Results 91 to 100 of about 149,961 (158)
Poultry Science, 1935 Abstract KENTUCKY marls or calcareous clays are usually soft, calcareous-magnesian shales or soft, clay-containing magnesian limestone which breaks down on weathering into finely divided particles. In recent years marl has been used extensively because of its cheapness and easy accessibility, as a source of lime for soils.
G. Davis Buckner +2 more
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Effects of feeding diets varying in nutrient density to Hy-Line W-36 laying hens on production performance and profitability [PDF]
, 2011 An experiment was conducted with 480 Hy-Line W-36 laying hens to determine whether feeding diets that varied in nutrient density would affect long-term egg production performance.
dePersio, Suzette A.
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Iron metabolism in the laying hen [PDF]
Biochemical Journal, 1954 W N, RAMSAY, E A, CAMPBELL
openaire +2 more sources
Methodologies for assessing domestic hens' preferences for sounds [PDF]
, 2011 A series of five experiments assessed the effects of different sounds on the choice behaviour of domestic hens and chicks using a range of procedures. The first experiment compared the effects of white noise on hens’ performance under multiple-concurrent
Jones, Amy Rebecca
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Influence of nest site on the behaviour of laying hens
, 2011 Low rates of nest acceptance by laying hens are a major problem in commercial poultry farming operations with aviary systems, leading to costly manual collection and cleaning of mislaid eggs.
von Borell, E. +7 more
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Poultry Science: Climate change is increasingly manifesting in temperate regions. Laying hens are highly sensitive to heat stress and mitigation strategies should be implemented to reduce the negative effects.
Renée De Baets +3 more
doaj +1 more source
Animal Welfare, 1996 The Agriculture and Resource Management Council of Australia and New Zealand in July 1993 requested the Sub-Committee on Animal Welfare to undertake a review process in relation to an Australian policy for the housing of laying hens. This request was driven by a need to address the issue and its animal welfare aspects at the national level, and to ...
openaire +1 more source
Effects of dietary energy concentration, NSP concentration and particle sizes of NSP on digesta passage rate and gut development in laying hens [PDF]
, 2008 Er is een lineair verband gevonden tussen de hoeveelheid NSP die een leghen dagelijks opneemt en de verblijfstijd van het voer in de krop en klier-/spiermaag. Dit verband was meer uitgesproken bij grove in plaats van bij fijne vezels.
Peet-Schwering, C.M.C., van der +4 more
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Battery eggs sale and production in the ACT [PDF]
On 31 July 1998 the Commission received a request from the Treasurer to undertake, on behalf of the Government of the Australian Capital Territory, a study into whether it is in the public interest for the ACT to: .
Productivity Commission
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The Economics of Regulations on Hen Housing in California [PDF]
Beginning January 1, 2015, conventional cage housing for egg-laying hens is scheduled to be prohibited in California. We consider the economic implications of the new hen housing regulations on the California shell egg industry.
Sumner, Daniel A. +3 more
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