Impact eggshell condensation and heat stress for laying hens: K. de Reu et al
نویسندگان
چکیده
Ministry of the Flemish Community, Agricultural Research Centre, Department of Animal Product Quality and Transformation Technology, Brusselsesteenweg 370, 9090 Melle, Belgium Laboratory of Agricultural Machinery and Processing, Department of Agro-Engineering and Economics, Catholic University Leuven, Kasteelpark Arenberg 30, 3001 Heverlee, Belgium Laboratory of Food Microbiology and Food Preservation, Department of Food Technology and Nutrition, University of Ghent, Coupure Links 653, 9000 Ghent, Belgium *[email protected]
منابع مشابه
EHects of dietary sodium bicarbonate on egg production and egg quality of laying hens during high summer temperature
Eggshell quality is one of the most common problems in layer stocks. Results from the field have shown that the incidence of cracked eggs in layer stocks ranges from 1-2% to 30-35% (ALTAN and ALTAN, 1992). This problem is more specific in older flocks when the birds were raised under high environmental temperatures. The eggshell consists of 98% calcium carbonate. The necessary Ca for shell form...
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Institute for Agricultural and Fisheries Research, Technology and Food Unit, Brusselsesteenweg 370, 9090 Melle, Belgium; Animal Breeding and Genomics Centre, Wageningen University, P.O. Box 338, 6700 AH Wageningen, The Netherlands; Institute for Agricultural and Fisheries Research, Animal Science Unit, Scheldeweg 68, 9090 Melle, Belgium; Provincial Centre for Applied Poultry Research, Poiel 77,...
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The aim of this study was to compare the blood plasma mineral profile (Ca, P, K, Mg, Zn, Cu and Se) and egg-shell quality (eggshell weight, eggshell breaking strength and thickness) of laying hens housed in three different housing systems (traditional cage system, enriched cage system and deep litter system). In each housing system, 12 ISA Brown laying hens were observed during the laying perio...
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The effects of dietary supplemental vitamin E (VE) and chromium (Cr) on egg production (EP), egg quality, serum concentrations of Cr and insulin and activity of glutathione peroxidase (GSH-Px) were evaluated in Lohmann LSL-Lite laying hens reared under thermoneutral or heat stress (HS) conditions. A total of 144 laying hens were distributed in 24 cages and assigned to feed four diets including ...
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