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Publikováno v:
Poultry Science. 54:270-274
Diets with and without sodium bicarbonate were fed to commercial Leghorn type hens in an attempt to improve egg shell quality. Trials were conducted with layers housed on the floor and in cages during hot weather and with caged layers during the wint
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::873680d8ad061c223806da1e96096928
https://doi.org/10.3382/ps.0540270
https://doi.org/10.3382/ps.0540270
Publikováno v:
Journal of Toxicology and Environmental Health. 16:163-172
A 1:1 mixture of aldicarb sulfoxide/aldicarb sulfone was administered to young adult Wistar rats via the drinking water at nominal concentrations of 19.2, 4.8, 1.2., 0.3, 0.075, or 0 ppm for 29 d. Blood was collected after 8, 15, and 29 d of treatmen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8da3e0f1079627ea5d54f048c615b9f9
https://doi.org/10.1080/15287398509530730
https://doi.org/10.1080/15287398509530730
Autor:
Paul E. Waibel, F. R. Frank
Publikováno v:
Poultry Science. 39:1049-1056
THE requirement of the hen for total protein is given at 15% of the diet by the National Research Council (1954). Individual investigators have found a great deal of variation in this requirement; for example, Miller et al. (1957) and Thornton et al.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d60f03b27ee08b1987168111c348762a
https://doi.org/10.3382/ps.0391049
https://doi.org/10.3382/ps.0391049
Publikováno v:
Poultry Science. 43:1228-1235
EGG shell strength has been measured directly by methods involving techniques of crushing, impact, and puncturing. Kennard (1925), Romanoff (1929), Morgan et al. (1930), Bryant and Sharp (1934), Stewart (1936), Gutowska and Parkhurst (1942), Heuser a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::704cfa8f2e5e6fd7ec46b4e0236ef285
https://doi.org/10.3382/ps.0431228
https://doi.org/10.3382/ps.0431228
Publikováno v:
Poultry Science. 44:63-69
STUDIES of the chemical properties of egg shells and their relationship to shell strength have been very limited. Almquist and Burmester (1934) investigated an abnormal type of shell which they termed a “glassy shell.” It was found to have a redu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cec354069a14751ab88e9f2c4bca512
https://doi.org/10.3382/ps.0440063
https://doi.org/10.3382/ps.0440063
Autor:
Ray E. Burger, F. R. Frank
Publikováno v:
Poultry Science. 44:1604-1606
Helbacka et al. (1963) reported that exposure of laying hens to an atmosphere containing 5 percent carbon dioxide for 24 to 48 hours led to a marked decrease in the calcification of the shell. They suggested that deposition of calcium carbonate is de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9938514932920d1657000ce8c41efe34
https://doi.org/10.3382/ps.0441604
https://doi.org/10.3382/ps.0441604
Publikováno v:
Avian diseases. 21(2)
Duplicate trials with mibolerone at a dose of 1 microng/g of diet for the first 49 days of age reduced the incidence of lymphoid leukosis (LL) significantly (P less than .005) in chickens inoculated as day-old chicks with Rous-associated virus type 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::9ecacfdcce397014088a6d5ed156f74d
https://pubmed.ncbi.nlm.nih.gov/869826
https://pubmed.ncbi.nlm.nih.gov/869826