scholarly journals Feather loss in laying hens

2006 ◽  
Vol 60 (1-2) ◽  
pp. 107-114
Author(s):  
Slavca Hristov ◽  
Sreten Mitrovic ◽  
Mirjana Todorovic ◽  
Vladan Djermanovic ◽  
Ivica Cvetkovic
Keyword(s):  
Sequence Analysis ◽  
Laying Hens ◽  
The Other ◽  
Ventral Part ◽  
Dorsal Part ◽  
Detailed Consideration ◽  
Video Recordings ◽  
One Year ◽  
The One ◽  
Comparison Of The Results

The paper examined the incidence of different forms of feather loss and cannibalism in laying hens aged 74 weeks following moulting and in laying hens following exploitation for a period of one year. The forms of feather loss were considered in detail through a repeated examination of video recordings and they were sorted according to localization - to feather loss on the ventral part of the neck, on the dorsal part of the neck, and on the back between the wings. Feather loss on the ventral part of the neck was established in 47.9% hens, and in the dorsal part in 16.77% hens of the 167 laying hens aged 74 weeks following moulting. The group of 129 laying hens that were observed following one-year exploitation exhibited considerably more frequent feather loss, in 96.90% hens it was localized on the ventral part of the neck, in 60.47% hens on the dorsal part of the neck, and in 20.16% hens it was localized on the back between the wings. A comparison of the results of the incidence of co localized forms of feather loss in the one and the other group of laying hens using the t-test showed statistically very significant differences. A detailed consideration of the video recordings using the method of sequence analysis did not reveal any cannibalism in either group of laying hens.

scholarly journals KVALITET JAJA ORGANSKIH KOKOŠI NOSILJA U RAZLIČITIM FAZAMA PROIZVODNOG CIKLUSA

2021 ◽  
Author(s):  
Simeon Rakonjac ◽  
◽  
Snežana Bogosavljevic-Boškovic ◽  
Vladimir Doskovic ◽  
Miloš Lukic ◽  
...  
Keyword(s):  
Laying Hens ◽  
Breaking Strength ◽  
Shape Index ◽  
The Other ◽  
Production Cycle ◽  
Lower Weight ◽  
Eggshell Quality ◽  
One Year ◽  
The One

The aim of this study was to determine the eggs and eggshell quality of organic laying hens at different stages of the one-year production cycle. Based on the results of these studies, it can be concluded that the organic eggs of 24-week-old Isa Brown layers had lower weight and a higher shape index than the eggs of 48- and 72-week-old hens. On the other hand, the eggs of 24- and 48-week-old laying hens had a higher albumen height and Haugh units, and less colored yolks compared to the eggs of 72-week-old hens. In terms of eggshell quality, 24-week-old hen eggs had a higher proportion, thickness and breaking strength and less shell deformation compared to 48- and 72-week-old hen eggs.

From Scarcity to Abundance: Achieving Quality-Assured Mass Higher Education

2011 ◽  
Vol 15 (2) ◽  
Author(s):  
Peter P. Smith
Keyword(s):  
Higher Education ◽  
Knowledge Economy ◽  
Good Practice ◽  
The United States ◽  
The Other ◽  
Secondary System ◽  
Mass Higher Education ◽  
Post Secondary ◽  
One Year ◽  
The One

The United States is in a bind. On the one hand, we need millions of additional citizens with at least one year of successful post-secondary experience to adapt to the knowledge economy. Both the Gates and Lumina Foundations, and our President, have championed this goal in different ways. On the other hand, we have a post-secondary system that is trapped between rising costs and stagnant effectiveness, seemingly unable to respond effectively to this challenge. This paper analyzes several aspects of this problem, describes changes in the society that create the basis for solutions, and offers several examples from Kaplan University of emerging practice that suggests what good practice might look like in a world where quality-assured mass higher education is the norm.

scholarly journals Modeling of solid sediment transport in mountain rivers

2020 ◽  
Vol 175 ◽  
pp. 12002 ◽  
Author(s):  
Issam Boukhanef ◽  
Anna Khadzhidi ◽  
Lyudmila Kravchenko ◽  
Zeroual Ayoub ◽  
Kastali Abdennour
Keyword(s):  
Sediment Transport ◽  
Fine Particles ◽  
Agricultural Soils ◽  
Suspended Sediments ◽  
High Water ◽  
The Other ◽  
Concentration Data ◽  
Solid Transport ◽  
One Year ◽  
The One

In Algeria, the problems of erosion and sediment transport are critical, since they have the most dramatic consequences of the degradation of agricultural soils on the one hand and the siltation of the dam on the other .The sediment transport in the Algerian basins is very important especially during the periods of floods, It is in this sense that this study, which consists of estimating the sediment transport in suspension and determining the models of relation linking the liquid discharge and the sediment discharge in order to estimate the solid transport in the absence of suspended sediments concentration data at the Sidi Akkacha station at the outlet of the basin of Oued Allala which is subject to a high water erosion, it degrades from one year to the other under the effect of this phenomenon especially during the floods which drain high amounts of fine particles exceeding in general, the concentration of 150 g/l, the results obtained from the application of the models are very encouraging since the correlation between liquid and solid discharge exceeds 80 %.

scholarly journals Lesión miocárdica perioperatoria en cirugía no cardiaca

2020 ◽  
Vol 12 (2) ◽  
pp. 3
Author(s):  
Daniel Paz Martín
Keyword(s):  
Cardiac Surgery ◽  
Cardiovascular Risk ◽  
Myocardial Injury ◽  
The Other ◽  
High Cardiovascular Risk ◽  
One Year ◽  
The One

La lesión miocárdica perioperatoria (LMP) en cirugía no cardiaca es una complicación, a menudo no identificada, que se relaciona con un aumento de mortalidad a 30 días. Los objetivos del presente trabajo son por una parte, conocer la incidencia de LMP, que se encuentra entorno al 16% en pacientes de alto riesgo cardiovascular. Por otra, evaluar su relación con la mortalidad a 30 días y un año; la presencia de LMP se asocia a una mayor mortalidad. ABSTRACT Perioperative myocardial injury in non-cardiac surgery Perioperative myocardial injury (PMI) in non-cardiac surgery is a complication, often not identified, that is related to an increase in mortality at 30 days. The objectives of this study are, on the one hand, to know the incidence of PMI, which is around 16% in patients with a high cardiovascular risk. On the other, evaluate its relationship with mortality at 30 days and one year; the presence of PMI is associated with increased mortality.

scholarly journals Degrees of Permeability

2020 ◽  
Vol 38 (1) ◽  
pp. 88-104 ◽  
Author(s):  
Luisa T. Schneider
Keyword(s):  
Everyday Life ◽  
The Other ◽  
Social Standing ◽  
Urban Livelihoods ◽  
Embodied Experiences ◽  
Total Institutions ◽  
Nuanced Understanding ◽  
One Year ◽  
The One ◽  
Relationship Of

This article deconstructs a binary that has arisen between prisons as, on the one hand, ‘total institutions’ of exclusion and, on the other, ‘carceral continuums’ that incorporate marginalized urban livelihoods. The experiences of four inmates at Pademba Road, Freetown’s male prison – which accommodates inmates with sentences from one year to life – illustrate that prisons belong in neither camp. Instead, inmates’ unique responses to their imprisonment show that both a prison’s continuity and its exclusionary mechanism are situational and gendered as crime, social standing, capital and agency coalesce. Following Michel de Certeau’s examination of people’s reappropriations of culture in everyday life, this article analyses how inmates’ tactics to reinforce and bend prison walls work to either strengthen or undermine the carceral system’s strategies and influence the prison’s permeability. Inmates’ embodied experiences allow for a nuanced understanding of the inside/outside relationship of imprisonment and of the space between mobility and stasis, subjugation, embrace and resistance.

Study of a pair of DZ twins — the one affected by mongoloidism and trisomy-21, and the other normal with transitory chimerism of 21-trisomic cells

1966 ◽  
Vol 15 (2) ◽  
pp. 208-211 ◽  
Author(s):  
L. Massimo ◽  
G. Gemme ◽  
M. G. Vianello ◽  
B. Verri
Keyword(s):  
Blood Transfusion ◽  
Trisomy 21 ◽  
Normal Chromosome ◽  
The Other ◽  
Reproductive Capacity ◽  
Fetal Blood ◽  
Progressive Loss ◽  
One Year ◽  
The One

SUMMARYTwo DZ monoplacental twins are reported, one affected by mongolism and the other normal. Chromosome examination in the former indicated trisomy 21, while the latter presented a mosaicism consisting, at the age of 13 days, in 70% normal and 30% 21-trisomic cells; at the age of 5 months, in 95% normal and 5% trisomic cells; while, at the age of one year, all the cells appeared to be normal.The possibility of mosaicism, and, according to clinical and hematological findings, that of feto-fetal blood transfusion are excluded.The hypothesis is suggested of a progressive loss of the reproductive capacity of « chimaera » of abnormal lymphocytes.

New contribution to the survey of the theory of the acrotony on the branch of one year grapevine: I - Investigation in the Tunisian vineyard

OENO One ◽  
2000 ◽  
Vol 34 (3) ◽  
pp. 121
Author(s):  
Béchir Ezzili ◽  
M. Bejaoui
Keyword(s):  
Apical Part ◽  
The Other ◽  
North African ◽  
The North ◽  
Result Show ◽  
The Difference ◽  
One Year ◽  
The One ◽  
New Hypothesis ◽  
Test Result

<p style="text-align: justify;">Research in the conduct mode of grapevines other than the north African goblet incited us to make an investigation on the no bursting on table vine canes and to study if the vestigial dormancy is equivalent to acrotony phenomenon. Results of this survey clearly show that this phenomenon varies from one year to the other and that there is a negative interrelationship between the percentage of buds no bursted and the diameter of the basis of the cane on the one hand and of the top on the other hand. The difference in diameters of the basis and apical part is weakly correlated with the percentage of buds no bursted. As a result we concluded that at the level of the cane, the percentage of buds no bursted doesn't only depend on the diameter of the cane but also on the fixing of this one on the carrier axis. The bibliographic survey puts in exergue the low temperature role. We tried to dissociate the acrotony phenomenon and the vestigial dormancy. Test result show that the long cane fixing at the temperature of 4°C during 10 days removes partially or completely the vestigial dormancy but the phenomenon of the acrotony persists. We examined the qualitative answers of the investigation. In Tunisia, on long canes of Muscatel of Italy, a certain percentage of one year old presents both the acrotony (80 p. cent) and the basitony phenomena (8 p. cent) in 1995. The discussion of results of the investigation allowed us to give out a new hypothesis of work concerning the phenomenon which we will to verify.</p>

CONSUMER RISK IN THE ONLINE SHOPPING PROCESS IN 2017-2019

2020 ◽  
Vol 21 (3) ◽  
pp. 133-146
Author(s):  
Martyna Kostrzewska ◽  
Daria Emilia Wrukowska
Keyword(s):  
Risk Perception ◽  
Online Shopping ◽  
Distribution Channel ◽  
The Other ◽  
Delivery Problem ◽  
Consumer Risk ◽  
Risk Areas ◽  
One Year ◽  
The One ◽  
Over Time

This paper presents results from two studies of risks connected with online shopping which were conducted in 2017 and 2018 and 2019. The studies were carried out on a group of 400, 415 and 343 respondents, respectively, using paper questionnaires. The one year gap between the questionnaires allowed conclusions to be drawn not only about the relevance of factors shaping risk perception but also about the evolution of such perception over time. On the one hand, the studies revealed increased trust towards the online distribution channel, while on the other hand they showed the increased importance of risk areas such as express and punctual delivery, problem-free contact with the seller, quick solution of technical and logistical problems, recognition of complaints and delivery of correct products

scholarly journals Biochemical and Mutational Studies of the Bacillus cereus CECT 5050T Formamidase Support the Existence of a C-E-E-K Tetrad in Several Members of the Nitrilase Superfamily

2011 ◽  
Vol 77 (16) ◽  
pp. 5761-5769 ◽  
Author(s):  
Pablo Soriano-Maldonado ◽  
Ana Isabel Martínez-Gómez ◽  
Montserrat Andújar-Sánchez ◽  
José L. Neira ◽  
Josefa María Clemente-Jiménez ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Sequence Analysis ◽  
Bacillus Cereus ◽  
The Other ◽  
Human Pathogens ◽  
Purification And Characterization ◽  
Content Type ◽  
The One ◽  
Derivatives Of

ABSTRACTFormamidases (EC 3.5.1.49) are poorly characterized proteins. In spite of this scarce knowledge, ammonia has been described as playing a central role in the pathogenesis of human pathogens such asHelicobacter pylori, for which formamidase has been shown to participate in the nitrogen metabolic pathway. Sequence analysis has revealed that at least two different groups of formamidases are classified as EC 3.5.1.49: on the one hand, the derivatives of the FmdA-AmdA superfamily, which are the best studied to date, and on the other hand, the derivatives ofHelicobacter pyloriAmiF. Here we present the cloning, purification, and characterization of a recombinant formamidase fromBacillus cereusCECT 5050T (BceAmiF), the second member of the AmiF subfamily to be characterized, showing new features of the enzyme further supporting its relationship with aliphatic amidases. We also present homology modeling-based mutational studies confirming the importance of the Glu140 and Tyr191 residues in the enzymatic activities of the AmiF family. Moreover, we can conclude that a second glutamate residue is critical in several members of the nitrilase superfamily, meaning that what has consistently been identified as a C-E-K triad is in fact a C-E-E-K tetrad.

Some water and dry-matter relationships in the food and droppings of laying hens

1958 ◽  
Vol 51 (2) ◽  
pp. 237-242 ◽  
Author(s):  
C. Tyler
Keyword(s):  
Water Intake ◽  
Dry Matter ◽  
Laying Hens ◽  
Time Of Day ◽  
The Other ◽  
Typical Pattern ◽  
Water Excretion ◽  
Water Output ◽  
The One ◽  
Metabolic Water

1. An experiment with one non-laying and four laying hens was carried out. Food and water consumption was measured hourly from 06.00 to 22.00 hr. and in the same period the exact time of each excretion was noted. Determinations of water and dry matter were made on each separate excretion.2. Each bird showed a typical pattern of behaviour in relation to the time of day when it ate food and drank water. For any one bird, variations of this pattern from day to day were small.3. For each bird there was a highly significant relationship between water intake and temperature on the one hand, and water excretion via droppings and eggs on the other. Water intake, however, had a far greater influence than had temperature on water output.4. Calculations showed that, despite errors caused by not knowing the amount of metabolic water produced, the excretion from the lungs varied greatly from bird to bird on constant intakes of water and also in the same bird at different intakes.

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