caa a22 4500 397542461 CHVBK 20180308164730.0 cr unu---uuuuu 161202s1995 xx s 000 0 eng 10.1093/japr/4.3.254 doi (NATIONALLICENCE)oxford-10.1093/japr/4.3.254 Keshavarz Kavous Department of Animal Science, 247 Morrison Hall, Cornell University, Ithaca, NY 14853; Phone: (607) 255-8143; FAX: (607) 255-9829 Impact of Feed Withdrawal and Dietary Calcium Level on Force-Rested Hens [Elektronische Daten] [Kavous Keshavarz] Two experiments attempted to determine two questions: whether the duration of force-rest can be reduced satisfactorily below the standard periods of 10 to 14 days and whether the Ca level during the recovery period can have an effect on performance of force-rested hens. The periods of force-rest were 5, 7, 10, or 14 days; the Ca levels during the recovery period were 1, 2, and 4%. In Experiment 1, egg production and egg mass were greater (P < .05) for hens experiencing 10 days of force-rest than for those with 5 or 7 days force-rest. Specific gravity was greater (P < .05) for hens exposed to 10 days of force rest than for hens exposed to 5 days. In Experiment 2, egg production and egg mass did not differ among various force-rest regimens (P>.05), but increased consistently with the length of the force-rest period. Specific gravity was greater for hens exposed to 14 days than for hens exposed to 5 or 7 days force-rest (P < .05). Production performance, specific gravity, and bone ash were not influenced by Ca levels during the recovery periods. © 1995 Applied Poultry Science, Inc. Ca in the recovery diet nationallicence force-rest period nationallicence production performance nationallicence shell quality nationallicence Journal of Applied Poultry Research Oxford University Press 4/3(1995), 254-264 1056-6171 4:3<254 1995 4 japr https://doi.org/10.1093/japr/4.3.254 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/japr/4.3.254 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Keshavarz Kavous Department of Animal Science, 247 Morrison Hall, Cornell University, Ithaca, NY 14853; Phone: (607) 255-8143; FAX: (607) 255-9829 NATIONALLICENCE 773 0- Journal of Applied Poultry Research Oxford University Press 4/3(1995), 254-264 1056-6171 4:3<254 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