Poultry red mite (Dermanyssus gallinae) infestation:A broad impact parasitological disease that still remains a significant challenge for the egg-laying industry in Europe

Abstract The poultry red mite, Dermanyssus gallinae, has been described for decades as a threat to the egg production industry, posing serious animal health and welfare concerns, adversely affecting productivity, and impacting public health. Research activities dedicated to controlling this parasite have increased significantly. Their veterinary and human medical impact, more particularly their role as a disease vector, is better understood. Nevertheless, red mite infestation remains a serious concern, particularly in Europe, where the prevalence of red mites is expected to increase, as a result of recent hen husbandry legislation changes, increased acaricide resistance, climate warming, and the lack of a sustainable approach to control infestations. The main objective of the current work was to review the factors contributing to this growing threat and to discuss their recent development in Europe. We conclude that effective and sustainable treatment approach to control poultry red mite infestation is urgently required, included integrated pest management

Influence of moisture content on physical properties and some grinding features of wheat variety Muszelka

W pracy przedstawiono wyniki badań wpływu wilgotności pszenicy na właściwości fizyczne ziarna i energochłonność procesu rozdrabniania. Badaniom poddano odmianę pszenicy ozimej Muszelka. Przed doświadczeniem określono wilgotność, a następnie ziarno doprowadzono do pięciu poziomów wilgotności: 8, 10, 12, 14 i 16%. Wyznaczono maksymalną siłę cięcia ziarna i pracę cięcia oraz parametry procesu rozdrabniania. Przeprowadzona analiza wariancji wykazała istotne różnice w wartości badanych parametrów dla poszczególnych poziomów wilgotności. Istotne statystycznie powiązania badanych cech z wilgotnością ziarna opisano równaniami regresji.The paper presents the results of a study on the influence of wheat moisture on some physical properties and grinding energy consumption. Winter wheat cultivar Muszelka was used in the research. Prior to the experiments, moisture of wheat was determined. The kernels were then tempered to achieve five distinct water levels i.e. 8, 10, 12, 14 and 16%. The maximum shear force and shear energy absorption as well as some parameters of grinding were determined. Analysis of the experiment results showed significant dependencies between moisture and physical properties as well as grinding features. Significant differences between analysed parameters at different moisture levels were confirmed. Some relevant relations were described by means of regression equations

Comparison of statistical methods employed to examine the impact of nitrogen fertilisation on strength characteristics of rye grain

W pracy zostaną przedstawione dwie różne metody statystyczne do oceny wpływu różnych dawek nawożenia azotem na wybrane cechy wytrzymałościowe ziarna żyta. Pierwsza metoda jest tradycyjną metodą analizy wariancji, natomiast druga jest niestandardową metodą, którą stosuje się do oceny mocy preparatu testowego względem preparatu standardowego. Porównania tych metod dokonamy dla cech fizycznych ziarna żyta odmiany Amilo i Esprit.The paper will present two different statistical methods used to assess the impact of different nitrogen fertilisation doses on selected strength characteristics of rye grain. The first method is a conventional variance analysis method, while the other is a non-standard method used to evaluate the power of test preparation compared to standard preparation. Comparison of these methods will be carried out for physical properties of wheat grain (Amilo and Esprit varieties)