نتایج جستجو برای: hygienic factors

تعداد نتایج: 1081429  

Journal: :Journal of applied animal welfare science : JAAWS 2005
T Bas Rodenburg Frank A M Tuyttens Bart Sonck Koen De Reu Lieve Herman Johan Zoons

The aim of this review was to compare welfare, health, and hygienic status of laying hens housed in furnished cages and in alternative systems. In alternative systems (floor housing and aviaries), birds have more freedom of movement and a more complex environment than in furnished cages. However, housing birds in much larger flocks in alternative systems leads to an increased risk of feather-pe...

Journal: :Biology letters 2015
Cecile Sarabian Andrew J J MacIntosh

Parasites are ubiquitous in nature and can be costly to animal fitness, so hosts have evolved behavioural counter-strategies to mitigate infection risk. We investigated feeding-related infection-avoidance strategies in Japanese macaques via field-experimentation and observation. We first examined risk sensitivity during foraging tasks involving faecally contaminated or debris-covered food items...

2016
Hasan Al Toufailia Denise A Alves José M S Bento Luis C Marchini Francis L W Ratnieks

Social insects have many defence mechanisms against pests and pathogens. One of these is hygienic behaviour, which has been studied in detail in the honey bee, Apis mellifera Hygienic honey bee workers remove dead and diseased larvae and pupae from sealed brood cells, thereby reducing disease transfer within the colony. Stingless bees, Meliponini, also rear broods in sealed cells. We investigat...

Journal: :Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver 2004
F Cataldo J Simporè P Greco D Ilboudo S Musumeci

BACKGROUND In Burkina Faso, in contrast with high rates of Helicobacter pylori infection from an early age, the prevalence of H. pylori-associated diseases (ulcer and gastric cancer) is low. AIMS To look for the prevalence of H. pylori in healthy natives of Burkina Faso, both children and adults. METHODS We studied the prevalence of H. pylori infection in 258 healthy natives of Burkina Faso...

Journal: :Genetics and molecular research : GMR 2009
K P Gramacho L S Gonçalves

We examined the sequence, order or steps of hygienic behavior (HB) from pin-killed pupae until the removal of them by the bees. We conducted our study with four colonies of Apis mellifera carnica in Germany and made four repetitions. The pin-killing method was used for evaluation of the HB of bees. The data were collected every 2 h after perforation, totaling 13 observations. Additionally, for ...

Journal: :Genetics and molecular research : GMR 2013
D Nicodemo D De Jong R H N Couto E B Malheiros

Honey bees use propolis to defend against invaders and disease organisms. As some colonies produce much more propolis than others, we investigated whether propolis collecting is associated with disease resistance traits, including hygienic behavior and resistance to the parasitic bee mite, Varroa destructor. The three highest (HP) and three lowest propolis-producing (LP) colonies among 36 Afric...

2005
SH Dowlatshahi

In Iran and the countries of the Eastern Mediterranean Region, bread has always been considered as the staple food of choice. Because of having high quantities of minerals and vitamins in bread, the hygienic condition of its production is of prime importance. This cross-sectional study was conducted in 302 bakeries in Kerman city, Kerman Province, Iran, from April 2004 to March 2005. Variables ...

Journal: : 2022

Today, the methodological basis of disease pre­vention among various categories population, including students, is an innovative area medical science and health care practice, namely medicine borderline conditions. The development a system prenosological diagnosis pathological conditions in young students their hygienic correction for prevention are important both from scientific practical poin...

Journal: :The Journal of experimental biology 2012
Caspar Schöning Sebastian Gisder Sven Geiselhardt Ivonne Kretschmann Kaspar Bienefeld Monika Hilker Elke Genersch

The ectoparasitic mite Varroa destructor and honey bee pathogenic viruses have been implicated in the recent demise of honey bee colonies. Several studies have shown that the combination of V. destructor and deformed wing virus (DWV) poses an especially serious threat to honey bee health. Mites transmitting virulent forms of DWV may cause fatal DWV infections in the developing bee, while pupae ...

Journal: :International Journal of Advanced Science and Engineering 2019

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