Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Jon O. Nordstrom"'
Autor:
Jon O. Nordstrom, L. E. Ousterhout
Publikováno v:
Poultry Science. 62:525-531
Variations in light:dark ratios and timing schedules of 26- and 28-hr ahemeral cycles were examined for their effects on shell quality and egg weight. In two experiments utilizing 2578 White Leghorn Laying hens, 16-week long ahemeral treatments were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87c290155a4c7bcd8c06a95166684241
https://doi.org/10.3382/ps.0620525
https://doi.org/10.3382/ps.0620525
Autor:
Jon O. Nordstrom
Publikováno v:
Poultry Science. 59:1711-1714
Two experiments were conducted on 63-week-old Single Comb White Leghorn laying hens to determine the albumen quality of eggs laid during molt induction and those laid immediately upon resumption of lay following the molt. The first experiment utilize
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70c16f444993ad53f05c7c7a694d7c24
https://doi.org/10.3382/ps.0591711
https://doi.org/10.3382/ps.0591711
Autor:
Jon O. Nordstrom
Publikováno v:
Poultry Science. 59:2749-2753
The effect of limiting hens access to feed during formation of eggs laid in the afternoon on the shell quality of these eggs was examined using 225 SCWL laying hens, 50 weeks of age. The hens were housed in individual cages in an enclosed, fan-ventil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d72d1b719031bfffbc79bf5e61bb032a
https://doi.org/10.3382/ps.0592749
https://doi.org/10.3382/ps.0592749
Autor:
Jon O. Nordstrom
Publikováno v:
Poultry Science. 61:804-812
The effect of ahemeral light-dark cycles on shell quality and laying hen performance near the end of the laying year was measured using 1342 Single Comb White Leghorn laying hens. The hens were housed in multiple-bird cages in 18 separate, windowless
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39ce3303008a32d7e1109cecbdc67dfb
https://doi.org/10.3382/ps.0610804
https://doi.org/10.3382/ps.0610804
Autor:
Jon O. Nordstrom, L. E. Ousterhout
Publikováno v:
Poultry Science. 61:1991-1995
Egg weight (EW), egg specific gravity (SG), shell thickness (ST), and shell weight (SW) were determined individually for 1853 eggs ranging in weight from 41 to 70 g. The eggs were laid by three groups of Single Comb White Leghorn (HN SW (g) = −5.97
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e946a104b9cdc71d02db04fbc9d98ea
https://doi.org/10.3382/ps.0611991
https://doi.org/10.3382/ps.0611991
Publikováno v:
Poultry Science. 59:1860-1863
Increasing dietary lead concentrations from 0 to 2000 ppm linearly decreased the weight of two-week-old chicks to approximately 70% of that of the controls. The growth depression caused by the lead was lessened by increasing the dietary calcium and p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21fef8332cef027070c953ec7989f30c
https://doi.org/10.3382/ps.0591860
https://doi.org/10.3382/ps.0591860
Autor:
Jon O. Nordstrom
Publikováno v:
Poultry Science. 52:1687-1690
An accelerated transit time of the developing egg through the oviduct could account for the decreased quantities of albumen and shell secreted by laying hens exposed to high environmental temperatures. To examine this possibility, the time interval (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65b44f4dab53334520b206faf74280c1
https://doi.org/10.3382/ps.0521687
https://doi.org/10.3382/ps.0521687
Autor:
Arthur H. Smith, Jon O. Nordstrom
Publikováno v:
Poultry Science. 49:329-330
Clearance studies employing the single injection technique require that several blood samples be taken at specified time intervals, following the initial injection of the test substance, to determine the rate of disappearance of that substance from t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::160a06acad0f2a22668a955c715ca259
https://doi.org/10.3382/ps.0490329
https://doi.org/10.3382/ps.0490329
Autor:
Jon O. Nordstrom
Publikováno v:
Poultry Science. 61:2305
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::287f97f7df11da1bdec6598c4403b74e
https://doi.org/10.3382/ps.0612305
https://doi.org/10.3382/ps.0612305