The influence of Dermanyssus gallinae and different lighting regimens on selected blood proteins, corticosterone levels and egg production in layer hens
نویسندگان
چکیده
منابع مشابه
Immunological effects and productivity variation of red mite (Dermanyssus gallinae) on laying hens- implications for egg production and quality
Red mite (Dermanyssus gallinae; De Geer, 1778) is currently one of the most detrimental ectoparasites in laying birds across several countries. Symptoms of D. gallinae infestation include reduction in production, poor egg quality, increased mortality and also a compromise to welfare. Feeding on its host for only short periods of time, the red mite spends the vast proportion of its short life-cy...
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this study investigated the effects of manipulating the cognitive complexity of tasks along +/- few elements and the time limits on l2 learners writing performance. to conduct the study, 60 iranian efl learners with two levels of proficiency, low and high intermediate, were selected and assigned to three groups based on the time devoted to task completion. the participants performed both a simp...
15 صفحه اول: the effect of sericin levels (silk glue protein) on rate of in vitro maturation, fertilization and culture of sheep oocytes
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The Effects of Different Levels of Grass ClippingWaste on Performance, Egg Traits and Blood Parameters of Laying Hens
In this experiment 144 Hy-line (W36) laying hens, 65 to 77 weeks of age were separated into 4 treatments with 3 replicates (12 birds per replicate) in a completely randomized design experiment. The grass clipping wastes incorporated into a complete formulated layer diet, consisting on a corn and soybean based diet, were 0, 1.5, 3.0 and 4.5% in 1 to 4 experimental groups. The results showed that...
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abstract this quasi-experimental study was aimed at examining the impact of storyline complexity on the grammatical accuracy and complexity of advanced and intermediate efl learners. a total of 65 advanced and intermediate efl learners were selected from iran language institute (ili). an intact group including 35 intermediate participants and another intact group with 30 advanced participants ...
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ژورنال
عنوان ژورنال: Veterinary Research Communications
سال: 2019
ISSN: 0165-7380,1573-7446
DOI: 10.1007/s11259-018-9743-z