Index of Subjects, Volume XXI Accumulation of Protein in the Oviduct of the Fowl, The, 81 Acorns of the Willow Oak (Quercus Phellos), a Source of Vitamin A Activity,* 473 Acorns One Cause of Olive-Colored Yolks, 497
Calcium and Phosphorus Requirements of Single Comb White Leghorn Pullets, T h e * 469 Calibration of the Development of the Chick Under Improved Conditions of Incubation and the Relationship of Developmental Rate to Age of Hen and Hatchability Record, A, 294 Carotene and Riboflavin in Alfalfa, 19S Check List of Poultry Bulletins (1931-1940), A, 58 Chick Feeding Experiments with Solvent-Extracted Tung Oil Meal, 451 Clinical Pathology of Trichomoniasis of the Lower Digestive Tract of Turkeys,* 464 Comparative Gonadotropic Potency of Unfractioned Extracts of Poultry Pituitaries, 161 Comparative Rates of Absorption of Egg Oil and Cod Liver Oil, The, S28 Comparative Viability of Unselected Leghorns and Strains Bred for Resistance or Susceptibility to the Avian-Leukosis Complex, The,* 472 Comparative Vitamin D Requirements of White Leghorn and Crossbred Chicks, The, 511 Comparison of Corn, Milo, and Hegari in the Diet of Laying Hens, The, 410 Composition of Turkeys of Different Breeds, The,* 471 Contributions of Raymond Pearl to Poultry Science, 99 Corn Dried Distillers' By-Products in Laying Rations* 475 Cow Manure as a Source of Certain Vitamins for Growing Chicks,* 471 Cow Manure as a Source of Certain Vitamins for Growing Chicks, 554 Crossbred Broilers and Layers Compared with Related Purebreds,* 465 Crossbreeding and Heterosis in Turkeys, 311 Crosses Between Inbred Lines of the Domestic Fowl, 548 •Abstracts of papers prepared for presentation at the cancelled meeting, August, 1942. [574]
Effect of Age and Weight of Turkey Eggs on the Length of the Incubation Period, The, 532 Effect of Alfalfa Leaf Meal and Dried Cereal Grass on Egg Production and Hatchability, The, 301 Effect of Manganese Sulphate on the Stability of Vitamins A and D of Cod Liver Oil When Stored in Mixed Feed, The, 200 Effect of Mineral Supplements on the Availability of Manganese, The, 8 Effect of Season and Heredity on the Incidence of Blood Spots,* 473 Effect of Soybean Meal on Hatchability, The,* 467 Effect of the Diet of the Hen on the Shank Color of Her Day-Old Chicks, The, 525 Effects of Dubbing White Leghorn Males, The, 437 Effects of Nutrition on Variability in the Growth of Chickens, 230 Egg Production and Mortality of White Leghorns Fed High and Low Protein Rations,* 468 Environmental Temperature and Infertility in White Leghorns, 18 Evidence of New Growth Factors for Chicks, 566 Experimental Induction of Ovulation in the Domestic Fowl, The,* 469 Experiments on the Storage of Vitamin A by Growing Turkeys, 357 Experiments with X-Rays on the Roles of Lymphocytes and Body Temperatures in the Resistance of Chicks to Salmonella Pullorum, 561 Factors Other Than Manganese Required to Prevent Perosis in Chicks,* 474 Fat Absorption in the Laying Hen, 407 Feeding-Cane Molasses as a Constituent of Poul-
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Blood Values of Hens Fed a Yeast-Fermented Mash Supplemented Adequate Diet, 333 Broodiness and Viability, 370
Decline in Annual Egg Production with Age, The, 455 Developing the Curriculum to Meet the Modern Trends in Production and Marketing, 216 Development of Perosis in Turkey Poults and Its Prevention, The, 422 Development of the Testes and Combs of White Leghorn and New Hampshire Cockerels, 35 Dietary Factors Affecting Feather Growth, 540 Differences Between High and Low Quality Fresh Eggs, 77 Distillers' Dried Solubles as a Vitamin Supplement for Chick Rations,* 478 Diurnal Rhythm of Mitotic Activity in the Seminiferous Tubules of the Domestic Fowl, 130
INDEX OF SUBJECTS
Gizzard Erosion in Growing Chickens, 317 Gizzard Lesions in Day-Old Chickens, 203 Gizzard Lesions in Day-Old Chicks. I. Their Relationship to Subsequent Growth and Mortality and Their Prevalence, 47 Gizzard Lesions in Day-Old Chicks. II. The Time of Origin and Factors Influencing the Cause of Gizzard Lesions in Chicks, 52 Gizzard Lesions in Day-Old Chicks. III. Can Severity of Incidence Be Reduced by Dietary Control, 108 Grade and Price Comparisons of Del-Mar-Va and Virginia Broilers and Fryers, 70 Growth of Turkeys. II. Relative Growth of the Tarsometatarsus, 505 Growth Rate of Pullets in Relation to Production Characteristics and Viability,* 470 Hatchability in Relation to the Fat Content of the Diet, 521 Hormonal Induction of "Broodiness" in Roosters,* 474 Hydrogen Ion Concentration in Avian Digestive Tracts, The, 445 Improved Inexpensive Individual Egg Record, An, 128 Improvement of General Viability in Single Comb White Leghorns Through Breedings,* 465 Importance of Viability to Wartime Egg Production, The,* 467 Incubation Studies with Duck Eggs,* 478 Influence of Diets High and Low in Protein on the Growth Rates of Chickens Infected with the Tapeworm, Raillietina cesticillus, 111 Influence of Different Daily Periods of Illumination upon the Body Weight of White Leghorn Males, The,* 473
Influence of Processing by Oiling on the Interior Quality of Shell Eggs After Storage, The,* 467 Influence of Starting Rations upon Subsequent Growth,* 477 Influence of Sulfaguanidine on Acquired Resistance in Chickens to Cecal Coccidiosis,* 464 Inheritance in the Domestic Fowl of a Lethal Condition Affecting Both Mandibles,* 474 Inheritance of Egg Shape,* 473 Interference of Heated Diets with Calcification in Chickens, 185 Large Unilateral Fibrosarcoma of the Pectoral Muscles of a Fowl, A, 291 Limited Range for Growing Turkeys, 243 Methods of Obtaining Blood of Fowl for Complete Blood Examination, 30 Mineral Partition During Intestinal Digestion of Normal- and High-Mineral Rations by Chicks, 3 Minerals in Rations of Battery Brooder Chicks, 247 Miscellaneous Observations on the A.O.A.C. Vitamin D Assay,* 469 Modifications in the Chick Vitamin D Assay Procedure, 329 Nature of Egg Yolk Discoloration Produced by Cottonseed Meal, The, 374 Nature of the Defense Mechanism in Resistance to Pullorum Disease in the Domestic Fowl, The,* 478 Nutritional and Economic Values of a Bluegrass Pasture for Laying Hens,* 466 Nutritional Significance of Biotin in Chick and Poult Nutrition, T h e * 476 Nutritive Properties and Use of Crab Meal, The,* 475 Observations on the Shank Pigmentation of Chicks,* 471 Observations on the Stability of Vitamin D, 361 On the Lopping of Combs in White Leghorn Females, 430 Pathogenicity of Aerobacter Aerogenes and Escherichia acidi lactici for Turkeys and Their Response to the Agglutination Test for Pullorum Disease, The, 306 Pantothenic Acid Content of Feedstuffs as Determined by Microbiological Assay, The, 136 Pantothenic Acid Requirement of Chicks, The, 142 Pastures for Developing Pullets and for Laying Hens,* 475
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try Rations. I. Molasses for Growing Chickens, 340 Feeding-Cane Molasses as a Constituent of Poultry Rations. II. Molasses for Adult Chickens, 536 Feeding of Corn Cockle to Chickens, The, 86 Feeding of Single Massive Doses of Vitamin D to Birds, The,* 472 Fever Therapy in the Control of Cecal and Liver Trichomoniasis in Turkeys, 120 Flowers of Sulphur and Charcoal in the Prevention of Experimentally Produced Coccidiosis, 23 Further Observations on Choline and Yeast in Chick Nutrition, 271 Further Observations on Vitamin D Stability,* 471
575,
576
INDEX OF SUBJECTS
Quantitative Requirement of the Hen for Pantothenic Acid,* 470 Rate of 'Growth as a Factor in the Incidence of Gizzard Erosion in Chicks, 189 Relation of Diet to Hatchability of Eggs Produced in Batteries and in Open-Front Houses,* 465 Relation of Riboflavin to Growth and Curled-toe Paralysis in Chicks, The, 147 Relation of Time of Insemination to Percent Fertility, 253 Relationship Between Body Temperature and Genetic Resistance to Salmonella Pullorum in the Fowl,* 477 Removal of the Fowl Tapeworm Raillietina cesticillus by Short Periods of Starvation, The, 220 Removing Gizzard Contents from Living Birds, 45 Results of Hypophysectomy in Growing Chickens,* 474 Riboflavin Requirement of Turkeys for Hatchability and Growth, The,* 466 Sage Grouse Coccidiosis Not Transmissible to Chickens, 560 Seasonal Variation in Semen Production in Male Fowls,* 475 Semen Production of White Leghorn Males from Strains Selected for High and Low Fecundity, 173 Sexual Activity in Guineas Subjected to All-night Lights,* 468 Showmanship in the Classroom, 94 Size of Thymus and Bursa Fabricius in Relation to Rate of Growth in Chicks, 116
"Slide Rule" for Determining Time Interval; 462 Some Physiological and Morphological Com isons Between Standard Bronze, Broadbreasl Bronze and U.S.D.A. Small-Type Turkeys* 4* Some Studies of Leg Bone Deformities in Turke; 500 Strains of White Plymouth Rocks for Specific Eel nomic Purpose's,* 472 Studies in Mineral Nutrition of Laying Hens. The Mangane:e Requirement, 277 Studies in Mineral Nutrition of Laying Hens. IL Excess of Calcium in the Diet, 321 Studies on Certain Filtrable Viruses. IV. A note i the Immunogenic Properties of Yolk, Albumii and Embryo Proper in Chick Embryos Inocv lated with Fowl Pox Virus,* 478 Study of Calcium Metabolism in the Laying by the Comparative Slaughter Method, The, 2f Study of Modified Expressions of Sex-Linked Earli Feathering, A * 468 * Study of Vitamin D from Different Sources am Its Effect on the Bone Ash Curve* 471 Study on the Administration of Hesperidin, Ascorbic Acid, and Massive Doses of Vitamin D to Vitamin K-Deficient Chicks, A, 256 Teaching Agriculture to Adult Groups by the Discussion Method, 353 Time of Pigment Deposition in Brown Shelled Hen Eggs and in Turkey Eggs, 515 Trichomoniasis of the Upper Digestive Tract o f Domesticated Birds,* 466 Utilization of Fat by Chickens—A Method-fpr Determining the Absorption of Nutrients,*_479 Utilization of Urea Nitrogen by Growing Chicks,1' Value of B-Y Riboflavin Supplement* for Replacing Dried Skimmilk in an All-Mash Laying Ration, The,* 476 Value of Dairy Products in Nutrition. I. Basal Rations for Chick Assays, 387 Value of Dairy Products in Nutrition, The. II. Growth Factors for Chicks, 396 Vitamin B8 Requirement of the Chick, 379 Vitamin D Requirements of Turkey Poults, 260
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Percentage Utilization and Supplementary Relationships of Certain Protein Concentrates in Semi-Purified Basal Diets for Growing Chickens, 346 Period of Protection Afforded by Sulphur in Prevention of Eimeria Tenella Infections, 155 Poisoning of Turkey Poults from Whorled Milkweed (Asclepias galioides), 263 Poultry Course for Future County Agents and Vocational Agricultural Teachers, A,* 470 Preliminary Study of the Effect of Sunlight, Dubbing, and Fractionated Anterior Pituitary Extract upon Growth, Endocrine Glands, and Sexual Capacity of Single Comb White Leghorn Cockerels, A, 483 Premature Expulsion of Eggs by Hens Following Injection of Whole Posterior Pituitary Preparations, 416
Whey Solubles as a Source of Growth Fact Chick Rations,* 465 X-Ray Radiation in Detection of Fertility in Fresh Eggs* 477
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