Studies on the Nutritional Requirements of Poults

Autor: James C. Fritz, John L. Halpin, John H. Hooper
Rok vydání: 1947
Předmět:
Zdroj: Poultry Science. 26:78-82
ISSN: 0032-5791
DOI: 10.3382/ps.0260078
Popis: THE high nutritional requirements of turkey poults make it essential that these requirements be accurately determined in order to avoid waste of feed during periods of critical shortage. Usually the requirements of poults parallel but exceed those of chicks. The National Research Council bulletin on Recommended Nutrient Allowances for Poultry (Cravens, et al, 1944) suggests that a turkey starting mash should contain 24 percent of protein and that it should include at least 4 to 5 percent of animal protein supplements. Hammond, Haynes, Marsden and Titus (1944) concluded that good results could be obtained with turkey starting rations in which all of the protein was derived from vegetable sources. Most workers prefer to retain some animal protein concentrates. Wilgus and Zander (1945) concluded from their chick work that a small amount of animal protein supplement was necessary in order to obtain optimum growth rates. In most investigations soybean meal has . . .
Databáze: OpenAIRE