Results 111 to 120 of about 787,178 (288)
Poultry Science, 2015 The US egg industry is exploring alternative housing systems for laying hens. However, limited published research related to cage-free aviary systems and enriched colony cages exists related to production, egg quality, and hen nutrition. The laying hen's
D. Karcher +5 more
semanticscholar +1 more source
Journal of the American Association of Instructors and Investigators of Poultry Husbandry, 1916 Abstract During the past three or four years, poultry raisers have been reading more or less about sour skimmed milk as a food stuff for poultry of all kinds. Particularly has the public been told through many poultry papers and station publications of the probable value of this bi-product of the dairy as a food for baby chicks.
openaire +2 more sources
Promoting health and welfare in organic laying hens. Recommendations to ensure hen health and welfare in organic husbandry [PDF]
, 2015 In the HealthyHens project we investigated laying hen health and welfare in organic poultry systems in eight European countries. This leaflet presents our findings and recommendations.
Bestman, Monique +13 more
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, 2018 The aim of the study was to evaluate egg shell quality characteristics, mineral content in the egg shell, and serum mineral concentration during the egg formation process as influenced by oviposition time and ambient temperature at the beginning and end ...
E. Tůmová, R. Gous, N. Tyler
semanticscholar +1 more source
Crude glycerin in co-composting with laying hen manure reduces N losses
Scientia Agricola: The composting of laying hen manure is an efficient way of treating waste and producing an organic fertilizer with excellent characteristics; however, the high N losses reduce its concentration in the resulting fertilizer. Associating this residue with
Marco Antonio Previdelli Orrico Junior +6 more
doaj +1 more source
Apolipoprotein VLDL-II inhibits lipolysis of triglyceride-rich lipoproteins in the laying hen.
Journal of Lipid Research, 1990 In the laying hen, very low density lipoprotein (VLDL) particles contain large amounts of apolipoprotein (apo)-VLDL-II in addition to apoB. These triglyceride-rich lipoproteins are transported from the liver primarily to growing oocytes.
WJ Schneider +3 more
doaj +1 more source
Validation of an automated mite counter for Dermanyssus gallinae in experimental laying hen cages
Experimental & applied acarology, 2015 For integrated pest management (IPM) programs to be maximally effective, monitoring of the growth and decline of the pest populations is essential. Here, we present the validation results of a new automated monitoring device for the poultry red mite ...
M. Mul +5 more
semanticscholar +1 more source
Feeding Behaviors of Laying Hens with or without Beak Trimming [PDF]
, 2002 This study quantifies feeding behavior of the W-36 White Leghorn laying hen (77-80 weeks old) as influenced by the management practice of beak trimming.
Gates, Richard +5 more
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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
openaire +3 more sources
Öko-Legehennen: Ressourceneffizienz und Umweltschutz versus Auslaufmanagement und Flächenbeimessung [PDF]
, 2017 The minimal pasture size of 4 m² per hen for free range laying hens proves to be critical when seen under aspects of environmental protection. Taking a flock size of 1.000 laying hens and a pasture size of 4 m² per animal as a basis and assuming that ...
Deerberg, Friedhelm (freier Berater) +1 more
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