Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Roy E. Roberts"'
Publikováno v:
Poultry Science. 22:323-330
THE value of distillery by-products in animal nutrition has been recognized for many years, and recently a new distillery by-product, distillers’ dried solubles, has been shown to be of value as a source of vitamins for the growing chick and laying
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84387e02b315776d5e121787f235daf2
https://doi.org/10.3382/ps.0220323
https://doi.org/10.3382/ps.0220323
Autor:
Roy E. Roberts
Publikováno v:
Poultry Science. 7:220-224
It is customary in chick feeding to withhold feed from chicks until they are 48 to 72 hours old. The usual recommendation for this practice is based upon the fact that the chick absorbs the yolk just prior to hatching, which supplies nourishment for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::450650d092c34358b64044a731855f4e
https://doi.org/10.3382/ps.0070220
https://doi.org/10.3382/ps.0070220
Autor:
Roy E. Roberts, Carey W. Carrick
Publikováno v:
Poultry Science. 13:135-140
GROUND corn, wheat bran, and wheat middlings are commonly used to make up a large part of the ration for starting chicks. At times it may be economical, provided the efficiency of the ration is not less-ened, to substitute oats or wheat for the wheat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4dfd5881507a2db81a549532ac5ebe9d
https://doi.org/10.3382/ps.0130135
https://doi.org/10.3382/ps.0130135
Publikováno v:
Poultry Science. 32:945-949
NORRIS (1935) reported that the bobwhite quail needed a 27 percent protein ration for the most rapid growth to eight weeks of age. Stadelman et al. (1945) found that the best results were obtained with a mixture running slightly over 28 percent crude
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fb6c623ab86670345a2bc690c62068f
https://doi.org/10.3382/ps.0320945
https://doi.org/10.3382/ps.0320945
Autor:
Roy E. Roberts
Publikováno v:
Poultry Science. 2:10-15
The Government is providing training for disabled soldiers at Purdue University the same as at other Land Grant Colleges. There are two classes of these men: those who are taking regular university courses and those whose previous training does not e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd7e68d53455b22249aca1f20b23339d
https://doi.org/10.3382/ps.0020010
https://doi.org/10.3382/ps.0020010
Autor:
Roy E. Roberts, Carey W. Carrick
Publikováno v:
Poultry Science. 22:425-432
SEVERAL studies, reviewed by Roberts and Carrick (1935), show that during the first 8 to 12 weeks the growth rate increases as the level of protein in the ration is increased, at least up to a level of 18 to 20 percent of protein. These authors found
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e91847e290101f0bb58af0b65845c79
https://doi.org/10.3382/ps.0220425
https://doi.org/10.3382/ps.0220425
Publikováno v:
Poultry Science. 21:566-571
SINCE 1925 a rather extensive amount of literature has been published concerning the chick requirements for factors in the vitamin B complex. This literature has been recently reviewed by Ewing (1941). Little progress has been made since 1940 in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86cd5a4e29cb7c639ef7d2abe7255a51
https://doi.org/10.3382/ps.0210566
https://doi.org/10.3382/ps.0210566
Publikováno v:
Poultry Science. 24:270-276
NUMEROUS workers have investigated the supplementary effect of small amounts of animal protein feeds in diets containing vegetable proteins. Berry, Carrick, Roberts, and Hauge (1943) pointed out that the proteins of soybean oil meal were of excellent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84407a1c3bc038880973be66915f13d0
https://doi.org/10.3382/ps.0240270
https://doi.org/10.3382/ps.0240270
Publikováno v:
Poultry Science. 25:479-485
DURING the past few years, experiments have been in progress at this Station to study the deficiencies of chick rations consisting largely of corn and soybean oil meal supplemented with minerals and vitamins A and D. Recent work by Berry et al. (1943
Externí odkaz:
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https://doi.org/10.3382/ps.0250479
https://doi.org/10.3382/ps.0250479
Publikováno v:
Poultry Science. 23:294-297
CHOLINE has been shown by Jukes (1940, 1941) to prevent perosis and promote growth in turkeys and chicks. Soybean oil meal was observed to have perosis-preventing and growth-promoting properties. These were ascribed at least in part to the choline co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::578bba656aaef3781053c4c2ae7ffdd2
https://doi.org/10.3382/ps.0230294
https://doi.org/10.3382/ps.0230294