caa a22 4500 397542984 CHVBK 20180308164731.0 cr unu---uuuuu 161202s1995 xx s 000 0 eng 10.1093/japr/4.2.131 doi (NATIONALLICENCE)oxford-10.1093/japr/4.2.131 Effect of Age and Resting on Hens Laying Eggs with Heavy or Light Shell Weight [Elektronische Daten] [A. G. Abdallah, R. H. Harms, G. B. Russell] Three experiments using Hy-Line W36® hens studied the effect of age and resting on the eggshell quality of eggs with heavy shell weight (HSW) or light shell weight (LSW). Researchers investigated percentage shell (PS), egg weight (EW), and shell weight (SW) for their influence as well. In Experiment 1, EW significantly increased from 52 to 64 wk of age whereas SW did not change with both LSW and HSW hens. Age x shell classes interactions for SW, PS, and SG were not significant. In Experiment 2A, EW increased from 28 to 44 wk in both HSW and LSW hens with no interaction between age and shell classes. Shell weight increased and the age x shell class interaction was significant. En Experiment 2B, EW and SW increased and PS and SG decreased with age. There were no age x shell classes interactions. In Experiment 3A there was a greater increase in SW with LSW hens than with HSW hens, resulting in a significant interaction between age and shell classes. In Experiment 3B EW, SW, SP, and SG increased with age. The age x shell classes interaction was not significant. The SW of eggs from LSW hens continued to be lighter than SW from HSW hens. © 1995 Applied Poultry Science, Inc. Egg weight nationallicence eggshell quality nationallicence shell percentage nationallicence shell weight nationallicence specific gravity nationallicence Abdallah A. G. Department of Dairy and Poultry Sciences, University of Florida, Gainesville, FL 32611-0930; Phone: (904) 392-1931; FAX: (904) 392-3047 aut Harms R. H. Department of Dairy and Poultry Sciences, University of Florida, Gainesville, FL 32611-0930; Phone: (904) 392-1931; FAX: (904) 392-3047 aut Russell G. B. Department of Dairy and Poultry Sciences, University of Florida, Gainesville, FL 32611-0930; Phone: (904) 392-1931; FAX: (904) 392-3047 aut Journal of Applied Poultry Research Oxford University Press 4/2(1995), 131-137 1056-6171 4:2<131 1995 4 japr https://doi.org/10.1093/japr/4.2.131 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/japr/4.2.131 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Abdallah A. G. Department of Dairy and Poultry Sciences, University of Florida, Gainesville, FL 32611-0930; Phone: (904) 392-1931; FAX: (904) 392-3047 aut NATIONALLICENCE 700 1- Harms R. H. Department of Dairy and Poultry Sciences, University of Florida, Gainesville, FL 32611-0930; Phone: (904) 392-1931; FAX: (904) 392-3047 aut NATIONALLICENCE 700 1- Russell G. B. Department of Dairy and Poultry Sciences, University of Florida, Gainesville, FL 32611-0930; Phone: (904) 392-1931; FAX: (904) 392-3047 aut NATIONALLICENCE 773 0- Journal of Applied Poultry Research Oxford University Press 4/2(1995), 131-137 1056-6171 4:2<131 1995 4 japr Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford