Asymptomatic carriage of Campylobacter jejuni is highly prevalent in chicken flocks. Thus, we investigated whether chronic affects intestinal functions despite the absence clinical symptoms. An experiment was carried out which commercial chickens were orally infected with C. (1 × 10 8 CFU/bird) at 14 days life. Changes ion transport and barrier function assessed by short-circuit current ( I sc ) transepithelial conductance G t Ussing chambers. increased cecum colon Campylobacter-infected 7 d...

1. An experiment was conducted to study the effects of different Bacillus subtilis concentrations on productivity, carcase quality, immune response and gut microflora broiler chickens. 2. There were 5 treatment groups: control, with no added supplementation; 4 groups receiving feed supplemented B. subtilis. 3. Weight gain significantly higher conversion rate better in all subtilis, regardless its concentration. The given supplementation produced relatively bigger breasts, smaller carcases...

Aims To evaluate the impact of diet composition on colonization dynamics Camp. jejuni and related physiological parameters in chicken intestine. Methods Results A total 54 1-day-old Ross 308 broiler chicks were randomly divided into three isocaloric isonitrogenous dietary groups: maize-based (MB), wheat-based (WB) with NSP-degrading enzyme supplementation (WBES). Chickens orally infected 108 CFU day 14, samples (n = 6) collected 7, 14 21 days postinfection (DPI), respectively. Colony forming...

The contribution of the intestinal tract to differences in residual feed intake (RFI) has been inconclusively studied chickens so far. It is also not clear if RFI-related function are similar raised different environments. objective was investigate nutrient retention, visceral organ size, morphology, jejunal permeability and expression genes related barrier function, innate immune response diverging RFI at 2 locations (L1: Austria; L2: UK). experimental protocol similar, same dietary...

Feed additives that can improve intestinal health and maintain a diverse resilient microbiota of poultry are great importance. Thus, the current study investigated effects single strain butyric acid-producing Clostridium (C. butyricum) with (symbiotic) or without wheat bran supplementation on cecal composition gut characteristics broiler chickens. In total, 384 male Ross 308 day-old chickens were divided into four dietary treatment groups fed ad libitum until day 37 life. Cecal samples taken...

Heat stress is one of the most important issues in broiler flocks impairing animal health and productivity. On a cellular level, excess heat exposure can trigger shock response acting for restoration cell homeostasis by several mechanisms, such as affecting protein synthesis, redox pro-inflammatory cytokine production. The major aim this study was to establish novel avian hepatocyte-nonparenchymal co-culture model investigating effects its interaction with inflammation chicken liver. Cell...

Trichothecene mycotoxins such as T-2 toxin cause severe problems for agriculture, well veterinary medicine. As liver is one of the key organs in metabolism, main aim our study was to investigate immunomodulatory and cytotoxic effects toxin, using primary hepatocyte mono-culture hepatocyte—nonparenchymal cell (predominantly Kupffer cell) co-culture models chicken. Cultures were exposed 10 (T10 group), 100 (T100 group) 1000 (T1000 nmol/L treatment 8 or 24 h. Alterations cellular metabolic...

Several feed efficiency (FE) metrics are currently used in livestock production to select for improved FE. Whether or not different FE similarly estimate physiological characteristics chickens of diverging has been reported so far. This study aimed assess potential differences intake (FI), performance, and nutrient excretion broiler when ranked according their residual FI (RFI), BW gain (RBG), RFI (RIG), G:F between d 7 35 life. The was determined daily recorded once a week. ranking into...

1. The objective of this study was to investigate differences in growth performance, serum intermediary metabolites, acute-phase proteins and white blood cells low, medium high-residual feed intake (RFI) chickens. It also assessed if the environment affects efficiency (FE) FE-related performance profiles 2. Individual body weight (BW) (FI) were recorded from d 7 life. At 5 weeks age, female male broiler chickens (Cobb 500) selected according their RFI (L1: Austria; L2: UK; n = 9/RFI group,...

Entomopathogenic bacteria are obligate symbionts of entomopathogenic nematode (EPN) species. These biosynthesize and release non-ribosomal-templated hybrid peptides (NR-AMPs), with strong, large-spectral antimicrobial potential, capable inactivating pathogens belonging to different prokaryote, eukaryote taxa. The cell-free conditioned culture media (CFCM) Xenorhabdus budapestensis X. szentirmaii efficiently inactivate poultry like Clostridium, Histomonas, Eimeria. To learn whether a...

As heat stress is a major emerging issue in poultry farming, investigations on the molecular mechanisms of heat-triggered cellular response chickens are special importance. In present study, 32-day-old Ross 308 broiler were subjected to 37 °C environmental temperature combined with 50% relative humidity for 4 or 8 h respectively. Following sampling, redox parameters such as malondialdehyde (MDA), reduced glutathione (GSH), protein carbonyl levels well peroxidase activity assessed liver,...

The aim of the present study was to investigate effects butyrate as a feed supplement on expression insulin signalling proteins potent regulators metabolism and growth in Ross 308 broiler chickens fed maize- or wheat-based diets. Both diets were supplemented with non-protected (1.5 3.0 g/kg diet, respectively) protected (0.2 diet); diet control groups prepared without any additives (control). On day 42 life, systemic blood samples drawn for analyses glucose concentrations, tissue (liver,...

The effects of a single strain lactic acid producing bacteria (LAB) (Lactobacillus farciminis 5x109 CFU/kg) and butyric (BAB) (Clostridium butyricum 2.5x109 with or without wheat bran supplementation (WB), were investigated on the production traits several gut characteristics broiler chickens. In total, 576 male Ross 308 day-old chickens divided into 24 floor pens fed corn-soybean based control diet (C) five other probiotic supplemented diets (LAB, BAB, LAB+WB, BAB+WB, C+WB) in 4 replicates....

Abstract Diets rich in various soluble nondigestible carbohydrates (sNDCs) were evaluated on different intestinal characteristics (histological, physico‐chemical and microbiological) of chickens compared with a maize‐based diet as control. A total 160 Ross 308 male kept deep litter pens ( n = 40) fed their appropriate diets from Day 1 to 35 life. Four isocaloric isonitrogenous diets, differing sNDC content, composed; control (containing maize the only cereal), maize–wheat‐based (M + W)...

A szerzők első ellésű lacaune fajtájú anyajuhok (n=64) tőgytulajdonságait, valamint a vizsgált tőgytulajdonságok és az anyák tejtermelésének összefüggéseit értékelték egy Győr-Moson-Sopron vármegyei tenyészetben. vizsgálatok során laktáció harmadában, esti befejés alkalmával, 1-9 pontos skálán tőgytulajdonságait (tőgymélység, tőgy elülső illesztés, tőgyalak, tőgyfüggesztés, tőgyalap tőgyszimmetria, tőgybimbó helyeződés, hossz). Az anyajuhokat naponta kétszer, 2 x 24 állásos fejőházban...

A healthy microbiota present in the small intestine contributes significantly to intestinal function, including digestion, nutrient absorption and health. The current study investigated effects of a prebiotic, probiotic symbiotic supplementation on ileal composition broilers at 7 days age. In total 574 male Ross 308 day-old chickens were divided into four groups using six replicate pens 24 per pen. maise-soybean based control diet (C), supplemented with probiotics (Broilact; Br), (inulin,...