|
Summary An experiment was conducted to examine the effect of microbial phytase associated with different nonphytate phosphorus (NPP) levels on performance and egg quality parameters of laying quails from 8-16 weeks of age. A total of 196 Japanese...... Mehr Effects of different angled perches on leg disorders in broilers Summary Perching behavior is common in birds, however, perches are not provided in commercial broiler flocks. The main purpose of this study was to determine the relationship between incidence of leg deformations and various perch uses in litterand...... Mehr Effect of treated field pea ( Pisum sativum L. cv Spirale ) as substitute for soybean extracted meal in a wheat middlings-based diet on egg production and quality of early laying brown hens Summary This study was designed to establish the effect on laying performance and egg quality resulting from substitution of soybean meal with dehulled-micronized peas ( L. cv Spirale ) in the diet of early phase brown laying hens. Isa Brown...... Mehr Stunning effectiveness of broiler chickens using a two-phase stunner: pulsed direct current followed by sine wave alternating current Summary Stunning efficiency of male and female broiler chickens was analysed in response to the two-phase Simmons step-up stunner. In Phase I, a pulsed DC of 550 Hz is appliedin a shallow waterbath. This is immediately followed by Phase II,...... Mehr Fractional apoB-VLDL hepatic synthesis rate in Muscovy and Pekin ducks fed ad libitum Summary Muscovy duck has a higher ability to develop hepatic steatosis than Pekin duck. This could result from a lower ability of liver to secrete lipids and lipoproteins. To test this hypothesis, we measured the liver apoB-VLDL secretion in...... Mehr Effects of dietary energy density and coarsely ground maize supplementation on growth performance, carcass traits and meat quality of capons Summary This research study was carried out to evaluate the effects of feeding diets containing two levels of metabolizable energy and the effects of adding ground maize in the last month of fattening on capon growth and carcass characteristics....... Mehr Effects of Euphorbia hirta and virginiamycin supplementation tothe diet on performance, digestibility, and intestinal microflora population in broiler chickens Summary This experiment was conducted to investigate the effects of supplementing various dosages of powderon performance, digestibility, and ileal microflora populationin broiler chickens. E. hirta was supplemented at inclusion rates of 2.5...... Mehr Experimental studies on the effects of different litter moisture contents and exposure time to wet litter on development and severity of foot pad dermatitis in young fattening turkeys Summary This experimental study aimed to find out the critical moisture content of litter which results in higher development and severity of FPD in young fattening turkeys. Four groups of two weeks old ♀ turkeys were reared on dry wood...... Mehr A proposal to apply operative temperature for the evaluation of thermal conditions in the broiler living zone Summary The paper presents results of temperature measurements at the level of birds’ heads, at the level of bedding under the birds, and in areas not occupied by birds, as well as measurements of optimal air temperature and the distribution of the...... Mehr Relationships between feather score and egg production and feed consumption of different layer hybrids kept in conventional cages Summary This study assessed feather scores, egg production and feed consumption of three local and two imported layer breeds. The relationships between feather score and egg production and feed consumption were evaluated for the total study...... Mehr Egg quality of three laying hen genotypes kept in conventional cages and on litter Summary The effects of housing system (conventional cages, litter), genotype (ISA Brown, Hisex Brown and Moravia BSL) and age on egg quality parameters were evaluated. Eggs were sampled three times in the laying period at the age 20 to 24 weeks, 38...... Mehr National and international recommendations for the energy and nutrient supply of poultry Summary The present review article discusses the energy and nutrient supply of laying hens based on the recommendations of the Society for Nutrition Physiology, international scientific associations (including the Polish Academy of Sciences) and...... Mehr Effects of selected herbs and essential oils, and their active components on feed intake and performance of broilers - a review Summary Since the EU banned antibiotic growth promoters in broiler nutrition, much research has been conducted to explore the use of possible effective substitutes. One possibility is the application of herbs or their essential oils (EO). Numerous...... Mehr Inhibition of adrenal steroidogenesis and heat shock protein 70 induction in neonatally feed restricted broiler chickens under heat stress condition Summary This study was conducted to determine the roles of plasma corticosterone concentration (CORT) and heat shock protein 70 (Hsp70) expression in the acquisition of thermotolerance in broiler chickens subjected to neonatal feed...... Mehr Fatty acid profile of breast muscle of broiler chickens fed diets with different levels of selenium and vitamin E* *The experiment was partly financed by EUREKA project No. E!4478 Summary An experiment with broiler chickens was established to verify an assumption that an increased content of antioxidants in a diet affects the ratio of unsaturated fatty acids in muscle tissues of broiler chickens. The fatty acid profile was...... Mehr Body weight and body measurements of male and female Pekin ducks obtained from breeder flocks of different age Summary In total, 144 Pekin ducklings (72 male and 72 female) obtained from breeder flocks of different ages (37 and 135 wks) were used to evaluate body weight and body measurements until 42 days of life. Ducklings were leg-banded for individual...... Mehr Stress response in feed restricted domestic fowl with dietary supplementation of several additives that act against stress Summary The purpose of this study was to analyze the effects of a feed restriction and several dietary additives that affect stress response on the fluctuating asymmetry of 4 traits (toe length, leg width, leg length, and wing length), heterophil...... Mehr Neonate pecking preferences and feather pecking in domestic chickens: investigating the ‘changed template’ hypothesis Summary Domestic chickens from lines selected for low (LFP) or high (HFP) levels of feather pecking (FP) were reared in 14 bird groups and pecking to various forms presented on a computer screen was recorded at 2 weeks of age. HFP chickens...... Mehr The effect of low chloride and high bicarbonate diets on growth, blood parameters, and pulmonary hypertensive response in broiler chickens reared at high altitude Summary An experiment was conducted in order to examine the effectsof low- chloride and high- bicarbonate diets on growth performance, blood parameters, and pulmonary hypertensive response in broiler chickens. One hundred and eighty day-old male...... Mehr Effect of physical activity of laying hens on egg quality Summary The experiment was performed to study the combination of effects of diets and physical body activity (training) on laying hens’ performance, egg weight, yolk proportion and fatty acids profiles. Results of present experiment showthat...... Mehr mehr
|
Band 76 | Januar '12
© 2011 Verlag Eugen Ulmer, Stuttgart | Kontakt: info@ulmer.de | Webimpressum | Rechtliche Hinweise
Webseite gestaltet mit 
ULMER CMS | Alle Infos unter http://cms.ulmer.de