Results 111 to 120 of about 100,197 (349)
Effect of Heat Stress on Laying and Non-Laying Hens
Poultry Science, 1971 Abstract INTRODUCTION A REVIEW of the literature indicates that comparisons between laying and non-laying hens under heat stress conditions are very limited. Huston et al. (1957) indicated that at high environmental temperature 32.2°C. (90°F.), nonlayers had 0.4°C. (0.7°F.) higher body temperature than layers, which was highly significant.
M. A. Boone, Brenna L. Hughes
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Biokompatible Mauser bei Legehennen [PDF]
From an ethical point of view a longer life for laying hens is desired. Then, hens can be used for a longer period and less male chicks would have to be killed at the age of one day. In large flocks of laying hens moulting has to be induced to prevent
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Food Safety and Health, EarlyView.The findings of this study raised serious concerns about egg handling, storage and microbial safety in local markets of Pakistan. It was concluded that the eggs available in Lahore markets exhibited significant deviations from USDA quality standards, posing potential health risks. ABSTRACT Eggs are considered a highly nutritious food in the human diet,
Ayesha Noor‐ul‐Ain +3 more
wiley +1 more source
Bioavailability of Fluorine in Sepiolite for Laying Hens
Poultry Science, 1990 The purpose of the present work was to compare the bioavailability of structural fluorine contained in sepiolite and in sodium fluoride for laying hens. Three hundred 27-wk-old laying hens were fed one of three diets: 1) a control based on corn, barley, and soybean meal containing 21 mg/kg of fluorine; 2) a sepiolite diet in which 2% sepiolite replaced
Nogareda, C. +5 more
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Nest use is influenced by the positions of nests and drinkers in aviaries [PDF]
, 2017 The influence of the nest location and the placement of nipple drinkers on nest use by laying hens in a commercial aviary was assessed. Twenty pens in a laying hen house were equipped with the same commercial aviary system, but the pens differed in the ...
Fröhlich, E. K. F. +3 more
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Journal of International Development, EarlyView.ABSTRACT Field visits are common phenomena with non‐governmental organisations in Uganda. During these visits, Ugandan national staff guide visitors on series of meetings and interactions in the field. Following an actor‐oriented approach and drawing on ethnographic data on 14 field visits, this paper understands the field visit as a microcosm for the ...
Caspar Edward Swinkels
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Comparison of two Different Breeding Systems of Laying Hens in Relation to Egg Shell Quality
Scientific Papers Animal Science and Biotechnologies, 2023 The aim of work was to follow up and statistically evaluate the selected quality indicators of egg shell according to two different breeding systems and different age of laying hens.
Mária Angelovičová +3 more
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Dietary Sodium for Laying Hens
Poultry Science, 1977 Dietary sodium requirements of laying hens in open type and evaporatively cooled housing were determined to be 0.126 and 0.145% of the diet, respectively. The lowest level of 0.04% sodium supported average rates of production of 49.1 and 60.3% in the two houses for the 28 weeks of the study.
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Experiments with laying hens [PDF]
, 1915 Cover title.Mode of access ...
Buss, W. J.
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The Journal of Humanistic Counseling, EarlyView.ABSTRACT This study explores the experiences of international students in the United States who come from countries that have been, or are being, affected by catastrophic events. The aim of the study is to understand the challenges such students face and to formulate supportive strategies that address these challenges.
Zubeyde Akpakir +1 more
wiley +1 more source