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EFFECT OF DIETARY SUPPLEMENTATION OF CORIANDER SEED (Coriandrum sativum L.) ON GUT MORPHOLOGY IN BROILER CHICKENS
No full textSeveral herbal plants have demonstrated remarkable efficacy in modulating the morphology of the gut, leading to improved nutrients absorption, enhanced growth, and reduced susceptibility to diseases. Aim of this study was to investigate the effects of different levels of coriander seed powder (CSP; 0 as T1, 1.5 as T2 and 3.5 as T3) in modulating broiler chickens gut morphology. A total of 180 one-day-old broiler chicks were randomly allocated into 3 treatment groups 60 chick/group in 3 replicates. The trial was designed according to a completely randomized design for 45 days. The histomorphology of duodenum, jejunum and ileum villus height (VH), villus width, crypt depth (CD) and villus height to crypt depth; VH:CD ratio were investigated. The result showed a significant increase (P<0.01) of villus height in two treatments (1.5% and 3.5%) as compared to control in all segments. Moreover, the significant increase (P<0.01) on VH:CD ratio is observed between treatments as compared to control in ileum and dietary use of 3.5% CSP had significant effects on the jejunum and duodenum as compared to the control group. In conclusion, the application of CSP at 1.5% and 3.5% had a positive effect on villus height and VH:CD ratio of all segments. However, further research is required to understand the precise mechanisms underlying medicine plant effects as well as what the ideal percentage for each plant will be added for a best positive effect on performance. © The Author(s) 202
PCR-BASED STUDY ON VIRAL PATHOGENS CIRCULATION AMONG CERVIDS IN THE MOSCOW REGION
No full textA molecular survey of selected viruses in free-ranging cervids was conducted in 15 different districts of Moscow region. Samples were collected from 178 game animals including 144 moose (Alces alces), 19 roe deer (Capreolus capreolus) and 15 deer without species information. Nasal swabs and tissue samples including parts of the nasal septum, upper tracheal rings, lung, heart, liver, kidneys and pooled organ samples were tested using polymerase chain reaction (PCR). Samples were studied for pestiviruses, herpesviruses, coronaviruses, group A rotaviruses, adenoviruses, hepatitis e and parainfluenza type 3 virus. None of the samples were positive for Bovine Coronavirus and SARS-COV-2, hepatitis E virus and parainfluenza type 3 virus. PCR results were positive for bovine herpesviruses (5.05), pestiviruses (0.56), rotaviruses (1.68). DNA of a new adenovirus, presumably causing a mild course of animal respiratory disease, was detected in samples of 6 animals (3.37). In conclusion, the conducted studies have shown that game animals of the Moscow region can be a natural reservoir of cattle viruses, and this must be taken into account when planning and organizing measures for the control and eradication of such notifiable diseases as bovine viral diarrhoea and infectious bovine rhinotracheitis. Monitoring studies and general disease surveillance of wild animal populations provide additional information on the epidemiology of infectious diseases in the region and allow timely measures to be taken to protect wild animals, domestic animals and the public. © (2024) Scienceline Publication
Efficiency of Recycled Plastic Bedding Material and Gender in Improvement of Productive Traits, Physiological, and Immunological Parameters of Hybrid Broiler Chickens
No full textLitter 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. Open Access: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/. © The Author(s) 202
Enterobacteriaceae Antibiotic Resistance Identification in Slender-billed Gull Species Migrating to Libya
No full textThe 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. © Open Access: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/
Effects of Body Condition, Anatomical Measurement, and Age on the Cumulative Number of Individual Egg Production and Laying Pattern in First Laying Hens
No full textThe individual egg production capacity of laying hens plays an outstanding role in achieving total production within a flock, which is affected by several internal and external factors. This study aimed to evaluate the effect of body condition, anatomical measurement, and age at the first laying (AFL) on the cumulative number of individual egg production (CNIEP) and laying pattern. Therefore, 172 Isa Brown laying chickens were investigated. Data on body condition and anatomical measurement were collected at the age of 16 weeks, while data on production was collected during 21 weeks of production (18-39 weeks). The obtained data were analyzed by Partial Least Square- Structural Equation Modeling (PLS-SEM) using smartPLS. The findings revealed that CNIEP could be predicted by body condition, anatomical measurement, and AFL. Compared to body condition and anatomical measurements, AFL was the most prominent factor in CNIEP. Body condition, anatomical measurement, AFL, and CNIEP had weak effects on the Isa Brown laying chickens’ patterns. © The Author(s) 202
Determining the Ideal Temperature and Fermentation Duration to Enhance Crude Protein Content and Reduce Crude Fiber in Rice Bran Using Solid-State Fermentation with Aspergillus niger (USM F4)
No full textSolid-state fermentation (SSF) offers a sustainable method for enhancing the nutritional quality of agricultural residues such as red rice bran. This study aimed to determine the optimal temperature and duration for SSF of red rice bran, focusing specifically on increasing the crude protein (CP) content and reducing the crude fiber (CF) content. SFF of rice bran with Aspergillus niger (A. niger) USM F4 was conducted over 14 consecutive days at three different temperatures (25°C, 35°C, and 45°C). A total of 63 samples of rice bran were divided into three temperature groups, each containing 21 samples. Three samples per group were collected at 48-hour intervals over the 14-day fermentation period. The fermentation process for the collected samples at 48-hour intervals was halted by oven drying at 60°C for 24 hours. The fermented products were subjected to proximate analysis for crude protein (CP), ash, ether extract (EE), and crude fiber (CF) contents using the methods outlined by the Association of Official Analytical Chemists (AOAC). The results revealed a significant effect of temperature and fermentation duration on CP, ash, EE, and CF content when compared to the unfermented rice bran kept at room temperature (25oC). The peak values of CP and the highest degradation of CF across all temperature levels were observed on day 10 while the maximum increase in ash and EE content occurred on day 8. Among the temperature conditions, the highest CP values and the lowest CF values were recorded at 35°C. Conversely, the lowest improvements in CP and CF degradation were observed at 25°C on day 10. In conclusion, the optimal conditions for SSF of rice bran with A. niger to enhance CP content and degrade CF are a temperature of 35°C and a fermentation duration of 10 days. Open Access: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/. © The Author(s) 202
Dry Matter Intake, Digestibility, and Growth Performance of Peulh Breed Lambs Fed Millet Silage Treated with NaCl
No full textLivestock feeding is a major challenge in Niger. The aim of this study conducted at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) experimental station in Sadoré, Niger, was to assess the effects of adding 1 NaCl to millet stover silage on the dry matter intake, digestibility, and weight performance of Peulh-bred lambs. Four treatments were tested, consisting of millet stover silages of two cultivars (Siaka Millet and Local Sadore) with or without adding NaCl. The biological material included 32 lambs of Peulh breed Niger aged around 15 months with an average weight of 28.64 kg. They were divided into four blocks of homogeneous average weight and for each block, there were eight lambs. Each treatment was randomly assigned to a block. The trial lasted 75 days, including 15 days of adaptation and 60 days of data collection. Weight evaluation of animals was recorded, and bromatological analyses were carried out. Results indicated that there were significant differences between silages, according to NaCl addition and treatment, for some parameters of chemical composition, feed value, and zootechnical parameters of lambs. Depending on the treatment, moderately high significant differences were recorded for ash, organic matter, and crude fiber while low significant differences were recorded for digestibility coefficient and organic matter digestibility. Regarding NaCl addition, highly elevated significant differences were recorded for ash and organic matter. These differences were moderately significant for crude fiber and organic matter digestibility. Low significant differences were recorded for dry matter, nitrogen-free extract, digestibility coefficient, feed value, total weight gain, and average daily gain. It is concluded that the addition of 1 NaCl negatively affects the weight development of lambs although it improves the quality of silage parameters such as dry matter, ash, and digestibility coefficient. © The Author(s) 2024. All Rights Reserved
The Relationship of Histamine Content in European Pilchard (Sardina pilchardus) with Freshness, Temperature, and Storage Duration
No full textHistamine food poisoning, stemming from the consumption of certain histamine-rich fish species, such as tuna, mackerel, European pilchards, and herring, is one of the major public health issues worldwide. The present study aimed to evaluate the histamine content in fresh European pilchard (Sardina pilchardus Walbaum, 1792) of Mehdia, a coastal city in the north of Morocco. Three randomly selected batches of fresh European pilchards, each weighing 20kg, were obtained from different boats upon landing. The evolution of histamine production was monitored every 8 hours for 6 days, with one batch stored at 0°C and the other at 10°C. The organoleptic characteristics were examined considering sensory evaluation according to the rating system of European Council Regulation No. 2406/96 as common marketing standards for certain fishery products and the quality index method (QIM). The histamine content in European pilchard flesh was determined using the fluorometric method. The results indicated that the average histamine content did not exceed 5 ppm during storage at 0°C. The freshness ratings were highest during the first 3 days, corresponding to QIM values of 0 to 10 at 0°C. On days 4 and 5, the freshness ratings were on quality A, corresponding to QIM values of 11 and 12, and on the last day, they were on quality B, corresponding to a QIM value of 15 with preservation of the organoleptic quality. Statistically, a significant correlation was found between the European pilchard’s freshness and the storage duration. In contrast, this correlation between the histamine content and the storage duration was insignificant. At 10°C, the average histamine content exceeded the regulatory limit in force (100 ppm) after 32 hours of storage, and spoilage occurred on day 3. Statistical analysis revealed a strong correlation between the histamine content, storage temperature, the degree of freshness, and the duration of storage. The extra freshness quality index of European pilchard guarantees a very large margin of safety regarding histamine and can be consumed without risk. © The Author(s) 2024. All Rights Reserved
Constraints to the Development of Turkey Farming in Southern Benin
No full textThe turkeys are reared throughout the national territory of Benin, but their breeding is less developed than other poultry species, such as chickens and ducks. The current study aimed to characterize turkey farming in Southern Benin to identify the constraints associated with the farming practice that limit its development. A survey was performed in 104 turkey farms in the Atlantic, Ouémé, and Zou departments. The frequencies of qualitative variables and average quantitative variables were calculated and compared across departments. The investigated variables included turkey housing, feeding practices, reproduction management, health management, difficulties encountered, marketing of animals, and farm products. It was found that the housing, feeding, health monitoring, and constraints varied from one department to another. The turkeys were raised in fence-run buildings in the Ouémé (76.7), modern poultry houses in the Atlantic (75), and traditional habitats (42.9) with a free range in the Zou. The free range prevented farmers from separating the turkeys from other poultry species. The poultry species present with turkeys on studied farms were chickens, ducks, and guinea fowl. The turkeys were fed more with commercial feed in the Atlantic (100) and Ouémé (92.7) regions and with cereals and agricultural by-products in Zou (82.1). The prophylaxis consisted of deworming the birds, vaccinating them against Newcastle disease, controlling bacterial infections with antibiotics, and giving them vitamins in drinking water. The farmers vaccinated more turkeys in Zou than in Atlantic and Ouémé. The vaccination and administration of antibiotics do not prevent the introduction of disease into farms due to poor farm biosecurity, resulting in animal deaths. In conclusion, this study identified the obstacles that limit the development of turkey farming by region in Southern Benin. These barriers are primarily related to housing, feeding, mating, and marketing. Scientific research could potentially solve some of these issues, notably those concerning feeding and mating success. However, housing and marketing concerns would necessitate support from the authorities. © The Author(s) 2024. All Rights Reserved
Effects of Thermal Manipulation During the Second Half of Incubation on Embryo Physiology, Hatching Parameters, and Quality of Broiler Chickens in Tropical Climate of Togo
No full textChickens are sensitive to environmental challenges caused by temperature. The current study aimed to determine the effects of heat manipulation during embryonic development on the physiological responses of Goliath chickens. A total of 2000 hatching eggs from 48-week-old breeders were weighed, numbered, and randomly distributed equally into 4 incubators. Each incubator received 500 eggs (4 replicates of 125 eggs each). Eggs in two of the incubators were rotated hourly at a 45° angle and maintained at 37.8°C and 60% relative humidity (T0 groups). Between embryonic days (ED) 10 and 18 of incubation, the eggs from the other two incubators were heated to 38.5°C for 6 hours per day (T1 groups). The eggs were reweighed and candled, and viable eggs were moved to the hatching baskets at ED 18 of incubation. Hatching eggs were examined individually for hatching events every three hours during the final three days of incubation. On day 21, blood samples were collected from 12 chicks per group for hormonal and biochemical analyses. The evaluated blood parameters included Triiodothyronine (T3), T4 (thyroxine), cortisol, uric acid, lactate dehydrogenase, and total protein. At hatch, chicks were weighed and their quality (survival after hatching and performance standards) was evaluated. Data were collected on embryonic development, hatching window, hatching events, biochemical parameters, and hormonal concentrations. Results indicated that hatchability, chick’s weight, Tri-iodothyronine, and corticosterone were higher in the T1 group, compared to the control group. At hatch on day 21, the pipping muscle of chicks in the treated group (T1) was significantly heavier than that of the control group, while the embryonic mortality rate was significantly higher in the T0 group. In conclusion, applying heat treatment for 6 hours at 38.5°C from ED10-ED18 of embryogenesis increased significantly the hatching rate, the pipping muscle, and the chick’s weight in this study