Zobrazeno 1 - 10
of 33
pro vyhledávání: '"R. V. Boucher"'
Publikováno v:
Poultry Science. 32:989-993
STUDIES of chemical and physical characteristics of carcasses have contributed to our basic knowledge of poultry science and have been useful as a guide in evaluating diets or their components. With the latter in mind Ackerson et al. (1938) analyzed
Publikováno v:
Poultry Science. 36:914-917
THE effects of fiber content and physical form of turkey diets have been studied as separate experimental entities. Only a few reports have appeared in the literature on the effect of dietary energy level on the performance of turkeys. The present pa
Publikováno v:
Poultry Science. 36:1217-1221
ROBERTSON et al. (1948) reported that an increase in volume of a diet from a value of 0.64 to one of 1.10 liters per pound of diet through the use of wheat by-products and oats lowered chick weight about 20 percent at 4 weeks of age. Their data indic
Publikováno v:
Poultry Science. 33:328-332
THE influence of antibiotics on chick growth has been established by such investigators as Moore et al. (1946), Stokstad and Jukes (1950), McGinnis et al. (1950) and Whitehill et al. (1950). The value of animal protein in the diet has been studied ex
Publikováno v:
The Journal of Nutrition. 45:131-141
Publikováno v:
Poultry Science. 44:1164-1173
INTRODUCTION SINCE it became known that certain antibiotics stimulate growth rate and increase feed efficiency of animals when included in minute quantities in feed, much research has been devoted to elucidating the mode of action of these substances
Publikováno v:
Poultry Science. 21:536-539
IN A recent communication (Ott, Boucher, and Knandel, 1942) the performance of Single Comb White Leghorns was reported for the first 24 weeks of age on two experiments in which four all-mash rations varying in feeding-cane molasses content were fed i
Publikováno v:
Poultry Science. 33:1159-1163
ONE of the first to conduct extensive studies of energy utilization with chickens was Fraps (1946) who showed that available energy was related to the fiber content of feedstuffs. Heuser et al. (1945) and Bird and Whitson (1946) reported that rations
Publikováno v:
Poultry Science. 31:273-283
INTRODUCTION THE wild populations of bobwhite quail have decreased greatly in number within recent years. This decrease has been general throughout the northern limits of the bobwhite’s range. Tremendous numbers of game farm reared quail have been
Publikováno v:
Poultry Science. 33:332-344
INTRODUCTION THE use of antibiotics in animal feeds has opened up a new field of investigation. The growth promoting effect of antibiotics has been observed in chickens, turkeys, pigs and rats. Responses vary with the species, the type of diet, level