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... Intestinal inflammation in poultry is a complex response that involves immune and intestinal cells which is still not fully understood. Thus, to better understand the mechanisms that drive the chronic intestinal inflammation in fowl we conducted an experiment applying a previously established nutritional model of low-grade chronic intestinal inflammation to evaluate cytokine and chemokine profiles ...
... Valgus-varus deformity (VVD) is one of the leg disorders affecting health and welfare of broiler chickens. In research, several protocols are used to determine the prevalence and/or severity of VVD. This study aimed to investigate effects of five different protocols on the angulation of the tibiotarsal-tarsometatarsal joint. Angulation was determined (1) in living chickens with fixation at the fem ...
broilerchickens, etc ; algorithms; animal welfare; farmers; prototypes; steel; technology; Show all 7 Subjects
Abstract:
... Elevated platforms are a suitable possibility to enrich the environment of broiler chicken and, thus, improving their welfare. Early detection of health problems additionally contributes to an improved welfare of chickens and, at the same time, helps the farmer to optimize production efficiency. A prototype combined elevated platforms with weighing beams and an algorithm was developed to estimate ...
broilerchickens, etc ; Japan; antibiotic resistance; ceftiofur; oxytetracycline; serotypes; streptomycin; sulfamethoxazole; Show all 8 Subjects
Abstract:
... Ceftiofur, a third-generation cephalosporin antimicrobial, was used in Japanese hatcheries for many years before 2012. We continue to study Salmonella in broilers and their antimicrobial resistance. The current study aimed to express how the cessation of ceftiofur affects the antimicrobial resistance of Salmonella isolated from broiler chickens in Kagoshima Prefecture, Japan in 2017 and 2018. A to ...
Frances M. Colles; Daniela Karasova; Magdalena Crhanova; Stephen G. Preston; Adrian L. Smith; Marian S. Dawkins; Ivan Rychlik; Sabine G. Gebhardt-Henrich
broilerchickens, etc ; Campylobacter; biosecurity; campylobacteriosis; chicken meat; genes; humans; outer membrane proteins; Show all 8 Subjects
Abstract:
... Contaminated chicken meat is a major source of human Campylobacteriosis and rates of infection remain high, despite efforts to limit the colonisation of broiler (meat) chicken flocks on farms. Using conventional testing methods of culture or qPCR, Campylobacter is typically detected amongst broiler flocks from 3 wk of age, leading to the assumption that infection is introduced horizontally into ch ...
broilerchickens, etc ; chickpeas; duodenum; jejunum; males; metabolism; protein sources; soybean meal; villi; Show all 9 Subjects
Abstract:
... The aim of the study was to determine the effect of partial replacement of SBM protein with CPR-derived protein in the broiler rearing period from 22 to 42 days of age on the intestinal histomorphology and the composition of the intestinal microbial population. Male broiler chicks aged 1 day were assigned to two groups with different nutrition schemes (n = 100 in each, 5 cages of 20 chicks in each ...
broilerchickens, etc ; breasts; gene expression regulation; germplasm; hens; inosine monophosphate; meat; proteomics; taste; Show all 9 Subjects
Abstract:
... Inosine monophosphate (IMP) is an indicator of meat taste, and the molecular mechanism underlying IMP deposition in muscle tissues is important to developing superior poultry breeds. The aim of this study was to identify the key proteins regulating IMP deposition in different muscle groups of 180-day-old Jingyuan chickens (Hen) using a proteomics-based approach. We identified 1,300 proteins in the ...
Gustavo do Valle Polycarpo; Gabrieli Andressa de Lima; Thaís de Souza Ávida; Fábio Sampaio Rosas; Valquíria Cação Cruz-Polycarpo; Jaqueline Dalbello Biller; Bárbara Fernanda da Silva Barbosa; Maria Fernanda de Castro Burbarelli
broilerchickens, etc ; average daily gain; feed conversion; feed intake; meta-analysis; poultry production; Show all 6 Subjects
Abstract:
... Phytogenic additives have been studied intensively in broiler chicken production to substitute growth-promoting antibiotics. However, the comprehensive literature on this topic makes it difficult to understand overall results because there are a noticeable number of studies with conflicting conclusions. While several research studies have shown that phytogenic additives may increment broiler chick ...
broilerchickens, etc ; ammonia; applied research; excreta; fermentation; hydrogen sulfide; odors; poultry industry; remediation; temperature; Show all 10 Subjects
Abstract:
... Effective implementation of noxious odor mitigation strategies requires a thorough understanding of production causes, a clear definition of harmful odor limits, and practical and effective methods to measure emissions into the environment. With the increasing demand for poultry products and consequently, intensification of production systems, there is a need for versatile odor remediation approac ...
broilerchickens, etc ; antioxidants; astaxanthin; feed intake; food conversion; lutein; microalgae; oxidative stress; veterinary medicine; Show all 9 Subjects
Abstract:
... Recent interest in carotenoids has increased due to their antioxidant and production performance. Astaxanthin (AST) is a xanthophyll carotenoid abundantly distributed in microalgae, which is described as a highly potent antioxidant. Therefore, recent studies have tended to investigate the role of antioxidants in improving metabolic processes and physiological functioning of the body. It is now evi ...
Jéssica de Torres Bandeira; Tatiane Bandeira da Silva; Bruno César Azevedo de Brito; Renato Souto Maior Muniz de Morais; Maria Edna Gomes de Barros; Priscilla Maria Cavalcante Rocha; George Chaves Jimenez; Francisco de Assis Leite Souza; Joaquim Evêncio-Neto
broilerchickens, etc ; ammonia; circadian rhythm; research; rice straw; statistical analysis; summer; temperature; temporal variation; winter; Show all 10 Subjects
Abstract:
... The current study aims to determine the rhythmicity pattern in ammonia level inside broiler chicken houses raised on a traditional deep litter system. A total of 182 Ross broiler chickens (91 in the summer and 91 in the winter). Rice straw was used under three conditions: new, reused, and reused with daily wetting. Three daily readings of NH₃ were performed at two heights during a 42-day cycle. Th ...
broilerchickens, etc ; agriculture; blood; chicken industry; ileum; issues and policy; meta-analysis; probiotics; statistical models; villi; Show all 10 Subjects
Abstract:
... The broiler chicken industry needs effective probiotics to boost productivity and health. However, published data on the impact of in-feed Bacillus supplementation on physiological parameters in healthy broiler chickens are often conflicting and inconclusive. As a result, this meta-analysis aimed to assess the influence of Bacillus on intestinal histomorphometry (villus height [VH], crypt depth [C ...
broilerchickens, etc ; Campylobacter; decision making; defeathering; evisceration; food safety; meta-analysis; microbiological risk assessment; systematic review; Show all 9 Subjects
Abstract:
... Systematic review and meta‐analysis were conducted to quantify the effects of processing stages and interventions on the prevalence and concentration of Campylobacter on broiler carcasses. To comprehensively capture relevant evidence, six databases were searched using the keywords “Campylobacter” and “broiler chicken.” The literature search yielded 10,450 unique citations, and after applying prede ...
broilerchickens, etc ; Cryptosporidium meleagridis; genes; glycoproteins; pathogens; polymerase chain reaction; public health; ribosomal RNA; risk; China; Show all 10 Subjects
Abstract:
... BACKGROUND: Cryptosporidium is one of the most prevalent parasites infecting both birds and mammals. To examine the prevalence of Cryptosporidium species and evaluate the public health significance of domestic chickens in Guangdong Province, southern China, we analyzed 1001 fecal samples from 43 intensive broiler chicken farms across six distinct geographical regions. METHODS: Individual DNA sampl ...
broilerchickens, etc ; adipocytes; adipogenesis; adipose tissue; chicks; childhood obesity; growth and development; metabolism; models; muscles; viability; Show all 11 Subjects
Abstract:
... Primary preadipocytes are a valuable experimental system for understanding the molecular pathways that control adipocyte differentiation and metabolism. Chicken embryos provide the opportunity to isolate preadipocytes from the earliest stage of adipose development. This primary cell can be used to identify factors influencing preadipocyte proliferation and adipogenic differentiation, making them a ...
... A feeding trial (42 days) was conducted to assess the influence of dietary sodium butyrate supplementation on performance, nutrient digestibility and economics of broiler chicken. Two hundred forty straight run commercial broiler chicks were distributed in four groups with 4 replicates of 15 chicks following completely randomized design. The groups consisted of a control fed the basal diet (SB₀); ...
broilerchickens, etc ; adults; biosynthesis; breast muscle; genes; lipids; metabolic diseases; myoblasts; peroxisome proliferator-activated receptor gamma; wooden breast; Show all 10 Subjects
Abstract:
... Disorders affecting the breast muscle of modern commercial broiler chickens have increased in recent years. Wooden Breast (WB) myopathy is characterized by a palpably hard breast muscle with increased fat deposition. WB is a metabolic disorder with lipid accumulation considered to be a primary causal factor. The adult myoblasts, satellite cells, are a partially differentiated stem cell population ...
broilerchickens, etc ; agriculture; chicken meat; genetic variation; genome-wide association study; meat production; muscles; pectoralis muscle; quality control; Show all 9 Subjects
Abstract:
... Improving the production of broiler chicken meat has been a goal of broiler breeding programs worldwide for many years. However, the genetic architectures of skeletal muscle production traits in chickens have not yet been fully elucidated. In the present study, a total of 519 F₂ birds, derived from a cross of Arbor Acres broiler and Baier layer, were re-sequenced (26 F₀ individuals were re-sequenc ...
... Nowadays optimal feed formulation for poultry is sought for available content, which takes into account how the nutrients are digested and metabolized by the animal. The digestibility coefficients of the nutrients are usually obtained in in vivo trials that require feeding the birds with different diets of well-known composition and analyzing a large number of excreta samples. Nutrient excreta com ...
... Avian pathogenic E. coli (APEC) cause high first week mortality (FWM) in broiler chickens worldwide. In order to investigate the epidemiologic aspects of colibacillosis in broiler flocks it is important to develop reliable and cost-effective sampling guidelines. In this context, it is particularly important to define the minimum number of samples required to reliably identify the causative APEC cl ...