caa a22 4500 397542682 CHVBK 20180308164730.0 cr unu---uuuuu 161202s1995 xx s 000 0 eng 10.1093/japr/4.4.411 doi (NATIONALLICENCE)oxford-10.1093/japr/4.4.411 Factors Which May Affect the Precision of Experiments Employing Chickens [Elektronische Daten] [W. B. Gross, P. B. Siegel] Reported in this paper are factors which can increase differences between experimental group means and/or reduce variation with groups. Factors which affected the precision of research results included sex and body weight distribution with experimental caged flocks; comb type and beak trimming which influenced social rank; dose of chemicals and infectious agents and antigens; and chicken-human relationships. Experimental precision was especially affected when these factors influenced some but not all experimental groups. Increased precision of experimental procedures allows for reducing the numbers of animals and/or observations needed for experiments. © 1995 Applied Poultry Science, Inc. Chicken-human relationship nationallicence experimental chickens nationallicence genetic stocks nationallicence infectious agents and antigens nationallicence research nationallicence Gross W. B. Department of Large Animal Clinical Science, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061; Phone: (540) 552-2154; FAX: (540) 231-3713 aut Siegel P. B. Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061 aut Journal of Applied Poultry Research Oxford University Press 4/4(1995), 411-421 1056-6171 4:4<411 1995 4 japr https://doi.org/10.1093/japr/4.4.411 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/japr/4.4.411 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gross W. B. Department of Large Animal Clinical Science, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061; Phone: (540) 552-2154; FAX: (540) 231-3713 aut NATIONALLICENCE 700 1- Siegel P. B. Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061 aut NATIONALLICENCE 773 0- Journal of Applied Poultry Research Oxford University Press 4/4(1995), 411-421 1056-6171 4:4<411 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