation, the results indicated that the cereal used in the diet had no statistically significant effect on the keets’ FI. Those fed millet-based diets had higher LW, compared to those fed maize and sorghum diets, respectively, however, this difference was not statistically significant. Millet also facilitated a higher ADG, compared to maize and sorghum, although the differences were statistically insignificant. The keets fed sorghum-based had higher FCR, compared to the FCR of the guinea fowls fed maize and millet diet. based on the growth performance assessed in this study, the recommended order for cereals in guinea fowl feed to ensure better growth is millet, followed by maize, and then sorghum.
Keywords: Cereals, Energy source, Growth performance, Keets
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Research Paper
Control of Field Infectious Bronchitis Virus Genotype GI-23 (Variant 2) Using Combined Heterologous Vaccine Genotype Strains GI-13 (1/96) and GI-1 (H120)
Enache M, Pirvulet M, Garcia GG, Lecoupeur M, Cotta H and Koutoulis K.
J. World Poult. Res. 14(2): 138-145, 2024; pii: S2322455X2400014-14
DOI: https://dx.doi.org/10.36380/jwpr.2024.14
ABSTRACT: Infectious bronchitis (IB) is a disease with significant economic impacts both on the costs of control strategies and on productive losses. Various vaccination protocols are applied, depending on homologous or heterologous protection against IB and finding the optimal balance between costs and benefits as a choice by a responsible veterinarian. The current case study aimed to demonstrate the efficacy of a heterologous vaccine combination against field IBV GI-23 (Variant 2) infection when vaccination quality was properly monitored. Two groups, each consisting of six flocks, were examined before and after improving the quality of IB vaccine application in the hatchery. These groups were vaccinated with H-120 and 1/96 vaccine strains for heterologous protection. The study involved field visits, necropsies, serology via ELISA, and oropharyngeal sampling for RT-PCR follow-up activities. Moreover, performance parameters including average body weight, feed conversion ratio, and 7 days plus total mortality were analyzed at the end of the production cycle at 40-45 days of age. Results indicated that the group with enhanced vaccination quality in the hatchery exhibited a significant decrease in IBV titers and an absence of IBV GI-23 field infection. Additionally, there was an improvement in performance data in terms of average body weight, FCR and total mortality. Hatchery vaccination proved to be more controllable and practical compared to traditional on-farm vaccination, ensuring better control of the vaccination process and massive coverage of the farm population.
Keywords: Heterologous protection, Infectious bronchitis, Vaccine strain 1/96, Variant 2
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Research Paper
Effects of Dried khat (Catha edulis) Leaves as a Natural Feed Additive on the White Leghorn Layers’ Performance
Asfaw AG, Abebe MG, Senbeta EK, and Mulatu K.
J. World Poult. Res. 14(2): 146-153, 2024; pii: S2322455X2400015-14
DOI: https://dx.doi.org/10.36380/jwpr.2024.15
ABSTRACT: Khat contains many bioactive compounds that are beneficial for chickens’ health. Most of the chemical constituents found in Khat are biologically active and are used worldwide for the treatment of many diseases. However, there are few studies on the use of Khat in poultry as a nutrition, antioxidant, and antimicrobial activity. Therefore, the present study evaluated the effects of dried Khat leave (DKL) as a natural feed additive on the White Leghorn layer's performance, serum chemistry, and hematology. A total of 180 White Leghorn chickens, aged 168 days were randomly divided into four groups consisting of 45 chickens in three replications. Thirteen layers and two cocks were assigned to each replication and reared on a deep litter system. The diets of layers in T1, T2, T3, and T4 were supplemented by DKL at proportion of 0%, 0.2%, 0.4%, and 0.6%, respectively. The layers were evaluated for feed intake, body weight gain, egg production, feed conversion ratio, and some blood parameters, such as total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, albumin, globulin, red blood cells, hemoglobin, packed cells volume, white blood cells, and total protein. Feed intake in T1 (103.5 g) was significantly higher than T4 (98.5 g) and T3 (98.9 g). Layers in T1 significantly gained higher body weight than layers in other treatments. The use of DKL in layer chickens’ diet did not affect egg production, egg mass, and feed conversion ratio. An increase in the level of DKL in the layers diet significantly reduced the serum high-density lipoprotein, cholesterol, and albumin. The present study showed that chickens that received a higher proportion of dried khat leaf (0.6%) significantly recorded lower levels of low-density lipoprotein and total cholesterol in their blood.
Keywords: Blood analysis, Dried Khat leaf, Layer, White Leghorn
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Research Paper
Association of Different Body Sizes and Egg Quality Characteristics in White Leghorn Chicken Breed of South Africa
Tyasi TL, Sathekge LJ, and Hlokoe VR.
J. World Poult. Res. 14(2): 154-159, 2024; pii: S2322455X2400016-14
DOI: https://dx.doi.org/10.36380/jwpr.2024.16
ABSTRACT: Egg quality could influence the price of the table and hatching eggs. However, the effects of hen’s live body weight on egg characteristics are poorly understood. The present study evaluated the influence of body weight (BW) on egg characteristics, such as egg width (EWD), shell weight (SW), egg length (EL), albumen weight (AW), yolk weight (YW), shell surface index (SI), albumen ratio (AR), shell ratio (SR), and yolk ratio (YR) of White Leghorn chicken. A total of 100 White Leghorn chickens at 30 weeks of age were used in the current study of which 300 eggs were collected. Live body weight was classified into three groups namely, small (≤ 195g), medium (196-220g), and large (≥ 221g). The results revealed that the White Leghorn layer’s live body weight was positively influenced by the eggshell index and egg length. Additionally, the results indicated that body weight did not affect EW, SW, EWD, SR, YW, AW, AR, and YR. In conclusion, the live body weight influences egg length and shell index in the White Leghorn chicken breed.
Keywords: Chicken, Egg length, Egg weight, Egg width, Shell index
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Research Paper
The Safety Evaluation of Novel Bio-based Calcium D-pantothenate Obtained from Recombinant Escherichia coli K12 on Growth Performance and Health Status of Broiler Chickens
Liu G, Xu X, Zhang L, Li C, Li M, Zhang H.
J. World Poult. Res. 14(2): 160-171, 2024; pii: S2322455X2400017-14
DOI: https://dx.doi.org/10.36380/jwpr.2024.17
ABSTRACT: The production of traditional synthesized calcium D-pantothenate (D-PA) is accompanied with chemical pollution, therefore, the eco-friendly bio-fermentation technology has received widespread attention. In order to verify the safety of a novel D-PA product produced by genetically engineered bacteria (Escherichia coli K12), the authors of the current study investigated the influence of adding D-PA to the diet on growth performance and health status of broiler chickens. A total of 192 day-old healthy Arbor Acres broiler chickens with similar weight (43.21 ± 0.12 g) were randomly divided into 4 treatments with 6 replicates and 8 broiler chickens in each replicate (male and female in half). The Escherichia coli K12 was genetically engineered for the production of D-PA. The control group was fed with the basal diet containing 20 mg/kg synthesized D-PA (CT group). The treatments were supplemented with 20 (TCaP1 group, recommended dose group), 100 (TCaP5 group, 5-fold-dose group), and 200 (TCaP10 group, 10-fold-dose group) mg/kg bio-based D-PA product, respectively. The experiment lasted for 42 days and the growth performance and health status of broiler chickens were determined. The results indicated that the addition of 5- and 10-fold doses of bio-based D-PA could increase the average daily weight gain during 22-42 days of age and decrease the feed conversion rate during 22-42 and 1-42 days of age of broilers. There were some differences in white blood cell count, intermediate cell absolute value (MID) count, absolute granulocyte count, absolute lymphocyte count, granulocyte percentage, mean corpuscular volume, red blood cell distribution width-standard deviation, mean platelet volume and serum phosphorus and total bilirubin in different groups, compared with the CT group. Histological observations of the liver, spleen, pancreas, and small intestines showed that the tissue structures of various organs of the broiler chickens fed with the bio-based D-PA were clear, and no abnormal changes such as inflammatory cell infiltration and fibrous tissue hyperplasia were observed in all groups. In summary, dietary supplementation of bio-based D-PA was safe within the 10-fold- dose (200mg/kg) to broiler chickens during 1-42 days.
Keywords: Biological safety evaluation, Broiler chicken, Calcium D-pantothenate, Growth performance, Vitamin B5
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Effects of Breeding Systems on Hen Egg Weight: A Meta-Analysis |
Research Paper
Effects of Breeding Systems on Hen Egg Weight: A Meta-Analysis
Tyasi TL and Sako T.
J. World Poult. Res. 14(2): 172-180, 2024; pii: S2322455X2400018-14
DOI: https://dx.doi.org/10.36380/jwpr.2024.18
ABSTRACT: In the egg production industry, egg weight is a critical parameter influencing economic viability. The objective of the present study was to determine the effect of cage, free-range, and deep litter breeding systems on hen egg weight using meta-analysis. Articles were searched using Google Scholar, PubMed, ScienceDirect, and Web of Science yielding 175 articles of which 22 articles were included in the present study. Methodological quality was assessed using Joanna Briggs Institute guidelines. A model was used to determine the effect of breeding systems on average hen egg weight. Meta-regression analysis was used to examine the effect of the following moderators, publication year, region, chicken age, and breed. The Cochran’s Q test and I2 statistic were performed for h heterogeneity across used studies. According to the obtained results, there was no significant difference between cage and free-range on average hen egg weight (standardized mean difference (SMD) = 0.08, I2 = 89%, 95%CI 0.19-0.34). The free-range breeding system had heavier hen egg weight than deep litter (SMD = 0.54, I2 = 88%, 95%CI 0.01-0.08). The findings also revealed that deep litter and free range had no significant difference in average hen egg weight (SMD = -0.05, I2 = 87%, 95%CI -0.28-0.17). Meta-regression findings showed that the origin of the used articles, the age of the chickens, and the chicken breed were observed as the main reasons for heterogeneity. This meta-analysis revealed that a free-range breeding system increased the average hen egg weight.
Keywords: Breeding system, Cage, Deep litter, Free-range, Meta-analysis
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Research Paper
Landmarks in Quail Coccidiosis Research with Special Scrutiny to the Available Egyptian Literature: A Review
ElBakrey RM, Helal SS, ElKholy AA, and Eid AAM.
J. World Poult. Res. 14(2): 181-195, 2024; pii: S2322455X2400019-14
DOI: https://dx.doi.org/10.36380/jwpr.2024.19
ABSTRACT: Quails are an important alternative to chicken production for protein sources, offering many advantages over other poultry species. However, raising quail faces certain challenges, such as a shortage of specified hatcheries and the lack of local markets for quail eggs and meat, particularly in Egypt. In addition, there is less interest in quail’s medication and vaccine production. A significant disease affecting the health and productivity of quails is coccidiosis, which is associated with poor feed conversion ratio, lower growth performance, heightened mortality, and high cost of vaccination and treatment. Attention to quail coccidiosis and its clinical forms, diagnosis, morphological characterization, control, and prevention is very critical for improving quail meat and egg production. This review compiles scientific data on quail coccidiosis, with a focus on literature from Egypt, for classification, data analysis, and processing.
Keywords: Anticoccidial, Coccidiosis, Eimeria, Egyptian, Morphology characterization, Quail
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Research Paper
Enterobacteriaceae Antibiotic Resistance Identification in Slender-billed Gull Species Migrating to Libya
Mansour A, Sharif E, Hamhoom A, Eldaghayes I, Etayeb Kh, Dayhum A and Kammon A.
J. World Poult. Res. 14(2): 196-203, 2024; pii: S2322455X2400020-14
DOI: https://dx.doi.org/10.36380/jwpr.2024.20
ABSTRACT: The Libyan coast has various types of wetlands that are passed by many migratory birds throughout the year, however, studies on bacterial isolation from these birds in Lybia are scarce. The present study aimed to isolate enteropathogenic bacterial species from the seagulls that migrated to the Libyan coast as well as identification of the antibiotics that are resistant to these bacteria. A total of 50 fresh fecal samples were collected from slender-billed gulls in January 2023 at Farwa Island near the city of Zuwara, in Western Libya. Bacteria were isolated by conventional culturing method, identified using the Enterosystem 18R, and antibiotic susceptibility tests were conducted on the isolated bacteria. The results revealed the isolation of 46 bacteria, but only 32 of them were identified using biochemical tests. These identified bacteria belong to six species of Enterobacteriacae, namely Citrobacter (C.) freundii, Pantoea (P.) agglomerans, Escherichia (E.) coli, Enterobacter (En.) cloacae, Serratia liquifaciens, and Proteus mirabilis, with percentages of 53.125%, 31.25%, 6.25%, 3.125%, 3.125%, and 3.125%, respectively. All isolated bacteria were 100% sensitive to gentamicin (10 µg) and ciprofloxacin (5 µg). The highest resistance result was observed against the antibiotic cefoxitin (30 µg), with both C. freundii (5 samples) and P. agglomerans (4 samples). Resistance was observed in 5 samples of C. freundii and 4 samples of P. agglomerans out of 11 samples. Resistance to antibiotics, such as azithromycin (15 µg), ceftriaxone (30 µg), and ampicillin (10 µg), was also noted in a few isolates. The results indicated that C. freundii was the most antibiotic-resistant bacterial species isolated in this study. The highest multiple antibiotic resistance index was demonstrated by bacteria C. freundii, P. agglomerans, and En. cloacae, with a value of 0.33 for each of them. In conclusion, slender-billed gulls carry multi-drug-resistant bacteria. The study recommends the implementation of a national program to survey antibiotic-resistant bacteria, determine their prevalence, and assess the presence of antibiotic residues in animal-derived food. Furthermore, the present study advises expanding scientific studies on risk analysis, and antibiotic alternatives in migratory birds.
Keywords: Citrobacter freundii, Enterobacteriaceae, Multiple antibiotic resistance, Prevalence, Slender-billed gull
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Research Paper
Pharmacokinetic Characteristics of Diclazuril in Japanese Quails (Coturnix japonica) and Domestic Pigeons (Columba livia)
Elazab ST, Zafar I, and Elshater NS.
J. World Poult. Res. 14(2): 204-210, 2024; pii: S2322455X2400021-14
DOI: https://dx.doi.org/10.36380/jwpr.2024.21
ABSTRACT: Coccidiosis, caused by the protozoan Eimeria, is a significant disease in poultry farms worldwide, leading to substantial economic losses. Triazines, benzene-aceto-nitrile derivatives, are widely employed in the field of veterinary healthcare to combat the hazardous impacts of protozoan parasite infestation comprising coccidiosis. The current research was designed to investigate the pharmacokinetic profile of diclazuril, a member of triazines, in Japanese quails (Coturnix japonica) and domestic pigeons (Columba livia) following single oral administration at 0.3 mg/kg body weight. 78 Quails (male: female, 1:1, 7 weeks old) and 78 pigeons (male: female, 1:1, 4 weeks old) were randomly divided into 13 groups for each species (n=6 birds/ group). Plasma samples were obtained at various time intervals (at time 0 [preceding diclazuril administration], and 0.5, 1, 4, 8, 12, 24, 48, 72, 96, 120, 144, and 168 hours after diclazuril administration) to determine its concentration utilizing high-performance liquid chromatography (HPLC). The non-compartmental approach was applied to assess the pharmacokinetic parameters via the aid of WinNonlin 8.3 software. In quails and pigeons, the peak plasma concentrations were 5.35 and 9.14 μg/mL attained at 8 hours, respectively. Additionally, the elimination half-lives (T1/2λz) were 30.74 and 26.48 hours, and the area under the plasma concentration-time curve from time zero to the last sample (AUC0-last) values were 155.67 and 343.57 μg h/mL, respectively. The mean residence time was 30.71 hours in quails and 39.68 hours in pigeons. Diclazuril exhibited favorable pharmacokinetic characteristics after oral administration at a dose of 0.3 mg/kg in quails and pigeons. However, to adjust the dosage regimen for curing coccidiosis, a future study is warranted to determine the clinical efficacy against coccidia infection. Moreover, further investigation is needed to evaluate the tissue residues and calculate the withdrawal time of diclazuril in quails and pigeons.
Keywords: Diclazuril, High-performance liquid chromatography, Japanese quail, Pharmacokinetic, Pigeon
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Research Paper
Evaluation of Salmonella Enteritidis Isolated from Layer Hens and Murine Fecal Pellets in Poultry Farms of Libya
Benlashehr I, Elmasry K, Kammon A, Asheg A.
J. World Poult. Res. 14(2): 211-218, 2024; pii: S2322455X2400022-14
DOI: https://dx.doi.org/10.36380/jwpr.2024.22
ABSTRACT: The rodents play a significant role in the transmission of Salmonella between farms and regions. The present study aimed to compare the virulence of Salmonella enteritidis isolated from fecal samples of laying hens and murine within the same poultry house but different regions in Libya using Vivo-quantitative measurement of invasiveness (chicken intestinal loop model). A total of 540 cloacal swabs from laying hens (Hy-line brown chickens) aged 36 weeks and 200 batches of murine fecal pellets were collected from the same poultry house at Gaser Bin Gisher and Furnag regions in Libya. The samples were passed on pre-enrichment broth (Buffered Peptone Water) and enrichment broths (Rappaport Vassiliadis, Selenite broth, and tetrathionate), then the samples were cultured onto Xylose Lysine Deoxycholate agar, brilliant green agar, Salmonella Shigella agar, and Hektoen enteric agar. Single colonies were selected and stained by gram stain and tested biochemically using analytical profile index (API) 20 tests. Salmonella enteritidis was isolated from all the collected samples. The invasion of Salmonella enteritidis isolated from laying hens and murine feces was significantly higher in the anterior inoculation position compared to the posterior position of jejunum in both regions. The account of Salmonella enteritidis isolated from laying feces of hens and murine at Gaser Bengasher region was significantly higher than that isolated from the AlFurnge region. In the present study, the rodents act only as mechanical transmitters without affecting Salmonella invasiveness capacity. Furthermore, the invasion of Salmonella enteritidis depends on the inoculation position in the jejunum. Moreover, the invasiveness variation of Salmonella enteritidis isolated from the Gaser Bengasher and AlFurnge regions could be attributed to the presence of different Salmonella strains in the studied area. Salmonella enteritidis isolated from poultry and murine in the current study was sensitive to gentamicin, ciprofloxacin, and enrofloxacin and resistant to doxycycline, chloramphenicol, sulfafurazol, and ampicillin.
Keywords: Invasiveness, Layer chicken, Murine infestation, Salmonella enteritidis
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Research Paper
Molecular Characterization of Newcastle Disease Virus Genotype VII.1.1 from Egyptian Mallard Ducks with Nervous Manifestations
Ibrahim M, Wahba M, and Yehia N.
J. World Poult. Res. 14(2): 219-235, 2024; pii: S2322455X2400023-14
DOI: https://dx.doi.org/10.36380/jwpr.2024.23
ABSTRACT: In Egypt, Newcastle disease virus (NDV) strains of genotype VII are known to be mild in domestic waterfowl and considered reservoirs. This is the first report for the detection of NDV GVII.1.1 from ducks showing severe clinical signs with high mortalities and nervous manifestations, additionally, isolation of NDV and molecular characterization for full HN and F genes were performed. In the current study, 16 backyard mallard duck flocks showing severe nervous signs with high mortalities were investigated by real-time RT-PCR using primers specific for the Fusion gene of NDV and matrix gene for avian influenza virus (AIV). Fourteen duck flocks tested positive for AIV and only two flocks tested positive for NDV infection. NDV was isolated from the trachea and brain of the same duck from each flock then full HN and F genes were sequenced. The phylogenetic analysis of the F and HN genes indicated that these strains were clustered with NDV genotype VII 1.1. The F gene had a specific mutation that cluster them in a new branch with with A11T in the signal peptide, N30S, T324A, and 480K in the hydrophobic heptad repeat (HRc) compared to the Lasota strain. The duck strains of NDV isolated from the brain had N294K in the hydrophobic heptad repeat-b (HRb) of F protein compared to the strains isolated from the trachea of the same duck, which may have a role in crossing the blood-brain barrier. The HN protein had a specific mutation that clustered them in a new branch with mutations of A4V, R15K in the cytoplasmic region, A28T in the transmembrane domain, and S76L in the HRa. In addition, HN protein had A50T, S54R T232N, P392S, and T443V, and multiple mutations were detected in the neutralizing epitopes specific to strains in the present study (N120G, K284R, S521T) that can alter virus antigenicity. The current study indicated the continuous evolution of NDV strains from genotype VII circulating in Egypt with increasing pathogenicity in ducks. The present findings demonstrated the urgent need for the vaccination of ducks and geese with killed NDV vaccines to reduce economic losses due to virus infection and prevent transmission to chickens helping in ND control in Egypt.
Keywords: F gene, Genotype VII 1.1, Mallard duck, Newcastle disease virus, Protein
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Research Paper
Effect of Ginger (Zingiber officinale) and Cinnamon (Cinnamon zeylanicum) on Production, Fatty Acid Profile and Meat Quality of Broiler Chickens
Gaikwad D and Fulpagare Y.
J. World Poult. Res. 14(2): 236-243, 2024; pii: S2322455X2400024-14
DOI: https://dx.doi.org/10.36380/jwpr.2024.24
ABSTRACT: Phytogenic feed additives play an important role in broilers' nutrition, contributing to the improvement of the performance and quality of meat. The study aimed to evaluate the effect of Ginger (Zingiber officinale) and Cinnamon (Cinnamon zeylanicum) on broiler chicken production, fatty acid profile, and meat quality. In the present study, 140-day-old Vencob-400 broiler chicks were divided into 7 groups, including the control group (with no additives, T0), and T1 to T6 groups receiving varying concentrations of cinnamon and ginger. Accordingly, the chickens’ diet in T1 was supplemented with 1.0% cinnamon, T2 with 2.0% cinnamon, T3 with 3.0% cinnamon, T4 with 1.0% ginger, T5 with 2.0% ginger, and T6 with 3.0% ginger, all calculated based on dry matter. The carcass traits, weight of immune organs, organoleptic tests, and fatty acid profile of meat (breast and thigh) were recorded after the age of 42 days. The findings indicated that the breast and thigh had the highest organ weights in group T4 compared to other groups, however, the neck, back, drumstick, wing, and heart were not affected. The inclusion of 2% cinnamon (T2) and 1% ginger (T4) in the diet, significantly enhanced the color, texture, flavor, juiciness, and overall acceptability of the meat, compared to the diet of the control group. Adding a supplement of 2% cinnamon or 1% ginger powder to the diet of broiler chickens significantly decreased the percentage of total saturated fatty acid and increased the total unsaturated fatty acid (breast and thigh). The improvement in fatty acid composition is beneficial for the quality of the broiler meat. Based on these findings, it is recommended to supplement the diet of the broiler with either 2% cinnamon or 1% ginger powder to improve the carcass parameters and quality of the meat.
Keywords: Broiler meat, Characteristic, Cinnamon, Ginger, Quality
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Research Paper
Efficiency of Recycled Plastic Bedding Material and Gender in Improvement of Productive Traits, Physiological, and Immunological Parameters of Hybrid Broiler Chickens
EL-Masry MA, Hassan MS, Arafa AA, El-Afifi TM, Bealish AM, Ouda MM, Fathey IA, Fahmy HA and Abd El-Atty HK.
J. World Poult. Res. 14(2): 244-254, 2024; pii: S2322455X2400025-14
DOI: https://dx.doi.org/10.36380/jwpr.2024.25
ABSTRACT: Litter management is important for poultry housing husbandry and affects chicken performance. The present study evaluated the effect of bedding material and gender on the productive, physiological, and immunological performance of a new hybrid chicken (WINZY Line 105) under cold stress for 56 days of age. A total of 540 one-day-old broiler chicks were divided into two groups. The groups, including 270 males (M) and 270 females (F) were further divided into two sub-groups, including sawdust litter (SL) and plastic slatted floor (PSF), three replicates, and 45 chickens each. Broiler chickens were raised during the winter with an average temperature of 10oC for 56 days. Productive, physiological, and immunological performance parameters were measured. The obtained results indicated that M reared on PSF (M x PSF) recorded the highest values in body weight (BW), body weight gain (BWG), carcass characteristics, and the best values in feed conversion compared with other interaction groups during all experimental periods. In addition, F reared on PSF had higher BW, carcass, and thigh percentages, low feed intake (FI), and best feed conversion compared to females reared on SL. The M reared on PSF had the highest hepatic enzymes except AST which was higher in F reared on PSF than other treatments. However, renal function biomarkers (Creatine, Uric acid, Urea) were higher in both M and F that were reared on SL than those reared on PSF. Moreover, there was a significant interaction detected for antibody titters against avian influenza (H5) and Newcastle disease at 21 days of age suggesting that the highest values observed for M reared on PSF (M x PSF) compared with other interaction groups during the experimental period, and it was higher in F that reared on PSF than F reared on SL at 21 days of age. It can be concluded that plastic slatted floors could be an alternative to substitute wood shavings to raise broiler chickens since it was efficient from the perspective of environmental conditions and production rates.
Keywords: Bedding material, Environmental adaptation, Hybrid chicken, Immunological parameter, Productive trait, Plastic slatted floor, Performance
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Research Paper
Comparative Study of Various Diagnostic Methods for Detection of Mycoplasma gallisepticum and Mycoplasma synoviae in Egyptian Chicken Flocks
Emam M, Hashem YM, Ismael E, El Hariri M, and El-Jakee J.
J. World Poult. Res. 14(2): 255-263, 2024; pii: S2322455X2400026-14
DOI: https://dx.doi.org/10.36380/jwpr.2024.26
ABSTRACT: The significance of Mycoplasma gallisepticum (MG) and Mycoplasma synoviae (MS) in the poultry industry underscores the critical importance of diagnosing avian mycoplasmosis within the field of veterinary medicine. The present study aimed to compare various diagnostic methods for detecting MG and MS in Egyptian Chicken Flocks. A total of 360 samples were collected from breeder, layer, and broiler chickens from four governorates in Egypt. Conventional isolation methods and polymerase chain reaction (PCR) were used for the direct detection of MG and MS, while serum plate agglutination test (SPA) and Enzyme-linked immunosorbent assay (ELISA) were used for detecting antibodies against MG and MS. The highest detection rate of MG was found in commercial layers, followed by breeders, and broilers. Regarding MS, the highest detection rate was found in breeders, followed by commercial layers, and broilers. By comparing the used diagnostic methods, MG and MS were determined by the SPA test (40% and 31.1% respectively), ELISA test (31.7% and 23.6%), PCR (16.7% and 11.7%), and by the conventional culture method (10.8% and 3.9%). It could be concluded that the serological methods and PCR gave better sensitivity than culture methods and can be used in the diagnosis of avian mycoplasmosis.
Keywords: Chicken, Mycoplasma gallisepticum, Mycoplasma synoviae, Sensitivity
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