scholarly journals Levels of Firmicutes, Actinobacteria Phyla and Lactobacillaceae Family on the Skin Surface of Broiler Chickens (Ross 308) Depending on the Nutritional Supplement and the Housing Conditions

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 287
Author(s):  
Paulina Cholewińska ◽  
Marta Michalak ◽  
Konrad Wojnarowski ◽  
Szymon Skowera ◽  
Jakub Smoliński ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Rapeseed Meal ◽  
Skin Surface ◽  
Nutritional Supplement ◽  
The Other ◽  
Feed Additive ◽  
Pcr Analysis ◽  
Housing Conditions ◽  
Variable Level ◽  
Firmicutes Phylum

The microbiome of animals, both in the digestive tract and in the skin, plays an important role in protecting the host. The skin is one of the largest surface organs for animals; therefore, the destabilization of the microbiota on its surface can increase the risk of diseases that may adversely affect animals’ health and production rates, including poultry. The aim of this study was to evaluate the effect of nutritional supplementation in the form of fermented rapeseed meal and housing conditions on the level of selected bacteria phyla (Firmicutes, Actinobacteria, and family Lactobacillaceae). The study was performed on 30 specimens of broiler chickens (Ross 308), individually kept in metabolic cages for 36 days. They were divided into 5 groups depending on the feed received. On day 36, skin swabs were individually collected. Temperature and humidity were measured in the room. The temperature was measured every 2 days (18 measurements × 6 points). The results of Real-Time PCR analysis have shown a significant effect of the feed additive on the level of Firmicutes phylum on the skin. On the other hand, a variable level of the tested bacteria was shown depending on the location of the cages. The Firmicutes phylum and Lactobacillaceae family achieved the highest level in the top-window zone. However, in the case of the Actinobacteria phylum, the highest level was found at the top-door and middle-door zones. The obtained results suggest that the conditions in which animals live may affect the microbiota of their skin.

scholarly journals Growth Performance and Carcass Quality in Broiler Chickens Fed on Legume Seeds and Rapeseed Meal

Animals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 846 ◽  
Author(s):  
Jakub Biesek ◽  
Joanna Kuźniacka ◽  
Mirosław Banaszak ◽  
Sebastian Kaczmarek ◽  
Marek Adamski ◽  
...  
Keyword(s):  
Growth Performance ◽  
Soybean Meal ◽  
Faba Bean ◽  
Broiler Chickens ◽  
Rapeseed Meal ◽  
The Other ◽  
Control Group ◽  
Carcass Quality ◽  
Legume Seeds ◽  
Faba Beans

The aim of this study was to compare the growth performance parameters, carcass quality, and meat traits in broiler chickens fed on diets containing legume seeds and rapeseed meal as an alternative to soybean meal. In this study, 448 male ROSS 308 chicks were divided into subgroups: a control group (I) fed on soybean meal (SBM), and six experimental groups II—rapeseed meal (RSM); III—white lupin (WY); IV—yellow lupin (YL); V—narrow-leaved lupin NLL; VI—pea (Pe); and VII—faba bean (FB). After 42 days of rearing, 10 birds from each group were slaughtered and dissected. The control group was characterized by better growth performance compared to the other groups. In addition, the European Broiler Index was lower in each experimental group compared to the SBM group. A lower dressing percentage was found only in the NLL group. The muscle content in birds from the RSM and FB groups was significantly higher than in the other groups, but the fat content was lower. Meat from SBM group was characterized by the highest protein content, but a reduced content of fat and water in the muscles. The most similar results were found between the control group and the FB group receiving a diet based on faba beans. Furthermore, lupins had a similar effect on the carcass traits when used in the diets. The quality of meat in broilers fed on faba beans with the addition of potato protein and brewers’ yeast was similar to that of those fed on soybean meal, because the antinutrients were the lowest in faba bean seeds. Faba beans are proposed as a possible alternative source of protein in poultry diets. Other legume seeds should be analyzed in future studies.

scholarly journals Emotional Cognitive Regulation in University Students during Lockdown: A Comparative Analysis of Students from Spanish Universities

2021 ◽  
Vol 13 (12) ◽  
pp. 6946
Author(s):  
Mercedes Cuevas López ◽  
Inmaculada Ávalos Ruiz ◽  
Emilio Jesús Lizarte Simón
Keyword(s):  
Online Learning ◽  
University Students ◽  
Emotional Regulation ◽  
Adaptive Strategies ◽  
The Other ◽  
Housing Conditions ◽  
Gran Canaria ◽  
Self Blame ◽  
Cognitive Regulation ◽  
Spanish Universities

Studies focusing on strategies for the cognitive regulation of emotions are gaining importance due to the development and perpetuation of psychopathologies. The obligatory home confinement imposed in response to the COVID-19 pandemic has led to new virtual learning methodologies. Objective: Our objective aimed to analyze and compare the cognitive emotional regulation of students from universities on the Spanish mainland with that of students attending the Universidad de Las Palmas de Gran Canaria. Methods: An online Emotional Regulation Questionnaire was applied, together with a survey covering the students’ beliefs about the pandemic, including information about their housing conditions and beliefs about online learning. The study included a sample of 1030 university students. Results: On the mainland and at Las Palmas de Gran Canaria, the students most frequently used adaptive strategies. Three of the strategies were used in both groups but to different extents (Acceptance, Positive reappraisal, Putting into perspective), while the other strategies were used in both groups to the same extent (Refocusing on planning, Positive refocusing, Rumination, Blaming others, Catastrophizing, Self-blame). Meanwhile, the results were quite similar regarding the students’ housing conditions and beliefs about the pandemic and online learning.

scholarly journals The Effect of Dietary Halloysite Supplementation on the Performance of Broiler Chickens and Broiler House Environmental Parameters

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2040
Author(s):  
Małgorzata Nadziakiewicz ◽  
Marcin Wojciech Lis ◽  
Piotr Micek
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Environmental Parameters ◽  
Feed Consumption ◽  
Feed Additive ◽  
Feed Conversion ◽  
Daily Body Weight ◽  
Daily Water ◽  
Broiler House

The aim of the study was to determine the effect of supplementing broiler chickens’ diets with halloysite on daily body weight gain (BWG), feed conversion ratio (FCR), daily water consumption (DWC), and some broiler house hygiene parameters. The trial was conducted on 18,000 broiler chickens divided into two groups throughout the 42-day (D) rearing period. The birds were fed complete diets without (group C) or with halloysite addition (1%, group E) from D8 of rearing. No difference in the mortality rate was observed between groups C and E. Birds from group E had a tendency (0.05 < p < 0.10) towards a higher body weight at D32 and D42, a higher BWG, and a lower FCR compared to group C during the entire rearing period. Average DWC differed only in the finisher period, with a tendency towards lower overall DWC in group E. The concentration of ammonia in the air from D21 to D35 was increased more than 5-fold in group C but only 1.5-fold in group E. In conclusion, the use of halloysite as a feed additive in the diet of broiler chickens resulted in a reduction in feed consumption per unit of BWG and higher utilisation of crude protein, which led to improved environmental conditions.

scholarly journals Lysolecithin as feed additive enhances collagen expression and villus length in the jejunum of broiler chickens

2017 ◽  
Vol 96 (8) ◽  
pp. 2889-2898 ◽  
Author(s):  
D.L. Brautigan ◽  
R. Li ◽  
E. Kubicka ◽  
S.D. Turner ◽  
J.S. Garcia ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Feed Additive ◽  
Collagen Expression

Effects of Moringa Oleifera Leaf Polysaccharide on Growth Performance and Immune Response of Broiler Chickens

2021 ◽  
Author(s):  
Hosameldeen Mohamed Husien ◽  
JunJie Huang ◽  
WeiLong Peng ◽  
ShuMei Zheng ◽  
JinGui Li
Keyword(s):  
Immune Response ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Moringa Oleifera ◽  
The Body ◽  
Feed Consumption ◽  
Feed Additive ◽  
Control Group ◽  
High Dose ◽  
Tnf Α

Abstract Moringa oleifera (MO) is a widely used as the nutritious and non-traditional feed supplementation containing kinds of bioactive substances. However, the enhancement effect of Moringa oleifera leaf Polysaccharide (MOLP) as a feed additive in broilers growth performance and immunity remains unclear. In this study, MOLP was obtained by water extraction and alcohol precipitation method, then purified with Trichloroacetic acid (TCA) assay. Chickens were randomly divided into 4 groups, to receive different doses of MOLP (0, 0.1, 0.2, 0.4g/kg) in feed for 3 weeks. The body weight gain (BWG) and feed consumption were recorded for feed conversion ratio (FCR) and average daily feed intake (ADFI) calculation. Broiler chickens were sacrificed and sampled on day 14, 21, 28 (D 14, D 21, and D 28) respectively. Serological indicators, including total protein (TP), albumin (ALB), globulin (GLO), and creatinine (CREA) were detected. ELISA kits were applied for detecting the levels of immunoglobulin A (IgA), immunoglobulin G (IgG), interleukin-2 (IL-2), and tumor necrosis factor (TNF-α). From D 21 to D 28, the results showed that middle dose of MOLP significantly increased BWG and ADFI as well as liver and bursa indexes when compared with the control group. In addition, TP and GLO were also increased (P<0.05). All MOLP treatments enhanced the serum concentrations of IgG and IL-2 (P<0.01). Furthermore, results of quantitative RT-PCR showed that high dose of MOLP treatment significantly increased (P<0.001) the mRNA expression levels of IL-2 and TNF-α of chickens relative to the control group. In conclusion, the results showed that MOLP supplementation contributed to improve growth performance and immune response in broiler chickens, and MOLP could be considered as a promising feed additive.

Using beans (vicia faba) in a “barley beef” system for finishing bulls

1996 ◽  
Vol 1996 ◽  
pp. 125-125
Author(s):  
Duncan Pullar
Keyword(s):  
Vicia Faba ◽  
Rapeseed Meal ◽  
The Other ◽  
Wood Shavings ◽  
Bull Calves ◽  
Ad Libitum ◽  
Costs Of Production ◽  
Field Beans

Simplifying rations and using home grown ingredients can reduce costs of production and, provided productivity is maintained, increase profit. The objective of this experiment was to determine the performance of weaned suckled bull calves on a ration containing field beans (vicia faba), rolled barley, molasses and vitamins and minerals; the ad libitum straw intake was also examined.Twelve Limousin x (Hereford x Friesian) bull calves, 9 months old, were individually fed through two Callan-Broadbent doors, one for the concentrate ration and the other for chopped straw. Wood shavings were used for bedding. The two treatments, fed ad libitumfor 63 days were, barley/ rapeseed meal (B/RSM) and barley/ beans (B/E) and contained 153 ± 5.0 and 166 ± 8.4 g/kg DM CP and 12.6 ± 0.16 and 12.9 ± 0.17 MJ ME/ kg DM respectively.

Role of cardiac hypoxia in the pathogenesis of sudden death syndrome in broiler chickens – A metabolic and molecular study

2021 ◽  
Author(s):  
Pegah Safaei ◽  
Gholamhossein Khadjeh ◽  
Mohammad Reza Tabandeh ◽  
Keramat Asasi
Keyword(s):  
Sudden Death ◽  
Cardiac Muscle ◽  
Internal Control ◽  
Broiler Chickens ◽  
Sudden Death Syndrome ◽  
Pyruvate Dehydrogenase Kinase ◽  
Cardiac Insufficiency ◽  
Monocarboxylate Transporter ◽  
Pcr Analysis ◽  
Glucose Transporter 1

AbstractSudden death syndrome (SDS) is an economically important disorder in broiler chickens with unknown aetiology. The aim of the present study was to evaluate the metabolic and molecular alterations related to hypoxia in the myocardium of broiler chickens with SDS. Samples from the cardiac muscle of internal control broiler chickens (ICs) (n = 36) and chickens having died of SDS (n = 36) were obtained during the rearing period. The activities of lactate dehydrogenase (LDH) and creatine phosphokinase (CPK) and the concentration of lactate were measured in the cardiac tissue using available commercial kits. The expression of hypoxia-inducing factor 1α (HIF1α), glucose transporter 1 (GLUT1), pyruvate dehydrogenase kinase 4 (PDHK4) and monocarboxylate transporter 4 (MCT4) genes was determined in the myocardium by real-time PCR analysis. The results showed the elevation of lactate level and activities of LDH and CPK in the cardiac muscle of SDS-affected chickens compared with the IC birds (P < 0.05). The cardiac muscle expression of HIF1α, MCT4 and GLUT1 genes was increased, while the PDHK4 mRNA level was decreased in the SDS-affected group compared to those in the IC chickens (P < 0.05). Our results showed that metabolic remodelling associated with hypoxia in the cardiac tissues may have an important role in the pathogenesis of cardiac insufficiency and SDS in broiler chickens.

scholarly journals Effect of Prebiotics from Mannan Oligosaccharides and Fructo-oligosaccharides on Physio-biochemical Indices, Antioxidant and Oxidative Stability of Broiler Chicken Meat

2021 ◽  
Author(s):  
Avishek Biswas ◽  
Namit Mohan ◽  
Kapil Dev ◽  
N A Mir ◽  
Ashok Kumar Tiwari
Keyword(s):  
Oxidative Stability ◽  
Broiler Chickens ◽  
Control Diet ◽  
Feed Additive ◽  
Plate Count ◽  
Growth Promoter ◽  
Poultry Production ◽  
Gut Health ◽  
Biochemical Indices ◽  
Mannan Oligosaccharides

Abstract Antibiotics have revolutionized the intensive poultry production system as a feed additive by promoting growth, production and meat quality through improving gut health and reduction of sub-clinical infections during last five decades. However, currently, the usage of antibiotics in poultry production is under severe scientific and public scrutiny, because antibiotic growth promoter (AGP) has been linked to the possible development of antibiotic-resistant pathogens, which may pose a threat to human health. After European Union ban on in feed antibiotics as growth promoter in poultry, since 2006, prebiotics offer a potential substitute to in feed antibiotics. In this effort, the objective of this present study was to investigate the potentiality of prebiotics (mannan oligosaccharides-MOS and fructo-oligosaccharides-FOS) in replacement of antibiotic growth promoter and their relationship with physio-biochemical indices, antioxidant and oxidative stability and carcass traits of broiler chickens meat. 240 day-old broiler chicks (1 d) of uniform body weight were divided into 30 replicate groups having 8 birds in each. Six corn based dietary treatments were formulated viz. T1 (control diet), T2 (T1 + Bacitracin methylene di-salicylate @ 20 mg/kg diet), T3 (T1 + 0.1% MOS), T4 (T1 + 0.2% MOS), T5 (T1 + 0.1% FOS), and T6 (T1 + 0.2% FOS). Significant (P<0.05) increase in cut up part yields (%) and reduction in cholesterol and fat content in T4 (0.2 % MOS) group. The water holding capacity (WHC) and extract release volume (ERV) were increase (P<0.05) in 0.1 or 0.2 % MOS supplemented group. DPPH (1, 1-diphenyl-2-picrylhydrazy) was higher (P<0.05) and lipid oxidation (free fatty acid and thio-barbituric acid reactive substances) was lower (P<0.05) in T4 group. The standard plate count (SPC), staphylococcus and coliform counts were decreased (P<0.05) in T3 or T4 group. Thus, it can be concluded that mannan oligosaccharides (MOS) may be incorporated at 0.2% level in diet for improved physio-biochemical indices, antioxidant and oxidative stability and carcass characteristics of broiler chickens meat and it may be suitable replacer of antibiotic growth promoter.

scholarly journals Q&A on the Paper of Kurukulasuriya et al. (2017) on IBD Vaccine Efficacy Against a Canadian Variant IBDV Strain in Broiler Chickens

2018 ◽  
Vol 3 (1) ◽  
Keyword(s):  
Antibody Titer ◽  
Vaccine Efficacy ◽  
Broiler Chickens ◽  
Live Vaccine ◽  
The Other ◽  
In Ovo ◽  
Challenge Strain ◽  
Vector Vaccine ◽  
The Mean ◽  
Modified Live Vaccine

Kurukulasuriya, et al. (2017) are reporting the efficacy of two IBD vaccines against an early (6 days post-hatch) challenge with a variant Canadian IBDV strain in broilers. A modified live vaccine(UNIVAX BD) administered by SQ route at 1 dayof-age delayed infection whereas an HVT-IBD vector vaccine (VAXXITEK HVT+IBD) administered in ovodid not protect. Furthermore, the authors suggested that the HVT-IBD vector induced immunosuppression responsible for an earlier IBDV challenge strain replication in the bursa. The data presented in the paper showed no evidence of VAXXITEK HVT+IBD vaccine take since the mean IBD ELISA antibody titer at D35 in the vaccinated/non-challenged group was not significantly different from that of the non-vaccinated group. It wasmuch lower than the expected one based on previous studies performed in the same conditions : in ovo vaccination of broilers [1,2]. Since there is no evidence of vaccine take, the other potential effects (immunosuppression and earlier IBDV replication in the bursa) observed in that group cannot be attributed to the vaccine. Since its launch in 2006 in Brazil, VAXXITEK HVT+IBD has been licensed in more than 75 countries and more than 80 billion birds have been vaccinated. VAXXITEK HVT+IBD is protecting against a wide variety of IBDV strains including the classical, the very virulent and different variant strains. To our knowledge, noabsence of efficacy nor bursa depletions have been so far officially reported as long as the vaccine has been administered properlyto healthy embryonated eggs or to healthy one-day-old chicks.

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