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1. Groups and Individuals: Optical Flow Patterns of Broiler Chicken Flocks Are Correlated with the Behavior of Individual Birds

Author:
Gebhardt-Henrich, Sabine G.; Stratmann, Ariane; Dawkins, Marian Stamp
Source:
Animals 2021 v.11 no.2
ISSN:
2076-2615
Subject:
broiler chickens,   etc   ; flocks; statistical analysis; variance;     Show all 4 Subjects
Abstract:
... Group level measures of welfare flocks have been criticized on the grounds that they give only average measures and overlook the welfare of individual animals. However, we here show that the group-level optical flow patterns made by broiler flocks can be used to deliver information not just about the flock averages but also about the proportion of individuals in different movement categories. Mean ...
DOI:
10.3390/ani11020568

2. Characterisation of adenovirus strains represented species B and E isolated from broiler chicken flocks in eastern Poland

Author:
Niczyporuk, Jowita Samanta; Kozdrun, Wojciech; Czekaj, Hanna; Piekarska, Karolina; Stys-Fijol, Natalia
Source:
Heliyon 2021 v.7 no.2 pp. e06225
ISSN:
2405-8440
Subject:
broiler chickens,   etc   ; codon usage; hepatitis; pathogenicity; Poland;     Show all 5 Subjects
Abstract:
... Fowl adenovirus strains were isolated from the internal organs of 3-wk-old broiler flocks exhibited clinical signs associated with inclusion body hepatitis (IBH). The isolated strains were molecularly characterised and sequencing revealed three distinct clusters. One cluster showed close proximity at the nucleotide level with adenovirus type/species - 6/E, 7/E, 8a/E, and 8b/E. The second cluster c ...
DOI:
10.1016/j.heliyon.2021.e06225

3. A Machine Vision-Based Method Optimized for Restoring Broiler Chicken Images Occluded by Feeding and Drinking Equipment

Author:
Guo, Yangyang; Aggrey, Samuel E.; Oladeinde, Adelumola; Johnson, Jasmine; Zock, Gregory; Chai, Lilong
Source:
Animals 2021 v.11 no.1
ISSN:
2076-2615
Subject:
broiler chickens,   etc   ; algorithms; color; poultry housing;     Show all 4 Subjects
Abstract:
... The presence equipment (e.g., water pipes, feed buckets, and other presence equipment, etc.) in the poultry house can occlude the areas of broiler chickens taken via top view. This can affect the analysis of chicken behaviors through a vision-based machine learning imaging method. In our previous study, we developed a machine vision-based method for monitoring the broiler chicken floor distributio ...
DOI:
10.3390/ani11010123

4. Assessment of mobility and pain in broiler chickens with identifiable gait defects

Author:
Tahamtani, Fernanda M.; Herskin, Mette S.; Foldager, Leslie; Murrell, Jo; Sandercock, Dale A.; Riber, Anja B.
Source:
Applied animal behaviour science 2021 v.234 pp. 105183
ISSN:
0168-1591
Subject:
broiler chickens,   etc   ; animal behavior; gait; pain; poultry production;     Show all 5 Subjects
Abstract:
... Gait defects, assessed as gait score (GS), is a common welfare problem in broiler chicken production. The aim of this study was to examine whether birds with GS2 experience pain and poor locomotor ability compared to birds of lower GS. From day 0–27 of age, 600 Ross 308 birds were housed in simulated commercial conditions (stocking density 40 kg/m²). On day 27, all birds were gait scored and 192 b ...
DOI:
10.1016/j.applanim.2020.105183

5. Can probiotic or prebiotic yeast (Saccharomyces cerevisiae) serve as alternatives to in-feed antibiotics for healthy or disease-challenged broiler chickens?: a review

Author:
Ahiwe, E.U.; Tedeschi Dos Santos, T.T.; Graham, H.; Iji, P.A.
Source:
TheJournal of applied poultry research 2021 v.30 no.3 pp. 100164
ISSN:
1056-6171
Subject:
broiler chickens,   etc   ; Saccharomyces cerevisiae; biosecurity; consumer demand; meat production; poultry production; prebiotics; probiotics; research; yeasts;     Show all 10 Subjects
Abstract:
... The ban on the use of antibiotics in feed for broiler chickens in some parts of the world, coupled with increasing consumer demand for antibiotics-free poultry products, has in recent decades increased the interest of poultry researchers and producers to identify suitable alternatives to such antibiotics. One such alternative is yeast (S. cerevisiae). This review discusses the potential of probiot ...
DOI:
10.1016/j.japr.2021.100164

6. Determination of five antimicrobial families in droppings of therapeutically treated broiler chicken by high-performance liquid chromatography-tandem mass spectrometry

Author:
Pokrant, Ekaterina; Trincado, Lina; Yévenes, Karina; Terraza, Gigliola; Maddaleno, Aldo; Martín, Betty San; Zavala, Sebastián; Hidalgo, Héctor; Lapierre, Lisette; Cornejo, Javiera
Source:
Poultry science 2021 v.100 no.9 pp. 101313
ISSN:
0032-5791
Subject:
broiler chickens,   etc   ; ciprofloxacin; enrofloxacin; excretion; feces; florfenicol; males; multiresidue analysis; oxytetracycline; tandem mass spectrometry; therapeutics; tylosin;     Show all 12 Subjects
Abstract:
... Antimicrobials are currently used in poultry for disease treatment. However, their excretion in bird feces may contaminate the environment. Considering this, the objective of this work was to quantify antimicrobials residues concentrations in therapeutically treated broiler chicken droppings throughout the post-treatment period. For this aim a multiresidue method using high-performance liquid chro ...
DOI:
10.1016/j.psj.2021.101313

7. Associations between behaviour and health outcomes in conventional and slow-growing breeds of broiler chicken

Author:
Abeyesinghe, S.M.; Chancellor, N.M.; Hernandez Moore, D.; Chang, Y.-M.; Pearce, J.; Demmers, T.; Nicol, C.J.
Source:
Animal 2021 v.15 no.7 pp. 100261
ISSN:
1751-7311
Subject:
broiler chickens,   etc   ; body weight; energy; feed conversion; gait; mortality; plumage; pododermatitis; welfare assessment;     Show all 9 Subjects
Abstract:
... Broiler chickens are prone to a range of complex health and welfare issues. To support informed selection of welfare traits whilst minimising impact on production efficiency and to address a major gap in understanding, we systematically explored associations between health and behavioural indicators of broiler welfare. One conventional (CNV, n = 350) and two slow-growing broiler breeds (SGH and SG ...
DOI:
10.1016/j.animal.2021.100261

8. Characterization of poultry house dust using chemometrics and scanning electron microscopy imaging

Author:
Ahaduzzaman, Md; Milan, Luke; Morton, Christine L.; Gerber, Priscilla F.; Walkden-Brown, Stephen W.
Source:
Poultry science 2021 v.100 no.7 pp. 101188
ISSN:
0032-5791
Subject:
broiler chickens,   etc   ; chemical analysis; chemometrics; dust; excreta; flocks; particulates; poultry housing;     Show all 8 Subjects
Abstract:
... Poultry house dust is composed of fine particles which likely originate from a diverse range of materials such as feed, litter, excreta, and feathers. Little is known about the contribution of these sources to broiler house airborne dust so the present study was designed to identify the relative contributions of these sources. Samples of feed, excreta, feather, and bedding, known mixtures of these ...
DOI:
10.1016/j.psj.2021.101188

9. A method for weighing broiler chickens using improved amplitude-limiting filtering algorithm and BP neural networks

Author:
Ma, Weihong; Li, Qifeng; Li, Jiawei; Ding, Luyu; Yu, Qinyang
Source:
Information processing in agriculture 2021 v.8 no.2 pp. 299-309
ISSN:
2214-3173
Subject:
broiler chickens,   etc   ; agriculture; algorithms; decision making; hybrids; information; prediction; weight gain; China;     Show all 9 Subjects
Abstract:
... Broiler chickens are traditionally weighed by steelyard or platform scale, which is time-consuming and labor-intensive. Broiler chickens usually exhibit stress-related behavior during weighing. The 3D camera-based weighing system for broiler chickens can only weigh the broiler chicken in the monitoring area. Usually, it makes poor weight prediction due to poor segmentation especially when the broi ...
DOI:
10.1016/j.inpa.2020.07.001

10. Volatile and nonvolatile taste compounds and their correlation with umami and flavor characteristics of chicken nuggets added with milkfat and potato mash

Author:
Sabikun, Nahar; Bakhsh, Allah; Rahman, M. Shafiur; Hwang, Young-Hwa; Joo, Seon-Tea
Source:
Food chemistry 2021 v.343 pp. 128499
ISSN:
0308-8146
Subject:
broiler chickens,   etc   ; camphene; correlation; eggs; electronic tongue; food chemistry; mash; meat; milk fat; potatoes; taste; umami;     Show all 12 Subjects
Abstract:
... This study investigated the chemical compounds and umami characteristics of chicken nuggets using spent meat (SM) enriched with milkfat (MF) and potato mash (PM). Four different spent nuggets (SNs) i.e. T1 (75% SM, 5% MF), T2 (70% SM, 8% MF, 2% PM), T3 (65% SM, 11% MF, 4% PM), and T4 (60% SM, 14% MF, 6% PM) were developed and compared with control using broiler chicken muscles (without MF and PM). ...
DOI:
10.1016/j.foodchem.2020.128499

11. COVID-19 morbidity and mortality in U.S. meatpacking counties

Author:
Saitone, Tina L.; Aleks Schaefer, K.; Scheitrum, Daniel P.
Source:
Food policy 2021 v.101 pp. 102072
ISSN:
0306-9192
Subject:
broiler chickens,   etc   ; COVID-19 infection; beef; disease transmission; food policy; morbidity; mortality; pork;     Show all 8 Subjects
Abstract:
... In this paper, we investigate the extent to which the presence of a large meatpacking (i.e., beef, pork, and broiler chicken) plant has affected county-level COVID-19 transmission dynamics. We find that—within 150 days after emergence of COVID-19 in a given county—the presence of a large beef packing facility increases per capita infection rates by 110%, relative to comparable counties without mea ...
DOI:
10.1016/j.foodpol.2021.102072

12. Mass spectrometric identification and quantification of the antibiotic clavulanic acid in broiler chicken plasma and meat as a necessary analytical tool in finding ways to increase the effectiveness of currently used antibiotics in the treatment of broiler chickens

Author:
Putecova, Kristina; Nedbalcova, Katerina; Bartejsova, Iva; Zouharova, Monika; Matiaskova, Katarina; Stastny, Kamil
Source:
Analytical and bioanalytical chemistry 2021 v.413 no.13 pp. 3561-3571
ISSN:
1618-2642
Subject:
broiler chickens,   etc   ; administered dose; analytical chemistry; antimicrobial properties; clavulanic acid; detection limit; human health; pharmacodynamics; pharmacokinetics;     Show all 9 Subjects
Abstract:
... Clavulanic acid is a molecule with antimicrobial effect used in several livestock species treatment. Its inclusion in the treatment of infectious diseases of broilers requires determination of pharmacokinetic and pharmacodynamic parameters in order to determine the appropriate dosage for broilers and ensure safety of chicken products for human health. The present study describes the optimisation o ...
DOI:
10.1007/s00216-021-03307-6

13. A Case of Infectious Laryngotracheitis in an Organic Broiler Chicken Farm in Greece

Author:
Tsiouris, Vasileios; Mavromati, Natalia; Kiskinis, Konstantinos; Mantzios, Tilemachos; Homonnay, Zalan G.; Mato, Tamas; Albert, Mihaly; Kiss, Istvan; Georgopoulou, Ioanna
Source:
Veterinary sciences 2021 v.8 no.4
ISSN:
2306-7381
Subject:
broiler chickens,   etc   ; ; Gallid alphaherpesvirus 1; biosecurity; farms; respiratory system; vaccination; vaccines; Greece;     Show all 9 Subjects
Abstract:
... Infectious laryngotracheitis is an economically significant viral disease of chickens, that mainly affects the upper respiratory tract, and is present worldwide. This case reports the first outbreak of infectious laryngotracheitis in a four-week-old organic broiler farm and surrounding flocks in Greece, with typical clinical symptoms and lesions, allegedly provoked by a wild strain of infectious l ...
DOI:
10.3390/vetsci8040064

14. Effects of Diet and Phytogenic Inclusion on the Antioxidant Capacity of the Broiler Chicken Gut

Author:
Griela, Eirini; Paraskeuas, Vasileios; Mountzouris, Konstantinos C.
Source:
Animals 2021 v.11 no.3
ISSN:
2076-2615
Subject:
broiler chickens,   etc   ; antioxidant activity; antioxidants; diet; digestive system; energy; genes; hybrids; poultry production; protein intake;     Show all 10 Subjects
Abstract:
... The reduction in energy and protein dietary levels, whilst preserving the gut health of broilers, is warranted in modern poultry production. Phytogenic feed additives (PFAs) are purported to enhance performance and antioxidant capacity in broilers. However, few studies have assessed PFA effects on a molecular level related to antioxidant response. The aim of this study was to investigate the effec ...
DOI:
10.3390/ani11030739

15. Performance of broiler chicken submitted to a quantitative feed restriction program

Author:
Bordin, Tiago; Pilotto, Fernando; Pesenatto, Daniela; de Mendonça, Bruno Sebastião; Daroit, Luciane; Rodrigues, Laura Beatriz; dos Santos, Ezequiel Davi; Dickel, Elci Lotar
Source:
Tropical animal health and production 2021 v.53 no.1 pp. 87
ISSN:
0049-4747
Subject:
broiler chickens,   etc   ; animal health; feed conversion; males; mortality; poultry industry; restricted feeding; weight gain;     Show all 8 Subjects
Abstract:
... The search for better zootechnical indexes such as feed conversion, daily weight gain, uniformity, and lower bird mortality has become a priority within the poultry industry. The use of food restriction programs has emerged as an alternative to improve these rates as well as to mitigate the effect of the increased cost of nutrition over the past few years. In this work, the feed conversion (FC), d ...
DOI:
10.1007/s11250-020-02456-7

16. The effects of clove seed (Syzygium aromaticum) dietary administration on carcass characteristics, meat quality, and sensory attributes of broiler chickens

Author:
Suliman, Gamaleldin M.; Alowaimer, Abdullah N.; Al-Mufarrej, Saud I.; Hussein, Elsayed O.S.; Fazea, Esam H.; Naiel, Mohammed A.E.; Alhotan, Rashed A.; Swelum, Ayman A.
Source:
Poultry science 2021 v.100 no.3 pp. 100904
ISSN:
0032-5791
Subject:
broiler chickens,   etc   ; Syzygium aromaticum; body composition; cloves; gizzard; heart; liver; meat; meat quality; water holding capacity;     Show all 10 Subjects
Abstract:
... Previous studies have shown positive outcomes associated with the incorporation of cloves into broiler chicken diets. This study aimed to evaluate carcass characteristics, meat quality, and sensory attributes of broiler chickens fed diets supplemented with different clove seed levels. A total of 240 day-old Ross 308 broiler chicks were fed 1 of seven dietary treatments. The control group diet cont ...
DOI:
10.1016/j.psj.2020.12.009

17. Optical flow, behaviour and broiler chicken welfare in the UK and Switzerland

Author:
Dawkins, Marian Stamp; Wang, Lawrence; Ellwood, Stephen A.; Roberts, Stephen J.; Gebhardt-Henrich, Sabine G.
Source:
Applied animal behaviour science 2021 v.234 pp. 105180
ISSN:
0168-1591
Subject:
broiler chickens,   etc   ; Bayesian theory; animal behavior; automation; cameras; data analysis; flocks; mortality; variance; welfare assessment; Switzerland;     Show all 11 Subjects
Abstract:
... Although systems for automated assessment of broiler chicken welfare have now been developed on a small scale, none are currently in widespread commercial use. We addressed this gap between research and uptake by field testing a camera system that uses the optical flow patterns made by the movements of flocks to monitor bird welfare. We tested the hypothesis that the movement patterns made by floc ...
DOI:
10.1016/j.applanim.2020.105180

18. Research Note: The use of ammonia gas for Salmonella control in poultry litters

Author:
Mendonça, Bruno S.; de Oliveira, Willian R.; Pereira, Rhaquel S.; Santos, Luciana R.; Rodrigues, Laura B.; Dickel, Elci L.; Daroit, Luciane; Pilotto, Fernando
Source:
Poultry science 2021 v.100 no.1 pp. 314-318
ISSN:
0032-5791
Subject:
broiler chickens,   etc   ; Salmonella Heidelberg; ammonia; containers; disinfection; farms; hoses; microorganisms; poultry housing; poultry manure; serotypes;     Show all 11 Subjects
Abstract:
... A new poultry litter disinfection methodology against pathogenic Salmonella spp. serovars using gaseous ammonia is proposed in this study. In the laboratory, the poultry litter was disposed into plastic containers and experimentally contaminated with 3 Salmonella spp. serovars separately. Positive and negative control groups were tested. With a system of hoses, 1% gaseous ammonia was injected into ...
DOI:
10.1016/j.psj.2020.10.008

19. Comparative study of histological and histo-chemical image processing in muscle fiber sections of broiler chicken

Author:
Achouri, A.; Melizi, M.; Belbedj, H.; Azizi, A.
Source:
TheJournal of applied poultry research 2021 v.30 no.3 pp. 100173
ISSN:
1056-6171
Subject:
broiler chickens,   etc   ; comparative study; computer software; histology; image analysis; light microscopy; morphometry; muscle fibers; prices; research; scanners; Fiji;     Show all 12 Subjects
Abstract:
... The image processing of muscular fibers has seen significant improvements over the last decades, from light microscopy acquisition to virtual microscopy and from manual segmentation and fiber typing to automatic. The present study aims to discuss the main tools employed in different histo-enzymological image processing phases applied to muscle fibers, which are respectively: the acquisition, segme ...
DOI:
10.1016/j.japr.2021.100173

20. Surgical amputation of polymelia in a broiler chicken (Gallus gallus domesticus) with caudal duplication syndrome

Author:
Locke, Salina; Johnson, Daniel
Source:
Journal of exotic pet medicine 2021 v.38 pp. 1-4
ISSN:
1557-5063
Subject:
broiler chickens,   etc   ; amputation; computed tomography; dermatitis; farms; feces; females; femur; hindlimbs; medicine; patients; pelvis; radiography; veterinary clinics;     Show all 14 Subjects
Abstract:
... Caudal duplication syndrome is a rare developmental anomaly thought to be a result of incomplete twinning.A 6-week-old female broiler chicken (Gallus gallus domesticus) presented to a private specialty exotic animal hospital, for evaluation of accessory hindlimbs due to one of the limbs becoming soiled with feces causing localized dermatitis. The bird had been rescued from culling at an undisclose ...
DOI:
10.1053/j.jepm.2021.03.001